SMAJ110C Equivalent & Substitute Parts

Part Overview

The SMAJ110C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 110V reverse standoff voltage with a 185.85V maximum clamping voltage and 2.3A peak pulse current capability in a DO-214AC (SMA) package.

The SMAJ110C is classified as obsolete. Identifying qualified substitute parts ensures design continuity and maintains supply chain reliability for applications requiring equivalent transient voltage suppression performance.

Substiute Parts

SMAJ110C

Littelfuse Inc.In Stock: 768SMAJ110C Datasheet

Current PartRFQ

SMAJ110CA

MeritekIn Stock: 300411SMAJ110CA Datasheet

DirectRFQ

SMAJ110CA

MeritekIn Stock: 300411SMAJ110CA Datasheet

DirectRFQ

SMAJ110CA-13-F

Diodes IncorporatedIn Stock: 6226SMAJ110CA-13-F Datasheet

MFR RecommendedRFQ

SMAJ110CA-TP

Micro Commercial CoIn Stock: 5946SMAJ110CA-TP Datasheet

MFR RecommendedRFQ

SMAJ110CAE3/TR13

Microchip TechnologyIn Stock: 1127SMAJ110CAE3/TR13 Datasheet

MFR RecommendedRFQ

SMAJ110CE3/TR13

Microchip TechnologyIn Stock: 869SMAJ110CE3/TR13 Datasheet

MFR RecommendedRFQ

TV04A111JB-G

Comchip TechnologyIn Stock: 1005TV04A111JB-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMAJ110C are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 110V
• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• Type: Zener (Bidirectional, 1 channel)
• RoHS Status: ROHS3 Compliant

Secondary Compatibility Parameters:

• Voltage - Clamping (Max) @ Ipp: Range 177V to 196V (within acceptable tolerance for general-purpose TVS applications)
• Current - Peak Pulse (10/1000µs): Range 2.26A to 2.8A (capable of handling transient events)
• Power - Peak Pulse: 400W to 500W
• Operating Temperature: -55°C to 175°C (covers or exceeds original specification)

All substitute parts listed maintain the same reverse standoff voltage, package form factor, and surface-mount configuration, ensuring mechanical and electrical compatibility with the original SMAJ110C design.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original SMAJ110C specifications.

For applications requiring exact clamping voltage alignment: SMAJ110CA-TP (Micro Commercial Co) provides the closest match to the original 185.85V specification at 177V clamping voltage, with extended operating temperature range to 175°C and active product status.

For applications with enhanced transient current handling: SMAJ110CAE3/TR13 (Microchip Technology) offers 2.8A peak pulse current and 500W peak pulse power, providing additional margin for high-energy transient events while maintaining the 110V reverse standoff voltage and DO-214AC package.

For applications with higher clamping voltage tolerance: SMAJ110CE3/TR13 (Microchip Technology) provides 196V maximum clamping voltage with 2.6A peak pulse current and 500W peak pulse power, suitable for designs where slightly elevated clamping voltage is acceptable.

All substitute parts maintain identical package form factor (DO-214AC/SMA), surface-mount configuration, and reverse standoff voltage (110V), ensuring direct mechanical and electrical compatibility with the original SMAJ110C footprint and circuit function.

Frequently Asked Questions (FAQ)

Q: Can SMAJ110CA be used as a direct replacement for SMAJ110C?

A: Yes. Both parts share the same 110V reverse standoff voltage, DO-214AC (SMA) package, and surface-mount configuration. SMAJ110CA is an active product from Meritek with ROHS3 compliance. The clamping voltage is 177V compared to the original 185.85V, representing a 4.8% reduction within acceptable tolerance for general-purpose TVS applications.

Q: What is the difference between SMAJ110CA-TP and SMAJ110CAE3/TR13?

A: Both parts maintain 110V reverse standoff voltage and DO-214AC (SMA) packaging. SMAJ110CA-TP (Micro Commercial Co) provides 2.3A peak pulse current and 400W peak pulse power with operating temperature to 175°C. SMAJ110CAE3/TR13 (Microchip Technology) provides higher transient handling capability at 2.8A peak pulse current and 500W peak pulse power, with operating temperature to 150°C. Selection depends on whether extended temperature range or enhanced transient current capacity is required.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original SMAJ110C environmental and regulatory specifications.

Q: Does the clamping voltage variation among substitutes affect circuit compatibility?

A: Clamping voltage variations (177V to 196V) remain within the functional range for general-purpose TVS applications protecting against transient overvoltage. The 110V reverse standoff voltage is maintained across all substitutes, ensuring consistent circuit protection threshold. Application-specific requirements should be verified against circuit design specifications.

Q: Can TV04A111JB-G from Comchip Technology be used interchangeably with SMAJ110C?

A: Yes. TV04A111JB-G maintains the same 110V reverse standoff voltage, DO-214AC (SMA) package, and surface-mount configuration. It is an active product with ROHS3 compliance. The 177V clamping voltage and 2.26A peak pulse current are compatible with general-purpose TVS applications. The primary difference is manufacturer (Comchip Technology vs. Littelfuse Inc.).