CD214C-T17CALF Equivalent & Substitute Parts

Part Overview

The CD214C-T17CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface mount applications. This component features a 17V reverse standoff voltage with 27.6V clamping capability and 53.3A peak pulse current rating 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
Manufacturer Part Number	CD214C-T17CALF
Manufacturer	Bourns Inc.
Category	Transient Voltage Suppressors (TVS)
Package / Case	DO-214AB, SMC
Voltage - Reverse Standoff (Typ)	17V
Voltage - Breakdown (Min)	18.9V
Voltage - Clamping (Max) @ Ipp	27.6V
Current - Peak Pulse (10/1000µs)	53.3A
Power - Peak Pulse	1500W
Type	Zener
Bidirectional Channels	1
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the CD214C-T17CALF is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - Reverse Standoff (Typ): 17V
Voltage - Breakdown (Min): 18.9V
Voltage - Clamping (Max) @ Ipp: 27.6V
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Type: Zener
Bidirectional Channels: 1

Acceptable Variation Parameters:

Current - Peak Pulse (10/1000µs): 53.3A or higher
Power - Peak Pulse: 1500W or higher
Operating Temperature: Must encompass -55°C minimum and 150°C maximum
Product Status: Active preferred for long-term availability

Substitute parts are grouped into two categories:

Direct Equivalents: Parts with identical electrical specifications and current/power ratings matching or exceeding the original.

Similar Equivalents: Parts with identical voltage specifications and package but higher current/power ratings, suitable for applications requiring enhanced transient protection margin.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Clamping @ Ipp	Current - Peak Pulse	Power - Peak Pulse	Operating Temperature	Product Status	Package
CD214C-T17CALF	Bourns Inc.	17V	27.6V	53.3A	1500W	-55°C ~ 150°C	Obsolete	DO-214AB, SMC
SMCJ17CA	Fairchild Semiconductor	17V	27.6V	Not specified	Not specified	Not specified	Active	Not specified
5.0SMDJ17CA	MDE Semiconductor Inc	17V	27.6V	181A	5000W	-55°C ~ 150°C	Active	DO-214AB, SMC
5.0SMDJ17CA-T7	Littelfuse Inc.	17V	27.6V	181A	5000W	-65°C ~ 150°C	Active	DO-214AB, SMC
SMCJ17CA-HR	Littelfuse Inc.	17V	27.6V	54.4A	1500W	-65°C ~ 150°C	Active	DO-214AB, SMC
SMCJ17CA-HRA	Littelfuse Inc.	17V	27.6V	54.4A	1500W	-65°C ~ 150°C	Active	DO-214AB, SMC
SMCJ17CA-HRAT7	Littelfuse Inc.	17V	27.6V	54.4A	1500W	-65°C ~ 150°C	Active	DO-214AB, SMC
SMCJ17CA-TP	Micro Commercial Co	17V	27.6V	54.4A	1500W	-55°C ~ 175°C	Active	DO-214AB, SMC
SMDJ17CA	Alpha & Omega Semiconductor Inc.	17V	27.6V	108.7A	3000W	-55°C ~ 150°C	Active	DO-214AB, SMC

Engineering Selection Recommendations

All identified substitute parts maintain the critical voltage specifications (17V reverse standoff, 27.6V clamping) and package format (DO-214AB, SMC) required for direct functional replacement of the CD214C-T17CALF.

For Direct Replacement with Equivalent Performance: SMCJ17CA-HR, SMCJ17CA-HRA, and SMCJ17CA-HRAT7 (all Littelfuse Inc.) provide the closest electrical match with 54.4A peak pulse current and 1500W power rating. These parts are active products with ROHS3 compliance and unlimited moisture sensitivity rating. The extended operating temperature range (-65°C ~ 150°C) provides additional thermal margin compared to the original specification.

For Enhanced Protection Margin: SMDJ17CA (Alpha & Omega Semiconductor Inc.) offers 108.7A peak pulse current and 3000W power rating while maintaining identical voltage specifications and package format. This part is suitable for applications requiring increased transient suppression capability.

For Extended Temperature Range: SMCJ17CA-TP (Micro Commercial Co) extends the upper operating temperature to 175°C, providing thermal headroom for high-temperature environments while maintaining the 54.4A / 1500W rating.

All substitute parts listed carry ROHS3 compliance and EAR99 export classification, matching the regulatory status of the original component.

Frequently Asked Questions (FAQ)

Q: Can SMCJ17CA-HR replace CD214C-T17CALF directly? A: Yes. Both parts share identical voltage specifications (17V reverse standoff, 27.6V clamping), package format (DO-214AB, SMC), and power rating (1500W). The SMCJ17CA-HR has a marginally higher peak pulse current (54.4A vs 53.3A) and extended temperature range (-65°C vs -55°C minimum), making it a direct functional replacement.

Q: What is the difference between SMCJ17CA-HR, SMCJ17CA-HRA, and SMCJ17CA-HRAT7? A: These three Littelfuse parts are electrically identical with matching voltage, current, and power specifications. The designations reflect different packaging or tape configurations. All three are suitable replacements for the CD214C-T17CALF.

Q: Why would I choose SMDJ17CA over SMCJ17CA-HR? A: SMDJ17CA provides higher peak pulse current (108.7A) and power dissipation (3000W) while maintaining identical voltage specifications. This higher rating offers increased protection margin for transient events but may not be necessary if the original 1500W specification is adequate for the application.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed carry ROHS3 compliance certification, matching the environmental compliance status of the original CD214C-T17CALF.

Q: Does operating temperature range affect substitution compatibility? A: Operating temperature range does not prevent substitution. All substitute parts encompass or exceed the original -55°C to 150°C specification. Parts with extended ranges (such as SMCJ17CA-TP at -55°C ~ 175°C) provide additional thermal margin without affecting electrical compatibility.

Q: Is the SMCJ17CA from Fairchild Semiconductor a suitable replacement? A: SMCJ17CA matches the voltage specifications and package format. However, detailed electrical specifications (current and power ratings) are not provided in the available data. Verification against the original 53.3A / 1500W specification is recommended before selection.

Q: Can I use a higher-rated part like 5.0SMDJ17CA in place of the original? A: Yes. The 5.0SMDJ17CA maintains identical voltage specifications and package format with significantly higher current (181A) and power (5000W) ratings. This provides enhanced transient protection capability and is electrically compatible with the original circuit design.

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