SMCJ170CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMCJ170CE3/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 at a reverse standoff voltage of 170V with a maximum clamping voltage of 304V, featuring peak pulse power handling of 1.5 kW. The device is Active in product status and complies with RoHS3 and EAR99 regulations. Alternative part numbers are necessary when primary inventory is unavailable, when different performance characteristics better match specific application requirements, or when sourcing from alternative manufacturers is required.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	170	V
Voltage - Breakdown (Min)	189	V
Voltage - Clamping (Max) @ Ipp	304	V
Current - Peak Pulse (10/1000µs)	4.9	A
Power - Peak Pulse	1500	W
Operating Temperature Range	-65 to 150	°C (TJ)
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Equivalent and substitute parts for the SMCJ170CE3/TR13 are selected based on strict adherence to the following core parameters: Voltage - Reverse Standoff (170V nominal), Voltage - Breakdown (189V minimum), Package / Case (DO-214AB, SMC surface mount), Mounting Type (surface mount), and Type (Zener bidirectional TVS diode). Substitute parts must maintain the 170V reverse standoff voltage class and operate within the same package footprint and pin configuration to ensure direct board-level compatibility. Power handling capability, peak pulse current rating, and clamping voltage may vary across substitute part numbers while maintaining functional equivalence for general-purpose transient suppression applications. All listed substitutes are Active products in compliance with RoHS3 regulations.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case
SMCJ170CE3/TR13	Microchip Technology	170V	189V	304V	4.9A	1500W	-65 to 150°C	DO-214AB, SMC
5.0SMDJ170CA	MDE Semiconductor Inc	170V	189V	275V	18.2A	5000W	-55 to 150°C	DO-214AB, SMC
SMCJ170CA	Fairchild Semiconductor	170V	189V	275V	5.5A	1500W	-55 to 150°C	DO-214AB, SMC
SMCJ170CA-13-F	Diodes Incorporated	170V	189V	275V	5.5A	1500W	-55 to 150°C	DO-214AB, SMC
SMDJ170CA	Alpha & Omega Semiconductor Inc.	170V	189V	275V	11A	3000W	-55 to 150°C	DO-214AB, SMC
SMLJ170CA	Bourns Inc.	170V	189V	275V	11A	3000W	-55 to 150°C	DO-214AB, SMC

Engineering Selection Recommendations

All listed substitute parts are Active products compliant with RoHS3 specifications, ensuring continued availability and regulatory adherence. The SMCJ170CA option from Fairchild Semiconductor and SMCJ170CA-13-F from Diodes Incorporated provide pin-compatible replacements with identical power ratings (1500W) and peak pulse current (5.5A) to the primary part. The SMDJ170CA from Alpha & Omega Semiconductor and SMLJ170CA from Bourns offer increased power dissipation capability (3000W) and higher peak pulse current (11A), suitable for applications requiring enhanced transient energy absorption. The 5.0SMDJ170CA from MDE Semiconductor provides the highest power capacity (5000W) and peak pulse current (18.2A) for demanding overvoltage protection scenarios. Component selection should be based on application-specific transient energy requirements and thermal management constraints within the circuit design.

Frequently Asked Questions (FAQ)

Q: Can SMCJ170CA be used as a direct replacement for SMCJ170CE3/TR13? A: Yes. SMCJ170CA maintains identical voltage parameters (170V reverse standoff, 189V breakdown, 275V clamping), equivalent power rating (1500W), and matching DO-214AB surface mount packaging. The primary difference is the lower operating temperature minimum (-55°C vs. -65°C), which may affect applications in extreme cold environments.

Q: What is the difference between SMCJ170CA and SMDJ170CA? A: Both parts maintain the 170V voltage class and DO-214AB package but differ in performance capability. SMDJ170CA provides double the peak pulse current (11A vs. 5.5A) and double the power dissipation (3000W vs. 1500W), offering superior transient energy handling for higher-stress applications.

Q: Is the 5.0SMDJ170CA a suitable substitute if the application requires high-energy transient suppression? A: Yes. The 5.0SMDJ170CA maintains voltage specifications and package compatibility while delivering the highest power capacity (5000W) and peak pulse current (18.2A). However, note the minimum operating temperature is -55°C, which differs from the primary part's -65°C rating.

Q: Are all substitute parts surface-mount compatible with existing PCB layouts? A: All listed substitute parts use the DO-214AB SMC package and surface-mount configuration, ensuring PCB footprint compatibility. Verify pinout orientation during assembly, as all parts are functionally identical in layout requirements.

Q: What regulatory certifications apply to these substitute parts? A: All substitute parts are RoHS3 compliant. The SMLJ170CA from Bourns carries REACH Affected status, while remaining parts are REACH Unaffected. Verify regulatory requirements for your target market before final selection.

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