CD214B-T90ALF Equivalent & Substitute Parts

Part Overview

The CD214B-T90ALF 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 90V reverse standoff voltage with 146V maximum clamping voltage and 4.1A peak pulse current capability in a DO-214AA (SMB) package. The part is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement.

Substiute Parts

CD214B-T90ALF

Bourns Inc.In Stock: 1051CD214B-T90ALF Datasheet

Current PartRFQ

SMBJ90A

MDDIn Stock: 300263SMBJ90A Datasheet

DirectRFQ

SMBJ90A

MDDIn Stock: 300263SMBJ90A Datasheet

DirectRFQ

SMBJ90A

MDDIn Stock: 300263SMBJ90A Datasheet

DirectRFQ

SMBJ90A

MDDIn Stock: 300263SMBJ90A Datasheet

DirectRFQ

SMBJ85A-HRA

Littelfuse Inc.In Stock: 750SMBJ85A-HRA Datasheet

SimilarRFQ

TV06B900J-G

Comchip TechnologyIn Stock: 1013TV06B900J-G Datasheet

SimilarRFQ

TV06B900J-HF

Comchip TechnologyIn Stock: 779TV06B900J-HF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD214B-T90ALF is determined by strict equivalence of the following electrical and mechanical parameters:

Critical Parameters for Direct Substitution:

• Voltage - Reverse Standoff (Typ): 90V
• Voltage - Clamping (Max) @ Ipp: 146V
• Current - Peak Pulse (10/1000µs): 4.1A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount

Substitute Categories:

Direct Equivalents meet all critical parameters with identical electrical specifications and active product status. These parts are fully interchangeable without circuit modification.

Similar Substitutes maintain the same package and mounting type with minor variations in electrical parameters (voltage standoff ±5V, clamping voltage ±9V, peak pulse current ±0.4A). These parts are suitable for applications with design margin tolerance.

Parameter Comparison

Engineering Selection Recommendations

SMBJ90A (MDD) is the primary direct equivalent. This part maintains identical electrical specifications (90V standoff, 146V clamping, 4.1A peak pulse) and is currently in active production status with ROHS3 compliance. The operating temperature range (-50°C ~ 150°C) is slightly narrower than the original part but covers standard industrial applications. Inventory availability is substantial (300,200 pcs).

TV06B900J-HF and TV06B900J-G (Comchip Technology) are direct electrical equivalents with identical voltage and power ratings. Both parts are manufactured by Comchip Technology and maintain the same DO-214AA package. These parts are active and ROHS3 compliant. Operating temperature specifications are not provided in the data; verification with the manufacturer datasheet is necessary for temperature-critical applications.

SMBJ85A-HRA (Littelfuse Inc.) is classified as a similar substitute due to lower voltage standoff (85V vs. 90V) and clamping voltage (137V vs. 146V). This part is suitable only for applications where the lower voltage threshold is acceptable. The part offers an extended lower operating temperature limit (-65°C vs. -55°C) and higher peak pulse current (4.4A vs. 4.1A). ROHS3 compliance and active status are confirmed.

All substitute parts are surface mount compatible with identical DO-214AA (SMB) package geometry, ensuring PCB footprint compatibility without layout modification.

Frequently Asked Questions (FAQ)

Q: Can SMBJ90A be used as a direct replacement for CD214B-T90ALF?

A: Yes. SMBJ90A meets all critical electrical parameters: 90V reverse standoff voltage, 146V clamping voltage, 4.1A peak pulse current, and 600W peak pulse power. Both parts use the DO-214AA (SMB) package. The primary difference is product status (SMBJ90A is active; CD214B-T90ALF is obsolete) and a slightly narrower operating temperature range (-50°C to 150°C vs. -55°C to 150°C).

Q: What is the difference between direct equivalents and similar substitutes?

A: Direct equivalents (SMBJ90A, TV06B900J-HF, TV06B900J-G) maintain identical electrical specifications across all critical parameters. Similar substitutes (SMBJ85A-HRA) have variations in voltage standoff and clamping voltage but remain functionally compatible for applications with design margin tolerance.

Q: Is SMBJ85A-HRA suitable for my application?

A: SMBJ85A-HRA is suitable only if your circuit design can tolerate a 5V lower reverse standoff voltage (85V vs. 90V) and 9V lower clamping voltage (137V vs. 146V). This part is recommended only when the lower voltage threshold provides adequate protection margin for your specific overvoltage transient profile.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (SMBJ90A, TV06B900J-HF, TV06B900J-G, and SMBJ85A-HRA) are ROHS3 compliant and suitable for applications requiring environmental compliance certification.

Q: Do all substitute parts use the same package?

A: Yes. All substitute parts use the DO-214AA (SMB) surface mount package, ensuring identical PCB footprint compatibility without layout modification or rework.

Q: What is the inventory status of substitute parts?

A: SMBJ90A has the highest inventory availability (300,200 pcs). TV06B900J-HF and TV06B900J-G have moderate availability (752 pcs and 992 pcs respectively). SMBJ85A-HRA has limited availability (658 pcs). Inventory levels should be confirmed with suppliers for procurement planning.