SMAJ45CA-M3/61 Equivalent & Substitute Parts

Part Overview

The SMAJ45CA-M3/61 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 45V reverse standoff category and provides transient protection for general-purpose applications. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining identical electrical and mechanical specifications.

Substiute Parts

SMAJ45CA-M3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 748SMAJ45CA-M3/61 Datasheet

Current PartRFQ

SMAJ45CA

MDDIn Stock: 6423SMAJ45CA Datasheet

DirectRFQ

SMAJ45CA-13-F

Diodes IncorporatedIn Stock: 5136SMAJ45CA-13-F Datasheet

DirectRFQ

SMAJ45CA-TP

Micro Commercial CoIn Stock: 5938SMAJ45CA-TP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMAJ45CA-M3/61 are qualified based on strict electrical and mechanical parameter matching. All identified substitutes maintain identical specifications across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 45V
• Voltage - Breakdown (Min): 50V
• Voltage - Clamping (Max) @ Ipp: 72.7V
• Current - Peak Pulse (10/1000µs): 5.5A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Type: Zener, Bidirectional (1 channel)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts are active in production status. Substitution is valid across manufacturers (Vishay General Semiconductor - Diodes Division, MDD, Diodes Incorporated, Micro Commercial Co) provided that all electrical parameters and package specifications remain unchanged.

Parameter Comparison

Engineering Selection Recommendations

All four parts are active in production and carry ROHS3 compliance with unlimited moisture sensitivity rating (MSL 1). Selection among these substitutes should be based on:

1. Inventory Availability: SMAJ45CA (MDD) offers the highest stock level at 6,400 pieces. SMAJ45CA-TP (Micro Commercial Co) provides 5,898 pieces, and SMAJ45CA-13-F (Diodes Incorporated) offers 5,100 pieces.

2. Operating Temperature Range: SMAJ45CA-TP supports the widest temperature range (-55°C to 175°C TA), while SMAJ45CA (MDD) operates to -50°C minimum. SMAJ45CA-M3/61 and SMAJ45CA-13-F both specify -55°C to 150°C.

3. Packaging Format: SMAJ45CA-M3/61 and SMAJ45CA-13-F are supplied in Tape & Reel (TR) format. SMAJ45CA-TP is also supplied in Tape & Reel (TR). SMAJ45CA packaging format is not specified in available data.

4. Compliance Certifications: All parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 export classification where specified.

Frequently Asked Questions (FAQ)

Q: Can SMAJ45CA-M3/61 be directly replaced with SMAJ45CA?

A: Yes. Both parts share identical electrical specifications (45V standoff, 72.7V clamping, 5.5A peak pulse, 400W peak power) and package format (DO-214AC, SMA). Both are active production parts with ROHS3 compliance and MSL 1 rating.

Q: What is the difference between SMAJ45CA-13-F and SMAJ45CA-TP?

A: Electrical and package specifications are identical. The primary difference is operating temperature range: SMAJ45CA-13-F operates -55°C to 150°C (TJ), while SMAJ45CA-TP operates -55°C to 175°C (TA). SMAJ45CA-TP supports higher maximum temperature operation.

Q: Are all substitutes surface mount compatible?

A: Yes. All four parts are surface mount devices in DO-214AC (SMA) package format, suitable for automated assembly on PCBs designed for SMA footprints.

Q: Do all substitutes meet RoHS requirements?

A: Yes. All identified substitutes are ROHS3 compliant with unlimited moisture sensitivity (MSL 1), matching the compliance profile of SMAJ45CA-M3/61.

Q: Can substitution affect circuit performance?

A: No. All substitutes maintain identical electrical parameters for voltage suppression (45V standoff, 72.7V clamping) and current handling (5.5A peak pulse). Circuit performance remains unchanged when substituting among these parts.

Q: What packaging options are available?

A: SMAJ45CA-M3/61, SMAJ45CA-13-F, and SMAJ45CA-TP are supplied in Tape & Reel (TR) format for automated assembly. SMAJ45CA packaging format is not specified in available documentation.