Equivalent & Substitute Parts for BD746-S

Part Overview

The BD746-S, manufactured by Bourns Inc., is a PNP bipolar (BJT) transistor specified for 45 V collector-emitter breakdown voltage, 20 A collector current, and 3.5 W power dissipation. This device is supplied in a SOT-93 (TO-218-3) through-hole package. The product is listed as obsolete, which creates a necessity for sourcing alternative part numbers to ensure ongoing manufacturability, maintenance, or repair.

Substiute Parts

BD746-S

Bourns Inc.In Stock: 744BD746-S Datasheet

Current PartRFQ

TIP36C SL

Central Semiconductor CorpIn Stock: 1063TIP36C SL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is performed strictly by matching the relevant electrical and mechanical parameters in the Transistors, Bipolar (BJT) category. The key parameters evaluated include: transistor type, collector current (Ic) maximum, collector-emitter breakdown voltage, minimum DC current gain (hFE), maximum power dissipation, operating temperature range, mounting type, and package specifications. Only parts matching or exceeding the main part's parameters and fitting the same package standards are grouped as substitutes.

Parameter Comparison

Engineering Selection Recommendations

BD746-S is obsolete; TIP36C SL is active. BD746-S is ROHS3 compliant, while TIP36C SL is RoHS non-compliant. Both parts have a maximum moisture sensitivity level of 1 (Unlimited). All other key electrical and mechanical performance criteria are met within the provided parameters.

Frequently Asked Questions (FAQ)

Q1: What are the main parameters to consider when selecting a substitute for BD746-S?
A1: The essential parameters are transistor type, collector current (Ic) maximum, collector-emitter breakdown voltage, DC current gain (hFE) minimum, maximum power dissipation, operating temperature range, mounting type, and package or supplier device package.

Q2: Is the package of TIP36C SL the same as BD746-S?
A2: Both parts are supplied in a TO-218-3 through-hole package, with BD746-S specified as SOT-93 and TIP36C SL as TO-218. The form factor matches the through-hole configuration in this product category.

Q3: Does RoHS status affect substitution for BD746-S?
A3: BD746-S is ROHS3 compliant, while TIP36C SL is RoHS non-compliant. RoHS status is a key consideration for regulated markets or compliance-driven applications.

Q4: How does product status affect substitute selection?
A4: BD746-S is obsolete, and TIP36C SL is active. Status influences long-term sourcing reliability and availability for ongoing production needs.

Q5: Are there differences in electrical ratings that must be reviewed?
A5: All key electrical ratings provided are either matched or exceeded within the substitute part's specifications. All values are taken directly from the supplied parameters.