SMCJ17CA-13 Transient Voltage Suppressor Diode - Equivalent & Substitute Parts

Part Overview

The SMCJ17CA-13 is a 17V reverse standoff transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in the DO-214AB (SMC) surface mount package. This component is designed for general-purpose transient voltage suppression applications with a 27.6V maximum clamping voltage and 53.3A peak pulse current rating. The part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

SMCJ17CA-13

Diodes IncorporatedIn Stock: 1115SMCJ17CA-13 Datasheet

Current PartRFQ

SMCJ17CA

Fairchild SemiconductorIn Stock: 6192SMCJ17CA Datasheet

DirectRFQ

SMCJ17CA

Fairchild SemiconductorIn Stock: 6192SMCJ17CA Datasheet

DirectRFQ

5.0SMDJ17CA

MDE Semiconductor IncIn Stock: 181565.0SMDJ17CA Datasheet

MFR RecommendedRFQ

5.0SMDJ17CA-T7

Littelfuse Inc.In Stock: 30645.0SMDJ17CA-T7 Datasheet

MFR RecommendedRFQ

SMCJ17CA-TP

Micro Commercial CoIn Stock: 4080SMCJ17CA-TP Datasheet

MFR RecommendedRFQ

SMDJ17CA

Alpha & Omega Semiconductor Inc.In Stock: 103089SMDJ17CA Datasheet

MFR RecommendedRFQ

SMLJ17CA

Bourns Inc.In Stock: 1629SMLJ17CA Datasheet

MFR RecommendedRFQ

SMLJ17CA-TP

Micro Commercial CoIn Stock: 4254SMLJ17CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ17CA-13 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 17V
• Voltage - Breakdown (Min): 18.9V
• Voltage - Clamping (Max) @ Ipp: 27.6V
• Bidirectional Channels: 1
• Package / Case: DO-214AB, SMC
• Type: Zener
• Mounting Type: Surface Mount

Acceptable Variation Parameters:

• Current - Peak Pulse (10/1000µs): 53.3A minimum (higher ratings acceptable)
• Power - Peak Pulse: 1500W minimum (higher ratings acceptable)
• Operating Temperature: -55°C minimum to 150°C maximum (extended ranges acceptable)

Substitute parts maintain identical voltage specifications and package form factor while offering equal or superior current handling and power dissipation capabilities. All substitutes are single-channel bidirectional Zener TVS diodes in surface mount configuration.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Highest Compatibility): SMCJ17CA-TP (Micro Commercial Co) provides the closest electrical match to the original SMCJ17CA-13 with 54.4A peak pulse current and 1500W power rating. This part is active, RoHS3 compliant, and rated to -55°C ~ 175°C, extending the upper operating temperature limit. Tape & Reel packaging is standard for production environments.

Enhanced Performance Alternatives: SMDJ17CA (Alpha & Omega Semiconductor Inc.) and SMLJ17CA (Bourns Inc.) offer doubled current handling (108.7A and 106.6A respectively) and tripled power dissipation (3000W) while maintaining identical voltage specifications. Both are active, RoHS3 compliant, and suitable for applications requiring higher transient energy absorption.

High-Power Applications: 5.0SMDJ17CA (MDE Semiconductor Inc.) and 5.0SMDJ17CA-T7 (Littelfuse Inc.) provide maximum performance with 181A peak pulse current and 5000W power rating. The Littelfuse variant extends the lower operating temperature to -65°C. Both are RoHS3 compliant and active.

Compliance Consideration: All substitute parts listed are RoHS3 compliant, addressing the non-compliant status of the original SMCJ17CA-13. Selection should prioritize active products with current manufacturing status for long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can SMCJ17CA-TP directly replace SMCJ17CA-13 without circuit modification? A: Yes. SMCJ17CA-TP maintains identical voltage specifications (17V reverse standoff, 18.9V breakdown, 27.6V clamping) and equivalent current/power ratings (54.4A, 1500W). The DO-214AB (SMC) package is mechanically identical. No circuit changes are required.

Q: What is the difference between SMDJ17CA and SMLJ17CA? A: Both parts share identical electrical specifications (17V standoff, 27.6V clamping, 106.6A/108.7A peak pulse, 3000W power). The primary difference is manufacturer: SMDJ17CA is from Alpha & Omega Semiconductor, while SMLJ17CA is from Bourns. Both use DO-214AB (SMC) packaging and are RoHS3 compliant.

Q: Why do some substitutes have higher current ratings (181A vs 53.3A)? A: Higher current ratings indicate greater transient energy absorption capability. The 5.0SMDJ17CA series (181A, 5000W) provides enhanced protection margin for the same voltage specifications. This is acceptable for direct substitution as it maintains or exceeds the original performance envelope.

Q: Are all substitute parts available in Tape & Reel packaging? A: Yes. All listed substitute parts are available in Tape & Reel (TR) packaging, standard for surface mount production assembly. The original SMCJ17CA-13 was supplied in bulk; substitutes maintain the same DO-214AB (SMC) form factor for automated placement.

Q: What is the significance of RoHS3 compliance on these parts? A: RoHS3 compliance indicates conformance to current environmental and hazardous substance restrictions. The original SMCJ17CA-13 is RoHS non-compliant. All substitute parts are RoHS3 compliant, meeting modern procurement and regulatory requirements.

Q: Can I use 5.0SMDJ17CA-T7 in place of SMCJ17CA-TP? A: Yes. Both parts maintain the required 17V/27.6V voltage specifications and DO-214AB packaging. The 5.0SMDJ17CA-T7 offers superior performance (181A vs 54.4A, 5000W vs 1500W) and extended lower temperature rating (-65°C vs -55°C). Selection depends on application power budget and thermal requirements.

Q: What packaging format should I specify for production orders? A: Specify Tape & Reel (TR) packaging for automated surface mount assembly. All substitute parts are available in this format with standard 13-inch reel configuration for DO-214AB components.