SF48GHA0G Equivalent & Substitute Parts

Part Overview

The SF48GHA0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 4 A average rectified current in a DO-201AD axial through-hole package. This diode features fast recovery characteristics with a reverse recovery time of 35 ns and operates across a junction temperature range of -55°C to 150°C. The device is AEC-Q101 qualified for automotive applications and maintains active product status with ROHS3 compliance.

Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications of the SF48GHA0G within the same package category. Substitutes are selected where voltage rating, current capacity, recovery speed, and thermal operating range align with or exceed the original device parameters.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	4	A
Voltage - Forward (Vf) (Max) @ If	1.7 @ 4	V @ A
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns	-
Package / Case	DO-201AD, Axial	-
Mounting Type	Through Hole	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-
Qualification	AEC-Q101	-

Substitute Part Grouping Explanation

Substitution logic for the SF48GHA0G is based on the following critical parameters:

Voltage Rating: All substitute parts maintain the 600 V DC reverse voltage specification, ensuring compatibility in circuits designed for this voltage class.

Current Capacity: Substitute parts are grouped by current rating. Parts with equal or higher current capacity (3 A, 4 A, or 6 A) are acceptable substitutes, as they can handle the same or greater load without exceeding thermal or electrical limits.

Recovery Speed: The SF48GHA0G operates as a fast recovery diode (≤ 500 ns). Substitute parts classified as fast recovery maintain switching performance characteristics. Standard recovery diodes (> 500 ns) are listed separately due to different transient response behavior.

Package Compatibility: All substitute parts use the DO-201AD axial through-hole package, ensuring mechanical and electrical compatibility with existing PCB layouts and mounting infrastructure.

Operating Temperature Range: Substitute parts with operating ranges of -55°C to 150°C or higher maintain thermal compatibility with the original specification.

Compliance and Qualification: All substitute parts maintain ROHS3 compliance and active product status. AEC-Q101 qualification is noted where applicable.

Parameter Comparison

Parameter	SF48GHA0G (Taiwan Semiconductor)	STTH3R06 (STMicroelectronics)	STTH3R06RL (STMicroelectronics)	UF5406-E3/54 (Vishay)	60S6-TP (Micro Commercial Co)
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	4 A	3 A	3 A	3 A	6 A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 4 A	1.7 V @ 3 A	1.7 V @ 3 A	1.7 V @ 3 A	1 V @ 6 A
Speed Classification	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Standard Recovery > 500ns
Reverse Recovery Time (trr)	35 ns	35 ns	35 ns	75 ns	Not specified
Current - Reverse Leakage @ Vr	5 µA @ 600 V	3 µA @ 600 V	3 µA @ 600 V	10 µA @ 600 V	5 µA @ 600 V
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55 to 150°C	Up to 175°C	Up to 175°C	-55 to 150°C	-55 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Current-Matched Substitutes: The SF48GHA0G operates at 4 A average rectified current. No substitute part in the provided list matches this exact current rating. The STTH3R06, STTH3R06RL, and UF5406-E3/54 are rated for 3 A, representing a lower current capacity. These parts are suitable for applications where the circuit load does not exceed 3 A.

Higher Current Capacity Substitute: The 60S6-TP is rated for 6 A average rectified current, exceeding the SF48GHA0G specification. This part accommodates higher current loads and provides design margin. However, the 60S6-TP operates as a standard recovery diode (> 500 ns), differing from the fast recovery classification of the SF48GHA0G.

Fast Recovery Alternatives: The STTH3R06, STTH3R06RL, and UF5406-E3/54 maintain fast recovery characteristics (≤ 500 ns). The STTH3R06 and STTH3R06RL feature identical reverse recovery time (35 ns) to the SF48GHA0G. The UF5406-E3/54 exhibits a longer recovery time (75 ns) while remaining within the fast recovery classification.

Thermal Considerations: The STTH3R06 and STTH3R06RL support junction temperatures up to 175°C, exceeding the SF48GHA0G maximum of 150°C. The STTH3R06RL variant provides equivalent electrical performance with extended thermal capability.

Compliance and Availability: All substitute parts maintain ROHS3 compliance and active product status. The STTH3R06RL offers the highest inventory availability (2000 pcs) among fast recovery alternatives.

Frequently Asked Questions (FAQ)

Q: Can the STTH3R06 or STTH3R06RL replace the SF48GHA0G in a 4 A circuit?

A: The STTH3R06 and STTH3R06RL are rated for 3 A average rectified current, which is lower than the SF48GHA0G 4 A rating. These parts are suitable only for circuits where the actual operating current does not exceed 3 A. Operating at or above 4 A will exceed the device rating and cause thermal stress.

Q: What is the difference between the STTH3R06 and STTH3R06RL?

A: Both parts are electrically identical, with matching voltage ratings (600 V), current capacity (3 A), forward voltage (1.7 V @ 3 A), and reverse recovery time (35 ns). The primary difference is packaging format: STTH3R06 is supplied in cut tape, while STTH3R06RL is also supplied in cut tape. Both support junction temperatures up to 175°C.

Q: Is the 60S6-TP a suitable substitute for the SF48GHA0G?

A: The 60S6-TP provides higher current capacity (6 A) and maintains the 600 V voltage rating, making it mechanically and electrically compatible in the DO-201AD package. However, the 60S6-TP operates as a standard recovery diode (> 500 ns), whereas the SF48GHA0G is a fast recovery device (≤ 500 ns). This difference affects switching transient response and may impact circuit performance in high-frequency applications.

Q: Do all substitute parts use the same DO-201AD package?

A: Yes. All substitute parts listed (STTH3R06, STTH3R06RL, UF5406-E3/54, and 60S6-TP) use the DO-201AD axial through-hole package, ensuring mechanical compatibility with existing PCB layouts and mounting infrastructure.

Q: Which substitute part has the lowest reverse leakage current?

A: The STTH3R06 and STTH3R06RL both exhibit 3 µA reverse leakage at 600 V, which is lower than the SF48GHA0G (5 µA). The UF5406-E3/54 has 10 µA reverse leakage, and the 60S6-TP has 5 µA, matching the original specification.

Q: Are all substitute parts AEC-Q101 qualified?

A: AEC-Q101 qualification is specified only for the SF48GHA0G. Qualification status for substitute parts is not provided in the available data. Automotive applications requiring AEC-Q101 qualification should verify this requirement with the component supplier.

Q: What is the forward voltage difference between the SF48GHA0G and substitute parts?

A: The SF48GHA0G, STTH3R06, STTH3R06RL, and UF5406-E3/54 all specify 1.7 V forward voltage at their respective rated currents. The 60S6-TP specifies 1 V forward voltage at 6 A, representing lower forward voltage drop at higher current.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message