2SC5706-TL-H Equivalent & Substitute Parts

Part Overview

The 2SC5706-TL-H is an NPN bipolar junction transistor manufactured by onsemi, rated for 50V collector-emitter breakdown voltage and 5A maximum collector current. This surface mount device in TO-252-3 (DPAK) packaging delivers 800mW power dissipation with 400MHz transition frequency. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product portfolio. Identifying equivalent and substitute parts is necessary for applications requiring continued support, design flexibility, or inventory optimization while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	50	V
Current - Collector (Ic) (Max)	5	A
Power - Max	800	mW
Frequency - Transition	400	MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	200 @ 500mA, 2V	—
Vce Saturation (Max) @ Ib, Ic	240mV @ 100mA, 2A	—
Operating Temperature (TJ)	150	°C
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the 2SC5706-TL-H are classified based on electrical parameter compatibility and mechanical interchangeability. The primary substitution criteria are:

Electrical Parameters:

Voltage - Collector Emitter Breakdown: 50V minimum
Current - Collector (Ic): 5A or greater
DC Current Gain (hFE): 200 or greater at specified conditions
Operating Temperature: 150°C or greater
Transistor Type: NPN

Mechanical Parameters:

Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type: Surface Mount
Supplier Device Package: TP-FA or equivalent

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Parts are grouped as follows:

Direct Equivalent (Parametric Equivalent): 2SC5706-TL-E matches all electrical specifications and packaging requirements with identical performance characteristics.

Direct Substitute (Functional Equivalent): 2SD1803T-TL-H meets all minimum electrical requirements with identical packaging, though with different saturation voltage and power rating specifications.

Similar Substitute (Higher Performance): 2SC5707-TL-E exceeds collector current rating (8A vs. 5A) and maintains voltage and gain specifications, suitable for applications requiring higher current capacity.

Cross-Manufacturer Alternative: 2SCR543DTL from Rohm Semiconductor provides similar electrical performance with different packaging designation (CPT3) and higher power rating (10W), requiring mechanical compatibility verification.

Parameter Comparison

Parameter	2SC5706-TL-H (Main)	2SC5706-TL-E	2SD1803T-TL-H	2SC5707-TL-E	2SCR543DTL
Manufacturer	onsemi	onsemi	onsemi	onsemi	Rohm Semiconductor
Product Status	Not For New Designs	Active	Active	Active	Active
Transistor Type	NPN	NPN	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	50V	50V	50V	50V	50V
Current - Collector (Ic) (Max)	5A	5A	5A	8A	4A
Power - Max	800mW	800mW	1W	1W	10W
Frequency - Transition	400MHz	400MHz	180MHz	330MHz	300MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	200 @ 500mA, 2V	200 @ 500mA, 2V	200 @ 500mA, 2V	200 @ 500mA, 2V	180 @ 100mA, 3V
Vce Saturation (Max) @ Ib, Ic	240mV @ 100mA, 2A	240mV @ 100mA, 2A	400mV @ 150mA, 3A	240mV @ 175mA, 3.5A	350mV @ 100mA, 2A
Operating Temperature (TJ)	150°C	150°C	150°C	150°C	150°C
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

2SC5706-TL-E (Parametric Equivalent - Recommended Primary Substitute)

The 2SC5706-TL-E is the optimal substitute for the 2SC5706-TL-H. This part maintains identical electrical specifications across all critical parameters: 50V breakdown voltage, 5A collector current, 400MHz transition frequency, and 800mW power dissipation. The device carries Active product status, ensuring continued manufacturer support and availability. Both parts share identical packaging (TO-252-3 DPAK), RoHS3 compliance, and MSL rating. The only distinction is the packaging variant designation (TL-E vs. TL-H), which reflects different tape and reel configurations without affecting electrical or mechanical performance. This part is suitable for direct replacement in all applications.

2SD1803T-TL-H (Direct Substitute - Alternative Option)

The 2SD1803T-TL-H provides functional equivalence with identical voltage and current ratings (50V, 5A) and matching package specifications. This part carries Active product status and full RoHS3 compliance. Differences include higher power dissipation (1W vs. 800mW), lower transition frequency (180MHz vs. 400MHz), and higher saturation voltage (400mV vs. 240mV). Selection of this part is appropriate for applications where the lower frequency response is acceptable and the higher power rating provides design margin.

