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DMS-20PC-1-RL-C
Digital Panel Meter, Self Powered, LED, 3-1/2 Digits, DC Voltage, -2V to +2V
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: MURATA POWER SOLUTIONS
- Product type: Digital Panel Meters
- No. of Digits / Alpha:3-1/2; Meter Function:DC Voltage; Meter Range:-2V to +2V; Digit Height:9.4mm; Panel Cutout Height:21.34mm; Panel Cutout Width:34.04mm; Supply Voltage Min:4.75V; S
- SVHC: No SVHC (17-Jan-2022)
- Meter Range: -2V to +2V
- Digit Height: 9.4mm
- Product Range: -
- Meter Function: DC Voltage
- Panel Cutout Width: 34.04mm
- Supply Voltage Max: 5.25V
- Supply Voltage Min: 4.75V
- Panel Cutout Height: 21.34mm
- No. of Digits / Alpha: 3-1/2
- Operating Temperature Max: 60°C
- Operating Temperature Min: 0°C
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 40.61 € |
| Current stock | 10+ |
| Lead time | 30 days |
## **www.murata-ps.com**
## **- DMS 20PC Series**
3½ Digit, LED Display, Low-Cost, Subminiature Digital Panel Voltmeters
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FEATURES<br>New<br>Low-power blue<br>and green LEDs<br>**----- End of picture text -----**<br>
- Lowest-cost LED meters
- Subminiature size:
- 1.38" x 0.88" x 0.48" (35mm x 22mm x 12mm)
- Large (0.37"/9.4mm) LED display
- Choice of 6 LED colors
- High-intensity or low-power (7mA) red LEDs optional
- Epoxy-encapsulated, 12-pin DIP package with built-in color fi lter and bezel
- 4 differential input voltage ranges
- Factory calibrated, ±1 count accuracy
- Single +5V power supply
- User-selectable decimal point placement
- DISPLAY ENABLE function for "power-down" mode
- DISPLAY TEST and HOLD (optional) functions
0 to +60°C temperature range
DMS-20PC Series, 3½ Digit, LED Display, Digital Panel Voltmeters combine a precision A/D converter; a factory-trimmed, highly stable, voltage reference; and a large (0.37"/9.4mm), easy-to-read LED display in a single package that is only slightly larger than the display itself. Displays are offered in either red, orange, amber, yellow, green or blue colors. High-intensity and low-power (35mW total) red LEDs are also optional.
These low-cost meters are fully self-contained and fully functional. Their subminiature (1.38" x 0.88" x 0.48"), epoxy-encapsulated cases incorporate built-in color fi lters and bezels; are moisture and vibration proof; and function well in the harshest environments. Their 12-pin, dual-in-line confi guration offers component-like, plug-in convenience and maximum versatility. Operating temperature range is 0 to +60°C.
The meters come with one of four, differential, input voltage ranges: ±200mV, ±2V ±20V or ±200V. Input impedance is a minimum 800kΩ. CMRR is typically 86dB (dc to 60Hz), and CMV is ±2V. Input overvoltage protection (on the non-inverting input) is ±250V. Devices are fully calibrated at the factory to an accuracy of ±1 count (±0.05% of full scale range) and never require calibration or adjustment.
A DISPLAY ENABLE function permits the display to be disabled for "power-down" operation. All models have a DISPLAY TEST function. Standard red LED models offer an optional DISPLAY HOLD function.
Small size, low cost and adjustment-free reliability make the DMS-20PC Series the best
choice for all your 3½ digit, LED, DPM applications.
## ~~e~~ **SIMPLIFIED SCHEMATIC DIAGRAM** ~~e~~
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+5V<br>1 V+ 12<br>+5V SUPPLY (–) INPUT LO<br>0.01 2 R2 1<br>–5V µF<br>DISPLAY 2 DC/DC R1 11<br>ENABLE CONVERTER V– (+) INPUT HI<br>909k<br>»+2.0V<br>3 A/D 10 ANALOG<br>5V RETURN<br>0 Vdc CONVERTER COMMON<br>DATA<br>4 9 DISPLAY 3<br>DP 3<br>TEST/HOLD<br>5 af 0 os 8<br>DP 2 _ | 7 iy +5V _ REFERENCE OUT 2<br>4 1 . 02 0 .0 0 0 -<br>6 7<br>DP 1 a O REFERENCE IN —'<br>O o |<br>1 R2 is not used on ±200mV (-0) models or ±2V (-1) models. 2 Only used on ±200mV (-0) and ±2V (-1) models.<br>R2 = 100k on ±20V (-2) models and 9.1k on ±200V (-3) models. 3 Pin 9 is DISPLAY TEST on all but eight models. On those models<br>(-H option), it is DISPLAY HOLD.<br>For full details go to<br>www.murata-ps.com/rohs Figure 1. DMS-20PC Series simplifi ed schematic<br>**----- End of picture text -----**<br>
**Figure 1. DMS-20PC Series simplifi ed schematic**
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**MPM_DMS_20PC.F01** Page 1 of 6
## **- DMS 20PC Series**
## **Performance/Functional Specifi cations**
Typical at TA = +25°C and supply voltage = +5V using the single-ended input circuit, unless otherwise noted.
