CD214L-T58ALF Equivalent & Substitute Parts

Part Overview

The CD214L-T58ALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., classified as a unidirectional Zener-type device in the DO-214AB (SMC) surface mount package. This component is designed for general-purpose overvoltage protection applications with a 58V reverse standoff voltage and 93.6V maximum clamping voltage at peak pulse current. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	58V
Voltage - Breakdown (Min)	64.4V
Voltage - Clamping (Max) @ Ipp	93.6V
Current - Peak Pulse (10/1000µs)	32A
Power - Peak Pulse	3000W (3kW)
Package / Case	DO-214AB, SMC
Operating Temperature	-55°C ~ 150°C (TJ)
Type	Zener, Unidirectional
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the CD214L-T58ALF are grouped based on strict electrical and mechanical parameter compatibility:

Primary Substitution Criteria:

Voltage - Reverse Standoff: 58V (exact match required)
Voltage - Breakdown (Min): 64.4V (exact match required)
Voltage - Clamping (Max) @ Ipp: 93.6V (exact match required)
Package / Case: DO-214AB, SMC (exact match required)
Type: Zener, Unidirectional (exact match required)
RoHS Status: ROHS3 Compliant (compliance requirement)

Secondary Consideration:

Current - Peak Pulse (10/1000µs): Substitutes with ≥32A are electrically compatible; higher ratings provide enhanced protection margin
Power - Peak Pulse: Substitutes with ≥3000W are electrically compatible; higher ratings provide enhanced protection margin
Operating Temperature: Substitutes with extended or equivalent ranges are compatible

Parts are categorized as direct equivalents (matching all primary criteria) or similar substitutes (matching voltage and package specifications with variations in current handling or power dissipation).

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package	Product Status
CD214L-T58ALF	Bourns Inc.	58V	64.4V	93.6V	32A	3000W	-55°C ~ 150°C	DO-214AB, SMC	Obsolete
SMLJ58A	Bourns Inc.	58V	64.4V	93.6V	32A	3000W	-55°C ~ 150°C	DO-214AB, SMC	Active
3.0SMCJ58A-13	Diodes Incorporated	58V	64.4V	93.6V	32.1A	3000W	-55°C ~ 175°C	DO-214AB, SMC	Active
5.0SMDJ58A	Taiwan Semiconductor Corporation	58V	64.4V	93.6V	54.6A	5000W	-55°C ~ 175°C	DO-214AB, SMC	Active
5.0SMDJ58A-T7	Littelfuse Inc.	58V	64.4V	93.6V	54.6A	5000W	-65°C ~ 150°C	DO-214AB, SMC	Active
SMCJ58A	MDD	58V	64.4V	93.6V	16.1A	1500W	-50°C ~ 150°C	DO-214AB, SMC	Active
SMCJ58A-TP	Micro Commercial Co	58V	64.4V	93.6V	16.1A	1500W	-55°C ~ 175°C	DO-214AB, SMC	Active
SMDJ58A	Alpha & Omega Semiconductor Inc.	58V	64.4V	93.6V	32.1A	3000W	-55°C ~ 150°C	DO-214AB, SMC	Active
SMDJ58A-HR	Littelfuse Inc.	58V	64.4V	93.6V	32.1A	3000W	-65°C ~ 150°C	DO-214AB, SMC	Active
SMDJ58A-HRA	Littelfuse Inc.	58V	64.4V	93.6V	32.1A	3000W	-65°C ~ 150°C	DO-214AB, SMC	Active

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Replacement): SMLJ58A from Bourns Inc. is the direct equivalent to CD214L-T58ALF. This part matches all electrical parameters (58V standoff, 64.4V breakdown, 93.6V clamping, 32A peak pulse, 3000W peak power) and maintains identical operating temperature range (-55°C ~ 150°C). The part is manufactured by the same supplier as the original component and carries active product status with ROHS3 compliance and unlimited moisture sensitivity rating.

