HD31257 RF Amplifier
Module
HD31257
| FREQUENCY RANGE800–3,000 MHz | OUTPUT POWER2 W minimum Psat |
| GAIN33 dB minimum | SUPPLY VOLTAGE12 – 13 VDC |
| CONFIGURATIONModule | CATEGORYLow Frequency Module |
HD31257 electrical specifications
Source: HD31257 V1.5.pdf. Refer to the complete datasheet for all test conditions, optional ratings and protection limits.
| Parameter | Specification | Conditions / notes |
|---|---|---|
| Operating Frequency Range | 800 – 3000 MHz | |
| Power Output @ Psat | 2 W minimum | CW |
| Output Power @ P1 dB | 1.5 W minimum | CW |
| Power Gain | 33 dB minimum | 0 dBm or less for rated Pout |
| Power Gain Flatness | 2.0 dB p-p maximum | Constant input power |
| Input Return Loss | -10 dB maximum | Relative to 50 Ohm |
| 2-Tone Intermodulation (IMD) | <-30 dBc typical | 23 dBm/Tone, A = 1 MHz |
| Spurious | -60 dBc maximum | Non-harmonics |
| Operating Voltage | 12 – 13 VDC | |
| Current Consumption | 1 A maximum | At rated Pout |
HD31257 control and monitoring
| Pin | Function | Description |
|---|---|---|
| 2 | GND | Ground |
Confirm connector orientation and optional functions against the complete model-specific documentation before wiring.
Operating and storage conditions
| Parameter | Specification | Conditions / notes |
|---|---|---|
| Operating Case Temperature | -20 to +75 °C | |
| Storage Temperature | -40 to +85 °C | |
| Relative Humidity | up to 95 % | Non-condensing |
| Altitude | 3000 meters |
Mechanical specifications and cooling
| Parameter | Specification | Conditions / notes |
|---|---|---|
| Dimensions | 80 × 50 × 16.8 mm | Excluding connectors |
| RF Connectors In/Out | SMA female | |
| DC Power | Feed Thru | |
| Cooling | External heatsink |
Use the original outline drawing for mounting-hole positions, connector clearances and ordered options.
HD31257 documentation
Download HD31257 V1.5.pdf for the complete specifications, test conditions, drawings and available options.
About HD31257
HD31257 is listed for 800–3,000 MHz operation.
Output: 2 W minimum Psat. Gain: 33 dB minimum. P1dB: 1.5 W minimum. Preserve the rating definitions and conditions in the complete datasheet.
Supply: 12 – 13 VDC. Cooling: External heatsink.
See the model-specific interface table above. Optional functions must be confirmed for the ordered unit.
Dimensions: 80 × 50 × 16.8 mm. Review the mechanical table and original outline drawing before planning mounting and connector clearances.
Protection ratings are subject to the datasheet conditions and time limits. They do not imply unlimited operation under overload or mismatch.