CD214B-T160ALF Equivalent & Substitute Parts

Part Overview

The CD214B-T160ALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This unidirectional Zener diode operates with a 160V reverse standoff voltage and 259V maximum clamping voltage, delivering 2.3A peak pulse current in a compact DO-214AA (SMB) package. The part is classified as obsolete, making identification of active equivalent and substitute components essential for ongoing design support and procurement.

Substiute Parts

CD214B-T160ALF

Bourns Inc.In Stock: 856CD214B-T160ALF Datasheet

Current PartRFQ

SMBJ160A

MeritekIn Stock: 9072SMBJ160A Datasheet

DirectRFQ

SMBJ160A

MeritekIn Stock: 9072SMBJ160A Datasheet

DirectRFQ

SMBJ160A

MeritekIn Stock: 9072SMBJ160A Datasheet

DirectRFQ

P6SMB180A-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 995P6SMB180A-M3/5B Datasheet

SimilarRFQ

P6SMB200AHE3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 8193P6SMB200AHE3_A/H Datasheet

SimilarRFQ

TV06B161J-G

Comchip TechnologyIn Stock: 975TV06B161J-G Datasheet

SimilarRFQ

TV06B161J-HF

Comchip TechnologyIn Stock: 1088TV06B161J-HF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD214B-T160ALF is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 160V
• Voltage - Breakdown (Min): 178V
• Voltage - Clamping (Max) @ Ipp: 259V
• Current - Peak Pulse (10/1000µs): ≥ 2.3A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Type: Zener, Unidirectional (1 channel)

Direct Equivalents meet all critical parameters with identical electrical specifications and active product status.

Similar Substitutes meet the core voltage and current requirements but may vary in secondary parameters such as operating temperature range, clamping voltage tolerance, or product status. These are suitable where the application permits minor electrical variations within the specified tolerance bands.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SMBJ160A (Meritek)

The SMBJ160A provides direct electrical equivalence to the CD214B-T160ALF with identical voltage specifications (160V standoff, 178V breakdown, 259V clamping) and peak pulse current (2.32A). The part maintains active product status and ROHS3 compliance. Operating temperature range matches the original specification (-55°C ~ 150°C). This part is the preferred direct replacement for new designs and ongoing production support.

Secondary Recommendations: TV06B161J-G and TV06B161J-HF (Comchip Technology)

Both Comchip variants (TV06B161J-G and TV06B161J-HF) deliver identical electrical performance to the SMBJ160A with matching voltage and current ratings. Both parts are active and ROHS3 compliant. Operating temperature specifications are not provided in the data; verification with the manufacturer is required if temperature range is a critical design parameter. These parts are suitable alternatives where Comchip supply chain availability is preferred.

Tertiary Alternatives: P6SMB180A-M3/5B and P6SMB200AHE3_A/H (Vishay)

The Vishay P6SMB series parts represent similar substitutes with acceptable but non-identical electrical parameters. The P6SMB180A-M3/5B operates at 154V standoff (6V lower) with 246V clamping (13V lower) and 2.4A peak pulse current. The P6SMB200AHE3_A/H operates at 171V standoff (11V higher) with 274V clamping (15V higher) and 2.2A peak pulse current. Both are ROHS3 compliant and feature extended operating temperature ranges (-65°C ~ 150°C). These parts are suitable only where the application circuit tolerates the specified voltage deviations and the lower peak pulse current of the P6SMB200 variant.

Frequently Asked Questions (FAQ)

Q: Can SMBJ160A directly replace CD214B-T160ALF without circuit modification?

A: Yes. The SMBJ160A matches all critical electrical parameters: 160V reverse standoff, 178V breakdown voltage, 259V clamping voltage, and 2.32A peak pulse current. Both use the DO-214AA (SMB) package. No circuit redesign is required.

Q: What is the difference between direct equivalents and similar substitutes?

A: Direct equivalents (SMBJ160A, TV06B161J-G, TV06B161J-HF) maintain identical voltage and current specifications to the original part. Similar substitutes (P6SMB180A-M3/5B, P6SMB200AHE3_A/H) operate within acceptable ranges but with measurable deviations in standoff voltage, clamping voltage, or peak pulse current. Similar substitutes require circuit analysis to confirm compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the original CD214B-T160ALF specification.

Q: What is the significance of product status (Active vs. Obsolete)?

A: Active parts are in current production with assured long-term availability. Obsolete parts (CD214B-T160ALF, P6SMB200AHE3_A/H) are no longer manufactured and subject to supply discontinuation. For new designs and production continuity, active parts are strongly preferred.

Q: Do all substitutes have the same operating temperature range?

A: No. The CD214B-T160ALF, SMBJ160A, and Comchip variants operate from -55°C to 150°C. Vishay P6SMB parts extend to -65°C minimum. Comchip operating temperature specifications are not provided; contact the manufacturer for confirmation if temperature range is critical.

Q: Can P6SMB180A-M3/5B be used in place of CD214B-T160ALF?

A: Only with circuit verification. The P6SMB180A operates at 154V standoff (6V lower) and 246V clamping (13V lower). Applications requiring precise voltage clamping at 259V may not tolerate this deviation. Peak pulse current (2.4A) exceeds the original specification, providing margin in current handling.

Q: Is the DO-214AA (SMB) package identical across all substitutes?

A: Yes. All listed parts use the DO-214AA surface-mount package, commonly designated SMB. Footprint and soldering requirements are identical, permitting direct PCB substitution without layout modification.