DF08S1 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF08S1 is a single-phase bridge rectifier manufactured by onsemi, rated for 800 V peak reverse voltage and 1 A average rectified current. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent substitute parts is necessary for ongoing production support, maintenance applications, and legacy system repairs where the original part is no longer readily available or where design flexibility permits component substitution.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
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	3 µA @ 800 V
Operating Temperature Range	-55°C to 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DF08S1 are qualified based on strict electrical and mechanical parameter matching:

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
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

All substitute parts listed maintain these core electrical specifications. Variations in reverse leakage current (ranging from 2 µA to 10 µA @ 800 V) remain within acceptable operational limits for single-phase bridge rectifier applications. Packaging designations differ by manufacturer (4-SDIP, 4-MicroDIP/SMD, ABS, DB-S, DBLS, DFS) but all conform to the 4-SMD, Gull Wing physical form factor required for PCB compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Ir @ Vr	Temp Range	Product Status	RoHS
DF08S1	onsemi	800 V	1 A	1.1 V @ 1 A	3 µA @ 800 V	-55°C to 150°C	Not For New Designs	ROHS3
MDB8S	onsemi	800 V	1 A	1.1 V @ 1 A	10 µA @ 800 V	-55°C to 150°C	Not For New Designs	ROHS3
ABS8-HF	Comchip Technology	800 V	1 A	1.1 V @ 1 A	5 µA @ 800 V	-55°C to 150°C	Active	ROHS3
ABS8U	SMC Diode Solutions	800 V	1 A	1.1 V @ 1 A	5 µA @ 800 V	-55°C to 150°C	Active	ROHS3
B108S_R2_00001	Panjit International Inc.	800 V	1 A	1.1 V @ 1 A	5 µA @ 800 V	-55°C to 150°C	Active	ROHS3
DB106S	SMC Diode Solutions	800 V	1 A	1.1 V @ 1 A	5 µA @ 800 V	-55°C to 150°C	Active	ROHS3
DBLS106G	Taiwan Semiconductor Corporation	800 V	1 A	1.1 V @ 1 A	2 µA @ 800 V	-55°C to 150°C	Active	ROHS3
DBLS106GH	Taiwan Semiconductor Corporation	800 V	1 A	1.1 V @ 1 A	2 µA @ 800 V	-55°C to 150°C	Active	ROHS3
DF08S-E3/77	Vishay General Semiconductor - Diodes Division	800 V	1 A	1.1 V @ 1 A	5 µA @ 800 V	-55°C to 150°C	Active	ROHS3
DF08S-E3/I	Vishay General Semiconductor - Diodes Division	800 V	1 A	1.1 V @ 1 A	5 µA @ 800 V	-55°C to 150°C	Active	ROHS3
DF08SA-E3/77	Vishay General Semiconductor - Diodes Division	800 V	1 A	1.1 V @ 1 A	5 µA @ 800 V	-55°C to 150°C	Active	ROHS3

Engineering Selection Recommendations

For Legacy System Support: Parts with Active product status are preferred for ongoing production and long-term availability. ABS8-HF, ABS8U, B108S_R2_00001, DB106S, DBLS106G, DBLS106GH, DF08S-E3/77, DF08S-E3/I, and DF08SA-E3/77 all carry Active status and are suitable for replacement applications.

For Automotive Applications: DBLS106GH is qualified to AEC-Q101 automotive standard and carries automotive-grade designation. This part is appropriate for automotive or mission-critical applications requiring automotive qualification.

For Standard Industrial Applications: All listed substitutes meet ROHS3 compliance and maintain identical electrical specifications. Selection may be based on supplier availability, packaging preference, or inventory status.

Regarding End-of-Life Parts: MDB8S and the original DF08S1 both carry "Not For New Designs" status. While MDB8S is electrically equivalent, active-status alternatives are recommended for new production to ensure long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for DF08S1?

A: Yes. All listed substitute parts maintain the same peak reverse voltage (800 V), average rectified current (1 A), forward voltage (1.1 V @ 1 A), and operating temperature range (-55°C to 150°C). All are surface-mount components with 4-SMD, Gull Wing package configuration. Reverse leakage current variations (2 µA to 10 µA @ 800 V) are within acceptable operational limits for bridge rectifier applications.

Q: What is the difference between the various package designations (4-SDIP, 4-MicroDIP/SMD, ABS, DB-S, DBLS, DFS)?

A: These designations represent manufacturer-specific package naming conventions. All conform to the same 4-SMD, Gull Wing physical form factor and are mechanically and electrically compatible for PCB mounting. Package designation differences do not affect electrical performance or PCB layout compatibility.

Q: Why is DBLS106GH listed separately from DBLS106G?

A: DBLS106GH carries automotive-grade qualification (AEC-Q101) and is designated for automotive applications. DBLS106G is the standard industrial version. Both maintain identical electrical specifications and physical form factors. Selection depends on application requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status, matching the original DF08S1 specification.

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

A: DBLS106G and DBLS106GH both specify 2 µA @ 800 V reverse leakage current, which is lower than the original DF08S1 specification of 3 µA @ 800 V. This represents improved performance characteristics.

Q: Should I prioritize Active-status parts over Not For New Designs parts?

A: For new production and long-term applications, Active-status parts are recommended to ensure sustained supplier availability and production continuity. Not For New Designs parts may face supply constraints as manufacturers phase out production.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message