# Oscillator, 1MHz, CMOS, SMD, 2.5mm x 2mm, 3.3 V, ISM95 Series

![Product image](https://novapart.co/image/farnell:4327418RL/)

**URL**: https://novapart.co/products/ISM95-3251AH-1.000MHZ/oscillator-1mhz-cmos-smd-25mm-x-2mm-33-v-ism95
**SKU**: ISM95-3251AH-1.000MHZ
**Manufacturer**: ABRACON
**Category**: Crystals & Oscillators || Oscillators || Standard Oscillators
**Price**: €0.6870
**Stock**: 1000+
**Lead Time**: 106 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Frequency Nom | 1MHz |
| Product Range | ISM95 Series |
| Supply Voltage Nom | 3.3V |
| Frequency Stability + / - | 25ppm |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
| Oscillator Case / Package | SMD, 2.5mm x 2mm |
| Oscillator Output Compatibility | CMOS |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4327418RL/)

## **ISM95 Series** 

**Product Feature: Applications:** Fibre Channel Low Jitter, Non-PLL Based Output Server & Storage CMOS Compatible Logic Levels Sonet/SDH Compatible with Leadfree Processing 802.11/Wifi T1/E1, T3/E3 System Clock 

|Low Jitter, Non-PLL Based Output<br>CMOS Compatible Logic Levels<br>Compatible with Leadfree Processing|Server & Storage<br>Sonet/SDH<br>802.11/Wifi<br>T1/E1, T3/E3<br>System Clock|
|---|---|
|**Frequency Range**|1.000 MHz to 156.250 MHz|
|**Frequency Stability**<br>_(Inclusive of Calibration Tolerance at 25°C,_<br>_Frequency Stability over Operating_<br>_Temperature Range, Supply Voltage_<br>_Change, Output Load Change, and First_<br>_Year Aging at 25°C)_|±10ppm Maximum<br>±15ppm Maximum<br>±20ppm Maximum<br>±25ppm Maximum<br>±50ppm Maximum<br>±100ppm Maximum|
|**Operating Temperature Range**|0°C to +70°C,<br>-10°C to +60°C,<br>-10°C to +70°C,<br>-20°C to +70°C,<br>-30°C to +75°C,<br>or -40°C to +85°C|
|**Supply Voltage (Vdd)**_(±5%)_|1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 1.62V - 3.63V|
|**Input Current**|20mA Maximum|
|**Output Logic Type**|CMOS|
|**Output Drive Capability**|15pF Maximum<br>30pF Maximum|
|**Aging**|±3ppm/year Maximum|
|**Duty Cycle**<br>_(Measured at 50% of waveform)_|50 ±5(%) or 50 ±10(%)|
|**Rise / Fall Time**<br>_(Measured from 20% to 80% of waveform)_|6nSec Maximum|
|**Output Voltage Logic High **|90% of Vdd Minimum|
|**Output Voltage Logic Low**|10% of Vdd Maximum|
|**Pin 1 Connection**|Tri-State (High Impedance)|
|**Input Voltage Logic High**|70% of Vdd Minimum or No Connect to Enable<br>Output|
|**Input Voltage Logic Low**|30% of Vdd Maximum to Disable Output (High<br>Impedance)|
|**Standby Current**<br>_(Disabled Output, High Impedance)_|10µA Maximum|
|**Startup Time**|10mSec Maximum|
|**RMS Phase Jitter**<br>_(12kHz to 20MHz offset frequency)_|1pSec Maximum|
|**Period Jitter (RMS)**<br>_(20k adjacent periods)_|5pSec Maximum|
|**Period Jitter (pk-pk)**<br>_(100k adjacent periods)_|50pSec Maximum|



NOTES: 

- ●All minimum and maximum limits are specified over temperature and rated operating voltage with 

- 15pF output unless otherwise stated. 

- ●A 0.1µF bypass capacitor is recommended between Vdd (pad 4) and GND (pad 2) to minimize power supply noise. 

