CD214L-T70CALF Equivalent & Substitute Parts

Part Overview

The CD214L-T70CALF 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 70V reverse standoff voltage with a 113V maximum clamping voltage and 26.6A peak pulse current capability in a DO-214AB (SMC) package. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

CD214L-T70CALF

Bourns Inc.In Stock: 1061CD214L-T70CALF Datasheet

Current PartRFQ

SMLJ70CA

Bourns Inc.In Stock: 9581SMLJ70CA Datasheet

DirectRFQ

5.0SMDJ70CA

MDE Semiconductor IncIn Stock: 22725.0SMDJ70CA Datasheet

SimilarRFQ

SMCJ70CA

Fairchild SemiconductorIn Stock: 20241SMCJ70CA Datasheet

SimilarRFQ

SMCJ70CA

Fairchild SemiconductorIn Stock: 20241SMCJ70CA Datasheet

SimilarRFQ

SMCJ70CA-TP

Micro Commercial CoIn Stock: 75194SMCJ70CA-TP Datasheet

SimilarRFQ

SMDJ70CA

Alpha & Omega Semiconductor Inc.In Stock: 24162SMDJ70CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD214L-T70CALF is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage - Reverse Standoff (Typ): 70V
• Voltage - Breakdown (Min): 77.8V
• Voltage - Clamping (Max) @ Ipp: 113V
• Package / Case: DO-214AB, SMC
• Bidirectional Channels: 1
• Type: Zener
• Mounting Type: Surface Mount

Acceptable Variation Parameters:

• Current - Peak Pulse (10/1000µs): Equal to or greater than 26.6A
• Power - Peak Pulse: Equal to or greater than 3000W
• Operating Temperature: Equal to or exceeding -55°C ~ 150°C range
• Product Status: Active preferred (obsolete parts have limited availability)

Substitute parts are grouped into two categories: Direct Equivalents (matching all electrical and thermal specifications) and Similar Parts (matching voltage and package specifications with higher current/power ratings).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Preferred for 1:1 Replacement):

SMLJ70CA (Bourns Inc.) is the primary direct equivalent. It matches all electrical specifications (70V standoff, 77.8V breakdown, 113V clamping, 26.6A peak pulse, 3kW power) and thermal range (-55°C ~ 150°C). The part is active with substantial inventory (9500 pcs), ROHS3 compliant, and available in Tape & Reel packaging for production environments.

Full-Specification Equivalent:

SMDJ70CA (Alpha & Omega Semiconductor Inc.) provides identical electrical and thermal performance to the main part with 26.6A peak pulse current and 3kW power dissipation. This part is active with high inventory availability (24149 pcs), ROHS3 compliant, and suitable for direct substitution in existing designs.

Enhanced Performance Alternative:

5.0SMDJ70CA (MDE Semiconductor Inc) maintains voltage specifications but provides higher current handling (44.3A) and power dissipation (5kW). This part is suitable for applications requiring additional margin or higher transient energy absorption. It is active and ROHS3 compliant.

Lower Power Alternative (Not Recommended for Direct Replacement):

SMCJ70CA (Fairchild Semiconductor) and SMCJ70CA-TP (Micro Commercial Co) both feature reduced peak pulse current (13.3A) and power dissipation (1.5kW). These parts are suitable only for applications with lower transient energy requirements and should not be used as direct replacements for the CD214L-T70CALF without circuit analysis. SMCJ70CA-TP offers extended operating temperature range (-55°C ~ 175°C).

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance. The CD214L-T70CALF is classified as REACH Affected; verify REACH status requirements for your specific application region before final selection.

Frequently Asked Questions (FAQ)

Q: Can SMCJ70CA be used as a direct replacement for CD214L-T70CALF?

A: SMCJ70CA matches the voltage specifications (70V standoff, 113V clamping) and package (DO-214AB, SMC) but has reduced peak pulse current (13.3A vs. 26.6A) and power dissipation (1.5kW vs. 3kW). It is suitable only for applications with lower transient energy requirements. Circuit analysis is required to confirm compatibility.

Q: What is the difference between SMLJ70CA and SMDJ70CA?

A: Both parts are direct electrical equivalents with identical voltage ratings (70V standoff, 113V clamping), peak pulse current (26.6A), and power dissipation (3kW). SMLJ70CA is manufactured by Bourns Inc. (same as the original part), while SMDJ70CA is manufactured by Alpha & Omega Semiconductor Inc. Both are active, ROHS3 compliant, and suitable for direct substitution.

Q: Why would I choose 5.0SMDJ70CA over SMLJ70CA?

A: 5.0SMDJ70CA provides higher peak pulse current (44.3A) and power dissipation (5kW) while maintaining identical voltage specifications. This part is selected when circuit analysis indicates higher transient energy absorption is beneficial or when design margins require additional protection capability.

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

A: All substitute parts use the DO-214AB (SMC) surface mount package, matching the original CD214L-T70CALF. Packaging options vary by manufacturer: SMLJ70CA and SMCJ70CA-TP are available in Tape & Reel (TR); SMDJ70CA is available in Tape & Reel; SMCJ70CA packaging is not specified. Verify packaging availability with your supplier for production requirements.

Q: Is the CD214L-T70CALF still available for purchase?

A: The CD214L-T70CALF is classified as obsolete. While 1038 pcs are reported in stock, long-term availability is not guaranteed. Active substitutes (SMLJ70CA, SMDJ70CA, SMCJ70CA-TP, 5.0SMDJ70CA) are recommended for new designs and ongoing production to ensure supply chain continuity.

Q: Do all substitute parts meet the same compliance standards?

A: All recommended substitutes are ROHS3 compliant. REACH status varies: SMLJ70CA and SMDJ70CA are REACH Affected; 5.0SMDJ70CA is REACH Unaffected; SMCJ70CA and SMCJ70CA-TP are REACH Unaffected. Verify REACH compliance requirements for your target market before final selection.

Q: What is the operating temperature range difference between SMCJ70CA-TP and other substitutes?

A: SMCJ70CA-TP operates from -55°C to 175°C (TJ), providing 25°C additional high-temperature margin compared to most other substitutes which operate to 150°C. This extended range is beneficial for high-temperature applications but does not affect electrical performance at standard operating conditions.