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Analog Inputs Min. Typ. Max. Units<br>Full Scale Input Range:<br> DMS-20PC-0 – ±200 – mV<br> DMS-20PC-1 – ±2 – Volts<br> DMS-20PC-2 – ±20 – Volts<br> DMS-20PC-3 – ±200 – Volts<br>Input Impedence:<br> DMS-20PC-0, -1 – 1000 – MΩ<br> DMS-20PC-2, -3 – 1 – MΩ<br>Overvoltage Protection ➀ – – ±250 Volts<br>Common Mode Voltage Range – – ±2 Volts<br>CMRR (dc to 60Hz) – 86 – dB<br>Performance<br>Sampling Rate 2.5 reading per second<br>Accuracy (3 minute warm-up):<br> DMS-20PC-0 (Vin = +0.19V) – ±1 ±3 Counts<br> DMS-20PC-1 (Vin = +1.9V) – ±1 ±3 Counts<br> DMS-20PC-2 (Vin = +19V) – ±2 ±3 Counts<br> DMS-20PC-3 (Vin = +190V) – ±2 ±3 Counts<br>Zero Reading (Vin = 0 Volts) “–001” “000” “001”<br>Temperature Drift (0 = +60°C) – ±0.2 ±0.4 Cnts/°C<br>Power Supply Requirements<br>Supply Voltage +4.75 +5.00 +5.25 Volts<br>Supply Current:<br> DMS-20PC-X-RL – +7 +12 mA<br> DMS-20PC-X-BL & -PGL – +12 +17 mA<br> DMS-20PC-X-RS, -RH – +60 +90 mA<br> DMS-20PC-X-RS-H – +60 +90 mA<br> DMS-20PC-X-BS – +75 +100 mA<br> DMS-20PC-X-GS-H – +90 +120 mA<br> DMS-20PC-X-AS, -GS, -OS, -YS – +90 +120 mA<br>Display<br>Display Type and Size 3½ digit, 0.37"/9.4mm high LED<br>Polarity Indication Autopolarity ("–" for negative Vin)<br>Overrange Indication "–1___" for negative inputs<br>"1___" for positive inputs<br>Physical/Environmental<br>Operating Temperature 0 – +60 °C<br>Storage Temperature –20 – +75 °C<br>Humidity (non-condensing) 0 – 95 %<br>Case Material Polycarbonate<br>Weight 0.4 ounces (11 grams)<br>**----- End of picture text -----**<br>
- ➀ Applies for transient or continuous overvoltages applied to (+) INPUT HI (pin 11) with (–) INPUT LO (pin 12) properly connected. Pin 12 is not overvoltage protected (see Figure 1). Voltages applied to pin 12 should not exceed the supply voltage.
- ➁ See Technical Notes.
- ➂ The DISPLAY HOLD function is optional on standard red and green LED models only.
3½ Digit, LED Display, Low-Cost, Subminiature Digital Panel Voltmeters
## **Ordering Information**
## **DMS-20PC - 1 - RS -C**
Add -C for RoHS **Input Range:** 0 = ±200mV Leave blank for standard 1 = ±2V models. 2 = ±20V Add -H for DISPLAY HOLD 3 = ±200V option (available on standard red and green LED models only).
**LED Color:** AS = Standard Amber RS = Standard Red BS = Standard Blue YS = Standard Yellow GS = Standard Green RH = High-Intensity Red OS = Standard Orange RL = Low-Power Red BL = Low-Power Blue PGL = Low-Power Green
Accessories: DMS-20-CP Panel cutout punch DMS-BZL3-C DMS-20 bezel assembly DMS-BZL4-C DMS-20 bezel assembly with sealing gasket DMS-EB2-C Application/evaluation board with standard MOLEX connector, decimal point solder pads and attenuation resistor pads.
