SMAJ110A-E3/61 Equivalent & Substitute Parts

Part Overview

The SMAJ110A-E3/61 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 110V reverse standoff voltage class with a 177V maximum clamping voltage and is designed for general-purpose transient protection applications. The part is active in production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the DO-214AC (SMA) package format.

Substiute Parts

SMAJ110A-E3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 36409SMAJ110A-E3/61 Datasheet

Current PartRFQ

SMAJ110A

MeritekIn Stock: 2384SMAJ110A Datasheet

MFR RecommendedRFQ

SMAJ110A-13-F

Diodes IncorporatedIn Stock: 35503SMAJ110A-13-F Datasheet

MFR RecommendedRFQ

SMAJ110A-TP

Micro Commercial CoIn Stock: 15744SMAJ110A-TP Datasheet

MFR RecommendedRFQ

SMAJ120A-13-F

Diodes IncorporatedIn Stock: 4789SMAJ120A-13-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMAJ110A-E3/61 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 110V
• Voltage - Clamping (Max) @ Ipp: 177V
• Package / Case: DO-214AC (SMA)
• Type: Zener, Unidirectional
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Substitute parts must maintain identical reverse standoff voltage and clamping voltage specifications to ensure functional equivalence in circuit protection. Peak pulse current and power ratings may vary within acceptable ranges for the application class. All substitutes are packaged in DO-214AC (SMA) format and comply with ROHS3 requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (110V Class):

SMAJ110A (Meritek), SMAJ110A-13-F (Diodes Incorporated), and SMAJ110A-TP (Micro Commercial Co) are direct functional equivalents to the SMAJ110A-E3/61. All three maintain identical reverse standoff voltage (110V) and clamping voltage (177V) specifications. These parts are active in production, ROHS3 compliant, and available in the same DO-214AC (SMA) package. Peak pulse current ratings are higher (2.26A to 2.3A) compared to the original 1.7A, providing enhanced transient handling capability within the same power class.

Alternative Voltage Class (120V Class):

SMAJ120A-13-F (Diodes Incorporated) operates in the 120V reverse standoff voltage class with 193V clamping voltage. This part is not a direct functional equivalent due to higher voltage specifications. Selection of this part requires circuit-level analysis to confirm compatibility with the 110V protection threshold. This part is active in production, ROHS3 compliant, and carries an automotive grade designation.

Frequently Asked Questions (FAQ)

Q: Can SMAJ110A (Meritek) be used as a direct replacement for SMAJ110A-E3/61?

A: Yes. Both parts maintain 110V reverse standoff voltage and 177V clamping voltage specifications. The Meritek part offers higher peak pulse current (2.26A vs 1.7A) and power rating (400W vs 300W), making it functionally compatible for the same application class.

Q: What is the difference between SMAJ110A-13-F and SMAJ110A-TP?

A: Both parts share identical electrical specifications (110V standoff, 177V clamping, 2.3A peak pulse current). The primary difference is manufacturer: SMAJ110A-13-F is supplied by Diodes Incorporated, while SMAJ110A-TP is supplied by Micro Commercial Co. SMAJ110A-TP supports an extended operating temperature range to 175°C (TA) compared to 150°C (TJ) for the Diodes part.

Q: Is SMAJ120A-13-F compatible with circuits designed for SMAJ110A-E3/61?

A: SMAJ120A-13-F operates at higher voltage thresholds (120V standoff, 193V clamping vs 110V standoff, 177V clamping). This part is not a direct substitute. Circuit compatibility requires verification that the higher protection voltage does not compromise system protection requirements.

Q: Are all substitute parts available in the same package format?

A: Yes. All listed substitute parts are packaged in DO-214AC (SMA) format, ensuring mechanical and thermal compatibility with the original SMAJ110A-E3/61 footprint.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity) rating, matching the compliance profile of the SMAJ110A-E3/61.