2SCR554PT100 Equivalent & Substitute Parts Reference

Part Overview

The 2SCR554PT100 by Rohm Semiconductor is an NPN bipolar junction transistor (BJT) intended for surface-mount applications requiring a maximum collector-emitter voltage of 80 V and collector current up to 1.5 A. It is supplied in an MPT3 (TO-243AA) package. The device is active, RoHS3 compliant, and REACH unaffected, with a maximum power dissipation of 2 W and transition frequency of 300 MHz. When supply chain, inventory, or design requirements necessitate identification of equivalent models, direct substitute parts must be evaluated strictly according to allowed electrical and mechanical parameters.

Key Parameters

Parameter	Value
Manufacturer	Rohm Semiconductor
Part Number	2SCR554PT100
Transistor Type	NPN
Voltage - Collector Emitter Breakdown (Max)	80 V
Current - Collector (Ic) (Max)	1.5 A
Vce Saturation (Max) @ Ib, Ic	300mV @ 25mA, 500mA
Current - Collector Cutoff (Max) (ICBO)	1µA
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 100mA, 3V
Power - Max	2 W
Frequency - Transition	300MHz
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-243AA (MPT3)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitution within the category of Transistors, Bipolar (BJT), is strictly determined by matching electrical and mechanical parameters. Core criteria for direct substitution include:

Transistor type (NPN)
Maximum collector-emitter voltage (≥80 V)
Maximum collector current (≥1.5 A desired for exact match)
Power dissipation (comparable or greater)
DC current gain (hFE) at specified test conditions
Frequency characteristics (transition frequency)
Package and mounting type (TO-243AA/MPT3, surface mount)
Maximum operating temperature
Compliance status (RoHS3, REACH)
Product must be active

Derived substitute parts are selected exclusively on the basis of these parameters.

Parameter Comparison

Parameter	2SCR554PT100	2SCR514PT100	2SCR544PT100	2SCR554P5T100
Transistor Type	NPN	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	80 V	80 V
Current - Collector (Ic) (Max)	1.5 A	0.7 A	2.5 A	1.5 A
Vce Saturation (Max) @ Ib, Ic	300mV @ 25mA, 500mA	300mV @ 15mA, 300mA	300mV @ 50mA, 1A	300mV @ 25mA, 500mA
Current - Collector Cutoff (Max) (ICBO)	1µA	1µA	1µA	1µA
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 100mA, 3V	120 @ 100mA, 3V	120 @ 100mA, 3V	120 @ 100mA, 3V
Power - Max	2 W	2 W	2 W	500 mW
Frequency - Transition	300MHz	320MHz	280MHz	300MHz
Operating Temperature (TJ)	150°C	150°C	150°C	150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-243AA (MPT3)	TO-243AA (MPT3)	TO-243AA (MPT3)	TO-243AA (MPT3)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed (2SCR514PT100, 2SCR544PT100, 2SCR554P5T100) have an active product status and are compliant with ROHS3 and REACH. Each substitute model is supplied in the TO-243AA (MPT3) surface-mount package, matching the compliance, form factor, and environmental characteristics of the primary component.

Frequently Asked Questions (FAQ)

Q1: What are the most critical parameters for substituting the 2SCR554PT100 in a design?
A1: The critical parameters are transistor type (NPN), maximum collector-emitter voltage (80 V), maximum collector current, power dissipation, DC current gain (hFE), transition frequency, operating temperature, and package (TO-243AA, MPT3).

Q2: Can all listed substitutes be mounted on the same PCB footprint?
A2: Yes, all substitute parts use the same package/case (TO-243AA, MPT3), so they are mechanically compatible for surface mount applications.

Q3: Do the substitutes provide the same compliance and environmental certifications as 2SCR554PT100?
A3: Yes, all listed substitutes are ROHS3 compliant and REACH unaffected.

Q4: Is the substitute selection valid for both new designs and maintenance of existing equipment?
A4: All substitutes have active status, making them suitable for both new product development and continuity in existing assemblies when direct parameter alignment is maintained.

Q5: Is there any impact on electrical performance when choosing among these substitutes?
A5: All substitutes meet the core electrical performance criteria defined by the allowed parameters; see the parameter comparison table for specific values governing selection.

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