SF13G-AP General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The SF13G-AP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 150 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent and substitute parts is necessary to support existing applications, legacy system maintenance, and design transitions to active product alternatives.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	150	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 1 A	mV
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5	µA @ 150 V
Mounting Type	Through Hole	-
Package / Case	DO-204AL, DO-41, Axial	-
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the SF13G-AP is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

Voltage - DC Reverse (Vr) (Max): 150 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 950 mV @ 1 A
Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, Axial
Operating Temperature - Junction: -55°C to 150°C
Technology: Standard
RoHS Status: ROHS3 Compliant

All substitute parts listed below meet these electrical and mechanical requirements. Reverse recovery time (trr) and reverse leakage current remain within acceptable ranges for general purpose rectification applications. Substitute parts are grouped by manufacturer and product status (Active vs. Not For New Designs).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	trr [ns]	Ir @ Vr [µA]	Package	Product Status	Inventory [Pcs]
SF13G-AP	Micro Commercial Co	150	1	950 @ 1 A	35	5 @ 150 V	DO-204AL, DO-41	Not For New Designs	856
SF13G A0G	Taiwan Semiconductor Corporation	150	1	950 @ 1 A	35	5 @ 150 V	DO-204AL, DO-41	Active	692
SF13GHA0G	Taiwan Semiconductor Corporation	150	1	950 @ 1 A	35	5 @ 150 V	DO-204AL, DO-41	Active	741
UG1C-E3/73	Vishay General Semiconductor - Diodes Division	150	1	950 @ 1 A	25	5 @ 150 V	DO-204AL, DO-41	Active	1008
UG1C-M3/73	Vishay General Semiconductor - Diodes Division	150	1	950 @ 1 A	25	5 @ 150 V	DO-204AL, DO-41	Active	755

Engineering Selection Recommendations

For Legacy System Support: The SF13G A0G and SF13GHA0G from Taiwan Semiconductor Corporation provide direct electrical and mechanical equivalence to the SF13G-AP. Both parts are Active products with identical electrical specifications. The SF13GHA0G includes AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade reliability.

For New Designs and Long-Term Availability: The UG1C-E3/73 and UG1C-M3/73 from Vishay General Semiconductor are Active products with superior reverse recovery time performance (25 ns versus 35 ns). These parts maintain full electrical equivalence across voltage, current, and thermal ratings. The UG1C-M3/73 provides specified capacitance data (7 pF @ 4 V, 1 MHz), offering additional design documentation.

All substitute parts are ROHS3 Compliant and REACH Unaffected, maintaining regulatory compliance with the original SF13G-AP.

Frequently Asked Questions (FAQ)

Q: Can SF13G A0G directly replace SF13G-AP in existing circuits?

A: Yes. The SF13G A0G meets all electrical and mechanical specifications of the SF13G-AP, including voltage rating (150 V), current rating (1 A), forward voltage drop (950 mV @ 1 A), and package format (DO-204AL, DO-41). Both parts are ROHS3 Compliant and operate across the same temperature range (-55°C to 150°C).

Q: What is the difference between SF13GHA0G and SF13G A0G?

A: Both parts are electrically identical. The SF13GHA0G includes AEC-Q101 automotive qualification and is designated as an automotive-grade component. Selection between these parts depends on application requirements for automotive reliability standards.

Q: How do the Vishay UG1C series parts compare to the SF13G-AP?

A: The UG1C-E3/73 and UG1C-M3/73 are fully equivalent in voltage, current, and thermal specifications. The primary difference is reverse recovery time: UG1C series parts specify 25 ns compared to 35 ns for SF13G-AP. This faster recovery characteristic is beneficial for high-frequency switching applications but does not affect compatibility in standard rectification circuits.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts are supplied in DO-204AL (DO-41) axial through-hole packages, ensuring mechanical and pin compatibility with the SF13G-AP.

Q: Which substitute part should be selected for new product designs?

A: The UG1C-E3/73 or UG1C-M3/73 from Vishay are recommended for new designs, as both are Active products with established long-term availability. The UG1C-M3/73 provides additional capacitance specification data for circuit design optimization.

Q: Do all substitute parts meet RoHS and REACH compliance?

A: Yes. All substitute parts listed are ROHS3 Compliant and REACH Unaffected, maintaining regulatory compliance equivalent to the SF13G-AP.

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