SMAJ6.5CA-Q Equivalent & Substitute Parts

Part Overview

The SMAJ6.5CA-Q is an active Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc., designed for telecom applications requiring transient voltage protection. This surface-mount component operates as a bidirectional Zener diode in the DO-214AC (SMA) package format. The part is actively produced and maintains automotive-grade qualification under AEC-Q101 standards. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

SMAJ6.5CA-Q

Bourns Inc.In Stock: 773SMAJ6.5CA-Q Datasheet

Current PartRFQ

SMAJE6-5CAH

Eaton - Electronics DivisionIn Stock: 6053SMAJE6-5CAH Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMAJ6.5CA-Q are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

Electrical Parameters (Must Match):

• Voltage - Reverse Standoff (Typ): 6.5V
• Voltage - Breakdown (Min): 7.22V
• Voltage - Clamping (Max) @ Ipp: 11.2V
• Current - Peak Pulse (10/1000µs): 35.7A
• Power - Peak Pulse: 400W
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Parameters (Must Match):

• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener

Compliance Parameters (Must Match):

• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parts meeting all criteria above are classified as direct electrical and mechanical equivalents suitable for interchangeable use in the same circuit application.

Parameter Comparison

Engineering Selection Recommendations

The SMAJE6-5CAH manufactured by Eaton - Electronics Division is a direct electrical and mechanical equivalent to the SMAJ6.5CA-Q. Both components are active products with identical voltage ratings, current handling capabilities, thermal operating ranges, and package specifications. Both maintain automotive-grade qualification under AEC-Q101 and comply with ROHS3 standards.

Selection between these parts is based on:

Availability: The SMAJE6-5CAH maintains higher inventory levels (5960 Pcs) compared to the SMAJ6.5CA-Q (727 Pcs), supporting extended lead time mitigation and supply chain resilience.

Compliance Status: The SMAJ6.5CA-Q carries REACH Affected status, while the SMAJE6-5CAH is REACH Unaffected. Design and procurement decisions should account for regulatory requirements specific to the end application and geographic market.

Manufacturer Qualification: Both parts satisfy automotive-grade requirements and AEC-Q101 qualification, ensuring suitability for automotive and industrial telecom applications requiring transient voltage suppression.

Frequently Asked Questions (FAQ)

Q: Can the SMAJE6-5CAH replace the SMAJ6.5CA-Q in existing designs?

A: Yes. The SMAJE6-5CAH is electrically and mechanically equivalent across all specified parameters, including voltage ratings, current handling, temperature range, package format, and automotive qualification. Direct substitution is supported without circuit modification.

Q: Are there differences in performance between these two TVS diodes?

A: No. Both components share identical electrical specifications: 6.5V reverse standoff voltage, 11.2V maximum clamping voltage, 35.7A peak pulse current, and 400W peak pulse power rating. Performance in transient voltage suppression applications is equivalent.

Q: What is the significance of the DO-214AC (SMA) package format?

A: The DO-214AC, commonly designated SMA, is a surface-mount package standard for small-signal diodes and TVS devices. Both the SMAJ6.5CA-Q and SMAJE6-5CAH use this identical package, ensuring mechanical compatibility with existing PCB layouts, solder reflow processes, and automated assembly equipment.

Q: Does REACH compliance status affect component selection?

A: REACH compliance status reflects regulatory obligations in specific geographic markets. The SMAJ6.5CA-Q is REACH Affected, while the SMAJE6-5CAH is REACH Unaffected. Selection should align with end-product regulatory requirements and target market restrictions.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the SMAJ6.5CA-Q and SMAJE6-5CAH carry automotive-grade classification and AEC-Q101 qualification, meeting reliability and quality standards required for automotive and industrial telecom environments.

Q: What is the moisture sensitivity level (MSL) for these components?

A: Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts do not require special moisture control during storage, handling, or assembly processes.

Q: Can these TVS diodes be used interchangeably in tape and reel packaging?

A: Yes. Both components are supplied in Tape & Reel (TR) packaging format, supporting automated pick-and-place assembly processes. Reel specifications and component spacing are compatible with standard surface-mount assembly equipment.