SMAJ110CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMAJ110CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This surface-mount component operates in the 110V reverse standoff voltage class and features a 196V maximum clamping voltage with 2.6A peak pulse current capability. The part is active in production status and widely used in electronic circuits requiring transient suppression across a 110V nominal protection level. Substitute parts are identified to provide design flexibility, supply chain alternatives, and equivalent functional performance within specified electrical and mechanical parameters.

Substiute Parts

SMAJ110CE3/TR13

Microchip TechnologyIn Stock: 869SMAJ110CE3/TR13 Datasheet

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SMAJ110CA

MeritekIn Stock: 300411SMAJ110CA Datasheet

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SMAJ110CA

MeritekIn Stock: 300411SMAJ110CA Datasheet

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SMAJ110CA-13-F

Diodes IncorporatedIn Stock: 6226SMAJ110CA-13-F Datasheet

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SMAJ110CA-TP

Micro Commercial CoIn Stock: 5946SMAJ110CA-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMAJ110CE3/TR13 are qualified based on the following critical parameters that determine functional equivalence:

Matching Parameters (Required for Substitution):

• Voltage - Reverse Standoff (Typ): 110V
• Voltage - Breakdown (Min): 122V
• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• Type: Zener
• Bidirectional Channels: 1
• RoHS3 Compliance
• Moisture Sensitivity Level (MSL): 1

Allowable Variation Parameters:

• Voltage - Clamping (Max) @ Ipp: 177V to 196V (substitute parts operate at lower clamping voltages)
• Current - Peak Pulse (10/1000µs): 2.26A to 2.6A (substitute parts operate at lower peak pulse currents)
• Power - Peak Pulse: 400W to 500W (substitute parts operate at lower power dissipation)
• Operating Temperature Range: -55°C to 175°C (substitute parts may have different upper or lower temperature limits)

All identified substitute parts maintain the core 110V protection class and DO-214AC package specification, ensuring mechanical and electrical compatibility within the specified tolerance bands.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active production status and full RoHS3 compliance, ensuring regulatory alignment with current environmental standards. The SMAJ110CA (Meritek), SMAJ110CA-13-F (Diodes Incorporated), and SMAJ110CA-TP (Micro Commercial Co) are functionally equivalent alternatives to the SMAJ110CE3/TR13 within the specified electrical parameter ranges.

Selection Considerations Based on Provided Data:

The SMAJ110CE3/TR13 operates at maximum clamping voltage of 196V and peak pulse power of 500W. All substitute parts operate at 177V clamping voltage and 400W peak pulse power, representing lower stress operation within the same 110V protection class. This characteristic makes substitute parts suitable for applications where the lower clamping voltage and power dissipation remain within circuit design tolerances.

The SMAJ110CA-TP (Micro Commercial Co) offers the widest operating temperature range (-55°C to 175°C), providing extended upper temperature capability compared to the original part (-65°C to 150°C). The SMAJ110CA (Meritek) and SMAJ110CA-13-F (Diodes Incorporated) both operate within -55°C to 150°C, matching the upper temperature limit of the original part.

All parts share identical reverse standoff voltage (110V), breakdown voltage (122V), package specification (DO-214AC/SMA), and mounting type (Surface Mount), ensuring direct mechanical and electrical compatibility in circuit board layouts.

Frequently Asked Questions (FAQ)

Q: Can SMAJ110CA substitute for SMAJ110CE3/TR13 in all applications?

A: The SMAJ110CA operates at 177V clamping voltage compared to the original part's 196V, and delivers 2.26A peak pulse current versus 2.6A. Substitution is valid when circuit design tolerances accommodate these lower electrical parameters. Both parts maintain the same 110V reverse standoff voltage and DO-214AC package specification.

Q: What is the difference between SMAJ110CA-13-F and SMAJ110CA-TP?

A: Both parts share identical electrical specifications (177V clamping, 2.3A peak pulse, 400W power). The SMAJ110CA-TP (Micro Commercial Co) operates across -55°C to 175°C, while SMAJ110CA-13-F (Diodes Incorporated) operates across -55°C to 150°C. Selection depends on application temperature requirements.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the DO-214AC (SMA) surface-mount package, ensuring identical footprint compatibility and mounting characteristics on printed circuit boards.

Q: Do substitute parts meet the same compliance standards?

A: All substitute parts are RoHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original SMAJ110CE3/TR13 specifications.

Q: What is the significance of the 19V difference in clamping voltage between the original and substitute parts?

A: The SMAJ110CE3/TR13 clamps at 196V maximum, while substitutes clamp at 177V maximum. This 19V difference represents lower transient voltage suppression at peak pulse conditions. Substitution is appropriate when circuit protection requirements are satisfied by the 177V clamping level.

Q: Can I use SMAJ110CA-TP in applications requiring -65°C minimum temperature operation?

A: No. The SMAJ110CA-TP operates from -55°C minimum, which is 10°C higher than the original SMAJ110CE3/TR13 (-65°C minimum). Applications requiring -65°C operation must use the original part or verify that -55°C minimum meets design requirements.

Q: Are there inventory differences between substitute parts?

A: Yes. Inventory levels vary: SMAJ110CA (Meritek) has 300,400 pieces available, SMAJ110CA-13-F (Diodes Incorporated) has 6,149 pieces, and SMAJ110CA-TP (Micro Commercial Co) has 5,909 pieces. The original SMAJ110CE3/TR13 has 813 pieces in stock.