A panel-mount retaining clip is supplied with each model.
**See www.murata-ps.com/dpm-availability for model-specifi c availability.**
## **TECHNICAL NOTES**
**1. REFERENCE OUTPUT (Pin 8) and INPUT (Pin 7)** : Pin 8 is a precision reference actively trimmed at the factory. In normal operation, pin 8 must be tied to pin 7 to achieve all listed accuracy and drift specifi cations.
**2. ANALOG COMMON (Pin 10)** : This pin is connected to an internal, low-noise, "relative" ground. It is used in certain differential and "fl oating" measurements as described in the Applications section of this data sheet and Ap Note DMS-AN3 at http://www.murata-ps.com/data/meters/dms-an3.pdf. Pin 10 should not be connected to pin 3 (5V RETURN) or to your system’s analog ground.
**3. Decimal Point Placement** : The location of the decimal point is userselectable, and the decimal point control pins (DP1-DP3) are active low functions. Select the appropriate decimal point by tying the appropriate pin (pin 4, 5 or 6) to pin 3 (5V RETURN). Unused decimal point location pins should be left open.
Hard wiring is preferable, however, you can use logic gates to exercise dynamic control over the location of the decimal point if the following drive conditions are met:
**Model Applied "0" Voltage Load Current*** DMS-20PC-X-XL +0.05V max. 0.7mA max. All Others +0.4V max. 6mA max.
- The driving gates must be able to sink this much current
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**MPM_DMS_20PC.F01** Page 2 of 6
## **- DMS 20PC Series**
## 3½ Digit, LED Display, Low-Cost, Subminiature Digital Panel Voltmeters
**4. DISPLAY TEST/HOLD (Pin 9) Function** : Pin 9 is a dual-function pin. On all standard models (without "-H" suffi x), tying pin 9 to pin 1 (+5V SUPPLY) activates the meter's DISPLAY TEST feature. All display segments, except the decimal points, will be illuminated. The display will show "1888" ("–1888" if a negative input signal is present). Do not leave the meter in the test mode for more than 10 seconds as this will cause the meter's operating temperature to rise and possibly affect its performance. Pin 9 must be left open when the test function is not being used.
On models with the "-H" suffi x (DMS-20PC-1-RS-H for example), pin 9 serves as a DISPLAY HOLD control pin. Tying pin 9 to +5V SUPPLY (pin 1) on these models will hold or "freeze" the current display reading indefi nitely. Pin 9 must also be left open when the hold function is not being used. After disabling DISPLAY HOLD, allow the meter a full 10 seconds to resume normal calibrated operation before holding a new reading.
The DISPLAY TEST or DISPLAY HOLD pin should normally be connected, via a selector switch, to pin 1 (+5V SUPPLY). If automatic, logic-controlled operation is desired, only PNP or MOSFET transistors should be used. The base or gate of these transistors should be driven suffi ciently hard to bring pin 9 within 0.05V of +5V SUPPLY.
**5. DISPLAY ENABLE (Pin 2) Function** : On all models, tying pin 2 to pin 1 (+5V SUPPLY) applies full power to the LED display. This is the normal mode of operating the meter. Leaving DISPLAY ENABLE open (no connection), only turns off the LED display. The meter's analogto-digital converter continues to sample the input signal. Total current consumption with the display off is approximately 400μA (0.4mA). This is a very useful feature if the meter is used in battery-powered equipment.
With the exception of the low-power red LED models (DMS-20PC-XRL), a regulated voltage lower than +5V SUPPLY can be used to dim the display intensity. Display intensity control is best performed with the high brightness, red LED, DMS-20PC-X-RH model. All low-power red LED models must have DISPLAY ENABLE tied directly to pin 1 (+5V SUPPLY). Voltages applied to DISPLAY ENABLE must never be greater than +5V SUPPLY.
**6. Gain Adjust** : There is a gain-adjust potentiometer on the back of each meter. It has approximately ±50 counts (±2.5%) range of adjustment. Since these devices essentially have no zero/offset errors, a gain adjustment is effectively an overall accuracy adjustment. Though they may be performed at any point (except zero), accuracy adjustments are most effective when performed with higher level input signals. The circuit shown in Figure 10 provides ±10% range of adjustment.
**7. Soldering Methods** : All models in the DMS-20PC Series easily withstand most common wave soldering operations. We recommend, however, that you evaluate the effects your particular soldering techniques may have on the meter’s plastic case and high-precision electrical performance. We recommend the use of no-clean solders.
