CD214L-T16ALF Equivalent & Substitute Parts

Part Overview

The CD214L-T16ALF is a 16V unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Bourns Inc., housed in a DO-214AB (SMC) surface mount package. This component is designed for general-purpose transient voltage protection applications, offering a 26V maximum clamping voltage and 115.4A peak pulse current capability with 3000W peak pulse power dissipation. The part is currently listed as obsolete, making identification of active equivalent and substitute components essential for ongoing design support and procurement.

Substiute Parts

CD214L-T16ALF

Bourns Inc.In Stock: 1110CD214L-T16ALF Datasheet

Current PartRFQ

SMLJ16A

Bourns Inc.In Stock: 6205SMLJ16A Datasheet

DirectRFQ

5.0SMDJ16A

Taiwan Semiconductor CorporationIn Stock: 94285.0SMDJ16A Datasheet

SimilarRFQ

5.0SMDJ16A-T7

Littelfuse Inc.In Stock: 11875.0SMDJ16A-T7 Datasheet

SimilarRFQ

SMCJ16A

EVVO SemiIn Stock: 607732SMCJ16A Datasheet

SimilarRFQ

SMCJ16A

EVVO SemiIn Stock: 607732SMCJ16A Datasheet

SimilarRFQ

SMCJ16A-TP

Micro Commercial CoIn Stock: 4106SMCJ16A-TP Datasheet

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SMDJ16A

Alpha & Omega Semiconductor Inc.In Stock: 1978SMDJ16A Datasheet

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TPSMC20A

Littelfuse Inc.In Stock: 4072TPSMC20A Datasheet

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TPSMC22A

Littelfuse Inc.In Stock: 1316TPSMC22A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD214L-T16ALF is determined by strict electrical and mechanical parameter matching within the TVS diode category. The critical parameters governing substitution are:

Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 16V
• Voltage - Breakdown (Min): 17.8V
• Voltage - Clamping (Max) @ Ipp: 26V
• Current - Peak Pulse (10/1000µs): 115.4A minimum
• Power - Peak Pulse: 3000W minimum

Mechanical Parameters:

• Package / Case: DO-214AB, SMC (surface mount)
• Mounting Type: Surface Mount
• Unidirectional Channels: 1

Substitute parts are grouped into two categories based on parameter alignment:

Direct Equivalents (Identical Electrical & Mechanical Parameters): Parts matching all critical electrical specifications (16V standoff, 26V clamp, 115.4A peak pulse, 3000W power) and identical DO-214AB SMC packaging.

Similar Substitutes (Electrical Tolerance Within Specification): Parts with identical voltage parameters (16V standoff, 26V clamp) but higher peak pulse current (193A) and power dissipation (5000W), or lower peak pulse current (57.7A) and power (600W or 1500W). These remain functionally compatible for general-purpose protection applications where the original 115.4A specification is not a limiting constraint.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SMLJ16A (Bourns Inc.)

The SMLJ16A is the direct equivalent replacement for the obsolete CD214L-T16ALF. Both parts are manufactured by Bourns Inc. and share identical electrical specifications: 16V reverse standoff voltage, 17.8V minimum breakdown voltage, 26V maximum clamping voltage, 115.4A peak pulse current, and 3000W peak pulse power. The SMLJ16A is packaged in DO-214AB SMC format with identical operating temperature range (-55°C to 150°C). The part is currently in active production status with 6100 units in stock. RoHS3 compliance and MSL 1 rating match the original specification.

Secondary Recommendation: SMDJ16A (Alpha & Omega Semiconductor Inc.)

The SMDJ16A provides identical electrical performance to the CD214L-T16ALF with matching 16V standoff, 26V clamp, 115.4A peak pulse current, and 3000W power dissipation. Packaged in DO-214AB SMC format with -55°C to 150°C operating range. This part is actively produced with 1884 units available. RoHS3 compliant and REACH unaffected. Selection of this part is appropriate where Bourns supply is constrained.

