SBS34H Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The SBS34H is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications. This component is rated for 40 V peak reverse voltage with 3 A average rectified current and operates across the temperature range of -55°C to 150°C. The part is classified as Active product status and carries automotive-grade qualification under AEC-Q101 standards.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category. Identification of alternative components ensures design flexibility, supply chain continuity, and component availability for manufacturing and repair operations.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Voltage - Peak Reverse (Max)	40 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 3 A
Current - Reverse Leakage @ Vr	500 µA @ 40 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SBS34H bridge rectifier are identified based on strict equivalence across the following critical parameters:

Diode Type: Single Phase configuration
Voltage - Peak Reverse (Max): 40 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 500 mV @ 3 A
Current - Reverse Leakage @ Vr: 500 µA @ 40 V
Operating Temperature Range: -55°C ~ 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: 4-SMD, Gull Wing
Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parts meeting all specified parameters are classified as parametric equivalents and direct substitutes for the SBS34H.

Parameter Comparison

Parameter	SBS34H	SBS34
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Category	Diodes	Diodes
Diode Type	Single Phase	Single Phase
Technology	Standard	Standard
Voltage - Peak Reverse (Max)	40 V	40 V
Current - Average Rectified (Io)	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 3 A	500 mV @ 3 A
Current - Reverse Leakage @ Vr	500 µA @ 40 V	500 µA @ 40 V
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Package / Case	4-SMD, Gull Wing	4-SMD, Gull Wing
Supplier Device Package	ABS	ABS
Grade	Automotive	Not specified
Qualification	AEC-Q101	Not specified
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.10.0080	8541.10.0080

Engineering Selection Recommendations

The SBS34H and SBS34 bridge rectifiers are parametric equivalents across all specified electrical and mechanical parameters. Both components are manufactured by Taiwan Semiconductor Corporation and maintain identical ratings for voltage, current, temperature range, and package configuration.

The SBS34H carries explicit automotive-grade designation and AEC-Q101 qualification, which are critical for applications requiring automotive compliance. The SBS34 does not specify these qualifications in the provided data.

For applications requiring automotive-grade components with AEC-Q101 qualification, the SBS34H is the specified selection. For general industrial and commercial applications where automotive qualification is not required, the SBS34 provides equivalent electrical performance with higher inventory availability (11,400 units versus 846 units).

Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080.

Frequently Asked Questions (FAQ)

Q: Can the SBS34 be used as a direct replacement for the SBS34H in automotive applications?

A: The SBS34 and SBS34H are electrically and mechanically equivalent across all specified parameters. However, the SBS34H carries explicit AEC-Q101 automotive qualification. Applications requiring automotive-grade components should specify the SBS34H to ensure compliance with automotive qualification standards.

Q: What are the critical parameters that define substitutability for the SBS34H?

A: Substitutability is determined by equivalence across diode type (single phase), voltage rating (40 V peak reverse), current rating (3 A average rectified), forward voltage drop (500 mV @ 3 A), reverse leakage current (500 µA @ 40 V), operating temperature range (-55°C to 150°C), mounting type (surface mount), and package configuration (4-SMD, Gull Wing ABS).

Q: Are there differences in packaging between the SBS34H and SBS34?

A: Both components use identical packaging: 4-SMD, Gull Wing configuration with ABS supplier device package designation. Both are supplied in Tape & Reel format.

Q: What is the moisture sensitivity level for these bridge rectifiers?

A: Both the SBS34H and SBS34 are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: Are these components RoHS compliant?

A: Yes, both the SBS34H and SBS34 are ROHS3 compliant and REACH unaffected.

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