SF54-AP Equivalent & Substitute Parts

Part Overview

The SF54-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 5 A average rectified current in a DO-201AD axial through-hole package. This part is classified as obsolete, making identification of active equivalent and substitute components necessary for ongoing design support and procurement.

The SF54-AP features fast recovery characteristics with a reverse recovery time of 35 nanoseconds, suitable for applications requiring rapid switching performance. The part is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substiute Parts

SF54-AP

Micro Commercial CoIn Stock: 1147SF54-AP Datasheet

Current PartRFQ

SF54G-AP

Micro Commercial CoIn Stock: 879SF54G-AP Datasheet

DirectRFQ

1N5402GHB0G

Taiwan Semiconductor CorporationIn Stock: 8691N5402GHB0G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SF54-AP is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Voltage - DC Reverse (Vr) rating must equal or exceed 200 V
• Current - Average Rectified (Io) rating must equal or exceed 5 A
• Forward voltage drop (Vf) must not exceed specified maximum at rated current
• Reverse recovery time (trr) must support fast recovery classification (≤ 500 ns)

Mechanical & Package Requirements:

• Package type must be DO-201AD axial through-hole configuration
• Mounting type must be through-hole compatible with existing PCB layouts

Compliance & Status Requirements:

• RoHS3 compliance required
• Active product status preferred for long-term availability

Substitute Categories:

Direct Equivalent (SF54G-AP): Identical electrical specifications with active product status and improved temperature range (-65°C to 150°C). Packaging upgraded to Tape & Box (TB) format. All critical parameters match or exceed the SF54-AP.

Similar Substitute (1N5402GHB0G): Meets voltage and package requirements but with reduced current rating (3 A versus 5 A) and standard recovery speed classification. Suitable only for applications with current requirements ≤ 3 A. Includes automotive qualification (AEC-Q101) and extended temperature range.

Parameter Comparison

Engineering Selection Recommendations

SF54G-AP (Direct Equivalent - Recommended):

The SF54G-AP is the primary substitute for the obsolete SF54-AP. This part maintains identical electrical specifications including 200 V reverse voltage rating, 5 A average rectified current, 950 mV forward voltage drop at 5 A, and 35 ns reverse recovery time. The SF54G-AP is manufactured by the same supplier (Micro Commercial Co) and uses the same DO-201AD axial through-hole package.

Key advantages include active product status ensuring long-term availability, extended operating temperature range (-65°C to 150°C versus -55°C to 150°C), and upgraded packaging format (Tape & Box). RoHS3 compliance and MSL 1 rating are maintained. This part provides direct functional replacement with no design modifications required.

1N5402GHB0G (Similar Substitute - Limited Application):

The 1N5402GHB0G is suitable only for applications where the average rectified current requirement does not exceed 3 A. While this part meets the 200 V reverse voltage requirement and uses the same DO-201AD package, the reduced current rating (3 A versus 5 A) and standard recovery speed classification (> 500 ns versus ≤ 500 ns fast recovery) represent functional limitations.

This part includes automotive qualification (AEC-Q101) and is manufactured by Taiwan Semiconductor Corporation. Selection of this substitute requires verification that circuit current demands remain within the 3 A maximum specification. The standard recovery speed may impact switching performance in applications requiring fast recovery characteristics.

Frequently Asked Questions (FAQ)

Q: Can SF54G-AP directly replace SF54-AP without circuit modifications?

A: Yes. The SF54G-AP maintains all critical electrical parameters: 200 V reverse voltage, 5 A average rectified current, 950 mV forward voltage drop at 5 A, and 35 ns reverse recovery time. The DO-201AD axial through-hole package is identical. No design changes are required.

Q: What is the primary difference between SF54-AP and SF54G-AP?

A: The SF54-AP is obsolete while SF54G-AP is active. SF54G-AP offers an extended operating temperature range (-65°C to 150°C versus -55°C to 150°C) and improved packaging (Tape & Box format). Electrical performance is equivalent.

Q: Can 1N5402GHB0G replace SF54-AP in all applications?

A: No. The 1N5402GHB0G has a reduced average rectified current rating of 3 A compared to the SF54-AP's 5 A rating. This part is suitable only for circuits with maximum current requirements of 3 A or less. Additionally, the 1N5402GHB0G uses standard recovery speed classification (> 500 ns) rather than fast recovery (≤ 500 ns), which may affect switching performance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both SF54G-AP and 1N5402GHB0G are RoHS3 compliant with MSL 1 (unlimited moisture sensitivity level), matching the compliance profile of the SF54-AP.

Q: What is the significance of the DO-201AD package specification?

A: The DO-201AD is an axial through-hole package with specific lead diameter and spacing. All listed substitutes use this identical package, ensuring mechanical compatibility with existing PCB layouts and through-hole assembly processes. No footprint modifications are necessary.

Q: Why does 1N5402GHB0G have lower capacitance (25 pF) compared to SF54-AP (45 pF)?

A: Capacitance variation is a function of semiconductor junction design and doping profile. The lower capacitance of the 1N5402GHB0G reflects its lower current rating (3 A) and standard recovery speed classification. This parameter difference does not prevent substitution in applications within the 3 A current limit, but may affect high-frequency circuit behavior.

Q: Is automotive qualification (AEC-Q101) required for SF54-AP replacement?

A: Automotive qualification is not required unless the original application specifies it. The SF54G-AP does not carry AEC-Q101 qualification but meets all electrical and compliance requirements for general-purpose rectification. The 1N5402GHB0G includes AEC-Q101 qualification if automotive-grade components are specified.