CD214B-T7.5ALF Equivalent & Substitute Parts

Part Overview

The CD214B-T7.5ALF is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 7.5V reverse standoff voltage with a 12.9V maximum clamping voltage and 46.5A peak pulse current capability in the DO-214AA (SMB) package format. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

CD214B-T7.5ALF

Bourns Inc.In Stock: 930CD214B-T7.5ALF Datasheet

Current PartRFQ

SMBJ7.5A

MDDIn Stock: 22756SMBJ7.5A Datasheet

DirectRFQ

SMBJ7.5A

MDDIn Stock: 22756SMBJ7.5A Datasheet

DirectRFQ

SMBJ7V5A

Taiwan Semiconductor CorporationIn Stock: 21444SMBJ7V5A Datasheet

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SMBSAC8.5-TP

Micro Commercial CoIn Stock: 835SMBSAC8.5-TP Datasheet

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TV06B7V5J-G

Comchip TechnologyIn Stock: 1176TV06B7V5J-G Datasheet

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TV06B7V5J-HF

Comchip TechnologyIn Stock: 1196TV06B7V5J-HF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD214B-T7.5ALF are classified based on strict electrical and mechanical parameter alignment:

Direct Substitutes (Electrical & Mechanical Equivalence): Parts meeting all critical parameters: 7.5V reverse standoff voltage, 12.9V maximum clamping voltage, 46.5A–46.6A peak pulse current, 600W peak pulse power, unidirectional configuration, and DO-214AA (SMB) package format. These parts are functionally interchangeable without circuit redesign.

Similar Substitutes (Minor Parameter Variance): Parts with equivalent standoff and clamping voltages but differing in peak pulse current, clamping voltage tolerance, or temperature range. These require engineering evaluation for specific application requirements.

Conditional Substitutes (Significant Parameter Differences): Parts with different voltage ratings or current capabilities that may be suitable only for applications with relaxed performance requirements or different circuit protection strategies.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Direct Replacement): SMBJ7.5A (MDD), SMBJ7V5A (Taiwan Semiconductor Corporation), TV06B7V5J-G (Comchip Technology), and TV06B7V5J-HF (Comchip Technology) are direct electrical and mechanical equivalents to the CD214B-T7.5ALF. All maintain identical 7.5V standoff voltage, 12.9V clamping voltage, and 46.5A–46.6A peak pulse current specifications. All substitute parts are active products with ROHS3 compliance and MSL 1 rating. These parts are suitable for direct PCB substitution without circuit modification.

Secondary Substitute (Conditional Use): SMBSAC8.5-TP (Micro Commercial Co) presents a higher voltage rating (8.5V standoff, 14V clamping) and reduced peak pulse current (34A versus 46.5A). This part is suitable only for applications where the higher voltage threshold and lower current capacity are acceptable. The extended operating temperature range (-55°C ~ 175°C) may provide advantage in extreme thermal environments.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification. The SMBJ7.5A (MDD), SMBJ7V5A (TSC), TV06B7V5J-G, and TV06B7V5J-HF are REACH Unaffected, whereas the original CD214B-T7.5ALF is REACH Affected. This distinction may influence supply chain and regulatory documentation requirements.

Temperature Range Consideration: The SMBJ7.5A (MDD) operates at -50°C minimum versus -55°C for the original part. Applications requiring full -55°C operation should specify SMBJ7V5A (TSC), TV06B7V5J-G, or TV06B7V5J-HF to maintain thermal specification equivalence.

Frequently Asked Questions (FAQ)

Q: Can SMBJ7.5A (MDD) be used as a direct replacement for CD214B-T7.5ALF? A: Yes. SMBJ7.5A matches all critical electrical parameters: 7.5V standoff voltage, 12.9V clamping voltage, 46.6A peak pulse current, and 600W peak power. The DO-214AA (SMB) package is identical. The only consideration is the minimum operating temperature of -50°C versus -55°C for the original part. For applications operating above -50°C, this part is fully equivalent.

Q: What is the difference between SMBJ7V5A and TV06B7V5J-G? A: Both parts are electrically identical with 7.5V standoff, 12.9V clamping, and 46.5A–46.51A peak pulse current. The primary differences are manufacturer (Taiwan Semiconductor Corporation versus Comchip Technology) and packaging designation. Both are active products with identical compliance ratings and are functionally interchangeable.

Q: Why is SMBSAC8.5-TP listed as a substitute if it has different voltage ratings? A: SMBSAC8.5-TP is included as a conditional substitute because it was referenced in the original CD214B-T7.5ALF substitute list. However, the 8.5V standoff and 14V clamping voltages represent a significant departure from the 7.5V/12.9V specification. This part is suitable only for applications where higher voltage thresholds are acceptable or where reduced current capacity (34A) meets circuit requirements.

Q: Are all substitute parts available in the same packaging? A: Yes. All listed substitute parts use the DO-214AA (SMB) surface-mount package, ensuring mechanical compatibility with existing PCB designs. Tape & Reel (TR) packaging is standard for all active products.

Q: What compliance certifications should I verify for production use? A: All substitute parts are ROHS3 compliant and carry EAR99 ECCN classification. Verify REACH status with your supplier: SMBJ7.5A (MDD), SMBJ7V5A (TSC), TV06B7V5J-G, and TV06B7V5J-HF are REACH Unaffected, while the original CD214B-T7.5ALF is REACH Affected. Moisture Sensitivity Level 1 (Unlimited) applies to all primary substitutes, indicating no special handling requirements.

Q: Can I mix different substitute part manufacturers in the same production batch? A: All listed substitute parts meet identical electrical specifications and package requirements. However, design documentation and supply chain procedures should specify a single approved part number to maintain consistency and traceability. Qualification testing may be required if switching between manufacturers.