SF10GG-T Equivalent & Substitute Parts

Part Overview

The SF10GG-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 400 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The SF10GG-T features fast recovery characteristics with a reverse recovery time of 40 ns, suitable for applications requiring rapid switching performance in power supply and rectification circuits.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	400 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	40 ns
Current - Reverse Leakage @ Vr	10 µA @ 400 V
Mounting Type	Through Hole
Package / Case	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65°C ~ 150°C
Technology	Standard
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SF10GG-T are grouped based on strict electrical and mechanical parameter compatibility. All substitute parts must meet or exceed the following core requirements:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1 A
Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, or Axial configuration
Technology: Standard

Substitution Categories:

Category 1: Parametric Equivalents (Diodes Incorporated) Parts PR1004G-T and UF1004-T are parametric equivalents manufactured by Diodes Incorporated. These parts maintain identical voltage and current ratings with active product status. Both are ROHS3 compliant and feature fast recovery characteristics. PR1004G-T is supplied in Tape & Reel packaging with 150 ns reverse recovery time. UF1004-T is supplied in Cut Tape packaging with 50 ns reverse recovery time and represents the highest inventory availability at 5220 pieces.

Category 2: Manufacturer Recommended Alternatives (Vishay & Micro Commercial Co) Parts 1N3612GP-E3/73, 1N4004-AP, 1N4004-BP, 1N4004-E3/54, 1N4004-E3/73, 1N4004-TP, and 1N4004GP-E3/54 are manufacturer-recommended alternatives. These parts maintain 400 V and 1 A ratings with active product status and ROHS3 compliance. Key distinction: these parts feature standard recovery characteristics (>500ns) rather than fast recovery, resulting in longer reverse recovery times (2 µs typical). Forward voltage specifications range from 1.0 V to 1.1 V @ 1 A, compared to the SF10GG-T at 1.3 V @ 1 A.

Category 3: Automotive-Qualified Alternative Part 1N4004G from Rectron USA is AEC-Q101 qualified with automotive-grade designation. This part maintains 400 V and 1 A ratings with extended operating temperature range (-65°C ~ 175°C) and exceptionally low reverse leakage current (200 nA @ 400 V).

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ 1A	Speed	trr	Ir @ Vr	Package	Status	Inventory
SF10GG-T	Diodes Inc.	400 V	1 A	1.3 V	Fast Recovery ≤ 500ns	40 ns	10 µA @ 400V	DO-41	Obsolete	865 Pcs
PR1004G-T	Diodes Inc.	400 V	1 A	1.3 V	Fast Recovery ≤ 500ns	150 ns	5 µA @ 400V	DO-41	Active	977 Pcs
UF1004-T	Diodes Inc.	400 V	1 A	1.3 V	Fast Recovery ≤ 500ns	50 ns	5 µA @ 400V	DO-41	Active	5220 Pcs
1N3612GP-E3/73	Vishay	400 V	1 A	1.0 V	Standard Recovery >500ns	2 µs	1 µA @ 400V	DO-204AL (DO-41)	Active	638 Pcs
1N4004-AP	Micro Commercial Co	400 V	1 A	1.0 V	Standard Recovery >500ns	2 µs	5 µA @ 400V	DO-41	Active	8750 Pcs
1N4004-BP	Micro Commercial Co	400 V	1 A	1.0 V	Standard Recovery >500ns	2 µs	5 µA @ 400V	DO-41	Active	734 Pcs
1N4004-E3/54	Vishay	400 V	1 A	1.1 V	Standard Recovery >500ns	Not specified	5 µA @ 400V	DO-204AL (DO-41)	Active	1656 Pcs
1N4004-E3/73	Vishay	400 V	1 A	1.1 V	Standard Recovery >500ns	Not specified	5 µA @ 400V	DO-204AL (DO-41)	Active	1215 Pcs
1N4004-TP	Micro Commercial Co	400 V	1 A	1.1 V	Standard Recovery >500ns	2 µs	5 µA @ 400V	DO-41	Active	2467 Pcs
1N4004G	Rectron USA	400 V	1 A	1.0 V	Standard Recovery >500ns	Not specified	200 nA @ 400V	DO-41	Active	10300 Pcs
1N4004GP-E3/54	Vishay	400 V	1 A	1.1 V	Standard Recovery >500ns	2 µs	5 µA @ 400V	DO-204AL (DO-41)	Active	40609 Pcs

Engineering Selection Recommendations

For Direct Replacement with Maintained Fast Recovery Performance:

UF1004-T is the primary recommendation for applications requiring fast recovery characteristics equivalent to the SF10GG-T. This part maintains the 400 V / 1 A rating, fast recovery speed classification (≤ 500ns), and active product status. The 50 ns reverse recovery time is superior to the SF10GG-T's 40 ns specification, providing enhanced switching performance. UF1004-T offers the highest inventory availability (5220 pieces) and is supplied in Cut Tape packaging. ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) are maintained.

PR1004G-T provides an alternative fast recovery option from Diodes Incorporated with 150 ns reverse recovery time and Tape & Reel packaging. Both UF1004-T and PR1004G-T are ROHS3 compliant and REACH unaffected.

