DBL155G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBL155G is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, rated for 600 V peak reverse voltage and 1.5 A average rectified current. This component is designed for through-hole mounting applications requiring standard rectification technology in a 4-DIP package format. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when electrical specifications, mechanical packaging, and operational parameters align with the original component, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

DBL155G

Taiwan Semiconductor CorporationIn Stock: 1144DBL155G Datasheet

Current PartRFQ

DBL155GH

Taiwan Semiconductor CorporationIn Stock: 6044DBL155GH Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DBL155G are identified based on strict parametric equivalence across electrical and mechanical specifications. The substitution criteria include:

Electrical Parameters (Must Match):

• Voltage - Peak Reverse (Max): 600 V
• Current - Average Rectified (Io): 1.5 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1.5 A
• Current - Reverse Leakage @ Vr: 2 µA @ 600 V
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Parameters (Must Match):

• Diode Type: Single Phase
• Technology: Standard
• Mounting Type: Through Hole
• Package / Case: 4-DIP (0.300", 7.62mm)

Compliance Parameters (Must Match or Exceed):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The DBL155GH meets all specified criteria and is classified as a parametric equivalent. Additional qualifications such as AEC-Q101 automotive certification do not disqualify a part from substitution; they represent enhanced qualification levels suitable for extended application ranges.

Parameter Comparison

Engineering Selection Recommendations

Both the DBL155G and DBL155GH are Active products manufactured by Taiwan Semiconductor Corporation with identical electrical and mechanical specifications. Selection between these parts is based on application requirements and supply chain considerations:

DBL155G is suitable for general industrial and commercial applications requiring standard bridge rectification at 600 V and 1.5 A ratings. The part maintains full RoHS3 compliance and unlimited moisture sensitivity rating, appropriate for standard operating environments.

DBL155GH provides the same electrical and mechanical performance with additional AEC-Q101 automotive qualification. This certification indicates enhanced reliability testing and process controls suitable for automotive and mission-critical applications. The DBL155GH is appropriate when automotive-grade reliability is specified or when extended operational assurance is required.

Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding. Inventory availability and lead time considerations may influence selection, with DBL155GH currently showing higher stock levels (5958 Pcs versus 1044 Pcs for DBL155G).

Frequently Asked Questions (FAQ)

Q: Can DBL155GH replace DBL155G in existing circuit designs?

A: Yes. The DBL155GH is a parametric equivalent with identical electrical ratings (600 V peak reverse, 1.5 A average rectified current), forward voltage characteristics, reverse leakage specifications, and operating temperature range. The 4-DIP through-hole package dimensions are identical, enabling direct pin-compatible substitution without circuit modification.

Q: What is the difference between DBL155G and DBL155GH?

A: The primary difference is qualification level. The DBL155GH carries AEC-Q101 automotive qualification, indicating enhanced reliability testing and process controls. Electrical and mechanical specifications are identical. The DBL155GH is suitable for applications requiring automotive-grade components or extended operational assurance.

Q: Are both parts RoHS3 compliant?

A: Yes. Both DBL155G and DBL155GH are ROHS3 compliant with MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: What is the 4-DIP package dimension?

A: The 4-DIP package measures 0.300 inches (7.62 mm) in width. Both parts use identical through-hole mounting configuration suitable for standard PCB assembly processes.

Q: Can these parts be used interchangeably in automotive applications?

A: The DBL155GH is specifically qualified for automotive applications under AEC-Q101 standard. The DBL155G lacks this automotive qualification. For automotive applications, DBL155GH is the appropriate selection.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution eligibility is determined by matching voltage ratings (600 V peak reverse), current ratings (1.5 A average rectified), forward voltage characteristics (1.1 V @ 1.5 A), reverse leakage specifications (2 µA @ 600 V), and operating temperature range (-55°C to 150°C). All parameters must match exactly for direct substitution.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts share identical compliance status: ROHS3 compliant, REACH unaffected, EAR99 classification, and 8541.10.0080 HTSUS coding. No regulatory or compliance differences exist between the two parts.