2SCR574DGTL Equivalent & Substitute Parts

Part Overview

The 2SCR574DGTL is an NPN bipolar junction transistor manufactured by Rohm Semiconductor, designed for general-purpose switching and amplification applications. This surface mount device operates at a maximum collector current of 2 A with a collector-emitter breakdown voltage of 80 V and delivers 10 W maximum power dissipation. The device features a transition frequency of 280 MHz and is packaged in the TO-252-3 (DPAK) configuration with CPT3 supplier designation. The 2SCR574DGTL maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to address supply chain requirements, packaging preferences, and application-specific qualifications while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	2	A
Voltage - Collector Emitter Breakdown (Max)	80	V
Vce Saturation (Max) @ Ib, Ic	300 mV @ 50 mA, 1 A	—
Current - Collector Cutoff (Max)	1	µA (ICBO)
DC Current Gain (hFE) Min @ Ic, Vce	120 @ 100 mA, 3 V	—
Power - Max	10	W
Frequency - Transition	280	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 2SCR574DGTL is determined by electrical parameter equivalence and mechanical compatibility within the TO-252-3 package family. The critical parameters governing substitution are:

Electrical Equivalence Criteria:

Transistor Type: NPN configuration
Current - Collector (Ic) Max: 2 A minimum
Voltage - Collector Emitter Breakdown (Max): 80 V minimum
Power - Max: 10 W minimum
DC Current Gain (hFE) Min: 120 or greater at specified bias conditions
Frequency - Transition: 280 MHz or greater

Mechanical Compatibility Criteria:

Mounting Type: Surface Mount
Package / Case: TO-252-3, DPAK configuration
Supplier Device Package: Compatible with CPT3 or TO-252 designations

Compliance Criteria:

RoHS3 Compliance: Required
Moisture Sensitivity Level: MSL 1 (Unlimited) preferred
Product Status: Active or equivalent qualification status

Substitute parts are classified into two categories: Direct Manufacturer Equivalents (identical electrical and mechanical specifications with packaging variations) and Parametric Equivalents (meeting or exceeding all electrical parameters with additional qualifications such as automotive certification).

Parameter Comparison

Parameter	2SCR574DGTL	2SCR574D3TL1	2SCR574D3FRATL	2SC4135S-TL-E
Manufacturer	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor	onsemi
Transistor Type	NPN	NPN	NPN	NPN
Current - Collector (Ic) Max	2 A	2 A	2 A	2 A
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	80 V	100 V
Vce Saturation (Max) @ Ib, Ic	300 mV @ 50 mA, 1 A	300 mV @ 50 mA, 1 A	300 mV @ 50 mA, 1 A	400 mV @ 100 mA, 1 A
Current - Collector Cutoff (Max)	1 µA (ICBO)	1 µA (ICBO)	1 µA (ICBO)	100 nA (ICBO)
DC Current Gain (hFE) Min @ Ic, Vce	120 @ 100 mA, 3 V	120 @ 100 mA, 3 V	120 @ 100 mA, 3 V	140 @ 100 mA, 5 V
Power - Max	10 W	10 W	10 W	1 W
Frequency - Transition	280 MHz	280 MHz	280 MHz	120 MHz
Operating Temperature (TJ)	150 °C	150 °C	150 °C	150 °C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Product Status	Active	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Grade / Qualification	Standard	Standard	Automotive (AEC-Q101)	Standard

Engineering Selection Recommendations

2SCR574D3TL1 (Direct Equivalent)

The 2SCR574D3TL1 is a direct electrical and mechanical equivalent to the 2SCR574DGTL, manufactured by Rohm Semiconductor with identical electrical specifications. This part differs only in packaging designation (TO-252 vs. CPT3 supplier package) and is supplied in Cut Tape and Digi-Reel formats. Selection of this part is appropriate for applications requiring standard commercial-grade components with Active product status and full RoHS3 compliance. Higher inventory availability (7807 units) supports supply chain continuity.

