UF5402GP-TP Equivalent & Substitute Parts

Part Overview

The UF5402GP-TP is a general-purpose rectifier diode rated for 200 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. Manufactured by Micro Commercial Co, this component is classified as Not For New Designs, indicating it has reached end-of-life status. The identification of equivalent and substitute parts is necessary to support existing designs, maintenance applications, and production continuity where this diode is currently specified.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 3 A	mV
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	10	µA @ 200 V
Package / Case	DO-201AD, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the UF5402GP-TP is determined by strict equivalence across the following critical parameters:

Voltage Rating: All substitute parts must maintain 200 V DC reverse voltage (Vr) maximum
Current Rating: All substitute parts must support 3 A average rectified current (Io)
Forward Voltage: All substitute parts must not exceed 950 mV forward voltage at 3 A
Package and Mounting: All substitute parts must use DO-201AD axial through-hole configuration
Speed Classification: All substitute parts must be Fast Recovery diodes with recovery time ≤ 500 ns for currents > 200 mA
Compliance: All substitute parts must maintain ROHS3 compliance and REACH unaffected status

The substitute parts identified—ER302_R2_00001, SF34G, SF34G A0G, and SF34GH—meet all these electrical and mechanical requirements and are available as active products from alternative manufacturers.

Parameter Comparison

Parameter	UF5402GP-TP	ER302_R2_00001	SF34G	SF34G A0G	SF34GH
Manufacturer	Micro Commercial Co	Panjit International Inc.	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 3 A	950 mV @ 3 A	950 mV @ 3 A	950 mV @ 3 A	950 mV @ 3 A
Reverse Recovery Time (trr)	50 ns	35 ns	35 ns	35 ns	35 ns
Current - Reverse Leakage @ Vr	10 µA @ 200 V	1 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V
Capacitance @ Vr, F	75 pF @ 4V, 1MHz	35 pF @ 4V, 1MHz	80 pF @ 4V, 1MHz	80 pF @ 4V, 1MHz	80 pF @ 4V, 1MHz
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	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C
Product Status	Not For New Designs	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT)	Cut Tape (CT)	Cut Tape (CT)
Grade	Standard	Standard	Standard	Standard	Automotive
Qualification	—	—	—	—	AEC-Q101

Engineering Selection Recommendations

All four substitute parts—ER302_R2_00001, SF34G, SF34G A0G, and SF34GH—are electrically and mechanically equivalent to the UF5402GP-TP and satisfy the core substitution criteria. Selection among these alternatives should be based on the following factors:

Product Status: ER302_R2_00001, SF34G, SF34G A0G, and SF34GH are all classified as Active products, ensuring ongoing availability and manufacturing support, in contrast to the UF5402GP-TP which is Not For New Designs.

Compliance and Certifications: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory standing. SF34GH additionally carries AEC-Q101 automotive qualification, making it suitable for applications requiring automotive-grade component certification.

Reverse Recovery Time: The substitute parts exhibit improved reverse recovery time (35 ns) compared to the original part (50 ns), resulting in faster switching characteristics and reduced switching losses in rectification circuits.

Reverse Leakage Current: ER302_R2_00001 demonstrates superior reverse leakage performance (1 µA) relative to the original part (10 µA), while SF34G, SF34G A0G, and SF34GH provide intermediate leakage characteristics (5 µA).

Packaging Availability: ER302_R2_00001 is available in Tape & Reel packaging, matching the original part's supply format. SF34G, SF34G A0G, and SF34GH are supplied in Cut Tape format, which may require alternative handling procedures depending on assembly equipment specifications.

Inventory Status: All substitute parts maintain adequate stock levels, with SF34G offering the highest inventory availability (3356 pieces).

Frequently Asked Questions (FAQ)

Q: Can ER302_R2_00001, SF34G, SF34G A0G, or SF34GH be used as direct replacements for UF5402GP-TP in existing designs?

A: Yes. All four substitute parts meet the electrical specifications (200 V reverse voltage, 3 A average rectified current, 950 mV forward voltage) and physical requirements (DO-201AD axial through-hole package) of the UF5402GP-TP. Direct substitution is electrically valid without circuit modification.

Q: What is the difference between SF34G, SF34G A0G, and SF34GH?

A: SF34G and SF34G A0G are functionally identical standard-grade diodes supplied in Cut Tape packaging. SF34GH is an automotive-grade variant of the same base part (SF34) with AEC-Q101 qualification, also supplied in Cut Tape packaging. All three share identical electrical parameters.

Q: Why does ER302_R2_00001 show lower reverse leakage current (1 µA) compared to the original UF5402GP-TP (10 µA)?

A: Lower reverse leakage current indicates improved semiconductor material quality and manufacturing process control in the ER302_R2_00001. This represents a performance enhancement and does not affect substitution compatibility.

Q: Is the improved reverse recovery time (35 ns) of the substitute parts a concern for circuit compatibility?

A: No. Faster reverse recovery time (35 ns versus 50 ns) is a performance improvement that reduces switching losses and electromagnetic interference. It does not create compatibility issues in circuits designed for the original part.

Q: What is the significance of AEC-Q101 qualification on SF34GH?

A: AEC-Q101 is an automotive industry qualification standard for discrete semiconductors. SF34GH meets this qualification, making it suitable for automotive applications requiring certified components. Standard-grade alternatives (SF34G, SF34G A0G, ER302_R2_00001) are not automotive-qualified.

Q: Does the packaging difference (Tape & Reel versus Cut Tape) affect electrical performance?

A: No. Packaging format affects supply and handling procedures only. Tape & Reel (TR) and Cut Tape (CT) formats contain identical components with identical electrical characteristics. Selection depends on assembly equipment compatibility and procurement requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ER302_R2_00001, SF34G, SF34G A0G, and SF34GH are all ROHS3 compliant and REACH unaffected, matching the regulatory status of the original UF5402GP-TP.

Q: Which substitute part offers the best overall performance?

A: ER302_R2_00001 provides the lowest reverse leakage current (1 µA) and is available in Tape & Reel packaging matching the original supply format. SF34GH is the optimal choice for automotive applications requiring AEC-Q101 certification. SF34G and SF34G A0G are cost-effective alternatives with standard-grade performance and highest inventory availability.

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