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Product Detailed Parameters
- Description：JFET N-CH 50MA 3MCPH
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：-
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：25 mA @ 5 V
- Current Drain (Id) - Max：50 mA
- Voltage - Cutoff (VGS off) @ Id：600 mV @ 10 µA
- Input Capacitance (Ciss) (Max) @ Vds：4.9pF @ 5V
- Resistance - RDS(On)：-
- Power - Max：300 mW
- Operating Temperature：150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-70, SOT-323
- Supplier Device Package：3-MCPH
- Grade：-
- Qualification：-
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Overview
The MCH3914-8-TL-H is an N-channel Junction Field-Effect Transistor (JFET) manufactured by onsemi. It features a maximum drain-source voltage of 15V and supports a continuous drain current ranging from 16mA to 50mA. The device exhibits a forward transfer admittance of 29mS, ensuring effective signal amplification capabilities. Designed for surface-mount applications, it utilizes the MCPH3 package configuration. The component operates with a power dissipation rating of 300mW and is engineered for high-frequency amplifier and analog switch implementations.
Feature Summary
- N-channel JFET construction optimized for low-noise performance
- High-frequency operation suitable for RF signal processing
- Surface-mount MCPH3 package for compact PCB integration
Applications
- High-frequency low-noise amplifiers
- Analog switching circuits
- RF signal conditioning stages
Procurement Notes
Verify the specific ordering suffix against the official onsemi datasheet to confirm exact electrical tolerances and tape-and-reel specifications. Ensure the MCPH3 footprint matches the target PCB layout dimensions. Cross-reference the pinout diagram with the schematic to prevent orientation errors during assembly. Confirm that the operating temperature range aligns with the system's thermal requirements.
Selection Notes
Select this component when designing circuits requiring N-channel JFET characteristics with a 15V breakdown voltage. Consider the 29mS transconductance for gain requirements in amplifier stages. Evaluate the MCPH3 package size constraints relative to available board space. Assess the 300mW power dissipation limit against expected thermal loads in the final application environment.
Part Context
This part belongs to onsemi's discrete semiconductor portfolio, specifically within the JFET category. It serves as a passive control element in analog signal paths. The MCPH3 package provides a small outline transistor form factor suitable for modern electronics manufacturing. It complements other onsemi active components in mixed-signal design architectures.
Replacement Considerations
Consult the official onsemi substitution guide for verified equivalent parts. Direct replacements must match the N-channel JFET type, 15V rating, and MCPH3 package. Generic substitutes may not guarantee identical noise figures or transconductance curves.
