SF63G-AP General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The SF63G-AP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 150V DC reverse voltage and 6A average rectified current in a DO-201AD axial through-hole package. This diode is classified as "Not For New Designs," indicating it has reached end-of-life status. Organizations using this component in active production or maintenance applications require qualified substitute parts that maintain electrical and mechanical compatibility while offering continued availability and active product support.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	150	V
Current - Average Rectified (Io)	6	A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 6 A	mV
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5	µA @ 150 V
Package / Case	DO-201AD, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55°C ~ 150°C	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SF63G-AP are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 150 V
Current - Average Rectified (Io): 6 A
Voltage - Forward (Vf) (Max) @ If: 975 mV @ 6 A
Reverse Recovery Time (trr): 35 ns
Current - Reverse Leakage @ Vr: 5 µA @ 150 V

Mechanical Parameters (Must Match):

Package / Case: DO-201AD, Axial
Mounting Type: Through Hole

Compliance Parameters (Must Match or Exceed):

RoHS Status: ROHS3 Compliant
Operating Temperature Range: -55°C ~ 150°C

Substitute parts identified below meet all electrical and mechanical requirements. Variations in capacitance (100pF vs 120pF @ 4V, 1MHz) remain within acceptable tolerance for general purpose rectifier applications and do not affect substitution eligibility. Automotive-grade variants with AEC-Q101 qualification are included as higher-reliability options for applications requiring enhanced quality assurance.

Parameter Comparison

Parameter	SF63G-AP (Main Part)	SF63G A0G (Substitute 1)	SF63GHA0G (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)	150 V	150 V	150 V
Current - Average Rectified (Io)	6 A	6 A	6 A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 6 A	975 mV @ 6 A	975 mV @ 6 A
Reverse Recovery Time (trr)	35 ns	35 ns	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 150 V	5 µA @ 150 V	5 µA @ 150 V
Capacitance @ Vr, F	120 pF @ 4V, 1MHz	100 pF @ 4V, 1MHz	100 pF @ 4V, 1MHz
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Mounting Type	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Grade	Standard	Standard	Automotive
Qualification	—	—	AEC-Q101

Engineering Selection Recommendations

SF63G A0G (Taiwan Semiconductor Corporation): This substitute part is electrically and mechanically identical to the SF63G-AP with active product status. It is suitable for standard industrial applications requiring general purpose rectification at 150V/6A ratings. The part maintains full ROHS3 compliance and identical thermal operating range. Selection of this substitute is appropriate for applications where standard-grade components meet functional requirements.

SF63GHA0G (Taiwan Semiconductor Corporation): This substitute part provides identical electrical and mechanical specifications to the SF63G-AP with the addition of automotive-grade classification and AEC-Q101 qualification. Active product status and enhanced quality assurance make this variant suitable for applications requiring higher reliability standards, automotive environments, or quality-critical systems. The automotive qualification does not alter electrical performance but provides additional process controls and traceability.

Both substitute parts eliminate the obsolescence risk associated with the SF63G-AP's "Not For New Designs" status while maintaining full functional compatibility in DO-201AD through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can SF63G A0G or SF63GHA0G be used as direct replacements for SF63G-AP in existing designs?

A: Yes. Both substitute parts meet all electrical parameters (150V reverse voltage, 6A rectified current, 975mV forward voltage, 35ns recovery time, 5µA leakage current) and are packaged in identical DO-201AD axial through-hole configuration. No circuit modifications are required.

Q: What is the difference between SF63G A0G and SF63GHA0G?

A: Both parts are electrically equivalent. SF63GHA0G carries automotive-grade classification with AEC-Q101 qualification, indicating enhanced manufacturing controls and quality assurance. Standard applications may use SF63G A0G; automotive or mission-critical applications should specify SF63GHA0G.

Q: Does the capacitance difference (120pF vs 100pF) affect substitution?

A: No. The capacitance variation (120pF in SF63G-AP versus 100pF in both substitutes) is within acceptable tolerance for general purpose rectifier diodes and does not impact functional compatibility in standard rectification circuits.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both SF63G A0G and SF63GHA0G are ROHS3 compliant, matching the compliance status of the original SF63G-AP.

Q: What is the inventory status of substitute parts?

A: SF63G A0G has 874 pieces in stock; SF63GHA0G has 934 pieces in stock. Both are available as new original components.

Q: Can these diodes be used in high-temperature applications?

A: Yes. All three parts (original and substitutes) support operating junction temperatures from -55°C to 150°C, enabling use across standard industrial and automotive temperature ranges.

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