For Standard Recovery Applications:

When fast recovery performance is not a circuit requirement, standard recovery alternatives provide extended product lifecycle support. The 1N4004 series (variants: 1N4004-AP, 1N4004-BP, 1N4004-E3/54, 1N4004-E3/73, 1N4004-TP, 1N4004GP-E3/54) and 1N3612GP-E3/73 maintain 400 V / 1 A ratings with active product status and ROHS3 compliance. These parts feature 2 µs reverse recovery time and lower forward voltage (1.0 V to 1.1 V @ 1 A) compared to the SF10GG-T.

1N4004GP-E3/54 from Vishay offers the largest inventory (40609 pieces) among standard recovery alternatives, with 8 pF capacitance @ 4V, 1MHz and extended operating temperature range (-65°C ~ 175°C).

For Automotive Applications:

1N4004G from Rectron USA is AEC-Q101 qualified and automotive-grade, suitable for applications requiring automotive component certification. This part features exceptionally low reverse leakage current (200 nA @ 400 V) and extended operating temperature range (-65°C ~ 175°C). Inventory availability is 10300 pieces.

Compliance Considerations:

All recommended substitute parts are ROHS3 compliant. REACH status varies: Diodes Incorporated parts (PR1004G-T, UF1004-T) are REACH unaffected; Vishay and Micro Commercial Co parts are REACH unaffected; Rectron USA 1N4004G REACH status is available upon request. All parts carry EAR99 ECCN classification and 8541.10.0080 HTSUS code.

Frequently Asked Questions (FAQ)

Q: Can UF1004-T directly replace SF10GG-T in existing designs?

A: Yes. UF1004-T maintains identical voltage (400 V) and current (1 A) ratings, through-hole DO-41 mounting, and fast recovery speed classification (≤ 500ns). The 50 ns reverse recovery time meets or exceeds the SF10GG-T's 40 ns specification. Both are ROHS3 compliant with unlimited moisture sensitivity level. Physical package dimensions are compatible.

Q: What is the primary difference between fast recovery and standard recovery alternatives?

A: Fast recovery diodes (SF10GG-T, PR1004G-T, UF1004-T) have reverse recovery times ≤ 500ns (40-150 ns typical), enabling rapid switching suitable for high-frequency power supplies and switching regulators. Standard recovery diodes (1N4004 series, 1N3612GP-E3/73) have reverse recovery times >500ns (2 µs typical), suitable for lower-frequency rectification applications. Standard recovery parts typically exhibit lower forward voltage (1.0-1.1 V vs. 1.3 V) and lower reverse leakage current.

Q: Are all substitute parts available in the same packaging as SF10GG-T?

A: SF10GG-T is supplied in bulk packaging (no specific tape/reel designation provided). Substitute parts are available in multiple packaging formats: Cut Tape (CT), Tape & Reel (TR), Tape & Box (TB), and Bulk. Physical package case (DO-204AL, DO-41, Axial) is identical across all alternatives. Packaging format selection depends on procurement and assembly requirements.

Q: Which substitute part has the lowest reverse leakage current?

A: 1N3612GP-E3/73 from Vishay exhibits the lowest reverse leakage current at 1 µA @ 400 V, followed by 1N4004G at 200 nA @ 400 V. The SF10GG-T specifies 10 µA @ 400 V. Lower reverse leakage current reduces standby power consumption in applications with sustained reverse bias conditions.

Q: Is 1N4004G suitable for automotive applications?

A: Yes. 1N4004G is AEC-Q101 qualified and designated as automotive-grade. This part is suitable for automotive circuit applications requiring component qualification to automotive standards. It maintains 400 V / 1 A ratings with extended operating temperature range (-65°C ~ 175°C) and exceptionally low reverse leakage current (200 nA @ 400 V).

Q: What is the inventory status of substitute parts?

A: UF1004-T offers the highest inventory availability at 5220 pieces. 1N4004GP-E3/54 provides 40609 pieces. 1N4004G provides 10300 pieces. 1N4004-AP provides 8750 pieces. All recommended alternatives maintain active product status with established supply chains.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts are ROHS3 compliant. REACH status is unaffected for Diodes Incorporated, Vishay, and Micro Commercial Co parts. Rectron USA 1N4004G REACH status is available upon request.

Q: Can standard recovery diodes (1N4004 series) replace fast recovery diodes (SF10GG-T) in switching applications?

A: Standard recovery diodes are not recommended for high-frequency switching applications where fast recovery performance is required. The 2 µs reverse recovery time of 1N4004 series parts is significantly longer than the 40-50 ns of fast recovery alternatives, potentially causing switching losses and reduced efficiency. Standard recovery diodes are suitable for lower-frequency rectification applications (power supplies, battery chargers) where switching speed is not critical.

Q: What is the operating temperature range difference between substitute parts?

A: SF10GG-T specifies -65°C ~ 150°C. Most substitute parts maintain this range. 1N3612GP-E3/73 and 1N4004G extend the upper limit to 175°C. 1N4004-AP and 1N4004-BP reduce the lower limit to -55°C. Temperature range selection depends on application environment and thermal management requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message