Higher Power Alternative: 5.0SMDJ16A or 5.0SMDJ16A-T7

Both the Taiwan Semiconductor Corporation 5.0SMDJ16A and Littelfuse 5.0SMDJ16A-T7 maintain identical voltage specifications (16V standoff, 26V clamp) but provide enhanced current handling (193A peak pulse) and power dissipation (5000W). These parts are suitable for applications requiring higher transient energy absorption. The 5.0SMDJ16A-T7 extends the lower operating temperature limit to -65°C. Both are in active production.

Lower Power Alternative: SMCJ16A-TP (Micro Commercial Co)

The SMCJ16A-TP maintains identical voltage parameters (16V standoff, 26V clamp) with reduced peak pulse current (57.7A) and intermediate power dissipation (1500W). This part is appropriate for applications with lower transient energy requirements. Packaged in DO-214AB SMC format with extended upper operating temperature to 175°C. Currently in active production with 4064 units available.

Not Recommended: TPSMC20A and TPSMC22A

The TPSMC20A and TPSMC22A deviate from the CD214L-T16ALF electrical specifications with higher standoff voltages (17.1V and 18.8V respectively) and higher clamping voltages (27.7V and 30.6V). These parts are automotive-grade with AEC-Q101 qualification but are not direct substitutes for general-purpose 16V applications.

Not Recommended: SMCJ16A (EVVO Semi, SMA Package)

While this part maintains identical voltage specifications, it is packaged in DO-214AC SMA format rather than DO-214AB SMC, creating a mechanical incompatibility with the original design footprint.

Frequently Asked Questions (FAQ)

Q: Can SMLJ16A directly replace CD214L-T16ALF without circuit modification?

A: Yes. The SMLJ16A is a direct electrical and mechanical equivalent. Both parts share identical voltage ratings (16V standoff, 26V clamp), peak pulse current (115.4A), power dissipation (3000W), and DO-214AB SMC packaging. No circuit changes are required.

Q: What is the difference between the 3000W CD214L-T16ALF and the 5000W 5.0SMDJ16A?

A: Both maintain identical voltage specifications (16V standoff, 26V clamp). The 5.0SMDJ16A handles higher transient current (193A versus 115.4A) and dissipates more energy (5000W versus 3000W). Selection depends on the actual transient energy present in the application. If the original 3000W specification was adequate, the 5.0SMDJ16A provides additional margin without changing circuit behavior.

Q: Why is the SMCJ16A (EVVO Semi) listed as a substitute if it has a different package?

A: The SMCJ16A from EVVO Semi is electrically equivalent but packaged in DO-214AC SMA format instead of DO-214AB SMC. This creates a mechanical incompatibility with the original PCB footprint. It is not recommended for direct replacement without PCB redesign.

Q: Are TPSMC20A and TPSMC22A suitable alternatives?

A: No. These automotive-grade parts have different voltage specifications (17.1V and 18.8V standoff respectively) and higher clamping voltages (27.7V and 30.6V). They are not compatible with circuits designed for 16V standoff protection.

Q: What is the significance of the operating temperature range difference between SMLJ16A (-55°C to 150°C) and 5.0SMDJ16A-T7 (-65°C to 150°C)?

A: The 5.0SMDJ16A-T7 extends the lower operating temperature limit by 10°C. For applications operating at temperatures below -55°C, the Littelfuse part provides additional margin. For standard industrial applications within -55°C to 150°C, both parts are equivalent.

Q: Is RoHS3 compliance maintained across all recommended substitutes?

A: Yes. SMLJ16A, SMDJ16A, 5.0SMDJ16A, 5.0SMDJ16A-T7, and SMCJ16A-TP are all RoHS3 compliant, matching the original CD214L-T16ALF specification.

Q: Can I use SMCJ16A-TP (1500W) instead of the original 3000W part?

A: Only if the application's actual transient energy requirement does not exceed 1500W. The SMCJ16A-TP maintains identical voltage protection (16V standoff, 26V clamp) but with reduced power handling. Circuit analysis is required to confirm adequacy for your specific transient profile.