2SCR574D3FRATL (Parametric Equivalent with Automotive Qualification)

The 2SCR574D3FRATL meets all electrical parameters of the 2SCR574DGTL and adds automotive-grade qualification under AEC-Q101 standard. This part is suitable for applications requiring automotive-level reliability and traceability. The identical electrical specifications and TO-252-3 package compatibility ensure direct functional substitution. Selection of this part is appropriate when automotive qualification is a design requirement or supply chain specification. Product status is Active with full RoHS3 compliance.

2SC4135S-TL-E (Limited Compatibility)

The 2SC4135S-TL-E is manufactured by onsemi and exhibits parametric differences that restrict its use as a direct substitute. This part operates at a higher collector-emitter breakdown voltage (100 V vs. 80 V), reduced maximum power dissipation (1 W vs. 10 W), lower transition frequency (120 MHz vs. 280 MHz), and higher saturation voltage (400 mV vs. 300 mV). The product status is Obsolete, indicating discontinued manufacturing. This part is not recommended for new designs or as a primary substitute for the 2SCR574DGTL due to electrical parameter limitations and obsolescence status.

Frequently Asked Questions (FAQ)

Q: Can the 2SCR574D3TL1 be used as a direct replacement for the 2SCR574DGTL?

A: Yes. The 2SCR574D3TL1 is electrically and mechanically equivalent to the 2SCR574DGTL. Both parts share identical electrical specifications including collector current (2 A), breakdown voltage (80 V), power rating (10 W), transition frequency (280 MHz), and DC current gain (120 minimum). Both are packaged in TO-252-3 DPAK configuration and comply with RoHS3 standards. The difference is packaging format: 2SCR574D3TL1 is supplied in Cut Tape and Digi-Reel, while 2SCR574DGTL uses CPT3 supplier designation.

Q: What is the advantage of selecting the 2SCR574D3FRATL over the 2SCR574DGTL?

A: The 2SCR574D3FRATL provides automotive-grade qualification under AEC-Q101 standard while maintaining identical electrical specifications. Selection of this part is appropriate for applications requiring automotive-level reliability, traceability, and qualification documentation. The part is suitable for automotive and industrial applications where qualification standards are specified.

Q: Why is the 2SC4135S-TL-E not recommended as a substitute?

A: The 2SC4135S-TL-E exhibits significant electrical parameter differences that prevent direct substitution. The maximum power dissipation is reduced to 1 W (compared to 10 W for the 2SCR574DGTL), transition frequency is lower at 120 MHz (compared to 280 MHz), and saturation voltage is higher at 400 mV (compared to 300 mV). Additionally, the product status is Obsolete, indicating discontinued manufacturing. These factors make this part unsuitable for new designs or as a primary substitute.

Q: Are all substitute parts compatible with the TO-252-3 package footprint?

A: Yes. All listed substitute parts are packaged in TO-252-3 DPAK configuration with identical mechanical dimensions and pin assignments. This ensures direct footprint compatibility on printed circuit boards designed for the 2SCR574DGTL.

Q: Do all substitute parts meet RoHS3 compliance requirements?

A: Yes. All substitute parts listed (2SCR574D3TL1, 2SCR574D3FRATL, and 2SC4135S-TL-E) are RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the 2SCR574DGTL.

Q: What is the difference between CPT3 and TO-252 supplier package designations?

A: CPT3 and TO-252 are supplier-specific package designations for the same physical TO-252-3 DPAK configuration. Both designations refer to identical mechanical packages with the same footprint, pin count, and thermal characteristics. The difference is in supplier labeling and tape/reel format. Parts designated as CPT3 and TO-252 are mechanically and electrically interchangeable.

Q: Can the 2SC4135S-TL-E be used in high-power applications?

A: No. The 2SC4135S-TL-E has a maximum power rating of 1 W, which is insufficient for applications requiring the 10 W power dissipation capability of the 2SCR574DGTL. Additionally, the reduced transition frequency (120 MHz vs. 280 MHz) and higher saturation voltage limit its use in high-frequency switching applications.

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