Equivalent & Substitute Parts Reference: SMBJ5374C/TR13

Part Overview

SMBJ5374C/TR13 by Microchip Technology is a Zener diode designed for voltage regulation and protection applications. It features a nominal Zener voltage of 75 V, power rating of 5 W, ±2% tolerance, and is provided in the surface-mount DO-214AA (SMBJ) package. The part is actively manufactured, with a current inventory available. Alternative models may be required to support multiparty sourcing, ROHS compliance, or system design constraints.

Key Parameters

Parameter	Main Part (SMBJ5374C/TR13)
Manufacturer Part Number	SMBJ5374C/TR13
Category	Diodes, Zener
Voltage - Zener (Nom) (Vz)	75 V
Tolerance	±2%
Power - Max	5 W
Impedance (Max) (Zzt)	45 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 54 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A
Operating Temperature	-65°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
Supplier Device Package	SMBJ (DO-214AA)
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.10.0050

Substitute Part Grouping Explanation

Substitute parts are grouped based on exact matching of essential Zener diode parameters: Zener voltage (Vz), mounting package (DO-214AA, SMB), and category (Diodes, Zener). Substitution is determined by nominal voltage, package compatibility, and electrical ratings as provided. Other comparative parameters include tolerance, power rating, impedance, reverse leakage, operating temperature, RoHS/REACH status, and ECCN/HTSUS codes.

Parameter Comparison

Parameter	Main Part SMBJ5374C/TR13	Substitute Part 1SMB5946B-13
Manufacturer Part Number	SMBJ5374C/TR13	1SMB5946B-13
Category	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	75 V	75 V
Tolerance	±2%	±5%
Power - Max	5 W	3 W
Impedance (Max) (Zzt)	45 Ohms	140 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 54 V	1 µA @ 56 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB	DO-214AA, SMB
Supplier Device Package	SMBJ (DO-214AA)	SMB
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050

Engineering Selection Recommendations

Selection must account for active part status and regulatory compliance. SMBJ5374C/TR13 is RoHS non-compliant, while 1SMB5946B-13 is ROHS3 Compliant. Both have active product status and similar operating conditions. Moisture Sensitivity Level (MSL), REACH status, ECCN, and HTSUS codes are identical. Considering compliance criteria, 1SMB5946B-13 satisfies ROHS and may align with stricter environmental or supply chain requirements.

Frequently Asked Questions (FAQ)

Q1: Which key parameters determine substitute suitability for Zener diodes?
A1: Zener voltage (Vz), package/case type, mounting type, tolerance, power rating, impedance, reverse leakage, forward voltage, and operating temperature.

Q2: Is package compatibility required for substituting SMBJ5374C/TR13?
A2: Yes. Substitutes must have the DO-214AA, SMB package and be surface-mountable.

Q3: How does RoHS compliance affect substitution?
A3: Substitute parts with ROHS3 compliance, such as 1SMB5946B-13, may be required for regulatory or environmental standards.

Q4: Are substitute parts with differing tolerance or power ratings valid?
A4: Only parameters shown are compared. Differences in tolerance, power rating, or impedance should be directly referenced against specified values.

Q5: Can any part with the same Zener voltage and package be directly substituted?
A5: Only when all other provided key parameters are met and the intended use matches the specifications.

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