SMBJ17CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ17CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a 17V reverse standoff voltage and provides clamping at 30.5V maximum, with a peak pulse current rating of 19.7A. The component is housed in a DO-214AA (SMB) package and is ROHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are identified based on matching electrical characteristics within acceptable tolerances and identical mechanical packaging requirements. Equivalent devices maintain the same reverse standoff voltage, breakdown voltage range, and surface-mount form factor while potentially offering different clamping voltages and peak pulse current specifications within the same product category.

Substiute Parts

SMBJ17CE3/TR13

Microchip TechnologyIn Stock: 886SMBJ17CE3/TR13 Datasheet

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SMBJ17CA

MeritekIn Stock: 22188SMBJ17CA Datasheet

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SMBJ17CA

MeritekIn Stock: 22188SMBJ17CA Datasheet

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SMBJ17CA-13-F

Diodes IncorporatedIn Stock: 25321SMBJ17CA-13-F Datasheet

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SMBJ17CA-TP

Micro Commercial CoIn Stock: 3722SMBJ17CA-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ17CE3/TR13 are qualified based on the following criteria:

Matching Parameters (Required for Substitution):

• Reverse standoff voltage: 17V (typical)
• Breakdown voltage minimum: 18.9V
• Bidirectional channels: 1
• Package type: DO-214AA (SMB)
• Mounting type: Surface Mount
• Device type: Zener TVS diode
• Peak pulse power rating: 600W
• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)

Variable Parameters (Acceptable Tolerance Range):

• Voltage clamping (Max) @ Ipp: 27.6V to 30.5V
• Current peak pulse (10/1000µs): 19.7A to 21.74A
• Operating temperature range: -55°C to 175°C (encompasses the original -65°C to 150°C specification)

All substitute parts listed maintain identical electrical classification, packaging, and compliance certifications. Variations in clamping voltage and peak pulse current remain within the functional envelope for general-purpose transient voltage suppression applications.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and full compliance with ROHS3 and REACH regulations. Selection among equivalent devices should be based on the following factors:

Clamping Voltage Consideration: The SMBJ17CE3/TR13 specifies a maximum clamping voltage of 30.5V, while all substitute parts specify 27.6V. In applications where lower clamping voltage provides improved protection margins, the substitute parts offer enhanced performance. In applications requiring the higher clamping voltage specification, the original SMBJ17CE3/TR13 remains the appropriate selection.

Peak Pulse Current: Substitute parts provide peak pulse current ratings of 21.7A to 21.74A, compared to the original 19.7A specification. This represents a 10% increase in current handling capability, which is compatible with the same 600W peak pulse power rating and DO-214AA package thermal characteristics.

Operating Temperature Range: The SMBJ17CA-TP variant extends the upper operating temperature to 175°C, compared to 150°C for the original part. The SMBJ17CA and SMBJ17CA-13-F variants reduce the lower operating temperature to -55°C, compared to -65°C for the original part. Selection depends on specific application temperature requirements.

Availability and Inventory: Substitute parts demonstrate higher inventory levels across multiple manufacturers, supporting supply chain continuity and lead-time optimization.

Frequently Asked Questions (FAQ)

Q: Can SMBJ17CA (Meritek) be used as a direct replacement for SMBJ17CE3/TR13?

A: SMBJ17CA is electrically compatible as a substitute. Both devices share identical reverse standoff voltage (17V), breakdown voltage (18.9V minimum), peak pulse power (600W), package type (DO-214AA/SMB), and compliance certifications. The substitute provides lower clamping voltage (27.6V vs. 30.5V) and higher peak pulse current (21.74A vs. 19.7A). Operating temperature range differs: SMBJ17CA operates -55°C to 150°C versus the original -65°C to 150°C. Substitution is valid when the lower clamping voltage and reduced low-temperature specification are acceptable for the application.

Q: What is the difference between SMBJ17CA-13-F and SMBJ17CA-TP?

A: Both parts are manufactured by different suppliers (Diodes Incorporated and Micro Commercial Co, respectively) but share identical electrical specifications: 17V reverse standoff, 18.9V breakdown minimum, 27.6V clamping maximum, and 21.7A peak pulse current. The primary difference is operating temperature range: SMBJ17CA-13-F operates -55°C to 150°C, while SMBJ17CA-TP extends to -55°C to 175°C. Package designation also differs slightly (SMB vs. DO-214AA (SMB)), though both reference the same DO-214AA physical form factor.

Q: Are all substitute parts in the same DO-214AA package?

A: Yes. All listed substitute parts use the DO-214AA (SMB) surface-mount package, identical to the original SMBJ17CE3/TR13. This ensures mechanical and thermal compatibility in existing PCB layouts without modification.

Q: Why do substitute parts have lower clamping voltage than the original?

A: The substitute parts (SMBJ17CA variants) specify 27.6V maximum clamping voltage compared to 30.5V for the SMBJ17CE3/TR13. This is a characteristic variation within the SMBJ17 product family. Lower clamping voltage provides tighter voltage regulation and improved transient suppression in many applications. Selection between higher and lower clamping voltage depends on circuit protection requirements and voltage tolerance specifications.

Q: Are all parts ROHS3 compliant?

A: Yes. The SMBJ17CE3/TR13 and all listed substitute parts are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). All parts are REACH unaffected and carry EAR99 export classification.

Q: Can I use SMBJ17CA-TP in applications requiring -65°C operation?

A: No. SMBJ17CA-TP specifies a minimum operating temperature of -55°C. For applications requiring operation at -65°C, the original SMBJ17CE3/TR13 is the appropriate selection, as it is rated to -65°C minimum.