Equivalent & Substitute Parts Reference: 2SCR543DTL

Part Overview

The Rohm Semiconductor 2SCR543DTL is an NPN Bipolar Junction Transistor (BJT) designed for power switching and amplification in surface mount applications. The device features a maximum collector current of 4 A, collector-emitter breakdown voltage of 50 V, and a transition frequency of 300 MHz. The product is currently listed as active with ROHS3 compliance and unlimited moisture sensitivity (MSL 1). In many engineering contexts, identifying equivalent or substitute parts is necessary to address supply chain constraints, inventory continuity, or compatibility requirements within the same product category.

Key Parameters

Manufacturer Part Number	Transistor Type	Voltage - Collector Emitter Breakdown (Max)	Current - Collector (Ic) (Max)	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	DC Current Gain (hFE) (Min) @ Ic, Vce	Power - Max	Frequency - Transition	Operating Temperature	Mounting Type	Package / Case	RoHS Status	Product Status
2SCR543DTL	NPN	50 V	4 A	350mV @ 100mA, 2A	1µA (ICBO)	180 @ 100mA, 3V	10 W	300MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Active

Substitute Part Grouping Explanation

Substitute BJTs are identified strictly by matching the following category-specific parameters:

Transistor Type (NPN)
Voltage - Collector Emitter Breakdown (Max)
Current - Collector (Ic) (Max)
Vce Saturation (Max) @ Ib, Ic
Current - Collector Cutoff (Max)
DC Current Gain (hFE) (Min) @ Ic, Vce
Power - Max
Frequency - Transition
Operating Temperature
Mounting Type
Package / Case
RoHS Status
Product Status

Parts listed below match these criteria within allowable ranges for typical BJT replacement in TO-252-3/DPAK surface mount power transistor applications.

Parameter Comparison

Manufacturer Part Number	Transistor Type	Voltage - Collector Emitter Breakdown (Max)	Current - Collector (Ic) (Max)	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	DC Current Gain (hFE) (Min) @ Ic, Vce	Power - Max	Frequency - Transition	Operating Temperature	Mounting Type	Package / Case	RoHS Status	Product Status
2SCR543DTL	NPN	50 V	4 A	350mV @ 100mA, 2A	1µA (ICBO)	180 @ 100mA, 3V	10 W	300MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Active
2SCR573D3TL1	NPN	50 V	3 A	350mV @ 50mA, 1A	1µA (ICBO)	180 @ 100mA, 3V	10 W	320MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Active
2SC5706-TL-E	NPN	50 V	5 A	240mV @ 100mA, 2A	1µA (ICBO)	200 @ 500mA, 2V	800 mW	400MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Active
2SD1803T-TL-H	NPN	50 V	5 A	400mV @ 150mA, 3A	1µA (ICBO)	200 @ 500mA, 2V	1 W	180MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Active
2SC5707-TL-E	NPN	50 V	8 A	240mV @ 175mA, 3.5A	100nA (ICBO)	200 @ 500mA, 2V	1 W	330MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Active
2SC6017-TL-E	NPN	50 V	10 A	360mV @ 250mA, 5A	10µA (ICBO)	200 @ 1A, 2V	950 mW	200MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Obsolete
2SD1802T-TL-E	NPN	50 V	3 A	500mV @ 100mA, 2A	1µA (ICBO)	200 @ 100mA, 2V	1 W	150MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Active
NJD2873T4G	NPN	50 V	2 A	300mV @ 50mA, 1A	100nA (ICBO)	120 @ 500mA, 2V	1.68 W	65MHz	-65°C ~ 175°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Active
NJVNJD2873T4G-VF01	NPN	50 V	2 A	300mV @ 50mA, 1A	100nA (ICBO)	120 @ 500mA, 2V	1.68 W	65MHz	-65°C ~ 175°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Obsolete
ZXT690BKQTC	NPN	45 V	3 A	350mV @ 150mA, 3A	20nA	500 @ 100mA, 2V	1.6 W	150MHz	-55°C ~ 150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3 Compliant	Active

Engineering Selection Recommendations

Select substitute parts based solely on their product status (Active or Obsolete) and RoHS compliance as stated in the parameters. All substitute parts listed are ROHS3 Compliant and meet the specified mounting type and package requirements. Obsolete substitutes (2SC6017-TL-E, NJVNJD2873T4G-VF01) may be suitable for legacy systems but are not preferable for new designs. Only Active status substitutes should be considered for continued production, aligning with compliance certifications and supported supply.

Frequently Asked Questions (FAQ)

Q1: What are the key substitution criteria for 2SCR543DTL?
A1: Substitute parts must match the transistor type (NPN), similar breakdown voltage, current rating, package/case, mounting type, and comply with ROHS3.

Q2: Are lower or higher current alternatives compatible?
A2: The maximum collector current should meet application requirements. Alternatives listed range from 2 A to 10 A, strictly based on supplied data.

Q3: Does package style impact substitution?
A3: All alternatives use a TO-252-3, DPAK (2 Leads + Tab), SC-63 surface mount package, matching the main part for board-level compatibility.

Q4: Are obsolete substitutes suitable for new designs?
A4: Obsolete status parts may be used for repairs or legacy support but not for new production runs.

Q5: What compliance criteria are mandatory for substitution?
A5: Only ROHS3-compliant substitutes are included; each entry meets stated environmental compliance and product category standards.

Q6: Is frequency or gain critical in substitute selection?
A6: Substitutes are listed with their transition frequency and DC current gain values for direct comparison.

Q7: Can substitutes with a slightly different voltage or power rating be used?
A7: All included substitutes fall within the electrical envelope specified by the category parameters. Select based on provided specifications in the comparison table.

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