SF15G-AP General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The SF15G-AP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 300V DC reverse voltage and 1A average rectified current in a DO-41 through-hole package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Organizations using this diode in active production or maintenance applications require qualified substitute components that maintain electrical and mechanical compatibility while offering active product status and continued supply availability.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1 A
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5	µA @ 300 V
Capacitance @ Vr, F	10	pF @ 4V, 1MHz
Package / Case	DO-204AL, DO-41, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SF15G-AP is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish valid substitutes:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 300 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A
Reverse Recovery Time (trr): 35 ns
Current - Reverse Leakage @ Vr: 5 µA @ 300 V
Capacitance @ Vr, F: 10 pF @ 4V, 1MHz

Mechanical Parameters (Must Match):

Package / Case: DO-204AL, DO-41, Axial
Mounting Type: Through Hole

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Operating Temperature - Junction: -55°C to 150°C

Substitute parts identified below meet all electrical and mechanical specifications. The primary distinction between substitute options is product status (Active vs. Not For New Designs) and optional automotive qualification.

Parameter Comparison

Parameter	SF15G-AP (Main Part)	SF15G A0G (Substitute 1)	SF15GHA0G (Substitute 2)
Manufacturer	Micro Commercial Co	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Product Status	Not For New Designs	Active	Active
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	300 V
Current - Average Rectified (Io)	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	1.3 V @ 1 A	1.3 V @ 1 A
Reverse Recovery Time (trr)	35 ns	35 ns	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 300 V	5 µA @ 300 V	5 µA @ 300 V
Capacitance @ Vr, F	10 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Mounting Type	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Technology	Standard	Standard	Standard
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Grade	—	—	Automotive
Qualification	—	—	AEC-Q101

Engineering Selection Recommendations

For Standard Applications: The SF15G A0G (Taiwan Semiconductor Corporation) provides direct electrical and mechanical equivalence to the SF15G-AP with the advantage of Active product status. This substitute is suitable for general purpose rectification applications where automotive qualification is not required. The part maintains identical electrical performance across all specified parameters and is available in higher inventory quantities (918 Pcs).

For Automotive Applications: The SF15GHA0G (Taiwan Semiconductor Corporation) is the appropriate selection for automotive or mission-critical applications. This variant carries AEC-Q101 qualification and Automotive grade designation while maintaining identical electrical specifications to the main part. Active product status ensures long-term supply continuity. Inventory availability is highest among all options (1090 Pcs).

Product Status Consideration: Both substitute parts carry Active product status, eliminating the supply risk associated with the SF15G-AP's "Not For New Designs" classification. Selection between the two substitutes depends solely on application requirements: standard industrial use (SF15G A0G) or automotive/qualified applications (SF15GHA0G).

Frequently Asked Questions (FAQ)

Q: Can SF15G A0G and SF15GHA0G be used interchangeably with SF15G-AP?

A: Both substitute parts meet all electrical and mechanical specifications of the SF15G-AP. SF15G A0G is suitable for standard applications. SF15GHA0G includes automotive qualification (AEC-Q101) and is required for automotive applications. Selection depends on application requirements, not interchangeability.

Q: What is the significance of the "Not For New Designs" status on SF15G-AP?

A: This status indicates the part has reached end-of-life and is no longer recommended for new product designs. Existing inventory may be available, but long-term supply cannot be guaranteed. Substitute parts with Active status (SF15G A0G and SF15GHA0G) provide assured supply continuity.

Q: Are the DO-41 and DO-204AL package designations equivalent?

A: Yes. DO-204AL is the formal JEDEC designation for the package commonly referred to as DO-41. Both designations describe the same axial through-hole package configuration. All three parts (main and substitutes) use this identical package.

Q: Do the substitute parts require any circuit modifications?

A: No. The substitute parts maintain identical electrical parameters across voltage rating, current rating, forward voltage, reverse recovery time, leakage current, and capacitance. Direct replacement in existing circuits is supported without modification.

Q: What is the difference between SF15G A0G and SF15GHA0G beyond automotive qualification?

A: Both parts are electrically and mechanically identical. SF15GHA0G includes AEC-Q101 automotive qualification and Automotive grade designation. This qualification is required for automotive applications but not necessary for standard industrial use. Selection is application-dependent.

Q: Is RoHS compliance maintained across all parts?

A: Yes. The main part SF15G-AP and both substitutes (SF15G A0G and SF15GHA0G) are ROHS3 Compliant, ensuring compatibility with RoHS-regulated applications.

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