Compatible Substitutes with Equivalent Current Handling: SMDJ58A (Alpha & Omega Semiconductor Inc.), SMDJ58A-HR (Littelfuse Inc.), and SMDJ58A-HRA (Littelfuse Inc.) provide electrical equivalence with 32.1A peak pulse current and 3000W peak power. These parts maintain the 58V/64.4V/93.6V voltage specifications and DO-214AB package. SMDJ58A-HR and SMDJ58A-HRA extend the lower operating temperature limit to -65°C. All three carry active product status and ROHS3 compliance.

3.0SMCJ58A-13 from Diodes Incorporated provides electrical equivalence with 32.1A peak pulse current and extends the upper operating temperature to 175°C, offering enhanced thermal performance while maintaining all voltage specifications and DO-214AB packaging.

Compatible Substitutes with Enhanced Current Handling: 5.0SMDJ58A (Taiwan Semiconductor Corporation) and 5.0SMDJ58A-T7 (Littelfuse Inc.) provide higher current capacity (54.6A peak pulse) and power dissipation (5000W peak power) while maintaining identical voltage specifications (58V/64.4V/93.6V) and DO-214AB packaging. These parts are suitable for applications requiring additional protection margin. 5.0SMDJ58A-T7 extends the lower operating temperature to -65°C.

Compatible Substitutes with Reduced Current Handling: SMCJ58A (MDD) and SMCJ58A-TP (Micro Commercial Co) provide lower current capacity (16.1A peak pulse) and power dissipation (1500W peak power) while maintaining identical voltage specifications. These parts are suitable only for applications with lower transient current requirements. SMCJ58A-TP extends the upper operating temperature to 175°C.

All substitute parts listed carry ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can SMLJ58A directly replace CD214L-T58ALF without circuit modification? A: Yes. SMLJ58A is a direct equivalent with identical electrical specifications (58V standoff, 64.4V breakdown, 93.6V clamping, 32A peak pulse, 3000W peak power) and DO-214AB package. No circuit modification is required.

Q: What is the difference between 3000W and 5000W rated TVS diodes in this voltage class? A: The 3000W and 5000W ratings refer to peak pulse power dissipation capability. Both maintain identical voltage clamping characteristics (93.6V maximum). The 5000W variants (5.0SMDJ58A, 5.0SMDJ58A-T7) handle higher transient current (54.6A versus 32A) and provide additional protection margin for high-energy transient events. Selection depends on the application's transient energy profile.

Q: Are the 1500W rated parts (SMCJ58A, SMCJ58A-TP) suitable replacements? A: The 1500W parts maintain identical voltage specifications but handle lower peak pulse current (16.1A versus 32A). These are suitable only if the application's transient current requirement does not exceed 16.1A. For applications designed around the original 32A specification, these parts provide reduced protection margin.

Q: What is the significance of the -HR and -HRA suffixes on Littelfuse parts? A: The -HR and -HRA designations indicate Littelfuse product variants within the SMDJ series. Both SMDJ58A-HR and SMDJ58A-HRA maintain identical electrical specifications (32.1A peak pulse, 3000W peak power, 58V/64.4V/93.6V voltages) and extend the lower operating temperature limit to -65°C compared to the standard -55°C minimum.

Q: Can I use a substitute part with extended temperature range (-65°C to 175°C) in place of the original (-55°C to 150°C)? A: Yes. Extended temperature ranges are backward compatible. Parts with wider operating temperature specifications (such as 3.0SMCJ58A-13, 5.0SMDJ58A, or SMCJ58A-TP) can be used in applications designed for the original temperature range without modification.

Q: Are all listed substitutes ROHS3 compliant? A: Yes. All substitute parts listed carry ROHS3 compliance certification, matching the original CD214L-T58ALF specification.

Q: What packaging format should I specify for procurement? A: All parts use DO-214AB (SMC) surface mount package. Packaging format (Tape & Reel or bulk) depends on procurement volume and assembly requirements. Verify packaging availability with your supplier.

Q: Why is CD214L-T58ALF marked as obsolete? A: The original part is obsolete, but functionally equivalent active alternatives are available. SMLJ58A from Bourns Inc. is the recommended direct replacement with identical specifications and active product status.

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