CD214A-T45CALF Equivalent & Substitute Parts

Part Overview

The CD214A-T45CALF is a 45V Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 72.7V maximum clamping voltage, 5.5A peak pulse current capability, and 400W peak pulse power rating 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-T45CALF

Bourns Inc.In Stock: 816CD214A-T45CALF Datasheet

Current PartRFQ

SMAJ45CA

MDDIn Stock: 6423SMAJ45CA Datasheet

DirectRFQ

SMAJ45CA

MDDIn Stock: 6423SMAJ45CA Datasheet

DirectRFQ

SMAJ45CA-TP

Micro Commercial CoIn Stock: 5938SMAJ45CA-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD214A-T45CALF is determined by strict electrical and mechanical parameter matching across the following criteria:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 45V
• Voltage - Breakdown (Min): 50V
• Voltage - Clamping (Max) @ Ipp: 72.7V
• Current - Peak Pulse (10/1000µs): 5.5A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Type: Zener
• Bidirectional Channels: 1

Acceptable Variation Parameters:

• Operating Temperature range may extend beyond the original specification
• Packaging format (bulk vs. Tape & Reel) does not affect electrical compatibility
• Manufacturer differences are acceptable provided all electrical parameters match

The substitute parts identified below meet all critical electrical parameters and package requirements, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

SMAJ45CA (MDD) and SMAJ45CA-TP (Micro Commercial Co) are functionally equivalent substitutes for the CD214A-T45CALF. Both parts are classified as Active products, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

SMAJ45CA-TP offers an extended operating temperature range (-55°C ~ 175°C) compared to the original specification (-55°C ~ 150°C), providing additional thermal margin for demanding applications. This part is supplied in Tape & Reel packaging, suitable for automated assembly processes.

SMAJ45CA maintains the same operating temperature upper limit as the original part (150°C) and is available in standard packaging. Both substitute parts carry ROHS3 compliance and MSL 1 rating, matching the environmental and regulatory requirements of the original component.

Selection between the two substitutes should be based on packaging requirements (bulk vs. Tape & Reel) and thermal operating range needs for the specific application.

Frequently Asked Questions (FAQ)

Q: Can SMAJ45CA or SMAJ45CA-TP be used as direct replacements for CD214A-T45CALF?

A: Yes. Both parts match all critical electrical parameters: 45V reverse standoff voltage, 50V minimum breakdown voltage, 72.7V maximum clamping voltage, 5.5A peak pulse current, and 400W peak pulse power. Package and mounting specifications are identical (DO-214AC, SMA, surface mount). Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between SMAJ45CA and SMAJ45CA-TP?

A: The primary differences are packaging format and operating temperature range. SMAJ45CA-TP is supplied in Tape & Reel (TR) format with an extended operating temperature range of -55°C ~ 175°C, compared to SMAJ45CA at -50°C ~ 150°C. Electrical performance is identical.

Q: Why is the original CD214A-T45CALF classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured or supported by Bourns Inc. Active substitute parts from alternative manufacturers ensure continued availability for new designs and ongoing production support.

Q: Are there any compliance or certification differences between the original and substitute parts?

A: All three parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The original part carries REACH Affected status, while SMAJ45CA-TP is REACH Unaffected. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Q: Which substitute part should be selected for high-temperature applications?

A: SMAJ45CA-TP is recommended for applications requiring operation above 150°C, as it supports temperatures up to 175°C. For applications within the -55°C ~ 150°C range, either substitute part is suitable.

Q: Is inventory availability a factor in part selection?

A: SMAJ45CA and SMAJ45CA-TP both have significantly higher inventory levels (6400 Pcs and 5898 Pcs respectively) compared to the original part (744 Pcs), providing better supply chain security for production requirements.