CD214B-T10ALF Equivalent & Substitute Parts

Part Overview

The CD214B-T10ALF is a 10V Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc., housed in a DO-214AA (SMB) surface mount package. This unidirectional zener diode provides 17V clamping voltage at peak pulse current with 600W peak pulse power rating, designed for general-purpose transient voltage suppression applications. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and component procurement.

Substiute Parts

CD214B-T10ALF

Bourns Inc.In Stock: 906CD214B-T10ALF Datasheet

Current PartRFQ

SMBJ10A

MDDIn Stock: 113201SMBJ10A Datasheet

DirectRFQ

SMBJ10A

MDDIn Stock: 113201SMBJ10A Datasheet

DirectRFQ

SMBJ10A

MDDIn Stock: 113201SMBJ10A Datasheet

DirectRFQ

SMBJ10A-HR

LittelfuseIn Stock: 702SMBJ10A-HR Datasheet

DirectRFQ

SMBJ10A-HRA

Littelfuse Inc.In Stock: 774SMBJ10A-HRA Datasheet

DirectRFQ

SACB10

Littelfuse Inc.In Stock: 8294SACB10 Datasheet

SimilarRFQ

SMBJ10A-TP

Micro Commercial CoIn Stock: 18353SMBJ10A-TP Datasheet

SimilarRFQ

SMBJ10A-TR

STMicroelectronicsIn Stock: 12660SMBJ10A-TR Datasheet

SimilarRFQ

SMBJ11A

MeritekIn Stock: 50169SMBJ11A Datasheet

SimilarRFQ

TV06B100J-G

Comchip TechnologyIn Stock: 1189TV06B100J-G Datasheet

SimilarRFQ

TV06B100J-HF

Comchip TechnologyIn Stock: 1068TV06B100J-HF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD214B-T10ALF is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

• Voltage - Reverse Standoff: 10V (±0V tolerance for direct substitution)
• Voltage - Clamping (Max) @ Ipp: 17V (exact match required)
• Current - Peak Pulse (10/1000µs): 35.3A minimum
• Power - Peak Pulse: 600W minimum
• Package / Case: DO-214AA, SMB (mechanical compatibility)
• Mounting Type: Surface Mount

Substitute Categories:

Direct Equivalents (all parameters match within specification):

• SMBJ10A-HRA (Littelfuse Inc.)
• SMBJ10A-TP (Micro Commercial Co)
• TV06B100J-G (Comchip Technology)

Functional Equivalents (meet all electrical requirements, active product status):

• SMBJ10A (MDD) - multiple inventory sources
• SMBJ10A-TR (STMicroelectronics)

Similar Performance (minor parameter variations, same application class):

• SACB10 (Littelfuse Inc.) - 16.3V clamping, 29A peak pulse
• SMBJ11A (Meritek) - 11V standoff, 18.2V clamping

Parameter Comparison

Engineering Selection Recommendations

Preferred Direct Substitutes (Highest Compatibility):

SMBJ10A-HRA and SMBJ10A-TP are the primary recommended substitutes. Both maintain identical electrical specifications (10V standoff, 17V clamping, 35.3A peak pulse, 600W power rating) and DO-214AA SMB packaging. SMBJ10A-HRA offers extended lower temperature operation (-65°C vs -55°C), while SMBJ10A-TP provides extended upper temperature operation (-55°C to 175°C). Both are ROHS3 compliant with MSL 1 rating. Active product status ensures long-term availability and supply chain stability.

Alternative Active Substitutes:

SMBJ10A (MDD) and SMBJ10A-TR (STMicroelectronics) meet all electrical requirements with active product status. SMBJ10A-TR from STMicroelectronics provides slightly higher peak pulse current (37A vs 35.3A), offering additional margin. All four options are ROHS3 compliant and suitable for direct PCB replacement.

Limited Compatibility Options:

SACB10 and SMBJ11A are functionally similar but exhibit parameter deviations. SACB10 reduces clamping voltage to 16.3V and peak pulse current to 29A with 500W power rating—acceptable only for applications with relaxed transient suppression requirements. SMBJ11A shifts the voltage window to 11V standoff and 18.2V clamping, suitable only for circuits designed for this higher voltage class.

Frequently Asked Questions (FAQ)

Q: Can SMBJ10A-HRA directly replace CD214B-T10ALF without circuit modification?

A: Yes. SMBJ10A-HRA maintains identical electrical specifications (10V standoff, 17V clamping, 35.3A peak pulse, 600W power) and DO-214AA SMB packaging. No circuit changes are required. The extended temperature range (-65°C to 150°C vs -55°C to 150°C) provides additional operational margin.

Q: What is the difference between SMBJ10A-TP and SMBJ10A-HRA?

A: Both provide identical electrical performance. The primary difference is operating temperature range: SMBJ10A-TP extends to 175°C maximum junction temperature, while SMBJ10A-HRA extends to -65°C minimum. Select based on your application's thermal requirements.

Q: Why is SACB10 listed as a substitute if it has different electrical parameters?

A: SACB10 is classified as a similar-performance alternative, not a direct equivalent. It reduces clamping voltage to 16.3V and peak pulse current to 29A. Use only if your circuit design accommodates these lower suppression levels. For standard 10V standoff applications requiring 17V clamping, use direct equivalents instead.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitutes (SMBJ10A-HRA, SMBJ10A-TP, TV06B100J-G, SMBJ10A, SMBJ10A-TR, SACB10, SMBJ11A) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original CD214B-T10ALF specification.

Q: Can I use SMBJ10A-TR from STMicroelectronics instead of the Littelfuse option?

A: Yes. SMBJ10A-TR meets all electrical requirements with 37A peak pulse current (exceeding the 35.3A specification), identical 17V clamping, and DO-214AA SMB packaging. The higher current rating provides additional transient suppression margin.

Q: What packaging format should I specify when ordering substitutes?

A: All direct equivalents use DO-214AA (SMB) surface mount packaging. Confirm tape & reel (TR) or cut tape (CT) packaging availability with your supplier based on your assembly process requirements. Standard SMB footprint compatibility is maintained across all substitutes.