SMCJ45CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMCJ45CE3/TR13 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This surface-mount component operates in the 45V reverse standoff voltage class and is housed in a DO-214AB (SMC) package. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified based on matching electrical characteristics within the 45V voltage class, identical package form factors, and compatible operating temperature ranges. Equivalent components maintain the same reverse standoff voltage, breakdown voltage range, and bidirectional channel configuration while potentially offering different clamping voltages, peak pulse currents, or power dissipation ratings.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	SMCJ45CE3/TR13	—
Manufacturer	Microchip Technology	—
Category	Transient Voltage Suppressors (TVS)	—
Type	Zener	—
Bidirectional Channels	1	—
Voltage - Reverse Standoff (Typ)	45	V
Voltage - Breakdown (Min)	50	V
Voltage - Clamping (Max) @ Ipp	80.3	V
Current - Peak Pulse (10/1000µs)	18.7	A
Power - Peak Pulse	1500	W
Operating Temperature Range	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	DO-214AB, SMC	—
Packaging Format	Tape & Reel (TR)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitute parts for the SMCJ45CE3/TR13 are qualified based on the following electrical and mechanical criteria:

Primary Matching Criteria:

Voltage - Reverse Standoff (Typ): 45V
Voltage - Breakdown (Min): 50V
Bidirectional Channels: 1
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Type: Zener

Secondary Compatibility Factors:

Voltage - Clamping (Max) @ Ipp: Range 72.7V to 80.3V
Current - Peak Pulse (10/1000µs): Range 18.7A to 68.8A
Power - Peak Pulse: Range 1500W to 5000W
Operating Temperature: Minimum -65°C to -50°C; Maximum 150°C to 175°C
RoHS3 Compliance and MSL 1 rating

All identified substitute parts maintain the core 45V voltage class specification and DO-214AB package form factor. Variations in clamping voltage, peak pulse current, and power dissipation reflect different device designs within the same voltage protection class. Operating temperature ranges vary by manufacturer but all substitutes support the critical -55°C to 150°C window or broader ranges.

Parameter Comparison

Part Number	Manufacturer	Reverse Standoff (V)	Breakdown Min (V)	Clamping Max @ Ipp (V)	Peak Pulse Current (A)	Peak Pulse Power (W)	Temp Range (°C)	Package	RoHS3
SMCJ45CE3/TR13	Microchip Technology	45	50	80.3	18.7	1500	-65 to 150	DO-214AB, SMC	Yes
5.0SMDJ45CA	MDE Semiconductor Inc	45	50	72.7	68.8	5000	-55 to 150	DO-214AB, SMC	Yes
SMCJ45CA	MDD	45	50	72.7	20.6	1500	-50 to 150	DO-214AB, SMC	Yes
SMCJ45CA-13-F	Diodes Incorporated	45	50	72.7	20.6	1500	-55 to 150	DO-214AB, SMC	Yes
SMCJ45CA-TP	Micro Commercial Co	45	50	72.7	20.6	1500	-55 to 175	DO-214AB, SMC	Yes
SMDJ45CA	Alpha & Omega Semiconductor Inc.	45	50	72.7	41.3	3000	-55 to 150	DO-214AB, SMC	Yes

Engineering Selection Recommendations

All substitute parts listed maintain active product status and full RoHS3 compliance, meeting regulatory requirements equivalent to the SMCJ45CE3/TR13. Selection among substitutes depends on application-specific requirements within the 45V voltage class:

For applications requiring maximum clamping voltage control: The SMCJ45CE3/TR13 (80.3V clamping) and 5.0SMDJ45CA (72.7V clamping) represent the upper and lower bounds of the clamping voltage range. The Microchip part offers the highest clamping voltage specification.

For applications requiring extended temperature operation: SMCJ45CA-TP supports operation to 175°C maximum junction temperature, exceeding the standard 150°C upper limit. The SMCJ45CE3/TR13 supports the widest lower temperature range at -65°C.

For applications requiring higher peak pulse current handling: The 5.0SMDJ45CA (68.8A) and SMDJ45CA (41.3A) provide significantly higher peak pulse current ratings compared to the SMCJ45CE3/TR13 (18.7A), with corresponding increases in peak pulse power dissipation (5000W and 3000W respectively).

For direct electrical equivalence: SMCJ45CA-13-F and SMCJ45CA-TP provide matching peak pulse current (20.6A) and power dissipation (1500W) specifications with the SMCJ45CE3/TR13, differing primarily in operating temperature ranges and packaging format.

All substitute parts are available in active inventory with unlimited moisture sensitivity rating (MSL 1), supporting standard surface-mount assembly processes without special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can SMCJ45CA-TP be used as a direct replacement for SMCJ45CE3/TR13?

A: Yes, within the constraints of your application's temperature requirements. Both parts share identical reverse standoff voltage (45V), breakdown voltage (50V minimum), peak pulse current (20.6A), and power dissipation (1500W). The primary difference is clamping voltage: SMCJ45CE3/TR13 clamps at 80.3V maximum while SMCJ45CA-TP clamps at 72.7V maximum. SMCJ45CA-TP also supports extended temperature operation to 175°C versus 150°C for the Microchip part.

Q: What is the significance of the different clamping voltages (80.3V vs 72.7V)?

A: Clamping voltage determines the maximum voltage that appears across the protected circuit during a transient event. Lower clamping voltage provides tighter voltage regulation but may require higher peak pulse current handling. The SMCJ45CE3/TR13 at 80.3V clamping is suitable for applications tolerating higher transient voltages, while 72.7V clamping parts provide more aggressive voltage suppression.

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

A: Most substitute parts are available in Tape & Reel (TR) format. SMCJ45CA-13-F is supplied in Cut Tape (CT) & Digi-Reel® format. Verify packaging format requirements with your procurement specification before selection.

Q: Does the 5.0SMDJ45CA offer advantages over the SMCJ45CE3/TR13?

A: The 5.0SMDJ45CA provides significantly higher peak pulse current (68.8A versus 18.7A) and power dissipation (5000W versus 1500W), making it suitable for applications requiring greater transient energy absorption. However, it clamps at 72.7V versus 80.3V. Selection depends on whether your application requires higher current handling or higher clamping voltage tolerance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed are RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, matching the compliance profile of the SMCJ45CE3/TR13.

Q: What is the operating temperature consideration when selecting a substitute?

A: The SMCJ45CE3/TR13 supports -65°C to 150°C operation. Most substitutes support -55°C to 150°C, which is acceptable for most industrial applications. SMCJ45CA-TP extends the upper limit to 175°C for high-temperature environments. Verify your application's minimum operating temperature requirement before selecting a substitute with a -50°C lower limit.

Q: Can SMDJ45CA replace SMCJ45CE3/TR13 in high-current transient environments?

A: Yes, SMDJ45CA is suitable for applications requiring higher transient current handling (41.3A versus 18.7A) and power dissipation (3000W versus 1500W). Both parts maintain the 45V voltage class and DO-214AB package. Verify that the 72.7V clamping voltage meets your circuit protection requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message