SMAJ150CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMAJ150CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a reverse standoff voltage of 150V and provides clamping protection at 268V maximum. The component is supplied in tape and reel packaging with DO-214AC (SMA) form factor and maintains active product status with full RoHS3 compliance.

Substitute parts are identified to address supply chain requirements, inventory availability, or equivalent performance specifications across multiple manufacturers while maintaining functional compatibility within the 150V standoff voltage class.

Substiute Parts

SMAJ150CE3/TR13

Microchip TechnologyIn Stock: 768SMAJ150CE3/TR13 Datasheet

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SMAJ150CA

MDDIn Stock: 25279SMAJ150CA Datasheet

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SMAJ150CA

MDDIn Stock: 25279SMAJ150CA Datasheet

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SMAJ150CA-13-F

Diodes IncorporatedIn Stock: 5253SMAJ150CA-13-F Datasheet

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SMAJ150CA-TP

Micro Commercial CoIn Stock: 15658SMAJ150CA-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMAJ150CE3/TR13 is determined by the following critical parameters:

Primary Matching Criteria:

• Voltage - Reverse Standoff (Typ): 150V
• Voltage - Breakdown (Min): 167V
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener
• RoHS3 Compliance: Required

Secondary Compatibility Factors:

• Voltage - Clamping (Max) @ Ipp: Acceptable range 243V to 268V
• Current - Peak Pulse (10/1000µs): Acceptable range 1.6A to 1.9A
• Power - Peak Pulse: Acceptable range 400W to 500W
• Operating Temperature Range: Minimum -55°C to maximum 150°C

All substitute parts maintain identical reverse standoff voltage, breakdown voltage, and package specifications. Variations in clamping voltage, peak pulse current, and power dissipation remain within acceptable operational margins for general-purpose transient suppression applications.

Parameter Comparison

Engineering Selection Recommendations

SMAJ150CA (MDD)

This substitute maintains full electrical equivalence at the 150V standoff voltage specification. The reduced clamping voltage (243V versus 268V) and peak pulse current (1.6A versus 1.9A) remain within acceptable operational margins for general-purpose transient suppression. The component is RoHS3 compliant with MSL 1 rating. Operating temperature minimum of -50°C is narrower than the primary part; applications requiring operation below -50°C require the SMAJ150CE3/TR13 or SMAJ150CA-13-F.

SMAJ150CA-13-F (Diodes Incorporated)

This substitute provides equivalent performance with tape and reel packaging identical to the primary part. Operating temperature range of -55°C to 150°C accommodates most general-purpose applications. RoHS3 compliance and MSL 1 rating are maintained. Peak pulse specifications (1.6A, 400W) are reduced compared to the primary part but remain suitable for standard transient protection circuits.

SMAJ150CA-TP (Micro Commercial Co)

This substitute offers the widest operating temperature range (-55°C to 175°C) among all alternatives, extending maximum junction temperature capability to 175°C. Tape and reel packaging, RoHS3 compliance, and MSL 1 rating are maintained. Electrical specifications match the SMAJ150CA variants with 243V clamping voltage and 1.6A peak pulse current.

All substitute parts are active products with confirmed inventory availability and full regulatory compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can SMAJ150CA substitute for SMAJ150CE3/TR13 in all applications?

A: SMAJ150CA is electrically equivalent at the 150V standoff voltage specification. The primary difference is reduced peak pulse current (1.6A versus 1.9A) and clamping voltage (243V versus 268V). Applications with transient energy requirements below 400W peak pulse power can use this substitute. Applications requiring the full 500W peak pulse power specification require the SMAJ150CE3/TR13.

Q: What is the difference between SMAJ150CA-13-F and SMAJ150CA-TP?

A: Both parts maintain identical electrical specifications (150V standoff, 243V clamping, 1.6A peak pulse). The primary difference is operating temperature range: SMAJ150CA-13-F operates from -55°C to 150°C, while SMAJ150CA-TP extends to 175°C maximum. Selection depends on application thermal requirements. Both are supplied in tape and reel packaging.

Q: Are all substitute parts available in tape and reel packaging?

A: SMAJ150CA-13-F and SMAJ150CA-TP are explicitly supplied in tape and reel (TR) packaging. SMAJ150CA (MDD) does not specify packaging format in the provided data. For applications requiring tape and reel format, SMAJ150CA-13-F or SMAJ150CA-TP are confirmed compatible.

Q: Do all substitute parts meet RoHS3 compliance?

A: All substitute parts listed are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for SMAJ150CE3/TR13, SMAJ150CA-13-F, and SMAJ150CA-TP. Regulatory compliance is maintained across all alternatives.

Q: What is the minimum operating temperature requirement for each substitute?

A: SMAJ150CE3/TR13 operates to -65°C (TJ). SMAJ150CA operates to -50°C (TJ). SMAJ150CA-13-F and SMAJ150CA-TP both operate to -55°C. Applications requiring operation below -55°C require the primary part SMAJ150CE3/TR13.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: All substitute parts use identical DO-214AC (SMA) package and surface-mount footprint. Physical interchangeability is confirmed. Electrical interchangeability depends on circuit transient energy requirements and operating temperature range specifications.