B140BE-13 Equivalent & Substitute Parts

Part Overview

The B140BE-13 is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 40 V DC reverse voltage and 1 A average rectified current in a Surface Mount SMB (DO-214AA) package. This component is classified as obsolete, indicating discontinuation from active production. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and ongoing system support.

Substiute Parts

B140BE-13

Diodes IncorporatedIn Stock: 25346B140BE-13 Datasheet

Current PartRFQ

B140B-13-F

Diodes IncorporatedIn Stock: 20328B140B-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the B140BE-13 is determined by electrical and mechanical parameter equivalence within the Schottky rectifier diode category. The following parameters establish substitution eligibility:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 500 mV @ 1 A
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Technology: Schottky

Allowable Variation Parameters:

• Current - Reverse Leakage @ Vr: Variation permitted within device specifications
• Capacitance @ Vr, F: Variation permitted within device specifications
• Operating Temperature - Junction: Extended range acceptable if minimum meets or exceeds original specification

The B140B-13-F qualifies as a direct substitute based on matching all critical parameters while maintaining functional equivalence in the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

The B140B-13-F is the direct substitute for the obsolete B140BE-13. Selection of this substitute is supported by the following factors:

Product Status: The B140B-13-F maintains active production status, ensuring long-term component availability and supply chain continuity compared to the obsolete B140BE-13.

Electrical Equivalence: All critical electrical parameters match the original specification: 40 V reverse voltage rating, 1 A average rectified current, and 500 mV forward voltage drop at 1 A. Fast recovery switching characteristics remain identical.

Mechanical Compatibility: Both components utilize the DO-214AA SMB surface mount package, ensuring direct PCB footprint compatibility without layout modifications.

Compliance Certification: The B140B-13-F maintains ROHS3 compliance and identical ECCN/HTSUS classifications, preserving regulatory and export compliance status.

Temperature Range: The B140B-13-F provides an extended operating temperature range (-65°C to 150°C versus -55°C to 150°C), offering improved performance margin in low-temperature applications.

Parameter Variations: The B140B-13-F exhibits higher reverse leakage current (500 µA versus 200 µA) and increased junction capacitance (110 pF versus 50 pF). These variations remain within acceptable limits for standard rectification applications and do not compromise functional performance in typical circuit configurations.

Frequently Asked Questions (FAQ)

Q: Can the B140B-13-F be used as a direct replacement for the B140BE-13 without circuit modifications?

A: Yes. The B140B-13-F is electrically and mechanically equivalent to the B140BE-13. Both components share identical voltage ratings, current ratings, forward voltage characteristics, and SMB package specifications. Direct substitution on existing PCBs is supported without design changes.

Q: What is the significance of the higher reverse leakage current in the B140B-13-F?

A: The B140B-13-F exhibits 500 µA reverse leakage at 40 V compared to 200 µA in the B140BE-13. This variation is within normal manufacturing tolerances for Schottky diodes and does not affect performance in standard rectification circuits. Applications requiring extremely low leakage current should evaluate circuit-specific requirements.

Q: Does the increased junction capacitance of the B140B-13-F affect high-frequency performance?

A: The B140B-13-F capacitance is 110 pF at 4 V, 1 MHz, compared to 50 pF in the B140BE-13. Both devices maintain identical fast recovery switching characteristics (≤ 500 ns). For applications operating at frequencies below 10 MHz, this capacitance difference produces negligible impact. High-frequency circuit designers should verify switching performance against specific application requirements.

Q: Why is the B140B-13-F available in Cut Tape and Digi-Reel packaging while the B140BE-13 does not specify packaging?

A: The B140B-13-F is an active production component offered in standard tape and reel packaging formats for automated assembly. The B140BE-13, being obsolete, is no longer manufactured in standard packaging configurations. The B140B-13-F packaging options support modern production workflows and component handling requirements.

Q: Is the extended temperature range of the B140B-13-F (-65°C to 150°C) a functional advantage?

A: The B140B-13-F supports operation to -65°C compared to -55°C for the B140BE-13. This extended low-temperature capability provides additional margin for applications in cold environments or equipment with wide operating temperature specifications. For applications limited to -55°C or higher, both components perform identically.

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

A: Both components maintain identical ROHS3 compliance, ECCN (EAR99), and HTSUS (8541.10.0080) classifications. The B140B-13-F is REACH Unaffected while the B140BE-13 is REACH Affected; however, both are suitable for equivalent regulatory environments. Consult specific regional requirements for your application.

Q: What is the base product number relationship between B140BE-13 and B140B-13-F?

A: Both components share the base product number B140, indicating they are part of the same Schottky rectifier diode family. The suffix designations (-BE-13 and -B-13-F) indicate manufacturing variants and packaging configurations within this product line.