SDB102-TP Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The SDB102-TP is a single-phase bridge rectifier diode manufactured by Micro Commercial Co, designed for surface mount applications with a peak reverse voltage rating of 100 V and average rectified current of 1 A. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Organizations currently using SDB102-TP in production or maintenance applications require qualified substitute components that maintain electrical and mechanical compatibility while offering active product status and continued supply availability.

Substiute Parts

SDB102-TP

Micro Commercial CoIn Stock: 998SDB102-TP Datasheet

Current PartRFQ

DF01S1

Fairchild SemiconductorIn Stock: 3009DF01S1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SDB102-TP is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Voltage - Peak Reverse (Max): 100 V
• Current - Average Rectified (Io): 1 A
• Diode Type: Single Phase
• Technology: Standard
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

Acceptable Variations:

• Voltage - Forward (Vf) (Max) @ If: Substitute values must not exceed 1.1 V @ 1 A
• Current - Reverse Leakage @ Vr: Substitute values must not exceed 10 µA @ 100 V

The DF01S1 manufactured by Fairchild Semiconductor meets all critical electrical and mechanical requirements for direct substitution with the SDB102-TP.

Parameter Comparison

Engineering Selection Recommendations

The DF01S1 is the qualified substitute for SDB102-TP based on the following engineering criteria:

Electrical Compatibility: The DF01S1 maintains identical ratings for peak reverse voltage (100 V), average rectified current (1 A), forward voltage drop (1.1 V @ 1 A), and operating temperature range (-55°C to 150°C). The reverse leakage current of 3 µA @ 100 V is superior to the SDB102-TP specification of 10 µA @ 100 V, indicating improved device performance.

Mechanical Compatibility: Both components utilize identical surface mount packaging (4-SMD, Gull Wing), ensuring direct PCB footprint compatibility without layout modifications.

Product Status and Supply: The DF01S1 carries Active product status from Fairchild Semiconductor with 2921 units in stock, providing long-term supply assurance compared to the SDB102-TP's Not For New Designs classification.

Regulatory Compliance: Both components share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, maintaining compliance requirements across supply chain transitions.

Frequently Asked Questions (FAQ)

Q: Can the DF01S1 be used as a direct replacement for SDB102-TP without circuit modifications?

A: Yes. The DF01S1 meets all critical electrical parameters (100 V peak reverse voltage, 1 A average rectified current, 1.1 V forward voltage drop, -55°C to 150°C operating range) and mechanical specifications (4-SMD Gull Wing surface mount package). No circuit design changes are required.

Q: What is the significance of the lower reverse leakage current in the DF01S1?

A: The DF01S1 specifies 3 µA @ 100 V reverse leakage compared to the SDB102-TP's 10 µA @ 100 V. Lower reverse leakage indicates improved device quality and reduced parasitic current paths, which is beneficial for circuit performance but does not create incompatibility.

Q: Are there any package or footprint differences between these components?

A: No. Both the SDB102-TP and DF01S1 use identical 4-SMD Gull Wing surface mount packaging. PCB layouts, solder pad dimensions, and component placement remain unchanged during substitution.

Q: Why is the SDB102-TP classified as "Not For New Designs"?

A: This classification indicates the component has reached end-of-life status and the manufacturer (Micro Commercial Co) is no longer recommending it for new product development. Existing applications may continue using available inventory, but new designs should transition to active alternatives such as the DF01S1.

Q: What compliance certifications apply to both components?

A: Both the SDB102-TP and DF01S1 share identical regulatory classifications: ECCN EAR99 and HTSUS 8541.10.0080. No compliance re-evaluation is required when substituting between these parts.

Q: Is the DF01S1 available in the same packaging format as the SDB102-TP?

A: Yes. The DF01S1 is supplied in 4-SMD Gull Wing surface mount packaging, identical to the SDB102-TP. The supplier device package designation differs (4-SDIP for DF01S1 versus SDB-1 for SDB102-TP), but the physical package and electrical interface are equivalent.