## **8. Suggested Mating Connectors:**
## **Panel mounted:**
Connector housing Murata Power Solutions P/N 4320-01069-0 Terminal type Murata Power Solutions P/N 4400-01032-0 Crimping tool Murata Power Solutions P/N 39-2099000 Wire size 22 to 26 AWG Insulation diameter 0.062" (1.57mm) maximum Stripping length 0.100 to 0.125" (2.54 to 3.17mm) **Board mounted:** Socket Murata Power Solutions P/N 4320-01074-0
## **APPLICATIONS**
DMS-20PC meters are highly versatile devices that can be used in hundreds of applications. The application circuits chosen for this section are ones that have historically received many inquiries.
The schematic in Figure 1 shows that the meter's high-impedance input consists of an op amp powered from a ±5Vdc power supply (the –5V is internally generated). One can easily see why input signals applied to (–) INPUT LO and (+) INPUT HI have to be kept within the power supply rails of ±5V. Also note that only pin 11 has a current-limiting 909kΩ series resistor. High input voltages that have a common ground with pin 3 (5V RETURN) should only be applied to pin 11 ((+) INPUT HI) and never to pin 12. In these high-voltage cases, pin 12 should always be tied to pin 3 (5V RETURN).
The schematic also shows that pin 3 is the meter's zero-volt reference point — regardless of the type of power or signal source used. This is an important point to keep in mind when a digital or analog multimeter is used to make system measurements. The multimeter's negative lead (usually the black one) must be connected to pin 3 (5V RETURN).
**1. Single-Ended Input Confi gurations** : True single-ended measurements can be made with any DMS-20PC meter. The circuit of Figure 2 avoids problems normally associated with ground-loop currents. Separate ground runs should be used for 5V RETURN (pin 3) and (–) INPUT LO (pin 12).
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11 DMS-20PC-1<br>8<br>(+) IN HI REF OUT<br>+<br>VIN<br>–<br>12<br>7<br>(–) IN LO REF IN<br>1 2 6 3<br>+5V SUP DISPLAY DP1 5V RET<br>ENABLE<br>85-264Vac<br>AC to DC Converter<br>**----- End of picture text -----**<br>
**Figure 2.** Single-Ended Input Confi guration
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**MPM_DMS_20PC.F01** Page 3 of 6
## **- DMS 20PC Series**
## 3½ Digit, LED Display, Low-Cost, Subminiature
## **APPLICATIONS**
**2. Differential Input Confi gurations** : Differential measurements can be made with all DMS-20PC meters. Figure 3, though not a practical real-world application, uses a voltage divider to demonstrate the concept of a differential input signal. Be careful not to exceed the ±2V common mode voltage limitation for 5V-powered meters.
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R1<br>DMS-20PC-1 11 1k<br>REF OUT 8 (+) IN HI<br>R2<br>REF IN 7 12 1k<br>DP1 6 (–) IN LO<br>R3<br>1 2 3 1k<br>+5V SUP DISPLAY 5V RET<br>ENABLE<br>85-264Vac<br>AC to DC Converter<br>**----- End of picture text -----**<br>
**Figure 3.** Differential Input Confi guration
**3. Engineering Scaling** : For measuring voltages greater than the full scale input range of a given meter, the input signal must be attenuated. A simple voltage divider (similar to that shown in Figure 4) will scale the input to within the range of the selected meter. R1 and R2 should be precision, ±1%, metal-fi lm resistors with absolute TCR's less than 50ppm/°C. See Ap Note 4 for more information on engineering scaling.
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50kΩ < R1 + R2 < 10MΩ<br>R2<br>x VIN = Reading<br>R1 + R2<br>R1 11 DMS-20PC-1<br>(+) IN HI 8<br>VIN REF OUT<br>R2<br>12<br>– (–) IN LO 7<br>REF IN<br>1 2 3<br>+5V SUP DISPLAY 5V RET<br>ENABLE<br>85-264Vac<br>AC to DC Converter<br>+<br>**----- End of picture text -----**<br>
**Figure 4.** Input Attenuation Circuit
## Digital Panel Voltmeters
**4. Floating Signal Source Measurements** : Floating signals can be measured using the circuits shown in Figures 5 and 6. Connecting pin 10 (ANALOG COMMON) or pin 3 (5V RETURN) to (–) INPUT LO (pin 12) provides the reference point for the meter’s input.
