SMAJ64CA-TP Equivalent & Substitute Parts

Part Overview

The SMAJ64CA-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 64V reverse standoff voltage and provides 103V maximum clamping voltage at peak pulse current, with a peak pulse power rating of 400W. The part is actively produced and RoHS3 compliant, making it suitable for modern electronic circuit protection requirements.

Equivalent and substitute parts are identified when components share identical or functionally compatible electrical parameters within the specified operating ranges, matching package specifications, and maintaining compliance certifications required for direct circuit board replacement.

Substiute Parts

SMAJ64CA-TP

Micro Commercial CoIn Stock: 5649SMAJ64CA-TP Datasheet

Current PartRFQ

SMAJ64CA

MeritekIn Stock: 10039SMAJ64CA Datasheet

DirectRFQ

SMAJ64CA

MeritekIn Stock: 10039SMAJ64CA Datasheet

DirectRFQ

SMAJ64CA-13-F

Diodes IncorporatedIn Stock: 5231SMAJ64CA-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMAJ64CA-TP are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 64V
• Voltage - Breakdown (Min): 71.1V
• Voltage - Clamping (Max) @ Ipp: 103V
• Current - Peak Pulse (10/1000µs): 3.9A or equivalent
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Two substitute parts meet these criteria with minor parameter variations within acceptable engineering tolerances for TVS diode applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and ROHS3 compliance. The SMAJ64CA-TP and SMAJ64CA-13-F are functionally equivalent with identical peak pulse current ratings of 3.9A. The SMAJ64CA from Meritek provides a substitute option with a marginally lower peak pulse current of 3.88A, which remains within acceptable tolerance for general-purpose TVS applications.

The SMAJ64CA-TP supports an extended operating temperature range of -55 to 175°C, compared to -55 to 150°C for both substitute parts. Applications requiring operation above 150°C should retain the original SMAJ64CA-TP specification.

Both substitute parts are available in higher inventory quantities, providing supply chain flexibility. The SMAJ64CA-13-F from Diodes Incorporated and SMAJ64CA-TP from Micro Commercial Co are packaged in Tape & Reel format, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can SMAJ64CA (Meritek) be used as a direct replacement for SMAJ64CA-TP?

A: Yes, for applications operating within -55 to 150°C. The peak pulse current specification of 3.88A is marginally lower than the original 3.9A but remains functionally compatible for general-purpose transient voltage suppression. Applications requiring the extended temperature range above 150°C should use SMAJ64CA-13-F or retain the original part.

Q: What is the difference between SMAJ64CA-13-F and SMAJ64CA-TP?

A: Both parts share identical electrical parameters (64V standoff, 103V clamping, 3.9A peak pulse current, 400W power rating) and DO-214AC (SMA) packaging. The primary difference is the maximum operating temperature: SMAJ64CA-TP supports -55 to 175°C, while SMAJ64CA-13-F supports -55 to 150°C. For applications within the 150°C limit, SMAJ64CA-13-F provides a direct equivalent.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. SMAJ64CA-TP, SMAJ64CA, and SMAJ64CA-13-F are all RoHS3 compliant with MSL rating of 1 (Unlimited), meeting modern environmental and regulatory requirements.

Q: Does packaging format affect substitution?

A: SMAJ64CA-TP and SMAJ64CA-13-F are supplied in Tape & Reel (TR) format for automated assembly. SMAJ64CA packaging format is not specified. Verify packaging compatibility with your assembly process requirements before selection.

Q: What is the peak pulse current tolerance between substitute parts?

A: SMAJ64CA-TP and SMAJ64CA-13-F both specify 3.9A peak pulse current. SMAJ64CA specifies 3.88A, representing a 0.3% reduction. This variation is within standard TVS diode manufacturing tolerances and does not affect functional compatibility for general-purpose applications.