SMBJ48CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ48CE3/TR13 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 48V reverse standoff voltage and provides 85.5V maximum clamping voltage at peak pulse current. The part is actively produced and fully compliant with RoHS3 and REACH regulations.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter ranges. Alternative sources and packaging configurations may be required due to inventory availability, lead time considerations, or specific manufacturing requirements.

Substiute Parts

SMBJ48CE3/TR13

Microchip TechnologyIn Stock: 924SMBJ48CE3/TR13 Datasheet

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SMBJ48CA

MDDIn Stock: 5565SMBJ48CA Datasheet

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SMBJ48CA

MDDIn Stock: 5565SMBJ48CA Datasheet

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SMBJ48CA

MDDIn Stock: 5565SMBJ48CA Datasheet

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SMBJ48CA-13-F

Diodes IncorporatedIn Stock: 4189SMBJ48CA-13-F Datasheet

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SMBJ48CA-TR

STMicroelectronicsIn Stock: 3537SMBJ48CA-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ48CE3/TR13 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Voltage - Reverse Standoff (Typ): 48V (exact match required)
• Voltage - Breakdown (Min): 53.3V (exact match required)
• Power - Peak Pulse: 600W (exact match required)
• Bidirectional Channels: 1 (exact match required)

Mechanical Compatibility Requirements:

• Package / Case: DO-214AA, SMB (exact match required)
• Mounting Type: Surface Mount (exact match required)

Acceptable Variation Parameters:

• Voltage - Clamping (Max) @ Ipp: 77.4V to 85.5V (lower clamping voltage acceptable within application limits)
• Current - Peak Pulse (10/1000µs): 7.0A to 8.1A (higher current rating acceptable)
• Operating Temperature Range: -55°C to -65°C minimum; 150°C maximum (wider or equal range acceptable)

Compliance Requirements:

• RoHS3 Compliant (mandatory)
• Moisture Sensitivity Level 1 (mandatory)
• REACH Unaffected (mandatory)

Substitute parts meeting all electrical, mechanical, and compliance criteria are considered functionally equivalent for general-purpose transient voltage suppression applications.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain compliance with RoHS3, REACH, and MSL 1 requirements, ensuring regulatory equivalence with the SMBJ48CE3/TR13.

SMBJ48CA (MDD): This substitute provides equivalent reverse standoff voltage (48V) and breakdown voltage (53.3V) with reduced clamping voltage (77.4V versus 85.5V) and increased peak pulse current capability (7.8A versus 7A). The operating temperature range is -50°C to 150°C, which is narrower at the lower bound compared to the original part. This configuration is suitable for applications where lower clamping voltage is acceptable and higher current handling is beneficial.

SMBJ48CA-13-F (Diodes Incorporated): This substitute maintains all critical electrical parameters with 77.4V clamping voltage and 7.7A peak pulse current. The operating temperature range extends to -55°C minimum, providing broader low-temperature coverage than the MDD variant. Packaging is specified as Tape & Reel (TR), consistent with the original part's packaging format.

SMBJ48CA-TR (STMicroelectronics): This substitute offers the same reverse standoff and breakdown voltages with 77.4V clamping voltage and the highest peak pulse current rating (8.1A) among substitute options. Operating temperature range is -55°C to 150°C. Packaging is specified as Cut Tape (CT) & Digi-Reel®, providing alternative tape configuration options.

All substitute parts are actively produced and maintain identical package specifications (DO-214AA, SMB) and surface-mount mounting type, ensuring direct mechanical compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can SMBJ48CA (MDD) be used as a direct replacement for SMBJ48CE3/TR13?

A: SMBJ48CA meets all critical electrical parameters (48V reverse standoff, 53.3V breakdown, 600W peak pulse power) and mechanical requirements (DO-214AA SMB package, surface mount). The reduced clamping voltage (77.4V versus 85.5V) and narrower operating temperature range (-50°C to 150°C versus -65°C to 150°C) must be evaluated against specific application requirements. All regulatory compliance certifications (RoHS3, REACH, MSL 1) are equivalent.

Q: What is the difference between SMBJ48CA-13-F and SMBJ48CA-TR?

A: Both parts share identical electrical specifications (48V standoff, 53.3V breakdown, 77.4V clamping, 600W peak pulse). The primary differences are manufacturer (Diodes Incorporated versus STMicroelectronics), peak pulse current rating (7.7A versus 8.1A), and packaging format (Tape & Reel versus Cut Tape & Digi-Reel®). Operating temperature ranges are equivalent (-55°C to 150°C for both).

Q: Does the lower clamping voltage of substitute parts affect circuit protection?

A: Clamping voltage determines the maximum voltage transient suppression level. The SMBJ48CE3/TR13 clamps at 85.5V maximum, while substitute parts clamp at 77.4V maximum. Lower clamping voltage provides more aggressive transient suppression. Selection depends on protected component voltage ratings and transient energy specifications.

Q: Are all substitute parts available in Tape & Reel packaging?

A: SMBJ48CA-13-F is specified with Tape & Reel (TR) packaging, matching the original part's format. SMBJ48CA-TR uses Cut Tape (CT) & Digi-Reel® packaging. SMBJ48CA (MDD) packaging format is not specified in available data. Packaging format should be confirmed with supplier for automated assembly requirements.

Q: What is the operating temperature range difference between substitute options?

A: SMBJ48CE3/TR13 operates from -65°C to 150°C. SMBJ48CA (MDD) operates from -50°C to 150°C, providing a narrower low-temperature range. SMBJ48CA-13-F and SMBJ48CA-TR both operate from -55°C to 150°C, offering intermediate low-temperature coverage. Selection depends on application minimum operating temperature requirements.

Q: Are all parts RoHS3 and REACH compliant?

A: All identified substitute parts are RoHS3 Compliant and REACH Unaffected, matching the regulatory status of SMBJ48CE3/TR13. Moisture Sensitivity Level is 1 (Unlimited) for all parts, indicating no special moisture handling requirements.

Q: What is the peak pulse current difference between parts?

A: SMBJ48CE3/TR13 is rated for 7A peak pulse current. Substitute parts range from 7.7A to 8.1A, providing higher current handling capability. Higher current ratings do not negatively affect circuit performance and may provide additional design margin for transient energy absorption.