CD214L-T17CALF Equivalent & Substitute Parts

Part Overview

The CD214L-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 a 27.6V maximum clamping voltage and 106.6A peak pulse current capability in a DO-214AB (SMC) package. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD214L-T17CALF
Manufacturer	Bourns Inc.
Category	Transient Voltage Suppressors (TVS)
Package / Case	DO-214AB, SMC
Type	Zener
Bidirectional Channels	1
Voltage - Reverse Standoff (Typ)	17V
Voltage - Breakdown (Min)	18.9V
Voltage - Clamping (Max) @ Ipp	27.6V
Current - Peak Pulse (10/1000µs)	106.6A
Power - Peak Pulse	3000W (3kW)
Operating Temperature Range	-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 eligibility for the CD214L-T17CALF is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

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

Secondary Compatibility Factors:

Current - Peak Pulse (10/1000µs): Minimum 106.6A
Power - Peak Pulse: Minimum 3000W
Operating Temperature Range: Minimum -55°C to 150°C
RoHS3 Compliance
MSL Rating: 1 (Unlimited)

All substitute parts listed maintain identical voltage specifications and package form factor. Variations in peak pulse current and power dissipation are noted where applicable, as higher ratings provide enhanced protection margins without compromising circuit compatibility.

Parameter Comparison

Part Number	Manufacturer	VWM (Typ)	VBR (Min)	VC (Max)	Ipp (A)	Power (W)	Temp Range (°C)	Package	Status
CD214L-T17CALF	Bourns Inc.	17V	18.9V	27.6V	106.6	3000	-55 to 150	DO-214AB	Obsolete
SMLJ17CA	Bourns Inc.	17V	18.9V	27.6V	106.6	3000	-55 to 150	DO-214AB	Active
5.0SMDJ17CA	MDE Semiconductor Inc	17V	18.9V	27.6V	181	5000	-55 to 150	DO-214AB	Active
5.0SMDJ17CA-T7	Littelfuse Inc.	17V	18.9V	27.6V	181	5000	-65 to 150	DO-214AB	Active
SMCJ17CA-TP	Micro Commercial Co	17V	18.9V	27.6V	54.4	1500	-55 to 175	DO-214AB	Active
SMDJ17CA	Alpha & Omega Semiconductor Inc.	17V	18.9V	27.6V	108.7	3000	-55 to 150	DO-214AB	Active

Engineering Selection Recommendations

Direct Replacement (Highest Compatibility): SMLJ17CA (Bourns Inc.) is the primary recommended substitute. Manufactured by the original supplier, this part maintains identical electrical specifications and operating temperature range while offering active product status with superior inventory availability (1543 units in stock).

Equivalent Performance Substitutes: SMDJ17CA (Alpha & Omega Semiconductor Inc.) provides functionally equivalent performance with peak pulse current of 108.7A, closely matching the original 106.6A specification. This part is actively produced with extensive inventory (103,007 units) and maintains full RoHS3 compliance.

Enhanced Protection Alternatives: 5.0SMDJ17CA (MDE Semiconductor Inc.) and 5.0SMDJ17CA-T7 (Littelfuse Inc.) offer increased peak pulse current (181A) and power dissipation (5000W), providing superior transient protection margins. These parts are suitable for applications requiring enhanced overvoltage suppression capability. The Littelfuse variant extends the operating temperature range to -65°C, beneficial for extreme environment applications.

Lower Power Density Option: SMCJ17CA-TP (Micro Commercial Co) provides reduced peak pulse current (54.4A) and power dissipation (1500W). This part is suitable only for applications with lower transient energy requirements and should not be used as a direct replacement for the original specification without circuit re-evaluation.

All recommended substitutes maintain RoHS3 compliance and MSL-1 moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can SMCJ17CA-TP be used as a direct replacement for CD214L-T17CALF? A: SMCJ17CA-TP maintains identical voltage specifications and package form factor but provides only 54.4A peak pulse current versus the original 106.6A specification. This part is suitable only for applications with confirmed lower transient energy requirements. Circuit analysis is required before substitution.

Q: What is the primary advantage of 5.0SMDJ17CA and 5.0SMDJ17CA-T7 over the original part? A: Both parts provide 181A peak pulse current and 5000W power dissipation, compared to the original 106.6A and 3000W. This enhanced capability provides greater protection margins for transient suppression. The Littelfuse variant (5.0SMDJ17CA-T7) additionally supports operation to -65°C, extending the lower temperature limit by 10°C.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL-1 moisture sensitivity ratings, ensuring compatibility with current manufacturing standards and supply chain requirements.

Q: Why is SMLJ17CA recommended as the primary substitute? A: SMLJ17CA is manufactured by Bourns Inc., the original equipment manufacturer, with identical electrical specifications, operating temperature range, and power dissipation. Active product status and high inventory availability (1543 units) ensure reliable supply for production requirements.

Q: Can substitute parts with higher peak pulse current ratings be used interchangeably? A: Yes. Parts with higher current and power ratings (5.0SMDJ17CA, 5.0SMDJ17CA-T7) are fully compatible and provide enhanced protection. Lower-rated parts (SMCJ17CA-TP) require circuit verification before use.

Q: What packaging options are available for these substitutes? A: All substitute parts are supplied in DO-214AB (SMC) surface-mount package. Packaging formats vary by supplier: SMLJ17CA and SMDJ17CA are available in Tape & Reel; 5.0SMDJ17CA and 5.0SMDJ17CA-T7 are supplied in Tape & Reel; SMCJ17CA-TP is available in Tape & Reel format.

Q: Are there any compliance or certification differences between substitutes? A: All parts maintain ROHS3 compliance. REACH status varies: Bourns (SMLJ17CA) and Alpha & Omega (SMDJ17CA) are REACH Affected; MDE Semiconductor (5.0SMDJ17CA), Littelfuse (5.0SMDJ17CA-T7), and Micro Commercial Co (SMCJ17CA-TP) are REACH Unaffected. Verify REACH requirements for your specific application and supply chain.

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