CD214L-T5.0ALF Equivalent & Substitute Parts

Part Overview

The CD214L-T5.0ALF is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Bourns Inc., rated for 5V reverse standoff with 9.2V maximum clamping voltage. This component is designed for general-purpose overvoltage protection in surface mount applications using the DO-214AB (SMC) package. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

CD214L-T5.0ALF

Bourns Inc.In Stock: 1129CD214L-T5.0ALF Datasheet

Current PartRFQ

SMLJ5.0A

Bourns Inc.In Stock: 15505SMLJ5.0A Datasheet

DirectRFQ

3.0SMCJ5.0A-13

Diodes IncorporatedIn Stock: 94353.0SMCJ5.0A-13 Datasheet

SimilarRFQ

SM5908

STMicroelectronicsIn Stock: 5900SM5908 Datasheet

SimilarRFQ

SMCJ5.0A

EVVO SemiIn Stock: 47152SMCJ5.0A Datasheet

SimilarRFQ

SMCJ5.0A-TP

Micro Commercial CoIn Stock: 2325SMCJ5.0A-TP Datasheet

SimilarRFQ

SMCJ5.0A-TR

STMicroelectronicsIn Stock: 2686SMCJ5.0A-TR Datasheet

SimilarRFQ

SMCJ5V0A

Fairchild SemiconductorIn Stock: 4638SMCJ5V0A Datasheet

SimilarRFQ

SMDJ5.0A

Alpha & Omega Semiconductor Inc.In Stock: 1491SMDJ5.0A Datasheet

SimilarRFQ

SMLJ5.0A-TP

Micro Commercial CoIn Stock: 9315SMLJ5.0A-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD214L-T5.0ALF is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff: 5V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 9.2V (exact match required)
• Current - Peak Pulse (10/1000µs): 326A (exact match required)
• Power - Peak Pulse: 3000W (exact match required)
• Package / Case: DO-214AB, SMC (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Type: Zener, Unidirectional (exact match required)

Substitute parts are grouped into two categories:

Direct Equivalents meet all critical parameters exactly and are manufactured by the same or equivalent suppliers with active product status.

Similar Alternatives maintain the core voltage and package specifications but may have variations in peak pulse current or power dissipation ratings. These are suitable only when application requirements permit the specified deviations.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Full Electrical Equivalents):

SMLJ5.0A (Bourns Inc.) and SMLJ5.0A-TP (Micro Commercial Co) are direct functional equivalents with identical electrical specifications and active product status. Both maintain the 326A peak pulse current and 3000W power dissipation of the original part. SMLJ5.0A-TP includes tape and reel packaging for automated assembly.

3.0SMCJ5.0A-13 (Diodes Incorporated) and SMDJ5.0A (Alpha & Omega Semiconductor Inc.) provide equivalent electrical performance with 326.1A peak pulse current and 3000W power dissipation. Both are ROHS3 compliant and actively manufactured.

Secondary Substitutes (Reduced Performance):

SMCJ5.0A (EVVO Semi), SMCJ5.0A-TP (Micro Commercial Co), and SMCJ5V0A (Fairchild Semiconductor) maintain the 5V reverse standoff and 9.2V clamping voltage but operate at reduced peak pulse current (163A) and power dissipation (1500W). These are suitable only for applications with lower transient energy requirements.

Not Recommended:

SMCJ5.0A-TR (STMicroelectronics) exhibits a clamping voltage of 13.4V, which exceeds the original specification and may provide inadequate protection for circuits designed for 9.2V maximum clamping.

SM5908 (STMicroelectronics) operates at 8.5V clamping voltage with significantly reduced peak pulse current (120A) and power dissipation (1500W), making it unsuitable for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can SMLJ5.0A directly replace CD214L-T5.0ALF in existing designs?

A: Yes. SMLJ5.0A is manufactured by the same supplier (Bourns Inc.) and maintains identical electrical specifications: 5V reverse standoff, 9.2V clamping voltage, 326A peak pulse current, and 3000W power dissipation. The DO-214AB package and surface mount configuration are identical. No circuit modifications are required.

Q: What is the difference between SMLJ5.0A and SMLJ5.0A-TP?

A: Both parts are electrically identical. SMLJ5.0A-TP includes tape and reel packaging for automated pick-and-place assembly, while SMLJ5.0A is supplied in standard packaging. Selection depends on manufacturing process requirements.

Q: Why do some substitutes have lower peak pulse current ratings?

A: SMCJ5.0A, SMCJ5.0A-TP, and SMCJ5V0A are rated for 163A peak pulse current versus the original 326A specification. These parts are suitable only for applications where transient energy is lower than the original design specification. Verify application requirements before selection.

Q: Are all substitute parts RoHS3 compliant?

A: SMLJ5.0A, 3.0SMCJ5.0A-13, SMCJ5.0A-TP, SMDJ5.0A, and SMLJ5.0A-TP are confirmed ROHS3 compliant. Compliance status for SMCJ5.0A, SMCJ5.0A-TR, and SMCJ5V0A should be verified with the respective manufacturer.

Q: Can SMCJ5.0A-TR be used as a substitute?

A: SMCJ5.0A-TR is not recommended. Although it maintains the 5V reverse standoff voltage, the clamping voltage is 13.4V compared to the original 9.2V specification. This higher clamping voltage may provide insufficient protection for circuits designed for the lower threshold.

Q: What packaging options are available for high-volume production?

A: SMLJ5.0A-TP and SMCJ5.0A-TP are supplied in tape and reel format suitable for automated assembly. Standard cut tape and digi-reel options are available from multiple manufacturers including Diodes Incorporated and STMicroelectronics.