CD214C-T5.0ALF Equivalent & Substitute Parts

Part Overview

The CD214C-T5.0ALF is a 5V Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose transient protection applications. This unidirectional zener diode features a 9.2V maximum clamping voltage and 163A peak pulse current capability in a surface-mount SMC (DO-214AB) package. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD214C-T5.0ALF
Manufacturer	Bourns Inc.
Category	Transient Voltage Suppressors (TVS)
Product Status	Obsolete
Type	Zener
Unidirectional Channels	1
Voltage - Reverse Standoff (Typ)	5V
Voltage - Breakdown (Min)	6.4V
Voltage - Clamping (Max) @ Ipp	9.2V
Current - Peak Pulse (10/1000µs)	163A
Power - Peak Pulse	1500W (1.5kW)
Operating Temperature	-55°C ~ 150°C (TJ)
Package / Case	DO-214AB, SMC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD214C-T5.0ALF is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

Voltage - Reverse Standoff (Typ): 5V
Voltage - Clamping (Max) @ Ipp: 9.2V
Current - Peak Pulse (10/1000µs): 163A
Power - Peak Pulse: 1500W (1.5kW)
Package / Case: DO-214AB, SMC
Unidirectional Channels: 1
Type: Zener

Direct Equivalents maintain all critical electrical parameters and identical peak pulse current ratings. These parts are pin-compatible and functionally interchangeable without circuit modification.

Similar Alternatives maintain voltage specifications and package compatibility but may differ in peak pulse current capability or clamping voltage. These require circuit-level evaluation to confirm suitability for the intended application.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	RoHS Status
CD214C-T5.0ALF	Bourns Inc.	Obsolete	5V	9.2V	163A	1500W	-55°C ~ 150°C	DO-214AB, SMC	ROHS3 Compliant
SMCJ5.0A	EVVO Semi	Active	5V	9.2V	163A	1500W	-55°C ~ 150°C	DO-214AB, SMC	ROHS3 Compliant
3.0SMCJ5.0A-13	Diodes Incorporated	Active	5V	9.2V	326.1A	3000W	-55°C ~ 150°C	DO-214AB, SMC	ROHS3 Compliant
SM5908	STMicroelectronics	Active	5V	8.5V	120A (8/20µs)	1500W	-55°C ~ 175°C	DO-214AB, SMC	ROHS3 Compliant
SMCJ5.0A-HR	Littelfuse Inc.	Active	5V	9.2V	163A	1500W	-65°C ~ 150°C	DO-214AB, SMC	ROHS3 Compliant
SMCJ5.0A-HRA	Littelfuse Inc.	Active	5V	9.2V	163A	1500W	-65°C ~ 150°C	DO-214AB, SMC	ROHS3 Compliant
SMCJ5.0A-HRAT7	Littelfuse Inc.	Active	5V	9.2V	163A	1500W	-65°C ~ 150°C	DO-214AB, SMC	ROHS3 Compliant
SMCJ5.0A-M3/57T	Vishay General Semiconductor - Diodes Division	Active	5V	9.2V	163A	1500W	-55°C ~ 150°C	DO-214AB, SMC	ROHS3 Compliant
SMCJ5.0A-M3/9AT	Vishay General Semiconductor - Diodes Division	Active	5V	9.2V	163A	1500W	-55°C ~ 150°C	DO-214AB, SMC	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents (Recommended Primary Substitutes):

SMCJ5.0A (EVVO Semi), SMCJ5.0A-M3/57T (Vishay), and SMCJ5.0A-M3/9AT (Vishay) provide complete electrical and mechanical equivalence to the CD214C-T5.0ALF. All three maintain identical voltage specifications, peak pulse current ratings, and power dissipation. These parts are active products with ROHS3 compliance and MSL 1 rating, ensuring long-term availability and environmental compliance.

Extended Temperature Range Alternative:

SMCJ5.0A-HR, SMCJ5.0A-HRA, and SMCJ5.0A-HRAT7 (Littelfuse) offer identical electrical performance with extended lower operating temperature range (-65°C minimum versus -55°C). These are suitable for applications requiring enhanced cold-temperature performance while maintaining all other specifications.

Higher Current Capability Alternative:

3.0SMCJ5.0A-13 (Diodes Incorporated) maintains voltage specifications but provides doubled peak pulse current (326.1A) and power dissipation (3000W). This part is suitable for applications requiring enhanced transient protection margin, though it represents over-specification for circuits designed around 163A capability.

Lower Current Alternative:

SM5908 (STMicroelectronics, Transil™ series) maintains 5V standoff voltage and 1500W power rating but features reduced peak pulse current (120A) and slightly lower clamping voltage (8.5V). This part is suitable only for applications with reduced transient current requirements.

Frequently Asked Questions (FAQ)

Q: Can SMCJ5.0A directly replace CD214C-T5.0ALF without circuit modification?

A: Yes. SMCJ5.0A maintains identical electrical specifications: 5V standoff voltage, 9.2V clamping voltage, 163A peak pulse current, and 1500W power dissipation. The DO-214AB package is pin-compatible. No circuit changes are required.

Q: What is the difference between SMCJ5.0A-M3/57T and SMCJ5.0A-M3/9AT?

A: Both parts are electrically identical with matching voltage and current ratings. The suffix designations indicate different packaging configurations (tape and reel specifications). Selection depends on procurement and assembly requirements rather than electrical performance.

Q: Why would I select 3.0SMCJ5.0A-13 over SMCJ5.0A?

A: 3.0SMCJ5.0A-13 provides doubled peak pulse current (326.1A) and power dissipation (3000W) while maintaining identical voltage specifications. This is appropriate for circuits requiring enhanced transient protection margin or where future design upgrades may increase transient stress levels.

Q: Is SM5908 a suitable replacement?

A: SM5908 is not a direct equivalent. While it maintains 5V standoff voltage and DO-214AB packaging, it features reduced peak pulse current (120A versus 163A) and lower clamping voltage (8.5V versus 9.2V). Use only if circuit analysis confirms reduced transient current requirements.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 rating, matching the environmental and moisture sensitivity specifications of the original CD214C-T5.0ALF.

Q: What is the temperature range difference between Littelfuse and other manufacturers?

A: Littelfuse SMCJ5.0A-HR, SMCJ5.0A-HRA, and SMCJ5.0A-HRAT7 specify -65°C minimum operating temperature versus -55°C for other equivalents. This extended range is beneficial for applications in extreme cold environments but is not required for standard industrial temperature ranges.

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