SMBJ48CA-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ48CA-M3/52 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 48V reverse standoff category and is designed for general-purpose transient protection applications. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and manufacturing specifications. Alternative sources and packaging variants are available to support supply chain flexibility and design requirements.

Substiute Parts

SMBJ48CA-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 842SMBJ48CA-M3/52 Datasheet

Current PartRFQ

SMBJ48CA-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 3578SMBJ48CA-E3/5B Datasheet

DirectRFQ

SMBJ48CD-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 6467SMBJ48CD-M3/H Datasheet

DirectRFQ

SMBJ48CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 16436SMBJ48CA-E3/52 Datasheet

MFR RecommendedRFQ

SMBJ48CA

MDDIn Stock: 5565SMBJ48CA Datasheet

DirectRFQ

SMBJ48CA

MDDIn Stock: 5565SMBJ48CA Datasheet

DirectRFQ

SMBJ48CA-13-F

Diodes IncorporatedIn Stock: 4189SMBJ48CA-13-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ48CA-M3/52 are classified based on electrical parameter equivalence and package compatibility. The primary substitution criteria are:

• Voltage - Reverse Standoff (Typ): 48V
• Voltage - Clamping (Max) @ Ipp: 77.4V or within acceptable tolerance
• Current - Peak Pulse (10/1000µs): 7.8A or equivalent
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Product Status: Active

Parts are grouped into three categories:

Direct Equivalents (Identical Electrical Specifications): SMBJ48CA-E3/5B and SMBJ48CA-E3/52 maintain identical clamping voltage (77.4V) and peak pulse current (7.8A) specifications with full parameter alignment.

Manufacturer Variants (Alternate Packaging/Sourcing): SMBJ48CA (MDD) provides equivalent electrical performance with alternative packaging designation and operating temperature range (-50°C ~ 150°C).

Near-Equivalent Alternatives (Minor Parameter Variance): SMBJ48CD-M3/H exhibits clamping voltage of 76.3V and peak pulse current of 7.9A, representing acceptable tolerance variation within the 48V TVS diode category. SMBJ48CA-13-F (Diodes Incorporated) provides 77.4V clamping with 7.7A peak pulse current.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active production status and RoHS3 compliance, ensuring long-term availability and regulatory alignment with the original SMBJ48CA-M3/52.

Primary Substitutes: SMBJ48CA-E3/5B and SMBJ48CA-E3/52 are direct electrical equivalents with identical specifications and full parameter alignment. These parts are recommended for applications requiring exact performance matching.

Secondary Substitutes: SMBJ48CD-M3/H and SMBJ48CA-13-F are functionally equivalent within standard TVS diode tolerance ranges. The SMBJ48CD-M3/H exhibits 76.3V clamping voltage (1.1V variance) and 7.9A peak pulse current (0.1A variance). The SMBJ48CA-13-F provides 77.4V clamping with 7.7A peak pulse current (0.1A variance). These parts are suitable for applications where minor parameter variance is acceptable.

Alternate Source: SMBJ48CA (MDD) provides equivalent electrical performance with operating temperature range of -50°C ~ 150°C, which is 5°C narrower at the lower bound compared to the original part. This variant is suitable for applications not requiring the full -55°C minimum temperature specification.

Frequently Asked Questions (FAQ)

Q: Can SMBJ48CA-E3/5B be used as a direct replacement for SMBJ48CA-M3/52?

A: Yes. Both parts are manufactured by Vishay General Semiconductor with identical electrical specifications: 48V reverse standoff, 77.4V clamping voltage, and 7.8A peak pulse current. The difference is in packaging designation and tape reel configuration. Both are DO-214AA, SMB package format suitable for surface mount assembly.

Q: What is the difference between SMBJ48CA-M3/52 and SMBJ48CD-M3/H?

A: Both parts are Vishay TransZorb® series TVS diodes in DO-214AA, SMB package. The SMBJ48CD-M3/H has a clamping voltage of 76.3V (versus 77.4V) and peak pulse current of 7.9A (versus 7.8A). These represent minor parameter variations within acceptable tolerance for 48V TVS diode applications. Selection depends on whether the specific clamping voltage specification is critical to the circuit design.

Q: Is the MDD SMBJ48CA suitable for applications requiring -55°C operation?

A: The MDD SMBJ48CA has an operating temperature range of -50°C ~ 150°C, which does not extend to -55°C. If the application requires operation at -55°C, use Vishay or Diodes Incorporated variants that specify -55°C ~ 150°C operating range.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the regulatory and environmental specifications of the original SMBJ48CA-M3/52.

Q: Can SMBJ48CA-13-F (Diodes Incorporated) replace SMBJ48CA-M3/52?

A: Yes. The SMBJ48CA-13-F provides 77.4V clamping voltage with 7.7A peak pulse current (0.1A lower than the original 7.8A specification). This represents a minor variance within standard TVS diode tolerance and is suitable for general-purpose transient protection applications. Both parts are active, RoHS3 compliant, and use DO-214AA, SMB package format.