產品介紹
產品定位：Keysight 4294A 精密阻抗分析儀 40 Hz 至 110 MHz｜Precision Impedance Analyzer 屬於LCR、阻抗與被動元件量測設備，可用於電感、電容、電阻、阻抗特性、材料特性與元件品質驗證。
選型重點：實際測試頻率、精度與治具適用性需依機身與附件配置確認。評估 4294A 時，建議同步確認測試頻率、量測精度、治具、偏壓功能、校正件與附件完整性。
採購與技術確認：弘燁科技可依目前庫存、附件組合、校正需求與交期，協助比對同級替代型號並整理可交付方案。
品牌與分類：品牌為 Keysight / Agilent / HP，產品分類為 LCR／阻抗與元件測試。如需確認完整規格、附件、校正與交期，建議提供實際量測條件由 SMART 協助確認。
規格
規格重點
| 測試頻率 | 40 Hz 至 110 MHz |
|---|---|
| 基本精度 | ±0.08% |
| 測試訊號位準 | 5 mV 至 1 Vrms，或 200 uA 至 20 mArms |
| DC 偏壓 | 0 V 至 ±40 V，或 0 mA 至 ±100 mA |
| 產品狀態 | 原廠已停產；可同步評估 Keysight E4990A 替代方案 |
常見應用
- 電容、電感、電阻與 MLCC 等被動元件阻抗評估
- 高 Q、低 D 元件特性分析
- 材料與電子元件特性量測
- 研發驗證、品保檢測與產線測試支援
原廠英文說明
Product positioning and application: Keysight 4294A is a precision impedance analyzer for 40 Hz to 110 MHz impedance measurement. It is suitable for passive component evaluation, material characterization, circuit design verification, QA inspection and production test planning.
Selection notes: The model is obsolete, so quotation or replacement review should confirm the actual configuration, fixtures, accessories, calibration status, DC bias requirements and whether Keysight E4990A or another equivalent analyzer is the better option.
SMART can help compare available inventory, fixture combinations, calibration needs and delivery timing for engineering, R&D and purchasing teams.
Key Specifications
| Frequency range | 40 Hz to 110 MHz |
|---|---|
| Basic accuracy | +/- 0.08% |
| Test signal level | 5 mV to 1 Vrms, or 200 uA to 20 mArms |
| DC bias | 0 V to +/-40 V, or 0 mA to +/-100 mA |
| Product status | Obsolete; Keysight identifies E4990A as the replacement direction |
Typical Applications
- Capacitor, inductor, resistor and MLCC impedance evaluation
- High-Q and low-D component characterization
- Material and electronic component analysis
- R&D validation, QA inspection and production test support