CD214A-T120CALF Equivalent & Substitute Parts

Part Overview

The CD214A-T120CALF is a bidirectional 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 a 193V maximum clamping voltage and 2A peak pulse current capability in a DO-214AC (SMA) package. The part is currently classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

CD214A-T120CALF

Bourns Inc.In Stock: 911CD214A-T120CALF Datasheet

Current PartRFQ

SMAJ120CA

EIC SEMICONDUCTOR INC.In Stock: 5429SMAJ120CA Datasheet

DirectRFQ

SMAJ120CA

EIC SEMICONDUCTOR INC.In Stock: 5429SMAJ120CA Datasheet

DirectRFQ

SMAJ100CA-M3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 963SMAJ100CA-M3/5A Datasheet

SimilarRFQ

SMAJ100CA-M3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 1029SMAJ100CA-M3/61 Datasheet

SimilarRFQ

SMAJ120CA-TP

Micro Commercial CoIn Stock: 5311SMAJ120CA-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD214A-T120CALF is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 120V
• Voltage - Clamping (Max) @ Ipp: 193V
• Voltage - Breakdown (Min): 133V
• Current - Peak Pulse (10/1000µs): ≥ 2A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• Operating Temperature Range: Compatible with -55°C ~ 150°C minimum

Substitute parts are categorized as follows:

Direct Equivalents: Parts meeting all critical electrical parameters and voltage specifications with identical or superior current ratings.

Similar Alternatives: Parts with different voltage ratings (100V standoff) that provide lower clamping voltages and reduced peak pulse current, suitable only for applications with lower voltage protection requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - SMAJ120CA (EIC SEMICONDUCTOR INC.): This part maintains identical voltage specifications (120V standoff, 193V clamping) and equivalent power dissipation (400W). Product status is active with full availability. RoHS3 compliance and MSL 1 rating match the original specification. Current rating of 1.6A is slightly lower than the original 2A specification but remains within the same protection class for 120V applications.

Alternative Substitute - SMAJ120CA-TP (Micro Commercial Co): This part provides identical voltage parameters and superior current handling (2.1A peak pulse), matching the original 2A specification more closely. Extended operating temperature range (-55°C ~ 175°C) provides additional thermal margin. Product status is active with high inventory availability. RoHS3 compliance and MSL 1 rating are maintained.

Lower Voltage Alternatives - SMAJ100CA-M3/5A and SMAJ100CA-M3/61 (Vishay General Semiconductor): These parts feature reduced voltage ratings (100V standoff, 162V clamping) and lower power dissipation (300W). Selection of these alternatives is appropriate only for applications where the protected circuit operates at lower voltage levels and does not require 120V protection. Both variants are active products with equivalent compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can SMAJ120CA be used as a direct replacement for CD214A-T120CALF? A: Yes. SMAJ120CA maintains identical reverse standoff voltage (120V), breakdown voltage (133V), and clamping voltage (193V) specifications. Both are rated for 400W peak pulse power and operate across the same temperature range. The 1.6A current rating is slightly lower than the original 2A but provides equivalent protection for 120V transient suppression applications.

Q: What is the difference between SMAJ120CA-TP and SMAJ120CA? A: Both parts share identical electrical specifications for voltage protection (120V standoff, 193V clamping). SMAJ120CA-TP offers superior peak pulse current (2.1A versus 1.6A) and an extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 150°C). Selection depends on whether the application requires higher current handling or extended thermal performance.

Q: Why are SMAJ100CA variants listed as similar rather than direct substitutes? A: SMAJ100CA variants operate at a lower voltage rating (100V standoff, 162V clamping) compared to the original specification (120V standoff, 193V clamping). These parts are suitable only for circuits requiring lower voltage protection and cannot be used in applications designed for 120V transient suppression without circuit redesign.

Q: Are all substitute parts available in the same package? A: Yes. All listed substitute parts use the DO-214AC (SMA) surface-mount package, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Q: Do all substitute parts meet the same compliance requirements? A: Yes. All substitute parts are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level) ratings, matching the original part's environmental and regulatory compliance profile.

Q: What is the inventory status of substitute parts? A: SMAJ120CA (EIC) has 5400 units in stock. SMAJ120CA-TP (Micro Commercial Co) has 5261 units in stock. SMAJ100CA-M3/5A (Vishay) has 882 units in stock. SMAJ100CA-M3/61 (Vishay) has 934 units in stock. All substitutes are classified as active products with established supply chains.