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canonical_url: "https://www.artisantg.com/59264-3/HP-5087-7781"
json_url: "https://www.artisantg.com/59264-3/HP-5087-7781.json"
generated_at: "2026-11-06T23:45:40.733Z"
last_updated: "2026-10-14T13:00:51.160-05:00"
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# Keysight / Agilent / HP 5087-7781 Bias Tee

_Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._

## Summary

- Manufacturer: HP
- Model: 5087-7781
- Condition: Used and in Excellent Condition
- Price: $325.00 USD
- Availability: In stock, 1 available
- Warranty: 1-Year Warranty with 30-Day Return Guarantee
- ITAR restricted: No
- Shipping weight: 1 lb, estimated
- Shipping dimensions: 8X8X3 in, estimated

## Categories

- Test Equipment > Electrical Test > Bias Tees (primary)

## Details

Part Number: 5087-7782

## Function

High-frequency bias tee enabling simultaneous DC bias injection and RF signal transmission through a single coaxial path. Provides DC blocking on RF path while maintaining low insertion loss from 10 MHz to 26.5 GHz. Features SMA connectors for RF input/output and isolated DC bias port. Internally combines/separates DC and RF signals using high-Q reactive components. Supports up to 30V DC bias voltage and 500mA current. Used for biasing active devices like amplifiers, mixers, and detectors in test setups while measuring S-parameters, noise figure, or conducting on-wafer probing.

## Images

- <https://www.artisantg.com/itemimages/keysight_agilent_hp_5087_7781_view1_202641010300.jpg>
- <https://www.artisantg.com/itemimages/keysight_agilent_hp_5087_7781_view2_202641010300.jpg>
- <https://www.artisantg.com/itemimages/keysight_agilent_hp_5087_7781_view3_202641010300.jpg>
- <https://www.artisantg.com/itemimages/keysight_agilent_hp_5087_7781_view4_202641010300.jpg>
