SMBJ64CA Equivalent & Substitute Parts

Part Overview

The SMBJ64CA is an active-status Transient Voltage Suppressor (TVS) diode designed for general-purpose overvoltage protection applications. This bidirectional zener diode operates in the DO-214AA (SMB) surface-mount package and provides 64V reverse standoff voltage with 103V maximum clamping voltage at peak pulse current. The component is RoHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and manufacturing options across multiple qualified manufacturers while maintaining identical or compatible electrical and mechanical specifications.

Substiute Parts

SMBJ64CA

Taiwan Semiconductor CorporationIn Stock: 35467SMBJ64CA Datasheet

Current PartRFQ

SMBJ64CA-13-F

Diodes IncorporatedIn Stock: 1372SMBJ64CA-13-F Datasheet

DirectRFQ

SMBJ64CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 45314SMBJ64CA-E3/52 Datasheet

DirectRFQ

SMBJ64CA-TP

Micro Commercial CoIn Stock: 3926SMBJ64CA-TP Datasheet

DirectRFQ

SMBJ64CA

MeritekIn Stock: 35457SMBJ64CA Datasheet

UpgradeRFQ

SMBJ64CA

MeritekIn Stock: 35457SMBJ64CA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ64CA are qualified based on the following critical parameters that determine functional equivalence:

Electrical Parameters (Must Match):

• Voltage - Reverse Standoff (Typ): 64V
• Voltage - Breakdown (Min): 71.1V
• Voltage - Clamping (Max) @ Ipp: 103V
• Current - Peak Pulse (10/1000µs): 5.8A (or higher)
• Power - Peak Pulse: 600W
• Type: Zener, Bidirectional

Mechanical Parameters (Must Match):

• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Operating Temperature Consideration:

• Primary specification: -55°C to 150°C (TJ)
• Extended range variants acceptable: -55°C to 175°C (TJ)

All substitute parts listed maintain identical electrical protection characteristics and mechanical compatibility, differing only in manufacturer, packaging format (tape & reel versus cut tape), and minor variations in peak pulse current specification within acceptable tolerance.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and full RoHS3 compliance with identical electrical and mechanical specifications. Selection among equivalent options is determined by:

Packaging Format Availability:

• SMBJ64CA-13-F (Diodes Incorporated): Cut Tape (CT) & Digi-Reel® packaging
• SMBJ64CA-E3/52 (Vishay General Semiconductor): Tape & Reel (TR) packaging
• SMBJ64CA-TP (Micro Commercial Co): Tape & Reel (TR) packaging
• SMBJ64CA (Taiwan Semiconductor Corporation): Standard packaging
• SMBJ64CA (Meritek): Standard packaging

Operating Temperature Range:

• SMBJ64CA-TP (Micro Commercial Co) supports extended temperature range to 175°C, suitable for applications requiring higher thermal margin
• All other variants operate within -55°C to 150°C range

Peak Pulse Current Specification:

• SMBJ64CA (Meritek) specifies 5.83A peak pulse current, providing marginal improvement over 5.8A baseline
• All variants meet or exceed 5.8A minimum requirement

Inventory Availability:

• SMBJ64CA-E3/52 (Vishay): 45,300 pcs
• SMBJ64CA (Taiwan Semiconductor): 35,400 pcs
• SMBJ64CA (Meritek): 35,400 pcs
• SMBJ64CA-TP (Micro Commercial): 3,900 pcs
• SMBJ64CA-13-F (Diodes Incorporated): 1,337 pcs

Component selection should prioritize application requirements for packaging format and operating temperature, with inventory availability as secondary consideration.

Frequently Asked Questions (FAQ)

Q: Are all listed parts direct pin-for-pin replacements?

A: Yes. All substitute parts share identical DO-214AA (SMB) package geometry and surface-mount footprint. No PCB layout modifications are required for substitution.

Q: What is the difference between the various SMBJ64CA part numbers?

A: Differences exist only in manufacturer identity and packaging format. Electrical specifications remain constant across all variants. Packaging format refers to supply method: tape & reel (TR), cut tape (CT), or standard format. These distinctions do not affect component performance or compatibility.

Q: Can SMBJ64CA-TP be used in applications requiring operation above 150°C?

A: SMBJ64CA-TP supports operating temperature to 175°C (TJ), extending the thermal operating window by 25°C compared to other variants. This specification applies only to this Micro Commercial Co variant.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What determines whether a part qualifies as a substitute?

A: Substitution qualification requires matching specifications across three categories: (1) Electrical parameters including reverse standoff voltage, breakdown voltage, clamping voltage, and peak pulse current; (2) Mechanical parameters including package type and mounting method; (3) Compliance certifications including RoHS status and moisture sensitivity level. All listed parts meet these criteria.

Q: Can I substitute based on manufacturer preference alone?

A: No. Substitution must be based on electrical and mechanical parameter equivalence. Manufacturer selection is a secondary consideration after confirming specification compatibility and compliance requirements.

Q: What is the significance of the peak pulse current specification of 5.83A versus 5.8A?

A: The 5.83A specification (Meritek variant) represents a marginal increase within normal manufacturing tolerance. Both values satisfy the 5.8A minimum requirement. This difference does not affect circuit protection performance or component selection criteria.

Q: Are there any thermal performance differences between manufacturers?

A: Thermal performance is determined by the electrical specifications provided (600W peak pulse power, 103V clamping voltage, 5.8A peak pulse current). All variants share identical thermal characteristics within these parameters. Operating temperature range differs only for the Micro Commercial Co variant (175°C maximum versus 150°C for others).