SMAJ36CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMAJ36CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This bidirectional Zener diode operates with a 36V reverse standoff voltage and provides peak pulse current handling of 9.8A with a maximum clamping voltage of 64.3V at peak pulse current. The device is packaged in DO-214AC (SMA) surface mount format and is currently active in production status.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across alternative manufacturers while preserving the core protective function in circuit applications.

Substiute Parts

SMAJ36CE3/TR13

Microchip TechnologyIn Stock: 1006SMAJ36CE3/TR13 Datasheet

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ATV04A360JB-HF

Comchip TechnologyIn Stock: 1697ATV04A360JB-HF Datasheet

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SMAJ36CA

MDDIn Stock: 25389SMAJ36CA Datasheet

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SMAJ36CA

MDDIn Stock: 25389SMAJ36CA Datasheet

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SMAJ36CA R3G

Taiwan Semiconductor CorporationIn Stock: 2651SMAJ36CA R3G Datasheet

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SMAJ36CA-13-F

Diodes IncorporatedIn Stock: 8040SMAJ36CA-13-F Datasheet

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SMAJ36CA-E3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 47576SMAJ36CA-E3/5A Datasheet

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SMAJ36CA-E3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 6052SMAJ36CA-E3/61 Datasheet

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SMAJ36CA-Q

Bourns Inc.In Stock: 10008SMAJ36CA-Q Datasheet

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SMAJ36CA-TP

Micro Commercial CoIn Stock: 40783SMAJ36CA-TP Datasheet

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SMAJ36CAH

Taiwan Semiconductor CorporationIn Stock: 8677SMAJ36CAH Datasheet

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SMAJ36CAHR3G

Taiwan Semiconductor CorporationIn Stock: 3490SMAJ36CAHR3G Datasheet

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SZ1SMA36CAT3G

Littelfuse Inc.In Stock: 80171SZ1SMA36CAT3G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMAJ36CE3/TR13 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 36V
• Voltage - Breakdown (Min): 40V
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Type: Zener
• Bidirectional Channels: 1
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Performance Variation Tolerance: Substitute parts may exhibit different clamping voltage and peak pulse current ratings while maintaining the same standoff and breakdown voltage specifications. The SMAJ36CE3/TR13 operates at 64.3V clamping with 9.8A peak pulse current and 500W peak pulse power. Substitute devices in this category operate at 58.1V clamping with 6.9A to 6.88A peak pulse current and 400W peak pulse power. These variations remain within the functional scope of general-purpose transient voltage suppression for 36V protection circuits.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

All substitute parts maintain identical reverse standoff voltage (36V), breakdown voltage (40V), package format (DO-214AC, SMA), and RoHS3 compliance with the SMAJ36CE3/TR13. Selection among substitutes depends on application-specific requirements and supply chain considerations.

Active Production Status: The following parts are currently in active production and recommended for new designs:

• SMAJ36CA-13-F (Diodes Incorporated)
• SMAJ36CA-E3/5A (Vishay General Semiconductor - Diodes Division)
• SMAJ36CA-E3/61 (Vishay General Semiconductor - Diodes Division)
• SMAJ36CA-Q (Bourns Inc.)
• SMAJ36CA-TP (Micro Commercial Co)
• SMAJ36CAH (Taiwan Semiconductor Corporation)
• SMAJ36CA (MDD)
• ATV04A360JB-HF (Comchip Technology)

Automotive-Qualified Options: For applications requiring automotive-grade components with AEC-Q101 qualification:

• SMAJ36CA-Q (Bourns Inc.)
• SMAJ36CAH (Taiwan Semiconductor Corporation)
• ATV04A360JB-HF (Comchip Technology)

Extended Temperature Range: For applications requiring operation above 150°C junction temperature:

• SMAJ36CA-TP (Micro Commercial Co) supports -55 to 175°C (TA)

Discontinued Status:

• SMAJ36CA R3G (Taiwan Semiconductor Corporation) is discontinued at DiGi Electronics and should not be selected for new designs requiring long-term availability.

Performance Trade-offs: The SMAJ36CE3/TR13 provides higher peak pulse current (9.8A) and peak pulse power (500W) compared to substitute parts (6.88A to 6.9A, 400W). Applications requiring the full 9.8A peak pulse current capability should retain the original part number. For general-purpose 36V protection circuits with lower transient energy requirements, substitute parts with 6.9A peak pulse current are functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can SMAJ36CA-13-F replace SMAJ36CE3/TR13 directly?

A: Yes. Both devices share identical reverse standoff voltage (36V), breakdown voltage (40V), and DO-214AC (SMA) package format. The SMAJ36CA-13-F operates at 58.1V clamping with 6.9A peak pulse current versus the original 64.3V clamping with 9.8A. This substitution is valid for general-purpose transient suppression applications where the lower peak pulse current rating is acceptable.

Q: What is the difference between SMAJ36CA-E3/5A and SMAJ36CA-E3/61?

A: Both are Vishay TransZorb® series devices with identical electrical specifications (36V standoff, 40V breakdown, 58.1V clamping, 6.9A peak pulse). The difference lies in packaging configuration codes (E3/5A versus E3/61), which indicate different tape and reel specifications. Electrical performance and mechanical compatibility are equivalent.

Q: Are automotive-qualified substitutes required for this application?

A: Automotive qualification (AEC-Q101) is required only if the circuit operates in automotive environments or must meet automotive reliability standards. For general-purpose industrial or consumer applications, non-automotive-qualified parts are acceptable. Automotive-qualified options include SMAJ36CA-Q, SMAJ36CAH, and ATV04A360JB-HF.

Q: Why does SMAJ36CA-TP have a higher maximum temperature rating?

A: SMAJ36CA-TP specifies -55 to 175°C (TA) ambient temperature range, compared to -55 to 150°C (TJ) junction temperature for most substitutes. This extended rating accommodates applications with elevated ambient conditions. The higher temperature specification does not affect electrical performance at standard operating temperatures.

Q: Is the lower peak pulse power (400W vs. 500W) a concern?

A: Peak pulse power rating reflects the device's transient energy dissipation capability. The SMAJ36CE3/TR13 handles 500W peak pulse, while substitutes handle 400W. For circuits with transient energy below 400W, substitutes are fully adequate. Applications with transient energy between 400W and 500W require evaluation of actual pulse duration and repetition rate to determine if the lower rating is acceptable.

Q: Can I use SMAJ36CA R3G in new designs?

A: No. SMAJ36CA R3G is discontinued at DiGi Electronics and should not be selected for new designs. Use active production alternatives such as SMAJ36CA-13-F, SMAJ36CA-E3/5A, SMAJ36CA-E3/61, SMAJ36CA-Q, SMAJ36CA-TP, or SMAJ36CAH to ensure long-term supply availability.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and maintain the same moisture sensitivity level (MSL 1 - Unlimited) as the original SMAJ36CE3/TR13.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape in reel format for automated assembly lines. Cut Tape (CT) supplies components on tape segments cut to specific lengths. Both formats contain identical components; packaging format selection depends on assembly equipment and volume requirements. The SMAJ36CE3/TR13 is supplied in Tape & Reel format.