CD214L-T9.0ALF Equivalent & Substitute Parts

Part Overview

The CD214L-T9.0ALF is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface mount applications. This component features a 9V reverse standoff voltage with a 15.4V maximum clamping voltage and 194.8A peak pulse current capability in a DO-214AB (SMC) package. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and component procurement.

Substiute Parts

CD214L-T9.0ALF

Bourns Inc.In Stock: 1259CD214L-T9.0ALF Datasheet

Current PartRFQ

SMLJ9.0A

Bourns Inc.In Stock: 13110SMLJ9.0A Datasheet

DirectRFQ

SMDJ9.0A-HR

Littelfuse Inc.In Stock: 1145SMDJ9.0A-HR Datasheet

DirectRFQ

SMDJ9.0A-HRA

LittelfuseIn Stock: 895SMDJ9.0A-HRA Datasheet

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SMDJ9.0A-HRAT7

Littelfuse Inc.In Stock: 1094SMDJ9.0A-HRAT7 Datasheet

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SMCJ8.5A-13-F

Diodes IncorporatedIn Stock: 1063SMCJ8.5A-13-F Datasheet

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SMCJ9.0A

Taiwan Semiconductor CorporationIn Stock: 30127SMCJ9.0A Datasheet

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SMCJ9V0A

Fairchild SemiconductorIn Stock: 6249SMCJ9V0A Datasheet

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SMDJ9.0A

Alpha & Omega Semiconductor Inc.In Stock: 12202SMDJ9.0A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD214L-T9.0ALF is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 9V
• Voltage - Clamping (Max) @ Ipp: 15.4V
• Current - Peak Pulse (10/1000µs): 194.8A
• Power - Peak Pulse: 3000W (3kW)
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional (1 channel)

Direct substitutes maintain all critical electrical parameters and package specifications. Similar parts may have variations in peak pulse current or power dissipation but retain the same voltage ratings and package form factor.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Full Parameter Match):

The SMLJ9.0A (Bourns Inc.), SMDJ9.0A-HR, SMDJ9.0A-HRA, and SMDJ9.0A-HRAT7 (Littelfuse Inc.), and SMDJ9.0A (Alpha & Omega Semiconductor Inc.) are direct functional equivalents. All maintain the 9V reverse standoff voltage, 15.4V clamping voltage, 194.8A peak pulse current, and 3000W power dissipation. These parts are in active production status and ROHS3 compliant. The Littelfuse variants offer extended operating temperature range (-65°C to 150°C) compared to the original specification (-55°C to 150°C).

Similar Parts (Reduced Performance):

The SMCJ9.0A (Taiwan Semiconductor Corporation) and SMCJ9V0A (Fairchild Semiconductor) maintain voltage specifications but feature reduced peak pulse current (102A and 97.4A respectively) and lower power dissipation (1500W). These are suitable only for applications with lower transient current requirements.

The SMCJ8.5A-13-F (Diodes Incorporated) has a lower reverse standoff voltage (8.5V) and reduced electrical performance across all parameters. This part is not recommended as a substitute for the CD214L-T9.0ALF.

Frequently Asked Questions (FAQ)

Q: Can SMLJ9.0A directly replace CD214L-T9.0ALF?

A: Yes. The SMLJ9.0A maintains identical electrical specifications (9V standoff, 15.4V clamping, 194.8A peak pulse, 3000W power) and package form factor (DO-214AB, SMC). Both are Bourns Inc. products with ROHS3 compliance.

Q: What is the difference between SMDJ9.0A-HR and SMDJ9.0A-HRA?

A: Both are Littelfuse products with identical electrical parameters. The suffix designations indicate different product series within Littelfuse's TVS diode lineup. Both are functionally equivalent to the CD214L-T9.0ALF.

Q: Why do some substitutes have lower peak pulse current ratings?

A: Parts such as SMCJ9.0A (102A) and SMCJ9V0A (97.4A) are designed for lower transient energy applications. Selection depends on the actual peak pulse current requirement in your circuit. If your design requires 194.8A capability, these lower-rated parts are not suitable.

Q: Are all substitutes available in the same packaging?

A: All listed substitutes use the DO-214AB (SMC) surface mount package. Packaging format (Tape & Reel, Bulk, or unspecified) may vary by supplier and availability, but the physical component package remains consistent.

Q: Does operating temperature range affect substitution?

A: The Littelfuse variants (SMDJ9.0A-HR, SMDJ9.0A-HRA, SMDJ9.0A-HRAT7) offer -65°C to 150°C operation versus the original -55°C to 150°C. This extended lower temperature range is a performance advantage with no compatibility concerns for standard applications.

Q: Is SMCJ8.5A-13-F a valid substitute?

A: No. This part has a lower reverse standoff voltage (8.5V vs. 9V) and significantly reduced peak pulse current (104.2A vs. 194.8A) and power dissipation (1500W vs. 3000W). It is not electrically equivalent to the CD214L-T9.0ALF.