CD214A-T20CALF Equivalent & Substitute Parts

Part Overview

The CD214A-T20CALF 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 20V reverse standoff voltage with a 32.4V maximum clamping voltage and 12.3A peak pulse current capability in a DO-214AC (SMA) package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

CD214A-T20CALF

Bourns Inc.In Stock: 943CD214A-T20CALF Datasheet

Current PartRFQ

SMAJ20CA

MDDIn Stock: 20330SMAJ20CA Datasheet

DirectRFQ

SMAJ20CA

MDDIn Stock: 20330SMAJ20CA Datasheet

DirectRFQ

SM4T23CAY

STMicroelectronicsIn Stock: 6155SM4T23CAY Datasheet

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SMA6J20CA-TR

STMicroelectronicsIn Stock: 5213SMA6J20CA-TR Datasheet

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SMAJ20CA-TP

Micro Commercial CoIn Stock: 3986SMAJ20CA-TP Datasheet

SimilarRFQ

TV04A200JB-G

Comchip TechnologyIn Stock: 1013TV04A200JB-G Datasheet

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TV04A200JB-HF

Comchip TechnologyIn Stock: 836TV04A200JB-HF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD214A-T20CALF is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff: 20V (nominal)
• Voltage - Breakdown (Min): 22.2V
• Voltage - Clamping (Max) @ Ipp: 32.4V
• Current - Peak Pulse (10/1000µs): 12.3A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• Bidirectional Channels: 1

Substitute parts are classified into two categories:

Direct Equivalents: Parts with identical electrical specifications (20V standoff, 32.4V clamping, 12.3A peak pulse) and active product status.

Similar Alternatives: Parts with the same 20V standoff voltage and DO-214AC package but with different clamping voltages or peak pulse currents. These require circuit-level evaluation to confirm suitability.

Parameter Comparison

Engineering Selection Recommendations

Preferred Direct Equivalents:

SMAJ20CA-TP (Micro Commercial Co) and TV04A200JB-G or TV04A200JB-HF (Comchip Technology) are the primary substitutes. These parts maintain identical electrical specifications to the CD214A-T20CALF with 20V standoff, 32.4V clamping, and 12.3A peak pulse current. All three are active products with ROHS3 compliance and RoHS certification. SMAJ20CA-TP offers an extended operating temperature range (-55°C ~ 175°C) compared to the original part, providing additional thermal margin. The Comchip parts (TV04A200JB-G and TV04A200JB-HF) maintain the original temperature range and are functionally identical.

SMAJ20CA (MDD) is also a direct electrical equivalent but has a reduced lower operating temperature limit (-50°C vs. -55°C), which may be acceptable depending on application requirements.

Alternative Substitutes with Higher Performance:

SM4T23CAY (STMicroelectronics) and SMA6J20CA-TR (STMicroelectronics) maintain the 20V standoff voltage but feature higher clamping voltages and peak pulse currents. SM4T23CAY provides 42.8V clamping with 54A peak pulse, while SMA6J20CA-TR offers 36.8V clamping with 93A peak pulse and 600W power dissipation. These parts are suitable only when the circuit design can accommodate higher clamping voltages. Both are active products with AEC-Q101 qualification (SM4T23CAY) and extended temperature ranges.

All substitute parts are ROHS3 compliant and maintain the DO-214AC (SMA) package footprint for direct PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can SMAJ20CA-TP be used as a direct replacement for CD214A-T20CALF?

A: Yes. SMAJ20CA-TP is electrically and mechanically equivalent with identical 20V standoff, 22.2V breakdown, 32.4V clamping, and 12.3A peak pulse specifications. The part is active, ROHS3 compliant, and uses the same DO-214AC (SMA) package. The extended operating temperature range (-55°C ~ 175°C) provides additional design margin.

Q: What is the difference between TV04A200JB-G and TV04A200JB-HF?

A: Both parts are functionally identical with the same electrical specifications (20V standoff, 32.4V clamping, 12.3A peak pulse) and operating temperature range (-55°C ~ 150°C). The difference lies in packaging or supplier designation; both are suitable direct replacements for the CD214A-T20CALF.

Q: Can SM4T23CAY or SMA6J20CA-TR be used instead of the original part?

A: These parts share the same 20V standoff voltage and DO-214AC package but have higher clamping voltages (42.8V and 36.8V respectively) and significantly higher peak pulse currents. Substitution is possible only if the circuit design can tolerate the higher clamping voltage without affecting downstream components or system performance. Circuit-level analysis is required.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, meeting environmental and regulatory requirements equivalent to the original CD214A-T20CALF.

Q: What is the inventory status of substitute parts?

A: SMAJ20CA (MDD) has the highest availability with 20,300 units in stock. SMAJ20CA-TP (Micro Commercial Co) has 3,900 units. TV04A200JB-G and TV04A200JB-HF (Comchip Technology) have 996 and 777 units respectively. SM4T23CAY and SMA6J20CA-TR (STMicroelectronics) have 6,093 and 5,180 units respectively.

Q: Does the package footprint differ between substitute parts?

A: No. All substitute parts use the DO-214AC (SMA) package, ensuring direct PCB footprint compatibility with the original CD214A-T20CALF design.