2SC5707-TL-E (Higher Performance Substitute)

The 2SC5707-TL-E exceeds the collector current specification (8A vs. 5A) while maintaining the 50V voltage rating and 400MHz transition frequency. This part is suitable for applications requiring higher current capacity or where design margin is desired. The part carries Active status and full compliance certifications. The higher current rating does not compromise compatibility with circuits designed for 5A operation.

2SCR543DTL (Cross-Manufacturer Alternative)

The 2SCR543DTL from Rohm Semiconductor provides similar electrical performance with 50V voltage rating and 300MHz transition frequency. This part features significantly higher power dissipation (10W vs. 800mW) and different packaging designation (CPT3). The collector current rating is 4A, which is below the 5A specification of the main part. This option is suitable only for applications where the lower current requirement is acceptable and the higher power rating provides thermal margin. Cross-manufacturer substitution requires verification of thermal and mechanical mounting compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 2SC5706-TL-E be used as a direct replacement for the 2SC5706-TL-H?

A: Yes. The 2SC5706-TL-E is a parametric equivalent with identical electrical specifications and packaging. The difference between TL-E and TL-H designations refers to tape and reel packaging variants, not electrical performance. Direct substitution is supported without circuit modification.

Q: What is the difference between the 2SC5706-TL-H and 2SD1803T-TL-H?

A: Both parts share identical voltage (50V) and current (5A) ratings with matching TO-252-3 DPAK packaging. The 2SD1803T-TL-H has higher power dissipation (1W vs. 800mW), lower transition frequency (180MHz vs. 400MHz), and higher saturation voltage (400mV vs. 240mV). Selection depends on application frequency requirements and thermal design considerations.

Q: Why is the 2SC5706-TL-H marked as "Not For New Designs"?

A: This designation indicates the part has been superseded in the manufacturer's product portfolio. The 2SC5706-TL-E (Active status) is the recommended replacement for new designs. Existing applications using the TL-H variant can continue operation; however, new designs should transition to the TL-E variant to ensure long-term availability and manufacturer support.

Q: Can the 2SC5707-TL-E replace the 2SC5706-TL-H in all applications?

A: The 2SC5707-TL-E is suitable for most applications due to its higher collector current rating (8A vs. 5A) and maintained voltage and frequency specifications. However, applications with strict current or power budget constraints should verify that the higher current capability does not introduce unintended circuit behavior. The part is mechanically and electrically compatible.

Q: Is the 2SCR543DTL from Rohm Semiconductor a suitable substitute?

A: The 2SCR543DTL provides similar voltage (50V) and frequency (300MHz) performance with higher power dissipation (10W). However, the collector current rating is 4A, which is below the 5A specification of the main part. This part is suitable only for applications where the lower current requirement is acceptable. Mechanical compatibility of the CPT3 package variant with existing PCB layouts requires verification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification, matching the environmental compliance status of the 2SC5706-TL-H. All parts also maintain MSL rating of 1 (Unlimited), indicating identical moisture sensitivity handling requirements.

Q: What is the primary criterion for selecting among the substitute parts?

A: The primary selection criterion is application frequency requirement. The 2SC5706-TL-E and 2SC5707-TL-E maintain 400MHz and 330MHz transition frequencies respectively, suitable for high-frequency applications. The 2SD1803T-TL-H operates at 180MHz, appropriate for lower-frequency circuits. Current and power requirements are secondary criteria. The 2SCR543DTL should be selected only when higher power dissipation is required and lower collector current is acceptable.

Q: Can these parts be used interchangeably on the same PCB?

A: All substitute parts use identical TO-252-3 DPAK packaging with the same pin configuration and footprint. PCB layout compatibility is assured. However, thermal design considerations may differ due to varying power dissipation ratings. High-power applications using the 2SCR543DTL (10W) may benefit from enhanced thermal management compared to the 800mW main part.

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