Description

This Bipolar Junction Transistor (BJT) is designed to meet the stringent requirements of Automotive Applications.

Feature(s)

BVCEO > 100V
IC = 1A high Continuous Current
Low saturation voltage VCE(sat) < 300mV @ 250mA
Totally Lead-Free & Fully RoHS compliant
Halogen- and Antimony-Free. “Green” Device
The FCX493Q is suitable for automotive applications
requiring specific change control; this part is AEC-Q101
qualified, PPAP capable, and manufactured in IATF16949
certified facilities.
https://www.diodes.com/quality/product-definitions/

Application(s)

Load management functions
Solenoid, relay and actuator drivers
DC – DC modules

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Automotive
Category	Medium Power Transistor
Polarity	NPN
RCE(sat) (mΩ)	N/A
VCEO, VCES (V)	100
IC (A)	1
ICM (A)	2
PD (W)	1
hFE (Min)	100
hFE (@ IC) (A)	0.25
h_FE(Min 2)	60
hFE (@ IC2) (A)	0.5
VCE(sat) Max (mV)	300
V_CE(SAT) (@ IC/IB) (A/mA)	0.5/0.5
VCE(sat) (Max.2) (mV)	600
VCE(sat) (@ IC/IB2) (A/mA)	1/100
fT (MHz)	150

Technical Documents

SPICE Model

FCX493Q.spice.txt

Recommended Soldering Techniques

TN1.pdf

RoHS CofC

RoHSFile

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products

FCX493Q