DBL158G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBL158G is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, rated for 1.2 kV peak reverse voltage and 1.5 A average rectified current. This component operates across a temperature range of -55°C to 150°C and is housed in a 4-DIP through-hole package. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance are maintained across the specified parameter set. Alternative components may be required due to inventory availability, supply chain considerations, or application-specific qualification requirements.

Substiute Parts

DBL158G

Taiwan Semiconductor CorporationIn Stock: 912DBL158G Datasheet

Current PartRFQ

DBL158GH

Taiwan Semiconductor CorporationIn Stock: 5718DBL158GH Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DBL158G is determined by strict equivalence across the following critical parameters:

• Voltage Rating: Peak reverse voltage must equal 1.2 kV
• Current Rating: Average rectified current must equal 1.5 A
• Forward Voltage Characteristics: Maximum forward voltage must equal 1.25 V at 1.5 A
• Reverse Leakage: Maximum reverse leakage must equal 2 µA at 1200 V
• Temperature Range: Operating temperature range must span -55°C to 150°C
• Package Configuration: 4-DIP through-hole package with 0.300" (7.62mm) spacing
• Diode Type: Single-phase bridge rectifier topology
• Technology: Standard rectifier technology

The DBL158GH meets all substitution criteria as a parametric equivalent. Both parts share identical electrical specifications, package geometry, and regulatory compliance status. The DBL158GH includes automotive-grade qualification (AEC-Q101) and is designated for automotive applications, representing an enhanced variant suitable for environments requiring automotive-level reliability.

Parameter Comparison

Engineering Selection Recommendations

DBL158G is the baseline standard-grade single-phase bridge rectifier for general industrial and commercial applications. The part is Active, RoHS3 compliant, and maintains full regulatory compliance under REACH and EAR99 classifications.

DBL158GH is the automotive-qualified variant of the DBL158G, carrying AEC-Q101 certification. This part is suitable for automotive and mission-critical applications where enhanced reliability qualification is required. The DBL158GH maintains identical electrical and mechanical specifications to the DBL158G while meeting automotive industry standards.

Selection between these parts depends on application requirements:

• Use DBL158G for standard industrial rectification circuits where automotive qualification is not mandated
• Use DBL158GH for automotive applications, safety-critical systems, or environments requiring AEC-Q101 compliance

Both parts are Active products with unlimited moisture sensitivity rating, ensuring compatibility with standard PCB assembly and storage conditions. Inventory availability differs between variants, with DBL158GH maintaining higher stock levels (5648 pcs vs. 873 pcs).

Frequently Asked Questions (FAQ)

Q: Can DBL158GH be used as a direct replacement for DBL158G?

A: Yes. The DBL158GH is a parametric equivalent with identical electrical ratings (1.2 kV, 1.5 A), forward voltage characteristics (1.25 V @ 1.5 A), reverse leakage (2 µA @ 1200 V), and operating temperature range (-55°C to 150°C). Both use the same 4-DIP through-hole package. The DBL158GH includes automotive-grade qualification (AEC-Q101) as an additional feature.

Q: Can DBL158G be used in place of DBL158GH?

A: Substitution is possible from an electrical and mechanical standpoint, as both parts share identical parametric specifications. However, if the application requires AEC-Q101 automotive qualification, the DBL158G does not meet this requirement. Application-specific qualification mandates must be evaluated.

Q: Are there any package compatibility concerns?

A: No. Both parts use the identical 4-DIP through-hole package with 0.300" (7.62mm) spacing. PCB footprints, lead spacing, and mounting procedures are identical.

Q: What is the significance of the automotive grade designation on DBL158GH?

A: The automotive grade and AEC-Q101 qualification indicate that DBL158GH has undergone additional reliability testing and qualification processes required by automotive industry standards. This designation does not change electrical performance but confirms suitability for automotive applications and environments with enhanced reliability requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both DBL158G and DBL158GH are RoHS3 compliant with REACH Unaffected status and unlimited moisture sensitivity rating (MSL 1).

Q: What is the difference in inventory availability?

A: DBL158G has 873 pcs in stock, while DBL158GH has 5648 pcs in stock. Higher availability of the automotive-qualified variant may influence supply chain decisions.

Q: Do both parts operate across the same temperature range?

A: Yes. Both parts operate from -55°C to 150°C (TJ), providing identical thermal performance specifications.