CD214L-T20CALF Equivalent & Substitute Parts

Part Overview

The CD214L-T20CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 20V reverse standoff voltage with a 32.4V maximum clamping voltage and 92.6A peak pulse current capability in a DO-214AB (SMC) package. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and component procurement.

Substiute Parts

CD214L-T20CALF

Bourns Inc.In Stock: 23175CD214L-T20CALF Datasheet

Current PartRFQ

SMLJ20CA

Bourns Inc.In Stock: 4627SMLJ20CA Datasheet

DirectRFQ

5.0SMDJ20CA

MDE Semiconductor IncIn Stock: 61895.0SMDJ20CA Datasheet

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5.0SMDJ20CA-T7

Littelfuse Inc.In Stock: 21305.0SMDJ20CA-T7 Datasheet

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SMCJ20CA

Fairchild SemiconductorIn Stock: 602277SMCJ20CA Datasheet

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SMCJ20CA

Fairchild SemiconductorIn Stock: 602277SMCJ20CA Datasheet

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SMCJ20CA-TP

Micro Commercial CoIn Stock: 4181SMCJ20CA-TP Datasheet

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SMDJ20CA

Alpha & Omega Semiconductor Inc.In Stock: 29179SMDJ20CA Datasheet

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SMLJ20CA-TP

Micro Commercial CoIn Stock: 3738SMLJ20CA-TP Datasheet

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TV15C200JB-HF

Comchip TechnologyIn Stock: 1200TV15C200JB-HF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD214L-T20CALF is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 20V (all substitutes must match)
• Voltage - Breakdown (Min): 22.2V (all substitutes must match)
• Voltage - Clamping (Max) @ Ipp: 32.4V (all substitutes must match)
• Package / Case: DO-214AB, SMC (all substitutes must match)
• Mounting Type: Surface Mount (all substitutes must match)
• Bidirectional Channels: 1 (all substitutes must match)

Substitute parts are grouped into two categories based on peak pulse current and power dissipation:

Group A - Direct Electrical Equivalents (92.6A / 3kW): SMLJ20CA, SMDJ20CA, SMLJ20CA-TP. These parts maintain identical electrical performance to the original CD214L-T20CALF.

Group B - Enhanced Performance Alternatives (155A / 5kW): 5.0SMDJ20CA, 5.0SMDJ20CA-T7. These parts provide higher peak pulse current and power dissipation while maintaining all voltage parameters.

Group C - Reduced Performance Alternatives (46.3A / 1.5kW): SMCJ20CA, SMCJ20CA-TP, TV15C200JB-HF. These parts maintain voltage parameters but with lower current and power ratings.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents): SMLJ20CA (Bourns Inc., Active), SMDJ20CA (Alpha & Omega Semiconductor Inc., Active), and SMLJ20CA-TP (Micro Commercial Co, Active) are direct electrical and mechanical equivalents. All three maintain the original 92.6A peak pulse current and 3000W power dissipation. SMLJ20CA is the preferred choice as it originates from the original manufacturer. SMLJ20CA-TP offers an extended operating temperature range to 175°C.

Enhanced Performance Alternatives: 5.0SMDJ20CA (MDE Semiconductor Inc., Active) and 5.0SMDJ20CA-T7 (Littelfuse Inc., Active) provide superior current handling (155A) and power dissipation (5000W) while maintaining all voltage specifications. These are suitable for applications requiring higher transient energy absorption. 5.0SMDJ20CA-T7 extends the lower operating temperature limit to -65°C.

Reduced Performance Alternatives: SMCJ20CA (Fairchild Semiconductor, Active), SMCJ20CA-TP (Micro Commercial Co, Active), and TV15C200JB-HF (Comchip Technology, Active) maintain voltage parameters but operate at 46.3A peak pulse current and 1500W power dissipation. These are suitable only for applications with lower transient energy requirements. SMCJ20CA-TP offers extended temperature range to 175°C.

All substitute parts are RoHS3 compliant and available in active production status, ensuring long-term supply availability.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with lower peak pulse current (46.3A) in place of the CD214L-T20CALF (92.6A)?

A: Only if your application's transient energy requirements do not exceed 1500W peak pulse power. The reduced current rating provides less protection margin for high-energy transient events. Verify your circuit's actual transient specifications before selecting a reduced-performance substitute.

Q: Are the enhanced performance alternatives (155A / 5kW) backward compatible with the CD214L-T20CALF?

A: Yes. The 5.0SMDJ20CA and 5.0SMDJ20CA-T7 maintain identical voltage parameters and package specifications. They provide additional protection margin without affecting circuit operation. These are suitable for any application originally designed for the CD214L-T20CALF.

Q: What is the difference between SMLJ20CA and SMDJ20CA?

A: Both are direct electrical equivalents with identical voltage and current ratings. SMLJ20CA is manufactured by Bourns Inc. (original manufacturer), while SMDJ20CA is manufactured by Alpha & Omega Semiconductor Inc. Both are active products with equivalent performance.

Q: Does packaging format affect substitution?

A: All substitute parts use the DO-214AB (SMC) surface-mount package, ensuring mechanical compatibility. Packaging options (Tape & Reel, Cut Tape, Bulk) affect procurement and handling but not electrical performance or PCB placement.

Q: Which substitute offers the widest operating temperature range?

A: SMLJ20CA-TP and SMCJ20CA-TP both operate from -55°C to 175°C, compared to the original -55°C to 150°C range. 5.0SMDJ20CA-T7 extends the lower limit to -65°C while maintaining the 150°C upper limit.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant, meeting environmental and regulatory requirements equivalent to the original CD214L-T20CALF.