A "fl oating" input is a signal that has no galvanic connection to the meter's power supply. In the fi gures below, the 1.5V battery illustrates a true fl oating input.
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11 DMS-20PC-1<br>(+) IN HI 8<br>REF OUT<br>1.5V<br>CELL – (–) IN LO 12<br>7<br>REF IN<br>1 2 3 6<br>+5V SUP DISPLAY 5V DP1<br>ENABLE RET<br>85-264Vac<br>AC to DC Converter<br>+<br>**----- End of picture text -----**<br>
**Figure 5.** Floating Input Measurements
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11 DMS-20PC-1<br>(+) IN HI 8 REF OUT<br>10<br>1.5V ANA COMM<br>CELL<br>–<br>12<br>7<br>(–) IN LO REF IN<br>1 2 3 6<br>+5V SUP DISPLAY 5V DP1<br>ENABLE RET<br>85-264Vac<br>AC to DC Converter<br>+<br>**----- End of picture text -----**<br>
**Figure 6.** Floating Input Measurements (Alternate Confi guration)
**5. Process Control (4-to-20mA) Measurements** : In many common process-control applications, a 4-to-20mA current loop is used to transmit information. Because DMS-20PC meters have such high input impedance, a simple shunt resistor across the meter's input can be used to convert the loop current to a voltage. See Figure 7. The value of the shunt resistor is a function of the scaling requirements of the particular application and can be calculated using the following equation:
RShunt = R1 = VFsr /I Fsr
Where: VFsr = Full scale reading (in Volts)
I Fsr = Relative full scale current (in Amps)
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**MPM_DMS_20PC.F01** Page 4 of 6
## **- DMS 20PC Series**
## **APPLICATIONS**
## 3½ Digit, LED Display, Low-Cost, Subminiature Digital Panel Voltmeters
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Example: For a meter with a 2V full scale input (1.999 full scale The LM-2931 was chosen because it has the following on-chip<br>reading) and a desired display reading of "1000" (with an protection features: reverse polarity, short circuit and thermal<br>input of 20mA), VFsr = 1.000 Volts runaway. When using other, higher-power, DMS-20PC models<br>RShunt = 1.000V/(0.020 – 0.004)A with three-terminal regulators, be sure to consult the regula-<br>tor manufacturer's data sheet to ensure the regulator is being<br>RShunt= 1.000V/0.016A = 62.5 Ohms<br>utilized safely and correctly.<br>To calibrate the circuit of Figure 7, perform the following: 7. Digital Ammeter: Digital ammeters are fi nding ever-increasing<br>usage because analog-style ammeters (moving-vane types)<br>1. With 4mA applied, adjust the 50kΩ potentiometer (R2) to<br>now cost roughly the same as their digital counterparts. Addi-<br>display a reading of "000" (assuming that is the desired<br>tionally, analog ammeters are not nearly as rugged as modern<br>reading).<br>digital panel voltmeters. Figure 9 illustrates a typical ammeter<br>2. With 20mA applied, adjust the gain-adjust potentiometer<br>application. The circuit uses a ±200mV input meter — the<br>on the back of the meter to display a reading of "1000".<br>preferred range for most ammeters — to measure the voltage<br>For different full scale readings, alter the value of RShunt<br>developed across a 0.1Ω current shunt. The circuit shown<br>accordingly. represents a basic ammeter connection diagram. Click http://www.murata-ps.com/data/meters/dms-an6.pdfh r to<br>DMS-20PC-1 view a detailed application note describing digital dc ammeters.<br>11<br>(+) IN HI 8<br>REF OUT<br>10<br>ANA COMM<br>1 DMS-20PC-0<br>+5V SUP<br>12 8<br>4-20mA R1 (–) IN LO REF IN 7 + DISP EN 2 REF OUT<br>5Vdc<br>R2 +5V SUP 1 DISPLAY 2 5V RET 3 – 5V RET 3<br>– 50k ENABLE 6 REF IN 7<br>DP1 12 11<br>(–) IN LO (+) IN HI<br>85-264Vac 0.150V<br>1.5 Amp (Load Current)<br>AC to DC Converter 0.1W Load<br>RShunt (3.3 )W<br>Figure 7. 