ABS15M Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The ABS15M is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, rated for 1 kV peak reverse voltage and 1.5 A average rectified current. This surface mount diode is designed for standard rectification applications requiring compact form factors and reliable performance across industrial temperature ranges. The part is ROHS3 compliant and carries an active product status with substantial inventory availability. Equivalent and substitute parts are identified to support procurement flexibility, design redundancy, and supply chain continuity when the primary part becomes unavailable or when design specifications permit higher current ratings or enhanced performance characteristics.

Key Parameters

Parameter	Value	Unit
Diode Type	Single Phase	—
Voltage - Peak Reverse (Max)	1	kV
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 1.5 A
Current - Reverse Leakage @ Vr	5	µA @ 1000 V
Operating Temperature Range	-55 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

Substitution eligibility for the ABS15M is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Diode Type: Single Phase (required match)
Voltage - Peak Reverse (Max): 1 kV (required match)
Mounting Type: Surface Mount (required match)
Package / Case: 4-SMD, Gull Wing (required match)
RoHS Status: ROHS3 Compliant (required match)

Secondary Substitution Criteria (allowable variance):

Current - Average Rectified (Io): Equal to or greater than 1.5 A
Voltage - Forward (Vf) (Max) @ If: Equal to or less than 1 V @ rated current
Current - Reverse Leakage @ Vr: Equal to or less than 5 µA @ 1000 V
Operating Temperature Range: Must encompass or equal -55°C to 150°C minimum

All identified substitute parts meet the primary criteria and fall within acceptable variance for secondary criteria. Parts are grouped by manufacturer and specific performance characteristics to facilitate engineering selection based on application requirements and supply availability.

Parameter Comparison

Parameter	ABS15M (Taiwan Semiconductor)	ABS15M (Diotec Semiconductor)	ABS15MH (Taiwan Semiconductor)	DB157S (MDD)
Manufacturer	Taiwan Semiconductor Corporation	Diotec Semiconductor	Taiwan Semiconductor Corporation	MDD
Diode Type	Single Phase	Single Phase	Single Phase	Single Phase
Voltage - Peak Reverse (Max)	1 kV	1 kV	1 kV	1 kV
Current - Average Rectified (Io)	1.5 A	2 A	1.5 A	1.5 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 1.5 A	1.1 V @ 2 A	1 V @ 1.5 A	1 V @ 1.5 A
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	5 µA @ 1000 V	5 µA @ 1000 V	1 µA @ 1000 V
Operating Temperature Range	-55°C to 150°C	-50°C to 150°C	-55°C to 150°C	-55°C to 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

ABS15M (Diotec Semiconductor): This substitute offers a higher current rating of 2 A, providing increased thermal margin and design headroom for applications operating near the 1.5 A limit. The forward voltage is marginally higher at 1.1 V compared to 1 V, resulting in slightly increased power dissipation. The operating temperature minimum is -50°C, which is 5°C higher than the primary part. This substitute is suitable for applications where current capacity enhancement is beneficial and the reduced low-temperature performance is acceptable. ROHS3 compliance and active product status confirm regulatory alignment and supply continuity.

ABS15MH (Taiwan Semiconductor Corporation): This substitute is electrically and thermally identical to the primary ABS15M part, with identical voltage, current, and temperature specifications. The ABS15MH carries automotive-grade qualification (AEC-Q101) and is manufactured by the same supplier as the primary part. This substitute is appropriate for applications requiring automotive-grade reliability or when AEC-Q101 certification is mandated by design specifications. Inventory availability and ROHS3 compliance support procurement flexibility.

DB157S (MDD): This substitute demonstrates superior reverse leakage performance at 1 µA compared to 5 µA in the primary part, indicating lower leakage current and potentially improved efficiency in low-current standby conditions. Electrical ratings for voltage and current are identical to the primary part. The DB157S is manufactured by MDD and carries ROHS3 compliance with active product status. This substitute is suitable for applications where minimized reverse leakage is a design requirement or where MDD component qualification is established.

All substitute parts maintain identical package geometry (4-SMD, Gull Wing) and mounting type (Surface Mount), ensuring direct PCB compatibility without layout modifications. Selection among substitutes should be based on specific application requirements regarding current capacity, leakage performance, temperature range, and supplier qualification status.

Frequently Asked Questions (FAQ)

Q: Can the ABS15M (Diotec Semiconductor) be used as a direct replacement for the ABS15M (Taiwan Semiconductor Corporation)?

A: The Diotec part is electrically compatible for applications operating below 1.5 A. The higher 2 A current rating provides design margin. However, the operating temperature minimum of -50°C is 5°C higher than the primary part. Substitution is valid only if the application does not require operation below -50°C.

Q: What is the primary advantage of the ABS15MH over the standard ABS15M?

A: The ABS15MH carries AEC-Q101 automotive-grade qualification, indicating enhanced reliability testing and traceability requirements. Electrical performance is identical. Selection of ABS15MH is required for automotive applications or designs with automotive-grade component specifications.

Q: How does the DB157S differ in performance from the primary ABS15M?

A: The DB157S exhibits lower reverse leakage current at 1 µA versus 5 µA in the primary part. All other electrical parameters are identical. The lower leakage characteristic benefits applications sensitive to standby current or requiring extended battery life.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts use 4-SMD, Gull Wing surface mount packaging with identical pin configuration and PCB footprint compatibility. No layout modifications are required for substitution.

Q: Do all parts meet the same regulatory compliance standards?

A: All parts listed are ROHS3 compliant and carry active product status. The ABS15MH additionally carries AEC-Q101 automotive qualification. REACH status is unaffected for all parts.

Q: What is the moisture sensitivity level for all substitute parts?

A: The primary ABS15M and ABS15MH both carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The Diotec ABS15M lists MSL as Not Applicable. The DB157S carries MSL 1 (Unlimited). All parts support standard handling and storage procedures.

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

A: All parts support the full -55°C to 150°C operating range except the Diotec ABS15M, which operates from -50°C to 150°C. For applications requiring operation below -50°C, the Diotec part is not suitable. The primary ABS15M, ABS15MH, and DB157S all support the full temperature range.

Q: Which substitute offers the best performance for low-leakage applications?

A: The DB157S provides the lowest reverse leakage at 1 µA @ 1000 V, compared to 5 µA in other parts. This characteristic is beneficial for applications requiring minimal standby current or extended battery operation.

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