DF08S-E3/I Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF08S-E3/I is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division, rated for 800 V peak reverse voltage and 1 A average rectified current. This component is classified as Active product status and is supplied in Tape & Reel packaging with a 4-SMD, Gull Wing package configuration. Bridge rectifiers in this specification class are essential for AC-to-DC conversion applications requiring moderate voltage and current ratings. Equivalent and substitute parts are identified based on matching electrical performance parameters and compatible mechanical packaging to ensure functional interchangeability in circuit designs.

Key Parameters

Parameter	Value	Unit
Voltage - Peak Reverse (Max)	800	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Current - Reverse Leakage @ Vr	5	µA @ 800 V
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	4-SMD, Gull Wing	—
Diode Type	Single Phase	—
Technology	Standard	—

Substitute Part Grouping Explanation

Substitute parts for the DF08S-E3/I are qualified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

Voltage - Peak Reverse (Max): 800 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
Current - Reverse Leakage @ Vr: 5 µA @ 800 V (or lower)
Operating Temperature Range: -55°C to 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: 4-SMD, Gull Wing
Diode Type: Single Phase
Technology: Standard

Parts are grouped into two categories: parametric equivalents with identical electrical specifications and packaging, and functional equivalents with compatible electrical performance within the specified tolerance ranges. All substitute parts maintain the same base electrical ratings and thermal operating range, ensuring direct functional replacement in existing circuit designs.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Ir @ Vr [µA]	Tj Range [°C]	Package	Product Status	Packaging Type
DF08S-E3/I	Vishay General Semiconductor - Diodes Division	800	1	1.1 @ 1 A	5 @ 800 V	-55 to 150	4-SMD, Gull Wing	Active	Tape & Reel (TR)
DF08S-E3/77	Vishay General Semiconductor - Diodes Division	800	1	1.1 @ 1 A	5 @ 800 V	-55 to 150	4-SMD, Gull Wing	Active	Cut Tape (CT) & Digi-Reel®
DF08SA-E3/77	Vishay General Semiconductor - Diodes Division	800	1	1.1 @ 1 A	5 @ 800 V	-55 to 150	4-SMD, Gull Wing	Active	Cut Tape (CT) & Digi-Reel®
B108S_R2_00001	Panjit International Inc.	800	1	1.1 @ 1 A	5 @ 800 V	-55 to 150	4-SMD, Gull Wing	Active	Tape & Reel (TR)
DBLS106G	Taiwan Semiconductor Corporation	800	1	1.1 @ 1 A	2 @ 800 V	-55 to 150	4-SMD, Gull Wing	Active	Tape & Reel (TR)
DBLS106GH	Taiwan Semiconductor Corporation	800	1	1.1 @ 1 A	2 @ 800 V	-55 to 150	4-SMD, Gull Wing	Active	Tape & Reel (TR)
DF08S1	onsemi	800	1	1.1 @ 1 A	3 @ 800 V	-55 to 150	4-SMD, Gull Wing	Not For New Designs	Tape & Reel (TR)
DI108S_R2_00001	Panjit International Inc.	800	1	1.1 @ 1 A	5 @ 800 V	-55 to 150	4-SMD, Gull Wing	Active	Tape & Reel (TR)
MDB8S	onsemi	800	1	1.1 @ 1 A	10 @ 800 V	-55 to 150	4-SMD, Gull Wing	Not For New Designs	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Primary Recommendation - Active Status Parts:

DF08S-E3/77, DF08SA-E3/77, B108S_R2_00001, DBLS106G, DBLS106GH, and DI108S_R2_00001 are all classified as Active product status and are suitable for new designs. These parts maintain identical or superior electrical specifications compared to the DF08S-E3/I. The primary distinction among these options is packaging format: DF08S-E3/77 and DF08SA-E3/77 are supplied in Cut Tape & Digi-Reel format, while B108S_R2_00001, DBLS106G, DBLS106GH, and DI108S_R2_00001 are supplied in Tape & Reel format.

DBLS106GH includes AEC-Q101 automotive qualification, making it suitable for automotive applications requiring this certification level.

Secondary Recommendation - Legacy Status Parts:

DF08S1 and MDB8S are classified as Not For New Designs. These parts remain functionally compatible with the DF08S-E3/I but should not be selected for new circuit designs. They are available for legacy system maintenance and repair applications only.

Frequently Asked Questions (FAQ)

Q: Can DF08S-E3/77 directly replace DF08S-E3/I in existing designs?

A: Yes. DF08S-E3/77 is a parametric equivalent with identical electrical specifications (800 V, 1 A, 1.1 V forward voltage, 5 µA reverse leakage, -55°C to 150°C operating range) and the same 4-SMD Gull Wing package. The only difference is packaging format: DF08S-E3/77 is supplied in Cut Tape & Digi-Reel format instead of Tape & Reel. Both are Active status parts suitable for new designs.

Q: What is the difference between DBLS106G and DBLS106GH?

A: Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications. DBLS106GH includes AEC-Q101 automotive qualification and is designated for automotive applications. DBLS106G is the standard industrial version. Both have lower reverse leakage (2 µA) compared to the DF08S-E3/I (5 µA), which represents improved performance.

Q: Are DF08S1 and MDB8S suitable for new product designs?

A: No. Both DF08S1 and MDB8S are classified as Not For New Designs. These parts are available for legacy system support and repair only. For new designs, select from the Active status alternatives: DF08S-E3/77, DF08SA-E3/77, B108S_R2_00001, DBLS106G, DBLS106GH, or DI108S_R2_00001.

Q: Does reverse leakage variation affect substitution compatibility?

A: All substitute parts meet or exceed the DF08S-E3/I specification of 5 µA maximum reverse leakage at 800 V. DBLS106G and DBLS106GH feature 2 µA reverse leakage, representing superior performance. DF08S1 has 3 µA, and MDB8S has 10 µA. Lower reverse leakage improves efficiency and reduces heat generation in rectification circuits.

Q: What packaging considerations apply when selecting substitutes?

A: The DF08S-E3/I is supplied in Tape & Reel format. Substitute parts are available in two packaging formats: Tape & Reel (DF08S-E3/I, B108S_R2_00001, DBLS106G, DBLS106GH, DF08S1, DI108S_R2_00001) and Cut Tape & Digi-Reel (DF08S-E3/77, DF08SA-E3/77, MDB8S). Packaging format selection depends on assembly equipment compatibility and procurement requirements. All parts use the same 4-SMD Gull Wing surface mount package.

Q: Can parts with different manufacturers be mixed in production?

A: Yes. All substitute parts maintain identical electrical specifications and the same surface mount package configuration. However, component procurement and quality assurance procedures should account for manufacturer-specific documentation, lead times, and supply chain considerations. Vishay, onsemi, Panjit International, and Taiwan Semiconductor Corporation are all established semiconductor manufacturers with established quality standards.

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