4-to-20mA Current Loop Operation<br>Figure 9. Basic DC Ammeter Circuit<br>6. Power Supply Monitoring: One of the most common digital<br>panel meter applications involves monitoring the output voltage 8. External Gain Adjustment : Connect REFERENCE OUT<br>of the system power supply — often this supply also powers the (pin 8) to REFERENCE IN (pin 7) for normal, factory calibrated,<br>meter itself. The low-power, red LED DMS-20PC-2-RL can be operation. Use the circuit shown in Figure 10 for applications<br>confi gured to allow power supply monitoring over the range of needing external gain adjustment. Calibration is performed<br>4.5-18Vdc. The circuit in Figure 8 uses a low-drop-out, three-ter- with a precise, near-full-scale, input voltage.<br>minal regulator (LM-2931Z-5, available from National Semicon-<br>11 DMS-20PC-1<br>ductor) to provide regulated 5V-power to the meter. OUT (+) IN HI<br>3 1<br>DMS-20PC-2-RL 12 CALIBRATORVOLTAGE 5V RET +5V IN<br>LM2931Z-5 12<br>IN OUT +5V SUP 12 11 (+) IN HI COM (–) IN LOANA 10 NC 8 REF 7 and ±200V modelsfor ±2V, ±20VConnections<br>+ 4.5 - 18Vdc GND 22µF + DISP EN 3 COMM 8.06k, 1% IN 2k 1 17.4k, 1%<br>– 10V 5V RET<br>5<br>DP2 Connectionsfor ±200mV<br>REF 7 8 REF (–) IN LO 12 732, 1% 200 1 24.3k, 1% models<br>IN OUT<br>1 = 10 to 20 Turns<br>Figure 10. External Gain Adjustment<br>Figure 8. 4.5-18V Power Supply Monitor<br>+<br>**----- End of picture text -----**<br>
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**MPM_DMS_20PC.F01** Page 5 of 6
## **- DMS 20PC Series**
## 3½ Digit, LED Display, Low-Cost, Subminiature
## **MECHANICAL SPECIFICATIONS**
## Digital Panel Voltmeters
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MECHANICAL DIMENSIONS: Inches (mm)<br>TOLERANCES: 2 PL DEC ±0.02 (±0.51) PIN #1<br>3 PL DEC ±0.010 (±0.254) IDENTIFIER<br>LEAD DIMENSIONS: 0.025 (0.635) x 0.025 (0.635) NOMINAL<br>RECOMMENDED PC BOARD FINISHED HOLE DIAMETER:<br>0.042 ±0.003 (1.067 ±0.076) CALIBRATION POTENTIOMETER HOLE LOCATION FRONT VIEW<br>PIN 1 0.170 +5V SUPPLY 1 12 (–) INPUT LO<br>(4.32) DISPLAY ENABLE 2 11 (+) INPUT HI<br>5V RETURN 3 10 ANALOG COMMON<br>DP3 4 9 DISPLAY TEST/HOLD<br>DP2 5 8 REFERENCE OUT<br>DP1 6 7 REFERENCE IN<br>0.150 DP1 DP2 DP3<br>(3.81)<br>0.125 (3.175) DIAMETER 0.88 1.38<br>(USE ONLY WHEN (22.4) (35.1)<br>PC BOARD MOUNTING) 0.80 1.30<br>(20.3) (33.0)<br>0.475 (12.07)<br>0.040<br>(1.02)<br>0.25 (6.4) TYP.<br>0.040<br>(1.02)TYP.(3.8)0.15 0.50 TYP.(2.5)0.10 (1.02)0.040 (27.9)1.10 TYP.(2.5)0.10<br>(12.7)<br>MADE IN USA DMS-20PC-X-XX<br>**----- End of picture text -----**<br>
## **BEZEL INSTALLATION AND RECOMMENDED DRILL AND PANEL CUTOUT**
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#2-56 INSERT 0.187<br>0.156 (3.96) DEEP (4.75)<br>FRONT VIEW (32.51)1.280<br>1.826 (46.38)<br>0.116 (2.95)<br>INTERNAL CORNER RADII:<br>0.032 (0.81) MAX.<br>(27.18)1.07 PANEL CUTOUT (21.29)0.838<br>0.093 (2.362) DIA 1.336 (33.93) 0.145 (3.68)<br>(4 REQUIRED) 1.626 (41.30)<br>**----- End of picture text -----**<br>
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PANEL<br>BEZEL<br>**----- End of picture text -----**<br>
## Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfi eld, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED
**This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/**
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifi cations are subject to change without notice. _**© 2015 Murata Power Solutions, Inc.**_
**www.murata-ps.com/support**
**MPM_DMS_20PC.F01** Page 6 of 6
Updated at June 9, 2026
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When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
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We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →