The HP 8494/95/96/97 family of step attenuators offer fast, precise signal level control in three frequency ranges, dc to 4 GHz , dc to 18 GHz and dc to 26.5 GHz They feature exceptional repeatability and reliability in a wide range of frequency, attenuation and connector options. 

Precision plated leaf-spring contacts remove attenuator sections (miniature tantalum nitride thin-film T-pads on sapphire and alumina substrates) from the signal path. Unique process controls and material selection ensure unmatched life and contact repeatability. Miniature drive solenoids in the programmable models keep switching time, including settling, down to less than 20 milliseconds. Once switched, strong permanent magnets hold the solenoids (and attenuation value) in place. Current interrupts automatically disconnect solenoid current, simplifying driver circuit design and minimizing heat dissipation. Programming is done through a 12 -pin Viking socket or optional ribbon cables with DIP plugs. 

・Agilent / HP 8496H 為 Programmable Step Attenuator（可程式控制階梯式射頻衰減器）
・屬於 8494/95/96/97 高精度 Step Attenuator 系列
・提供快速、精準的 Signal Level Control
・適合整合於 Automatic Test Equipment（ATE）

・DC to 18 GHz
・系列版本涵蓋 DC–4 GHz / DC–18 GHz / DC–26.5 GHz
・適用於寬頻 RF 與微波量測應用

・0 – 110 dB
・10 dB Steps
・可程式控制（Programmable Switching）
・Switching Time < 20 ms（Including Settling）

・< 0.03 dB（DC – 18 GHz）
・< 0.05 dB（18 – 26.5 GHz 系列型號）
・After 5 Million Cycles per Section

✔ 確保低 Measurement Uncertainty
✔ 提供高信賴度於自動測試系統

・Precision Plated Leaf-Spring Contacts
・Miniature Tantalum Nitride Thin-Film T-Pads
・Sapphire & Alumina Substrates
・優異接觸穩定性與長壽命設計

・Permanent Magnets 固定衰減狀態
・Automatic Current Interrupt 設計降低發熱
・> 5 Million Cycles per Section

・12-Pin Viking Socket Programming
・Optional Ribbon Cable with DIP Plugs
・支援 HP 11713A / 87130A / 70611A Driver
・透過 HP-IB（Hewlett-Packard Interface Bus）整合自動化系統

・可與 1 dB Step + 10 dB Step Attenuator 串接擴展動態範圍
・支援 11716A/B/C Interconnect Kits

・AI 伺服器 / HPC 射頻模組自動功率控制
・5G Sub-6GHz / FR2 自動化功率校準
・6G 毫米波與高頻研究應用
・LTE / NB-IoT / IoT 通訊模組測試
・WiFi 6 / WiFi 6E / WiFi 7 RF 驗證
・Signal Generator 輸出程控功率調整
・Spectrum Analyzer / VNA 前端保護
・ATE / 產線 EOL 測試系統整合

Agilent 8496H datasheet: 

The HP 8494/95/96/97 family of step attenuators offer fast, precise signal level control in three frequency ranges, dc to 4 GHz , dc to 18 GHz and dc to 26.5 GHz They feature exceptional repeatability and reliability in a wide range of frequency, attenuation and connector options. 

Precision plated leaf-spring contacts remove attenuator sections (miniature tantalum nitride thin-film T-pads on sapphire and alumina substrates) from the signal path. Unique process controls and material selection ensure unmatched life and contact repeatability. Miniature drive solenoids in the programmable models keep switching time, including settling, down to less than 20 milliseconds. Once switched, strong permanent magnets hold the solenoids (and attenuation value) in place. Current interrupts automatically disconnect solenoid current, simplifying driver circuit design and minimizing heat dissipation. Programming is done through a 12 -pin Viking socket or optional ribbon cables with DIP plugs. 

• Datasheet PD1534239103400