SMDA03CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMDA03CE3/TR13 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, part of the TVSarray™ series. This surface-mount component is designed for general-purpose transient voltage protection applications. The device features a 3.3V reverse standoff voltage with a 9V maximum clamping voltage and handles peak pulse currents of 5A (8/20µs). The part is currently in active production status with 738 units available in stock. Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time requirements, or design flexibility needs while maintaining identical electrical and mechanical performance.

Substiute Parts

SMDA03CE3/TR13

Microchip TechnologyIn Stock: 805SMDA03CE3/TR13 Datasheet

Current PartRFQ

SMDB03CE3/TR7

Microchip TechnologyIn Stock: 1387SMDB03CE3/TR7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMDA03CE3/TR13 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for a part to serve as a direct substitute:

Electrical Parameters (Must Match):

• Voltage - Reverse Standoff (Typ): 3.3V
• Voltage - Breakdown (Min): 4V
• Voltage - Clamping (Max) @ Ipp: 9V
• Current - Peak Pulse (10/1000µs): 5A (8/20µs)
• Power - Peak Pulse: 300W
• Bidirectional Channels: 4
• Capacitance @ Frequency: 300pF @ 1MHz
• Operating Temperature Range: -55°C ~ 150°C (TJ)

Mechanical Parameters (Must Match):

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Supplier Device Package: 8-SO

Compliance Parameters (Must Match):

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

The SMDA03CE3/TR13 belongs to Microchip Technology's TVSarray™ series. Substitute parts must maintain identical specifications across all listed parameters to ensure functional and physical compatibility in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The SMDB03CE3/TR7 is a direct equivalent substitute for the SMDA03CE3/TR13. Both components are manufactured by Microchip Technology and share identical electrical specifications, mechanical packaging, and compliance certifications. The primary distinction between these parts is the packaging reel configuration (TR13 versus TR7), which reflects different quantity packaging for tape and reel distribution but does not affect component performance or functionality.

Both parts maintain active production status and comply with ROHS3 and REACH requirements. The SMDB03CE3/TR7 currently has higher inventory availability (1359 units) compared to the SMDA03CE3/TR13 (738 units), making it a viable alternative when supply considerations are relevant.

For applications requiring the SMDA03CE3/TR13, the SMDB03CE3/TR7 can be selected without modification to circuit design, PCB layout, or assembly procedures. No electrical or thermal performance differences exist between these components.

Frequently Asked Questions (FAQ)

Q: Can SMDB03CE3/TR7 be used as a direct replacement for SMDA03CE3/TR13 in existing designs?

A: Yes. The SMDB03CE3/TR7 is a direct equivalent with identical electrical parameters, mechanical packaging, and compliance certifications. No circuit modifications are required.

Q: What is the difference between SMDA03CE3/TR13 and SMDB03CE3/TR7?

A: The primary difference is the reel configuration designation (TR13 versus TR7), which indicates different packaging quantities for tape and reel distribution. All electrical, thermal, and mechanical specifications are identical.

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both components use the 8-SOIC (0.154", 3.90mm Width) package with identical pin configurations and mounting requirements. PCB layouts designed for either part are interchangeable.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SMDA03CE3/TR13 and SMDB03CE3/TR7 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the operating temperature range for these TVS diodes?

A: Both parts operate across -55°C to 150°C junction temperature (TJ), suitable for industrial and commercial applications.

Q: Can these parts handle the same transient voltage events?

A: Yes. Both components feature identical clamping voltage (9V maximum @ Ipp), peak pulse current (5A at 8/20µs), and peak pulse power (300W) specifications.

Q: Are there any lead time or availability differences between these parts?

A: The SMDB03CE3/TR7 currently has higher inventory availability (1359 units) compared to SMDA03CE3/TR13 (738 units). Both parts are in active production status.