Equivalent & Substitute Parts for 2SCR544PFRAT100

Part Overview

The Rohm Semiconductor 2SCR544PFRAT100 is an NPN bipolar junction transistor (BJT), specifically designed for surface mount applications. It is characterized by an 80 V collector-emitter breakdown voltage, 2.5 A maximum collector current, 500 mW maximum power dissipation, and 280 MHz transition frequency. The device is automotive grade and AEC-Q101 qualified. Identifying equivalent or substitute parts is necessary for inventory assurance, supply chain flexibility, and to maintain continuity in manufacturing when facing allocation or packaging constraints.

Key Parameters

Parameter	Value
Manufacturer	Rohm Semiconductor
Part Number	2SCR544PFRAT100
Category	Transistors, Bipolar (BJT)
Transistor Type	NPN
Current - Collector (Ic) (Max)	2.5 A
Voltage - Collector Emitter Breakdown (Max)	80 V
Vce Saturation (Max) @ Ib, Ic	300mV @ 50mA, 1A
Current - Collector Cutoff (Max)	1µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 100mA, 3V
Power - Max	500 mW
Frequency - Transition	280MHz
Operating Temperature	150°C (TJ)
Qualification	AEC-Q101
Mounting Type	Surface Mount
Package / Case	TO-243AA
Supplier Device Package	MPT3
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitution for the 2SCR544PFRAT100 is governed strictly by the following parameters: transistor type (NPN), maximum collector current, maximum collector-emitter breakdown voltage, maximum Vce saturation, collector cutoff current, minimum DC current gain, maximum power rating, transition frequency, operating temperature, mounting type, package, qualification, RoHS/REACH compliance, and moisture sensitivity level. Only parts matching or closely aligned with these values are considered suitable substitutes within the same product category.

Parameter Comparison

Parameter	Main Part: 2SCR544PFRAT100	Parametric Equivalent: 2SCR544P5T100	Similar Part: 2SCR544PHZGT100
Manufacturer	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor
Transistor Type	NPN	NPN	NPN
Current - Collector (Ic) (Max)	2.5 A	2.5 A	2 A
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	30 V
Vce Saturation (Max) @ Ib, Ic	300mV @ 50mA, 1A	300mV @ 50mA, 1A	300mV @ 50mA, 1A
Current - Collector Cutoff (Max)	1µA (ICBO)	1µA (ICBO)	1µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 100mA, 3V	120 @ 100mA, 3V	120 @ 100mA, 3V
Power - Max	500 mW	500 mW	500 mW
Frequency - Transition	280MHz	280MHz	320MHz
Operating Temperature	150°C (TJ)	150°C (TJ)	150°C (TJ)
Qualification	AEC-Q101	-	-
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-243AA	TO-243AA	TO-243AA
Supplier Device Package	MPT3	MPT3	SOT-89
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts are active status, ROHS3 compliant, and REACH unaffected, with MSL 1 (unlimited), allowing for drop-in replacement in assembly from a compliance and inventory perspective. Only the 2SCR544PFRAT100 explicitly states AEC-Q101 automotive qualification; this should be considered if automotive certification is required.

Frequently Asked Questions (FAQ)

Q1: Which parameters are essential when selecting a substitute for the 2SCR544PFRAT100?
A1: Critical parameters include transistor type (NPN), maximum collector current, maximum collector-emitter breakdown voltage, Vce saturation, collector cutoff current, DC current gain, maximum power, transition frequency, mounting type, package/case, RoHS and REACH status, and moisture sensitivity.

Q2: How important is the voltage rating when evaluating substitutes in the Transistors, Bipolar (BJT) category?
A2: The maximum collector-emitter breakdown voltage must meet or exceed the application requirement; substituting a transistor with a lower voltage capability is not suitable if the application voltage exceeds the substitute's specification.

Q3: Do package and mounting differences affect substitution?
A3: Yes. The mounting type and physical package must match or be compatible with the application PCB footprint to ensure mechanical and electrical fit.

Q4: Are all listed equivalents AEC-Q101 qualified?
A4: Only the 2SCR544PFRAT100 explicitly indicates AEC-Q101 qualification. If automotive qualification is required, confirm the substitute’s grade before selection.

Q5: Is compliance with RoHS and REACH uniform across substitutes?
A5: All listed substitutes state ROHS3 compliant and REACH unaffected status, supporting global regulatory conformance for electronic assemblies.

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