CD214L-T48CALF Equivalent & Substitute Parts

Part Overview

The CD214L-T48CALF 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 48V reverse standoff voltage with a 77.4V maximum clamping voltage and 38.8A peak pulse current capability in a DO-214AB (SMC) package. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and production requirements.

Substiute Parts

CD214L-T48CALF

Bourns Inc.In Stock: 1075CD214L-T48CALF Datasheet

Current PartRFQ

SMLJ48CA

Bourns Inc.In Stock: 16037SMLJ48CA Datasheet

DirectRFQ

5.0SMDJ48CA

MDE Semiconductor IncIn Stock: 305215.0SMDJ48CA Datasheet

SimilarRFQ

5.0SMLJ48CA-TP

Micro Commercial CoIn Stock: 58995.0SMLJ48CA-TP Datasheet

SimilarRFQ

SMCJ48CA

Fairchild SemiconductorIn Stock: 25617SMCJ48CA Datasheet

SimilarRFQ

SMCJ48CA

Fairchild SemiconductorIn Stock: 25617SMCJ48CA Datasheet

SimilarRFQ

SMCJ48CA-TR

STMicroelectronicsIn Stock: 4420SMCJ48CA-TR Datasheet

SimilarRFQ

SMDJ48CA

Alpha & Omega Semiconductor Inc.In Stock: 6157SMDJ48CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD214L-T48CALF is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff: 48V (required match)
• Voltage - Clamping (Max) @ Ipp: 77.4V (required match)
• Package / Case: DO-214AB, SMC (required match)
• Bidirectional Channels: 1 (required match)
• Type: Zener (required match)

Secondary Considerations:

• Current - Peak Pulse (10/1000µs): 38.8A minimum
• Power - Peak Pulse: 3000W minimum
• Operating Temperature Range: -55°C to 150°C minimum
• RoHS3 Compliance and MSL rating

Substitute parts are grouped into two categories:

Direct Equivalents maintain identical electrical specifications (48V standoff, 77.4V clamp, 38.8A peak pulse, 3000W power rating) with active product status and improved availability.

Similar Substitutes maintain core voltage parameters (48V standoff, 77.4V clamp) but feature enhanced current handling (64.7A peak pulse, 5000W power rating) or alternative clamping characteristics, providing superior performance margins for the same protection voltage class.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent - Recommended Primary Substitutes:

SMLJ48CA (Bourns Inc.) and SMDJ48CA (Alpha & Omega Semiconductor Inc.) are direct functional equivalents maintaining identical electrical specifications: 48V reverse standoff, 77.4V clamping voltage, 38.8A peak pulse current, and 3000W power dissipation. Both parts are in active production status with ROHS3 compliance and MSL 1 rating. SMLJ48CA offers the advantage of being from the original manufacturer with higher inventory availability (15,952 pcs). SMDJ48CA provides an alternative from a qualified secondary source with 6,100 pcs in stock.

Enhanced Performance Substitutes:

5.0SMDJ48CA (MDE Semiconductor Inc.) and 5.0SMLJ48CA-TP (Micro Commercial Co) maintain the same voltage protection parameters (48V standoff, 77.4V clamp) while providing increased current handling capability (64.7A peak pulse) and power dissipation (5000W). These parts are suitable for applications requiring higher transient energy absorption. 5.0SMLJ48CA-TP additionally supports an extended operating temperature range to 175°C. Both parts are active and ROHS3 compliant.

Limited Substitutes:

SMCJ48CA (Fairchild Semiconductor) and SMCJ48CA-TR (STMicroelectronics) share the same voltage class but feature reduced current handling (19.4A peak pulse, 1500W power). SMCJ48CA-TR exhibits a higher clamping voltage (100V) and should be used only when the application circuit can tolerate this deviation. These parts are suitable only for lower-energy transient protection scenarios.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements. Parts from Bourns Inc., MDE Semiconductor Inc., and Micro Commercial Co provide explicit REACH compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can SMCJ48CA replace CD214L-T48CALF directly?

A: SMCJ48CA maintains the same voltage specifications (48V standoff, 77.4V clamp) and package (DO-214AB, SMC) but provides only 19.4A peak pulse current versus the original 38.8A. This part is suitable only for applications with lower transient energy requirements. For equivalent performance, use SMLJ48CA or SMDJ48CA.

Q: What is the difference between SMLJ48CA and 5.0SMLJ48CA-TP?

A: Both parts maintain identical voltage protection (48V standoff, 77.4V clamp) and package format. The primary differences are: 5.0SMLJ48CA-TP provides higher current handling (64.7A vs 38.8A), greater power dissipation (5000W vs 3000W), and extended operating temperature range (-55°C to 175°C vs -55°C to 150°C). Select 5.0SMLJ48CA-TP for applications requiring enhanced transient energy absorption or higher temperature operation.

Q: Why does SMCJ48CA-TR show 100V clamping voltage?

A: SMCJ48CA-TR from STMicroelectronics exhibits a 100V maximum clamping voltage at peak pulse current, which deviates from the 77.4V specification of the original part. This higher clamping voltage may result in increased voltage stress on protected circuits. This part should be used only when the application design accommodates this voltage deviation.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts use the DO-214AB (SMC) surface-mount package, ensuring mechanical and thermal compatibility. Packaging format (Tape & Reel, Cut Tape, or bulk) varies by supplier and should be confirmed based on procurement requirements.

Q: Which substitute offers the best availability?

A: 5.0SMDJ48CA (MDE Semiconductor Inc.) provides the highest inventory level at 30,420 pcs, followed by SMCJ48CA (Fairchild Semiconductor) at 25,600 pcs. For direct equivalents, SMLJ48CA (Bourns Inc.) offers 15,952 pcs in stock.

Q: Can I use a higher-rated part like 5.0SMDJ48CA in place of CD214L-T48CALF?

A: Yes. 5.0SMDJ48CA maintains the same voltage protection class (48V standoff, 77.4V clamp) while providing superior current and power handling. This represents a performance upgrade suitable for the same application without circuit modification, provided the higher specifications do not conflict with design constraints.