Equivalent & Substitute Parts for S07B-GS08

Part Overview

The S07B-GS08 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 100 V DC reverse voltage and 700 mA average rectified current in a surface mount DO-219AB package. This part is classified as Active and carries AEC-Q101 automotive qualification. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, manufacturing discontinuation, or design flexibility needs.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	700	mA
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Package / Case	DO-219AB	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-
AEC-Q101 Qualification	Yes	-

Substitute Part Grouping Explanation

Substitute parts for the S07B-GS08 are categorized based on electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Parametric Equivalents (Identical Electrical Performance):

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 700 mA
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
Reverse Recovery Time (trr): 1.8 µs
Current - Reverse Leakage @ Vr: 10 µA @ 100 V
Package / Case: DO-219AB
Mounting Type: Surface Mount

Manufacturer Recommended Alternatives (Functional Equivalents with Package Variation):

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 1 A (higher rating)
Voltage - Forward (Vf) (Max) @ If: 1.0 to 1.1 V @ 1 A
Package / Case: SOD-123F (different package)
Mounting Type: Surface Mount

Parts meeting identical electrical specifications within the DO-219AB package are direct substitutes. Parts with higher current ratings or different packages are functional alternatives suitable for applications where the original package is not a constraint.

Parameter Comparison

Parameter	S07B-GS08	S1FLB-GS08	S1FLB-M-08	SM4002PL-TP	UFM12PL-TP
Manufacturer	Vishay	Vishay	Vishay	Micro Commercial Co	Micro Commercial Co
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	700 mA	700 mA	700 mA	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1 V @ 1 A
Reverse Recovery Time (trr)	1.8 µs	1.8 µs	1.8 µs	Not Specified	35 ns
Current - Reverse Leakage @ Vr	10 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V	5 µA @ 100 V	10 µA @ 100 V
Package / Case	DO-219AB	DO-219AB	DO-219AB	SOD-123F	SOD-123F
Packaging Type	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Product Status	Active	Active	Active	Not For New Designs	Not For New Designs
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 150°C	-65 to 175°C	-65 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q101 Qualification	Yes	Not Specified	Not Specified	Not Specified	Not Specified

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical and Mechanical Specifications):

The S1FLB-GS08 and S1FLB-M-08 are parametric equivalents to the S07B-GS08. Both parts maintain identical voltage ratings, current ratings, forward voltage characteristics, and reverse recovery time. All three parts are housed in the DO-219AB surface mount package and operate across the same temperature range. The S1FLB-GS08 and S1FLB-M-08 are classified as Active products and carry ROHS3 compliance. These parts are suitable for direct substitution in applications where the S07B-GS08 is specified.

Functional Alternatives (Higher Current Rating, Different Package):

The SM4002PL-TP and UFM12PL-TP are manufacturer-recommended alternatives rated for 1 A average rectified current, exceeding the 700 mA specification of the S07B-GS08. Both parts maintain the 100 V reverse voltage rating and are housed in the SOD-123F surface mount package. The UFM12PL-TP features fast recovery characteristics with a 35 ns reverse recovery time, compared to the 1.8 µs standard recovery of the S07B-GS08. Both alternatives are classified as Not For New Designs and carry ROHS3 compliance. These parts are suitable for applications where package footprint change is acceptable and higher current capacity is beneficial.

Compliance Considerations:

The S07B-GS08 carries AEC-Q101 automotive qualification. The substitute parts S1FLB-GS08 and S1FLB-M-08 do not specify AEC-Q101 qualification in the provided data. Applications requiring automotive-grade components should confirm qualification status with the manufacturer. The SM4002PL-TP and UFM12PL-TP are not recommended for new designs and should be used only in legacy applications or where inventory constraints require their use.

Frequently Asked Questions (FAQ)

Q: Can S1FLB-GS08 or S1FLB-M-08 be used as direct replacements for S07B-GS08?

A: Yes. Both parts are parametric equivalents with identical voltage ratings (100 V), current ratings (700 mA), forward voltage characteristics (1.1 V @ 1 A), and reverse recovery time (1.8 µs). All three parts use the DO-219AB surface mount package. The primary difference is packaging format: S07B-GS08 and S1FLB-M-08 are supplied in Tape & Reel, while S1FLB-GS08 is available in Cut Tape and Digi-Reel formats.

Q: What is the difference between SM4002PL-TP and UFM12PL-TP compared to S07B-GS08?

A: Both SM4002PL-TP and UFM12PL-TP are rated for 1 A average rectified current, compared to 700 mA for the S07B-GS08. Both use the SOD-123F package instead of DO-219AB. The UFM12PL-TP features fast recovery characteristics (35 ns) versus standard recovery (1.8 µs) for the S07B-GS08. Both alternatives are classified as Not For New Designs.

Q: Can I use SM4002PL-TP or UFM12PL-TP in a circuit designed for S07B-GS08?

A: Functional substitution is possible if the circuit board layout accommodates the SOD-123F package footprint. The higher current rating (1 A) of these alternatives provides design margin. However, the different package requires PCB layout modification. The Not For New Designs status indicates these parts are legacy components and should be used only when necessary.

Q: Does the S07B-GS08 have automotive qualification?

A: Yes. The S07B-GS08 carries AEC-Q101 automotive qualification. The substitute parts S1FLB-GS08 and S1FLB-M-08 do not specify AEC-Q101 qualification in the provided specifications. Automotive applications requiring qualified components should confirm qualification status with the manufacturer before substitution.

Q: What is the difference in reverse recovery time between S07B-GS08 and UFM12PL-TP?

A: The S07B-GS08 has a reverse recovery time of 1.8 µs (standard recovery). The UFM12PL-TP has a reverse recovery time of 35 ns (fast recovery). Fast recovery diodes are suitable for high-frequency switching applications. Standard recovery diodes are appropriate for general-purpose rectification. Selection depends on circuit operating frequency and switching requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The S07B-GS08, S1FLB-GS08, S1FLB-M-08, SM4002PL-TP, and UFM12PL-TP are all ROHS3 compliant. All parts carry Moisture Sensitivity Level 1 (Unlimited) and are REACH Unaffected.

Q: What is the inventory status of these parts?

A: S07B-GS08 has 111,100 pieces in stock. S1FLB-GS08 has 3,200 pieces. S1FLB-M-08 has 18,051 pieces. SM4002PL-TP has 12,800 pieces. UFM12PL-TP has 18,600 pieces. Inventory levels are subject to change and should be confirmed with the supplier.

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