CD214B-T120CALF Equivalent & Substitute Parts

Part Overview

The CD214B-T120CALF 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 120V reverse standoff voltage with 193V maximum clamping voltage and 3.1A peak pulse current capability in a DO-214AA (SMB) package. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

CD214B-T120CALF

Bourns Inc.In Stock: 1084CD214B-T120CALF Datasheet

Current PartRFQ

SMBJ120CA

MeritekIn Stock: 34486SMBJ120CA Datasheet

DirectRFQ

SMBJ120CA

MeritekIn Stock: 34486SMBJ120CA Datasheet

DirectRFQ

SMBJ120CA

MeritekIn Stock: 34486SMBJ120CA Datasheet

DirectRFQ

SMBJ100CA

Good-Ark SemiconductorIn Stock: 20340SMBJ100CA Datasheet

SimilarRFQ

SMBJ120CA-TP

Micro Commercial CoIn Stock: 2383SMBJ120CA-TP Datasheet

SimilarRFQ

SMBJP6KE120CA-TP

Micro Commercial CoIn Stock: 4786SMBJP6KE120CA-TP Datasheet

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TV06B121JB-HF

Comchip TechnologyIn Stock: 833TV06B121JB-HF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD214B-T120CALF is determined by the following critical electrical and mechanical parameters:

Primary Matching Criteria:

• Voltage - Reverse Standoff (Typ): 120V
• Voltage - Clamping (Max) @ Ipp: 193V
• Current - Peak Pulse (10/1000µs): 3.1A minimum
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Mounting Type: Surface Mount
• Type: Zener, Bidirectional (1 channel)

Substitute Categories:

Direct Equivalents match all primary electrical parameters (120V standoff, 193V clamp, 3.1A peak pulse) and package specifications. These parts provide identical functional performance.

Similar Alternatives maintain the same package and power rating but vary in voltage ratings or peak pulse current. These parts are suitable only when the application circuit can tolerate the specified voltage and current variations.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Recommended for Pin-Compatible Replacement):

SMBJ120CA (Meritek), SMBJ120CA-TP (Micro Commercial Co), and TV06B121JB-HF (Comchip) are direct functional equivalents with matching 120V standoff, 193V clamping voltage, and 3.1A peak pulse current specifications. All three maintain DO-214AA (SMB) package compatibility and ROHS3 compliance. SMBJ120CA-TP and SMBJP6KE120CA-TP offer extended operating temperature ranges to -55°C ~ 175°C, providing additional thermal margin for applications with elevated ambient conditions.

Similar Alternatives (Application-Dependent Selection):

SMBJ100CA (Good-Ark Semiconductor) and SMBJP6KE120CA-TP (Micro Commercial Co) feature lower voltage ratings (100V and 102V standoff respectively) with correspondingly lower clamping voltages (162V and 165V). These parts are suitable only when circuit design tolerates reduced voltage protection thresholds. Both maintain 600W peak pulse power and DO-214AA package compatibility.

Compliance and Availability:

All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the original part's environmental specifications. Active product status ensures ongoing availability and supply chain continuity compared to the obsolete CD214B-T120CALF.

Frequently Asked Questions (FAQ)

Q: Can SMBJ100CA replace CD214B-T120CALF in my circuit?

A: SMBJ100CA is a similar alternative with lower voltage ratings (100V standoff vs. 120V, 162V clamp vs. 193V). Substitution is only valid if your circuit design can tolerate these reduced protection thresholds. Direct equivalents (SMBJ120CA, SMBJ120CA-TP, TV06B121JB-HF) maintain identical voltage specifications.

Q: What is the difference between SMBJ120CA and SMBJ120CA-TP?

A: Both parts are direct electrical equivalents with 120V standoff and 193V clamping voltage. The primary difference is packaging: SMBJ120CA-TP is supplied in Tape & Reel (TR) format with extended operating temperature range (-55°C ~ 175°C) compared to standard packaging. Select based on your procurement and thermal requirements.

Q: Are all substitute parts in the same DO-214AA package?

A: Yes, all listed substitute parts use the DO-214AA (SMB) surface-mount package, ensuring mechanical and electrical compatibility with the original CD214B-T120CALF footprint.

Q: Which substitute offers the best thermal performance?

A: SMBJ120CA-TP and SMBJP6KE120CA-TP both specify extended operating temperature ranges to -55°C ~ 175°C, compared to -55°C ~ 150°C for the original part and most alternatives. Select these variants for applications requiring higher thermal margin.

Q: Are all substitutes ROHS3 compliant?

A: Yes, all listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings, matching the environmental compliance of the original CD214B-T120CALF.