SMBJ45CA-13 Equivalent & Substitute Parts

Part Overview

The SMBJ45CA-13 is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in the SMB package (DO-214AA). It provides 45V reverse standoff voltage with 72.7V maximum clamping voltage and 8.3A peak pulse current capability for general-purpose transient voltage suppression applications. The SMBJ45CA-13 is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

SMBJ45CA-13

Diodes IncorporatedIn Stock: 933SMBJ45CA-13 Datasheet

Current PartRFQ

SMBJ45CA-13-F

Diodes IncorporatedIn Stock: 66074SMBJ45CA-13-F Datasheet

DirectRFQ

SMBJ45CA

MDDIn Stock: 17275SMBJ45CA Datasheet

DirectRFQ

SMBJ45CA

MDDIn Stock: 17275SMBJ45CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ45CA-13 are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 45V
• Voltage - Breakdown (Min): 50V
• Voltage - Clamping (Max) @ Ipp: 72.7V
• Current - Peak Pulse (10/1000µs): 8.3A
• Power - Peak Pulse: 600W
• Bidirectional Channels: 1
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C (or compatible subset)

Parts meeting these specifications are electrically and mechanically interchangeable. Packaging format (bulk versus tape & reel) and RoHS compliance status do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

SMBJ45CA-13-F (Diodes Incorporated) is the primary substitute. It maintains identical electrical specifications and operating temperature range while offering active product status and ROHS3 compliance. The only difference is packaging format (tape & reel versus bulk), which does not affect electrical performance or PCB assembly compatibility.

SMBJ45CA (MDD) is a secondary substitute. It meets all critical electrical parameters and maintains SMB package compatibility. The operating temperature minimum is -50°C versus -55°C for the original part; this difference is acceptable for applications not requiring the full -55°C lower limit. MDD variant also provides ROHS3 compliance and active product status.

Frequently Asked Questions (FAQ)

Q: Can SMBJ45CA-13-F be used as a direct replacement for SMBJ45CA-13?

A: Yes. SMBJ45CA-13-F is electrically and mechanically identical to SMBJ45CA-13. The difference is packaging format (tape & reel). Both are surface-mount SMB devices with identical voltage and current ratings.

Q: What is the difference between SMBJ45CA-13 and SMBJ45CA-13-F?

A: SMBJ45CA-13-F is supplied in tape & reel packaging, while SMBJ45CA-13 is supplied in bulk packaging. Electrical specifications are identical.

Q: Is the MDD SMBJ45CA suitable for all applications using SMBJ45CA-13?

A: The MDD variant is suitable for most applications. The operating temperature minimum is -50°C instead of -55°C. Verify that your application does not require operation below -50°C before selecting this substitute.

Q: Does RoHS compliance affect substitution?

A: RoHS compliance does not affect electrical or mechanical interchangeability. SMBJ45CA-13-F and SMBJ45CA (MDD) are ROHS3 compliant, while the original SMBJ45CA-13 is not. Select based on your regulatory requirements.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the DO-214AA (SMB) package with identical pin configuration and footprint.