CD214L-T11CALF Equivalent & Substitute Parts

Part Overview

The CD214L-T11CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., rated for 11V reverse standoff with 18.2V clamping voltage and 164.8A peak pulse current in a surface mount SMC (DO-214AB) package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD214L-T11CALF
Manufacturer	Bourns Inc.
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Voltage - Reverse Standoff (Typ)	11V
Voltage - Breakdown (Min)	12.2V
Voltage - Clamping (Max) @ Ipp	18.2V
Current - Peak Pulse (10/1000µs)	164.8A
Power - Peak Pulse	3000W (3kW)
Package / Case	DO-214AB, SMC
Operating Temperature	-55°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the CD214L-T11CALF is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

Voltage - Reverse Standoff (Typ): 11V
Voltage - Breakdown (Min): 12.2V
Voltage - Clamping (Max) @ Ipp: 18.2V
Bidirectional Channels: 1
Type: Zener
Applications: General Purpose

Mechanical Compatibility Criteria:

Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount

Compliance Criteria:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are categorized into two groups:

Direct Equivalent (Full Electrical Match): Parts with identical peak pulse current (164.8A) and power dissipation (3000W), maintaining complete functional equivalence.

Compatible Substitute (Reduced Power Rating): Parts with lower peak pulse current (82.4A–82.5A) and power dissipation (1500W), suitable for applications where the full 3000W capability is not required, while maintaining voltage specifications and package compatibility.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Product Status	RoHS Status
CD214L-T11CALF	Bourns Inc.	11V	18.2V	164.8A	3000W	-55°C ~ 150°C	Obsolete	ROHS3 Compliant
SMLJ11CA	Bourns Inc.	11V	18.2V	164.8A	3000W	-55°C ~ 150°C	Active	ROHS3 Compliant
SMDJ11CA	Alpha & Omega Semiconductor Inc.	11V	18.2V	164.9A	3000W	-55°C ~ 150°C	Active	ROHS3 Compliant
SMDJ11CA-HR	Littelfuse Inc.	11V	18.2V	164.8A	3000W	-65°C ~ 150°C	Active	ROHS3 Compliant
SMCJ11CA	Good-Ark Semiconductor	11V	18.2V	82.4A	1500W	-55°C ~ 150°C	Active	ROHS3 Compliant
SMCJ11CA-13-F	Diodes Incorporated	11V	18.2V	82.4A	1500W	-55°C ~ 150°C	Active	ROHS3 Compliant
SMCJ11CA-HR	Littelfuse Inc.	11V	18.2V	82.5A	1500W	-65°C ~ 150°C	Active	ROHS3 Compliant
SMCJ11CA-HRA	Littelfuse Inc.	11V	18.2V	82.5A	1500W	-65°C ~ 150°C	Active	ROHS3 Compliant
SMCJ11CA-HRAT7	Littelfuse Inc.	11V	18.2V	82.5A	1500W	-65°C ~ 150°C	Active	ROHS3 Compliant
SMCJ11CA-TP	Micro Commercial Co	11V	18.2V	82.5A	1500W	-55°C ~ 175°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Selection (Direct Equivalent):

SMLJ11CA (Bourns Inc.) is the recommended primary substitute. It maintains identical electrical specifications (164.8A peak pulse current, 3000W power dissipation) and operating temperature range (-55°C ~ 150°C) as the obsolete CD214L-T11CALF. As an active product from the original manufacturer, it provides design continuity and supply chain stability. ROHS3 compliance and MSL 1 rating are maintained.

SMDJ11CA (Alpha & Omega Semiconductor Inc.) provides equivalent performance with 164.9A peak pulse current and 3000W power dissipation. Active product status and ROHS3 compliance support long-term availability.

SMDJ11CA-HR (Littelfuse Inc.) offers identical electrical specifications with extended lower operating temperature limit (-65°C ~ 150°C), suitable for applications requiring enhanced cold-temperature performance. Active status and ROHS3 compliance are confirmed.

Secondary Selection (Compatible Substitute with Reduced Power Rating):

SMCJ11CA (Good-Ark Semiconductor), SMCJ11CA-13-F (Diodes Incorporated), SMCJ11CA-HR (Littelfuse Inc.), SMCJ11CA-HRA (Littelfuse Inc.), and SMCJ11CA-HRAT7 (Littelfuse Inc.) are compatible substitutes with 82.4A–82.5A peak pulse current and 1500W power dissipation. These parts maintain voltage specifications (11V standoff, 18.2V clamping) and package compatibility but are suitable only for applications where peak pulse current and power dissipation requirements do not exceed their ratings.

SMCJ11CA-TP (Micro Commercial Co) extends the upper operating temperature to 175°C, providing thermal margin for high-temperature environments while maintaining 1500W power dissipation.

All substitute parts are ROHS3 compliant with MSL 1 rating, ensuring regulatory and environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can SMCJ11CA series parts directly replace CD214L-T11CALF in all applications?

A: SMCJ11CA series parts are mechanically and electrically compatible in package and voltage specifications but have reduced peak pulse current (82.4A–82.5A) and power dissipation (1500W) compared to the original 164.8A and 3000W. Substitution is valid only if the application does not require the full 3000W power handling capability. Review circuit transient energy requirements before selection.

Q: What is the difference between SMLJ11CA and SMDJ11CA?

A: Both parts provide identical electrical specifications (164.8A–164.9A peak pulse current, 3000W power dissipation, 11V standoff, 18.2V clamping). SMLJ11CA is manufactured by Bourns Inc. (original manufacturer), while SMDJ11CA is manufactured by Alpha & Omega Semiconductor Inc. Both are active products with ROHS3 compliance. Selection may be based on supply availability or preferred supplier qualification.

Q: Are all substitute parts available in the same SMC (DO-214AB) package?

A: Yes. All listed substitute parts use the DO-214AB (SMC) surface mount package, ensuring mechanical and PCB layout compatibility with the original CD214L-T11CALF.

Q: What is the significance of the temperature range difference between -55°C ~ 150°C and -65°C ~ 150°C?

A: Parts rated to -65°C (SMDJ11CA-HR, SMCJ11CA-HR, SMCJ11CA-HRA, SMCJ11CA-HRAT7) provide extended lower temperature operation. Selection depends on application environment. Standard -55°C rating is sufficient for most commercial and industrial applications.

Q: Can SMCJ11CA-TP be used in high-temperature applications?

A: SMCJ11CA-TP extends the upper operating temperature to 175°C (compared to 150°C for most alternatives), making it suitable for high-temperature environments. However, it maintains the reduced 1500W power dissipation rating. Verify that both temperature and power requirements are satisfied before selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, meeting regulatory requirements equivalent to the original CD214L-T11CALF.

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