SMBJ22CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ22CE3/TR13 is an active Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, operating as a bidirectional Zener device in surface mount packaging. This component provides transient overvoltage protection in general purpose applications with a 22V reverse standoff voltage and 39.4V maximum clamping voltage. The part is currently in active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified when they maintain compatible electrical characteristics within the allowed parameter tolerance range for this TVS diode category, ensuring continued circuit protection performance.

Substiute Parts

SMBJ22CE3/TR13

Microchip TechnologyIn Stock: 1103SMBJ22CE3/TR13 Datasheet

Current PartRFQ

SMBJ22CA

MDDIn Stock: 25457SMBJ22CA Datasheet

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SMBJ22CA

MDDIn Stock: 25457SMBJ22CA Datasheet

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SMBJ22CA

MDDIn Stock: 25457SMBJ22CA Datasheet

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SMBJ22CA-13-F

Diodes IncorporatedIn Stock: 4233SMBJ22CA-13-F Datasheet

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SMBJ22CA-TR

STMicroelectronicsIn Stock: 15136SMBJ22CA-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution validity for the SMBJ22CE3/TR13 is determined by equivalence across the following critical electrical parameters:

• Reverse Standoff Voltage: All substitutes must maintain 22V nominal rating
• Breakdown Voltage (Min): All substitutes must meet 24.4V minimum threshold
• Clamping Voltage (Max) @ Ipp: Substitutes with clamping voltage up to 39.4V are acceptable; lower clamping voltages (35.5V) provide improved overvoltage limiting performance
• Peak Pulse Current (10/1000µs): Minimum 15.2A required; higher ratings (16.9A–17.7A) offer design margin
• Peak Pulse Power: 600W standard across all variants
• Package & Form Factor: DO-214AA/SMB surface mount only; Tape & Reel or Cut Tape packaging acceptable
• Compliance Status: RoHS3 compliance and MSL 1 required for equivalent substitution
• Operating Temperature Range: Minimum -55°C to +150°C acceptable; extended low-temperature ratings (-65°C) provide additional margin

The identified substitutes (SMBJ22CA variants from MDD, Diodes Incorporated, and STMicroelectronics) meet all established electrical equivalence criteria and are confirmed active products with full compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and full RoHS3 compliance with MSL 1 ratings, meeting the certification and availability requirements for production use. The SMBJ22CA variants from MDD, Diodes Incorporated, and STMicroelectronics are electrically equivalent to the primary part with respect to standoff voltage, breakdown voltage, and peak pulse power specifications.

The primary distinction among substitutes is the reduced clamping voltage (35.5V versus 39.4V), which represents improved overvoltage limiting performance. The enhanced peak pulse current ratings (16.9A–17.7A versus 15.2A) provide additional design margin without introducing compatibility issues.

For applications requiring the extended low-temperature operating range (-65°C), the primary part SMBJ22CE3/TR13 maintains this specification. For general applications within the -55°C to +150°C range, all substitute parts remain fully qualified. The choice between MDD, Diodes Incorporated, and STMicroelectronics variants depends solely on inventory availability and supply chain requirements, as electrical performance and compliance certifications are equivalent.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ22CA (35.5V clamping) replace the SMBJ22CE3/TR13 (39.4V clamping) directly? A: Yes. The lower clamping voltage of the SMBJ22CA represents improved transient suppression without creating circuit incompatibility. Both devices maintain the same 22V standoff and 24.4V breakdown specifications, ensuring equivalent protection thresholds.

Q: What is the impact of higher peak pulse current ratings (16.9A–17.7A vs. 15.2A)? A: Higher peak pulse current capacity provides additional design margin and does not affect circuit operation. These ratings indicate the component is rated for equal or greater transient current handling, maintaining or exceeding the original design specification.

Q: Are packaging variations (Tape & Reel versus Cut Tape) significant for substitution? A: No. Packaging format differences (Tape & Reel, Cut Tape, Digi-Reel) affect only procurement and handling methods. The electrical device within the DO-214AA/SMB package remains identical, and all formats are suitable for surface mount assembly.

Q: What is the significance of the MSL 1 rating? A: MSL 1 indicates unlimited shelf life without moisture baking requirements, reflecting the component's robust design. All equivalent parts carry the same MSL 1 rating, confirming identical storage and handling capabilities.

Q: Does the operating temperature range difference (-65°C vs. -50°C/-55°C) affect substitution validity? A: The primary part's extended low-temperature rating (-65°C) exceeds the specification of most substitutes (-50°C or -55°C). For applications requiring operation below -50°C, only the original SMBJ22CE3/TR13 or the SMBJ22CA-13-F and SMBJ22CA-TR variants (which reach -55°C) are qualified. For applications within -50°C to +150°C, all variants are valid.

Q: What certifications apply to all equivalent parts? A: All parts listed are RoHS3 compliant, MSL 1 rated, and carry active product status. ECCN classification (EAR99) and HTSUS code (8541.10.0080) are identical across all variants, confirming equivalent regulatory and trade compliance.