BAT43-TR Equivalent & Substitute Parts

Part Overview

The BAT43-TR is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 30 V DC reverse voltage and 200 mA average rectified current in a DO-35 through-hole package. The device is supplied in Tape & Reel (TR) packaging format and maintains Active product status. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and packaging specifications to support component procurement flexibility and supply chain continuity.

Substiute Parts

BAT43-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 1167BAT43-TR Datasheet

Current PartRFQ

BAT43-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 32956BAT43-TAP Datasheet

Parametric EquivalentRFQ

BAT42

STMicroelectronicsIn Stock: 45306BAT42 Datasheet

DirectRFQ

BAT43

STMicroelectronicsIn Stock: 17402BAT43 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT43-TR is determined by equivalence in the following critical parameters: reverse voltage rating (30 V), average rectified current (200 mA), reverse recovery time (5 ns), reverse leakage current (500 nA @ 25 V), and junction capacitance (7 pF @ 1 V, 1 MHz). All substitute parts must maintain Schottky technology classification, through-hole mounting in DO-35 package format, and compliance with RoHS3 and MSL 1 specifications.

Substitutes are grouped into two categories:

Parametric Equivalent (Packaging Variant): BAT43-TAP differs from the main part only in packaging format (Cut Tape versus Tape & Reel), with identical electrical specifications and manufacturer origin.

Direct Manufacturer Equivalents (Cross-Manufacturer): BAT42 and BAT43 (STMicroelectronics) provide electrical equivalence across all critical parameters with alternative manufacturer sourcing and packaging options.

Parameter Comparison

Engineering Selection Recommendations

BAT43-TAP (Vishay): Direct parametric equivalent with identical electrical performance and Vishay manufacturer origin. Selection is appropriate when Cut Tape packaging format is compatible with assembly processes. Maintains Automotive grade qualification and AEC-Q101 certification.

BAT42 (STMicroelectronics): Cross-manufacturer substitute with equivalent electrical specifications across all critical parameters. Suitable for applications requiring alternative supplier sourcing. Operating temperature range extends to -65°C minimum, providing broader thermal operating envelope compared to BAT43-TR specification of 125°C maximum junction temperature.

BAT43 (STMicroelectronics): Manufacturer-recommended cross-manufacturer substitute with full electrical equivalence. Provides alternative sourcing from STMicroelectronics with identical performance characteristics. Operating temperature range extends to -65°C minimum.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and through-hole DO-35 package compatibility, supporting direct circuit board integration without design modification.

Frequently Asked Questions (FAQ)

Q: Can BAT43-TAP replace BAT43-TR in production assembly?

A: Yes. BAT43-TAP is a parametric equivalent with identical electrical specifications. The difference is packaging format: BAT43-TAP is supplied in Cut Tape (CT) format while BAT43-TR is supplied in Tape & Reel (TR) format. Both formats are compatible with standard pick-and-place assembly equipment. Verify that your assembly process supports the specific tape format.

Q: What is the difference between BAT43-TR and the STMicroelectronics BAT42?

A: Both devices share identical reverse voltage (30 V), average rectified current (200 mA), reverse recovery time (5 ns), reverse leakage current (500 nA @ 25 V), and junction capacitance (7 pF @ 1 V, 1 MHz). The primary difference is manufacturer origin: BAT43-TR is Vishay, BAT42 is STMicroelectronics. Forward voltage specification differs at measurement point: BAT43-TR specifies 450 mV @ 15 mA, while BAT42 specifies 1 V @ 200 mA. Both are electrically equivalent for circuit operation.

Q: Are all substitute parts qualified to the same automotive standards?

A: BAT43-TR carries Automotive grade qualification and AEC-Q101 certification. BAT42 and BAT43 (STMicroelectronics) do not list these qualifications in the provided specifications. Verify automotive qualification requirements with the component supplier before selection for automotive applications.

Q: Can I use BAT43 (STMicroelectronics) as a direct replacement for BAT43-TR?

A: Yes. BAT43 from STMicroelectronics is electrically equivalent across all critical parameters: 30 V reverse voltage, 200 mA average rectified current, 5 ns reverse recovery time, 500 nA reverse leakage, and 7 pF junction capacitance. Both use DO-35 through-hole package format. Confirm that your application does not require the Automotive grade or AEC-Q101 certification specified for BAT43-TR.

Q: What is the operating temperature difference between BAT43-TR and substitute parts?

A: BAT43-TR specifies maximum junction temperature of 125°C. BAT42 and BAT43 (STMicroelectronics) specify operating temperature range of -65°C to 125°C, providing extended low-temperature operation capability. For applications operating below ambient conditions, STMicroelectronics parts offer broader thermal range.

Q: Are all parts RoHS3 compliant?

A: Yes. BAT43-TR, BAT43-TAP, BAT42, and BAT43 are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, supporting lead-free assembly processes and environmental compliance requirements.