MMBF5434

$0.43

Description：JFET N-CH 25V SOT23-3
Series：-

SKU:b6447ee09936 Category: JFETs Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：JFET N-CH 25V SOT23-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
FET Type：N-Channel
Voltage - Breakdown (V(BR)GSS)：25 V
Drain to Source Voltage (Vdss)：-
Current - Drain (Idss) @ Vds (Vgs=0)：30 mA @ 15 V
Current Drain (Id) - Max：-
Voltage - Cutoff (VGS off) @ Id：1 V @ 3 nA
Input Capacitance (Ciss) (Max) @ Vds：30pF @ 10V (VGS)
Resistance - RDS(On)：-
Power - Max：350 mW
Operating Temperature：-55°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

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MMBF5434

Overview

The MMBF5434 is an N-Channel Junction Field Effect Transistor (JFET) designed for digital switching applications requiring low on-resistance. It operates within a Drain-Gate voltage of 25 V and Gate-Source voltage of -25 V, with a junction temperature range of -55°C to 150°C. The device features a maximum drain-source on-resistance of 10 Ω at 10 mA and a zero-gate voltage drain current of 30 mA. Total power dissipation is rated at 350 mW, with a thermal resistance of 556 °C/W. Input capacitance is 30 pF and reverse transfer capacitance is 15 pF.

Feature Summary

Designed specifically for digital switching applications where very low on-resistance is mandatory
Sourced from Process 58 manufacturing technology

Applications

Digital switching circuits
Low on-resistance signal routing

Procurement Notes

Verify the exact ordering suffix against the official ON Semiconductor website, as Fairchild part numbers may have been updated following integration. Confirm package type and packing method match project requirements. Ensure application conditions do not exceed absolute maximum ratings. Validate typical parameters for specific use cases.

Selection Notes

Select this component when a JFET switch with minimal on-resistance is required for digital logic interfacing. Consider the SuperSOT-3 package constraints for PCB layout. Evaluate thermal management needs given the high junction-to-ambient resistance. Verify compatibility with system voltage levels and current demands.

Part Context

The MMBF5434 belongs to the N-Channel Switch category within ON Semiconductor's discrete semiconductor portfolio. Originally manufactured by Fairchild Semiconductor, it is now part of the ON Semiconductor lineup following corporate integration. The device utilizes SuperSOT-3 packaging for compact surface-mount implementations.