BD746A-S Equivalent & Substitute Parts Reference

Part Overview

The BD746A-S, manufactured by Bourns Inc., is a PNP bipolar junction transistor (BJT) with a maximum collector current of 20 A and a collector-emitter voltage of 60 V. This component falls within the Transistors, Bipolar (BJT) category, features a SOT-93 (TO-218-3) package, and is designed for through-hole mounting. The product is classified as obsolete, requiring existing designs and maintenance activities to source equivalent or substitute components with matching key electrical and mechanical parameters.

Substiute Parts

BD746A-S

Bourns Inc.In Stock: 1024BD746A-S Datasheet

Current PartRFQ

TIP36C

NTE Electronics, IncIn Stock: 34828TIP36C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute grouping is determined strictly by matching part category, transistor type (PNP), package/case (TO-218-3), mounting type (through hole), and key electrical ratings including collector current, collector-emitter voltage, DC current gain, and maximum power dissipation. All substitute parts listed conform to these explicit parameters, ensuring direct interchangeability within the defined requirements.

Parameter Comparison

Engineering Selection Recommendations

Selection between BD746A-S and TIP36C can be made on the basis of product status, RoHS compliance, and package conformity. BD746A-S is obsolete but classified as ROHS3 compliant, while TIP36C is active, not RoHS compliant, and available in the matching through hole TO-218-3 package. All listed substitutes adhere to the specified electrical and mechanical parameters within this component category.

Frequently Asked Questions (FAQ)

Q1: What criteria are used for substituting BD746A-S with TIP36C?
A1: Substitution is based on matching transistor type, maximum collector current, collector-emitter breakdown voltage, package type, mounting style, and temperature ratings.

Q2: Do both BD746A-S and TIP36C fit the same PCB footprint and mounting style?
A2: Yes, both components feature through hole mounting and TO-218-3 package/case, ensuring mechanical compatibility.

Q3: Does RoHS compliance differ between BD746A-S and TIP36C?
A3: BD746A-S is ROHS3 compliant; TIP36C is not RoHS compliant.

Q4: Are there differences in electrical parameters that might affect substitution?
A4: TIP36C has a higher maximum collector current, breakdown voltage, and power dissipation compared to BD746A-S. Minimum DC current gain criteria differ by test conditions and value.

Q5: Is the operating temperature range the same for both parts?
A5: Yes, both support an operating temperature range of -65°C to 150°C (TJ).

Q6: Why must a substitute be selected for BD746A-S?
A6: BD746A-S is obsolete; substitutes with matching electrical and mechanical parameters are necessary for ongoing designs and inventory replenishment in the Transistors, Bipolar (BJT) category.