SMAJ5.0C Equivalent & Substitute Parts

Part Overview

The SMAJ5.0C is a 5V Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc. in DO-214AC (SMA) surface mount package. This component is designed for general-purpose transient voltage protection applications with a 5V reverse standoff voltage and 9.66V maximum clamping voltage at peak pulse current of 44.6A.

The SMAJ5.0C is classified as obsolete. Equivalent and substitute parts are available from multiple manufacturers with active product status, offering compatible electrical and mechanical specifications suitable for direct replacement in new designs and production environments.

Substiute Parts

SMAJ5.0C

Littelfuse Inc.In Stock: 2170SMAJ5.0C Datasheet

Current PartRFQ

SMAJ5.0CA

MDDIn Stock: 35308SMAJ5.0CA Datasheet

DirectRFQ

SMAJ5.0CA

MDDIn Stock: 35308SMAJ5.0CA Datasheet

DirectRFQ

SMAJ5.0CA-13-F

Diodes IncorporatedIn Stock: 20382SMAJ5.0CA-13-F Datasheet

MFR RecommendedRFQ

SMAJ5.0CA-TP

Micro Commercial CoIn Stock: 19258SMAJ5.0CA-TP Datasheet

MFR RecommendedRFQ

SMAJ5.0CAE3/TR13

Microchip TechnologyIn Stock: 1020SMAJ5.0CAE3/TR13 Datasheet

MFR RecommendedRFQ

SMAJ5.0CE3/TR13

Microchip TechnologyIn Stock: 728SMAJ5.0CE3/TR13 Datasheet

MFR RecommendedRFQ

TV04A5V0JB-G

Comchip TechnologyIn Stock: 1252TV04A5V0JB-G Datasheet

MFR RecommendedRFQ

TV04A5V0JB-HF

Comchip TechnologyIn Stock: 5524TV04A5V0JB-HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMAJ5.0C are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 5V
• Package / Case: DO-214AC, SMA
• Type: Zener
• Bidirectional Channels: 1
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Allowable Variation Parameters:

• Voltage - Clamping (Max) @ Ipp: 9.2V to 9.66V (within design tolerance)
• Current - Peak Pulse (10/1000µs): 44.6A to 54.3A (equal or higher rating acceptable)
• Power - Peak Pulse: 400W to 500W (equal or higher rating acceptable)
• Operating Temperature: -65°C to -50°C minimum; 150°C to 175°C maximum (within or exceeding original range)

All substitute parts maintain identical reverse standoff voltage, package configuration, and compliance certifications, ensuring direct functional and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance for production applications.

Primary Substitutes (Closest Electrical Match): SMAJ5.0CA (MDD), SMAJ5.0CA-13-F (Diodes Incorporated), SMAJ5.0CA-TP (Micro Commercial Co), and TV04A5V0JB-HF (Comchip Technology) provide equivalent 5V standoff voltage, 9.2V clamping voltage, and 44.6A peak pulse current ratings. These parts are suitable for direct replacement where the original SMAJ5.0C specifications are required.

Enhanced Performance Alternatives: SMAJ5.0CAE3/TR13 (Microchip Technology) and SMAJ5.0CE3/TR13 (Microchip Technology) offer higher peak pulse current ratings (54.3A and 52A respectively) and increased power dissipation (500W), providing additional margin for transient protection in demanding applications while maintaining the same 5V standoff voltage and DO-214AC package.

Temperature Range Considerations: SMAJ5.0CA-TP (Micro Commercial Co) extends the upper operating temperature to 175°C (TA), suitable for high-temperature environments. SMAJ5.0CAE3/TR13 and SMAJ5.0CE3/TR13 maintain the original -65°C to 150°C range, matching the SMAJ5.0C thermal specifications.

Frequently Asked Questions (FAQ)

Q: Can SMAJ5.0CA substitute for SMAJ5.0C in existing designs? A: Yes. SMAJ5.0CA maintains identical 5V reverse standoff voltage, DO-214AC package, and ROHS3 compliance. The 9.2V clamping voltage is within acceptable tolerance of the original 9.66V specification. Electrical performance is compatible for general-purpose transient voltage suppression applications.

Q: What is the difference between SMAJ5.0CAE3/TR13 and SMAJ5.0CE3/TR13? A: Both are Microchip Technology products in DO-214AC package with 5V standoff voltage. SMAJ5.0CAE3/TR13 provides 54.3A peak pulse current and 9.2V clamping voltage. SMAJ5.0CE3/TR13 provides 52A peak pulse current and 9.6V clamping voltage. Selection depends on specific circuit protection requirements.

Q: Are all substitute parts available in the same packaging options? A: All substitute parts are available in DO-214AC (SMA) surface mount package. Packaging formats (Cut Tape, Tape & Reel) vary by manufacturer and supplier. Verify packaging availability with your component distributor for production requirements.

Q: Does operating temperature range affect substitution compatibility? A: Operating temperature range does not prevent substitution. SMAJ5.0CA-TP extends to 175°C (TA), exceeding the original -65°C to 150°C (TJ) range. Parts with narrower ranges (such as SMAJ5.0CA at -50°C minimum) remain compatible if your application operates within their specified limits.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original SMAJ5.0C compliance profile for regulated manufacturing environments.