CD214C-T85CALF Equivalent & Substitute Parts

Part Overview

The CD214C-T85CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features an 85V reverse standoff voltage with a 137V maximum clamping voltage and 10.4A peak pulse current capability in a DO-214AB (SMC) package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	85V
Voltage - Breakdown (Min)	94.4V
Voltage - Clamping (Max) @ Ipp	137V
Current - Peak Pulse (10/1000µs)	10.4A
Power - Peak Pulse	1500W
Package / Case	DO-214AB, SMC
Operating Temperature Range	-55°C ~ 150°C (TJ)
Type	Zener
Bidirectional Channels	1
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution for the CD214C-T85CALF is determined by strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

Voltage - Reverse Standoff: 85V (exact match required)
Voltage - Clamping (Max) @ Ipp: 137V (exact match required)
Package / Case: DO-214AB, SMC (exact match required)
Mounting Type: Surface Mount (exact match required)
Type: Zener, Bidirectional (exact match required)

Secondary Consideration:

Current - Peak Pulse (10/1000µs): Parts with equal or greater current rating are acceptable
Power - Peak Pulse: Parts with equal or greater power dissipation are acceptable
Operating Temperature Range: Parts with equal or wider temperature range are acceptable

Substitute parts are grouped into two categories:

Direct Equivalents (1500W Power Class): Parts matching all primary criteria with current ratings of 10.4A to 11A and power dissipation of 1500W. These provide pin-for-pin and functional equivalence.

Higher-Capacity Alternatives (5000W Power Class): Parts matching all primary criteria but with significantly higher current ratings (36.5A) and power dissipation (5000W). These provide enhanced protection capability while maintaining electrical and mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Clamping (Max)	Current - Peak Pulse	Power - Peak Pulse	Package	Operating Temp Range	Product Status
CD214C-T85CALF	Bourns Inc.	85V	137V	10.4A	1500W	DO-214AB, SMC	-55°C ~ 150°C	Obsolete
SMCJ85CA	Fairchild Semiconductor	85V	137V	11A	1500W	DO-214AB, SMC	-55°C ~ 150°C	Active
SMCJ85CA-13-F	Diodes Incorporated	85V	137V	10.4A	1500W	DO-214AB, SMC	-55°C ~ 150°C	Active
SMCJ85CA-HR	Littelfuse Inc.	85V	137V	11A	1500W	DO-214AB, SMC	-65°C ~ 150°C	Active
SMCJ85CA-HRA	Littelfuse Inc.	85V	137V	11A	1500W	DO-214AB, SMC	-65°C ~ 150°C	Active
SMCJ85CA-HRAT7	Littelfuse Inc.	85V	137V	11A	1500W	DO-214AB, SMC	-65°C ~ 150°C	Active
5.0SMDJ85CA	MDE Semiconductor Inc	85V	137V	36.5A	5000W	DO-214AB, SMC	-55°C ~ 150°C	Active
5.0SMDJ85CA-T7	Littelfuse Inc.	85V	137V	36.5A	5000W	DO-214AB, SMC	-65°C ~ 150°C	Active
5.0SMLJ85CA-TP	Micro Commercial Co	85V	137V	36.5A	5000W	DO-214AB, SMC	-55°C ~ 175°C	Active

Engineering Selection Recommendations

For Direct Replacement (1500W Class):

SMCJ85CA-13-F (Diodes Incorporated) provides the most direct functional equivalent to CD214C-T85CALF, matching all electrical parameters and operating temperature range while maintaining active product status. This part is ROHS3 compliant and carries MSL 1 rating.

SMCJ85CA (Fairchild Semiconductor) offers an alternative direct replacement with marginally higher current rating (11A vs 10.4A) and active status. Inventory availability is substantial at 6526 units.

Littelfuse SMCJ85CA-HR, SMCJ85CA-HRA, and SMCJ85CA-HRAT7 variants provide direct electrical equivalence with extended lower operating temperature limit (-65°C vs -55°C), suitable for applications requiring enhanced cold-temperature performance. All three variants are ROHS3 compliant with active product status.

For Enhanced Protection (5000W Class):

5.0SMDJ85CA (MDE Semiconductor Inc), 5.0SMDJ85CA-T7 (Littelfuse Inc.), and 5.0SMLJ85CA-TP (Micro Commercial Co) provide higher current and power dissipation capability (36.5A, 5000W) while maintaining identical voltage specifications and DO-214AB package compatibility. These parts are suitable for applications requiring increased transient energy absorption. All three are ROHS3 compliant with active product status.

5.0SMLJ85CA-TP offers the widest operating temperature range (-55°C ~ 175°C), providing additional thermal margin for demanding applications.

All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the original CD214C-T85CALF.

Frequently Asked Questions (FAQ)

Q: Can SMCJ85CA-13-F be used as a direct replacement for CD214C-T85CALF?

A: Yes. SMCJ85CA-13-F matches all critical electrical parameters (85V standoff, 137V clamping, 10.4A peak pulse current, 1500W power dissipation) and package specification (DO-214AB, SMC). Operating temperature range is identical (-55°C ~ 150°C). The part is active and ROHS3 compliant.

Q: What is the difference between the 1500W and 5000W substitute options?

A: The 1500W class (SMCJ85CA variants) maintains the original current and power specifications (10.4A to 11A, 1500W). The 5000W class (5.0SMDJ and 5.0SMLJ variants) provides higher current handling (36.5A) and power dissipation (5000W) while maintaining identical voltage protection levels. Both classes are electrically and mechanically compatible with the original part.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the DO-214AB (SMC) surface-mount package, ensuring mechanical and PCB layout compatibility with the original CD214C-T85CALF.

Q: Do the Littelfuse SMCJ85CA-HR variants offer any advantage over standard SMCJ85CA?

A: The Littelfuse variants (SMCJ85CA-HR, SMCJ85CA-HRA, SMCJ85CA-HRAT7) extend the lower operating temperature limit to -65°C compared to -55°C for the standard SMCJ85CA. This provides enhanced performance in cold-temperature environments. Electrical specifications remain identical.

Q: Which substitute part has the widest operating temperature range?

A: 5.0SMLJ85CA-TP (Micro Commercial Co) offers the widest operating temperature range at -55°C ~ 175°C, compared to -55°C ~ 150°C for the original CD214C-T85CALF and most alternatives. This extended upper temperature limit provides additional thermal margin for high-temperature applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance requirements of the original CD214C-T85CALF.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message