1617168-8 .

CII Low Signal Relays 

## **Double Pole, Electrically Held, 1 Amp and Less** (Continued) 

## **MST** 

## **MST** 

**Sensitive TO-5 Diode Suppressed/ Transistor Driven High Performance Relay Qualified to MIL-R-28776/3** 

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Terminal View<br>**----- End of picture text -----**<br>


## **Product Facts** 

- n **Transistor driver & suppression diode** 

- n **Hermetically sealed** 

- n **High shock & vibration ratings** 

- n **Spreader pads** 

- n **Excellent RF switching** 

## **Electrical Characteristics** 

**Contact Arrangement** — 2 Form C (DPDT) 

**Contact Material** — Stationary — 

Gold/platinum/palladium/silver alloy (gold plated) Moveable — 

Gold/platinum/palladium/silver alloy (gold plated) 

**Contact Resistance** — 

## **Contact Ratings** 

|**Contact Ratings**|||
|---|---|---|
|**Contact**<br>**Load**|**Type**|**Operations**<br>**Min.**|
|1.0 A @ 28 Vdc|Resistive|100,000|
|250 mA @ 115 Vac,60 Hz & 400 Hz|Resistive(case notgrounded)|100,000|
|100 mA @ 115 Vac,60 Hz & 400 Hz|Resistive|100,000|
|0.2 A @ 28 Vdc<br>0.1 A @ 28 Vdc<br>30µA @ 50 mVdc<br>0.1 A @ 28 Vdc|Inductive(0.32 Henry)<br>Lamp<br>Low Level<br>Intermediate Current|100,000<br>100,000<br>1,000,000<br>50,000|



Before Life — 100 milliohms max. (measured @ 10 mA @ 6 Vdc) After Life — 200 milliohms max. (measured @ 1 A @ 28 Vdc) 

**Mechanical Life Expectancy** — 1 million operations 

**Coil Voltage** — 5 to 48 Vdc **Coil Power** — 565 mW max. @ 25°C **Duty Cycle** — Continuous **Pick-up Voltage** — Approximately 50% of nominal coil voltage 

**Pick-up Sensitivity** — 60 mW max. @ 25°C 

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1-24 Catalog 5-1773450-5 Revised 3-13 

USA: +1 800 522 6752 Asia Pacific: +86 0 400 820 6015 UK: +44 800 267 666 

Dimensions are shown for Dimensions are in millimeters reference purposes only. unless otherwise specified. Specifications subject to change. 

For additional support numbers please visit www.te.com 

www.te.com 

CII Low Signal Relays 

**1** 

## **Double Pole, Electrically Held, 1 Amp and Less** (Continued) 

## **MST** (Continued) 

## **Operating Characteristics** 

**Timing** — 

Operate Time — 4.0 ms max. Release Time — 7.5 ms max. **Contact Bounce** — 1.5 ms max 

**Dielectric Withstanding Voltage** — Between Open Contacts — 500 Vrms 60 Hz 

Between Adjacent Contacts — 500 Vrms 60 Hz Between Contacts & Coil — 500 Vrms 60 Hz 

**Insulation Resistance** — 10,000 megohms min. @ 500 Vdc 1,000 megohms @ 500 Vdc (coil to case @ +125°C) 

## **Environmental Characteristics** 

**Temperature Range** — -65°C to +125°C 

**Weight** — 

0.12 oz. (3.40 grms) 0.13 oz. (3.45 grms) with spreader pad attached 

**Vibration Resistance** — 30 G’s, 10 to 3,000 Hz **Shock Resistance** — 75 G’s, 6 ±1 ms max. **QPL Approval** — MIL-R-28776/3 (JMST) 

## **Semiconductor Characteristics** 

**Diode** — 

100 Vdc peak inverse voltage (PIV) 1.0 Vdc max. transient voltage 

**Transistor** — 

0.3 Vdc min. base turn off voltage; 6.0 Vdc min. emitter-base breakdown voltage (BVEBO) @ 25°C; 80.0 Vdc min. collector-base breakdown voltage (BVCBO) @ 25°C & IC=100 µA 

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## **Coil Data** 

|**Coil Data**|**Coil Data**||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Nom.**<br>**Coil**<br>**Voltage**<br>**(Vdc)**|**Coil**<br>**Resistance**<br>**in Ohms**<br>**±10% @ 25°C**<br>(Note 1)|**Coil Circuit**<br>**Current**<br>**mA (Max.)**<br>(Note 1&2)|**Coil Circuit**<br>**Current**<br>**mA (Min.)**<br>(Note 1&2)|**Pickup**<br>**Voltage**<br>**Vdc (Max.)**<br>**@ 25°C**<br>(Note 2)|**Base Turn**<br>**On Current**<br>**mA (Max.)**<br>**@ 25°C**|**Pickup**<br>**Voltage**<br>**Vdc (Max.)**<br>**@ 125°C**<br>(Note 2)|**Base Turn**<br>**On Current**<br>**mA (Max.)**<br>**@ 125°C**|**Drop-Out**<br>**Voltage**<br>**Vdc (Min.)**<br>**@ 25°C**<br>(Note 2)|**Drop-Out**<br>**Voltage**<br>**Vdc (Min.)**<br>**@ -65°C**<br>(Note 2)|**Nom. Coil**<br>**Power**<br>**(mW)**<br>**@ 25°C**|**Max.**<br>**Coil**<br>**Voltage**|**Coil**<br>**Desig.**|
|MST|||||||||||||
|5.0|100|59.3|43.5|2.8|0.37|3.6|1.50|0.22|0.14|250|7.0|5|
|6.0|200|35.4|26.4|3.8|0.25|4.8|1.00|0.28|0.18|180|10.0|6|
|9.0|400|25.8|19.7|5.2|0.18|7.8|0.75|0.54|0.35|203|15.0|9|
|12.0|850|16.7|12.2|7.4|0.12|11.0|0.47|0.63|0.41|169|20.0|12|
|18.0|1,600|13.1|9.7|10.0|0.09|14.5|0.38|0.91|0.59|203|30.0|18|
|26.5|3,300|9.5|6.9|14.2|0.06|19.0|0.24|1.37|0.89|213|40.0|26|
|36.0|6,500|6.4|4.8|20.0|0.034|27.0|0.17|1.80|1.25|199|57.0|36|
|48.0|11,000|5.1|3.7|25.8|0.026|36.0|0.13|2.40|1.60|209|75.0|48|



**Notes:** 1. Coil resistance not directly measurable. Coil current should be within limits shown when tested at nominal voltage at 25°C for 5 seconds max. 2. Set base current at 3 mA to 15 mA during measurements. 

## **Ordering Instructions** 

Catalog-selected Relays: The catalog number is derived by choosing the proper CODE for each of the relay characteristics in the order in which the codes are listed. 

|**Specifying a Part Number Example:**|**Specifying a Part Number Example:**|**Type**|**Terminal**|**Diodes**|**Ground Pins**|**Coils**|**Spreader/Mounting Pads**|
|---|---|---|---|---|---|---|---|
|||MS|C|T|G|-26|S|



***** The part number example shown on this page is for catalog items. For a list of specific QPL part numbers, please see the index in Section 15. 

1-25 For additional support numbers please visit www.te.com 

Catalog 5-1773450-5 Dimensions are shown for Revised 3-13 reference purposes only. Specifications subject www.te.com to change. 

USA: +1 800 522 6752 Asia Pacific: +86 0 400 820 6015 UK: +44 800 267 666 

Dimensions are in millimeters unless otherwise specified.