Revised C: 8/16/18 

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## **ISM95 Series** 

## **Absolute Maximum Limits:** 

|**Storage Temperature Range**|-55°C to+125°C|
|---|---|
|**Supply Voltage Range**|-0.3Vdc to Vdd+0.3Vdc|
|**Electrostatic Discharge**|2000V Maximum|
|**Solder Temperature**|260°C Maximum|
|**Junction Temperature**<br>150°C Maximum|150°C Maximum|



## **Environmental Specifications:** 

|**Mechanical Shock**|MIL-STD-202, Method 213|
|---|---|
|**Mechanical Vibration**|MIL-STD-202, Method 204|
|**Resistance to Soldering Heat**|MIL-STD-202,Method 210|
|**Solderability**|J-STD-002|
|**Gross Leak**|MIL-STD-883,Method 1014|
|**Fine Leak**|MIL-STD-883, Method 1014|
|**Moisture Sensitivity Level**|MSL 1 (+260°C)|



## **Test Circuit: Enable/Disable Option** 

**Waveform: Enable/Disable Option** 

Revised C: 8/16/18 

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## **ISM95 Series** 

## **Pb Free Solder Reflow Profile:** 

Units are backward compatible with 240C reflow processes 

|Tsmax toTL(Ramp-upRate)|3ºC / secondmax|
|---|---|
|Preheat<br>Temperature min (Ts min)<br>Temperature typ (Ts typ)<br>Temperature max (Ts max)<br>Time (Ts)|150ºC<br>175ºC<br>200ºC<br>60to180 seconds|
|Ramp-upTate (TLtoTp|3ºC / secondmax|
|Time Maintained Above<br>Temperature (TL)<br>Time(TL)|217ºC<br>60 to 150 seconds|
|Peak Temperature (Tp)|260ºCmax for 10 seconds|
|Time within 5ºC to Peak<br>Temperature(Tp)|20 to 40 seconds|
|Ramp-down Rate|6ºC / secondmax|
|Tune 25ºC to Peak Temperature|8 minutes max|



## **Package Information:** 

Termination = e4 (Au over Ni over W base metallization). Terminal Plating Thickness: Gold (0.3µm to 1.0µm), Nickel (1.27µm to 8.89µm) 

## **Tape and Reel Information:** 

|**QTY PER REEL**|**3000**|
|---|---|
|**PITCH **|4.00|
|**TAPE WIDTH**|8.00|
|**REEL DIA**|180|



## **Part Number Guide** 

|**Package**|**Input**<br>**Voltage**|**Operating**<br>**Temperature**|**Symmetry**<br>**(Duty Cycle)**|**Output Drive**<br>**Capability**|**Stability**<br>**(in ppm)**|**Enable /**<br>**Disable**|**Freaquency**|
|---|---|---|---|---|---|---|---|
|ISM95 -|3 = 3.3 V|1 =0° Cto+70° C|5 = 45 / 55 Max.|1 = 15pF|A =±25|H = Enable|-20.000 MHz|
||7 = 3.0 V|8 = -10°C to +60°C|6 = 40 / 60 Max.|6 = 30pF|B =±50|O = N/C||
||2 = 2.7 V|6 = -10°C to +70°C|||C =±100|||
||6 = 2.5 V|3= -20° Cto+70° C|||D =±15|||
||1 = 1.8 V|4 = -30°C to +75°C|||E =±10|||
||8 = 1.62V – 3.63V|2 = -40°C to +85°C|||F =±20|||



Revised C: 8/16/18 

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## Links

- [View this product on Novapart](https://novapart.co/products/ISM95-3251AH-1.000MHZ/oscillator-1mhz-cmos-smd-25mm-x-2mm-33-v-ism95)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/abracon/ism95-3251ah-1-000mhz/osc-1mhz-cmos-smd-2-5mm-x-2mm/dp/4327418RL)
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