Equivalent & Substitute Parts for SMBJ5342B/TR13 Zener Diode

Part Overview

SMBJ5342B/TR13 by Microchip Technology is a surface-mount Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 6.8 V, a maximum power rating of 5 W, and a ±5% tolerance. The part is supplied in Tape & Reel (SMBJ/DO-214AA), suitable for automated assembly. Recent regulatory requirements and inventory considerations often necessitate identification of substitute models with equivalent electrical and mechanical parameters, particularly when compliance status or availability changes.

Key Parameters

Parameter	Description
Voltage - Zener (Nom) (Vz)	6.8 V
Tolerance	±5%
Power - Max	5 W
Impedance (Max) (Zzt)	1 Ohms
Current - Reverse Leakage @ Vr	10 µA @ 4.9 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)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	RoHS non-compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute candidates are evaluated strictly on matching the following defined parameters: Zener voltage (nominal and tolerance), maximum power rating, maximum impedance, reverse leakage current at test voltage, forward voltage at test current, operating temperature range, mounting type, and package/case. Mechanical compatibility is enforced by identical package code DO-214AA (SMB). These criteria ensure both electrical and mechanical interchangeability.

Parameter Comparison

Parameter	Main Part: SMBJ5342B/TR13	Substitute: SMBJ5342B-TP
Manufacturer	Microchip Technology	Micro Commercial Co
Voltage - Zener (Nom) (Vz)	6.8 V	6.8 V
Tolerance	±5%	±5%
Power - Max	5 W	5 W
Impedance (Max) (Zzt)	1 Ohms	1 Ohms
Current - Reverse Leakage @ Vr	10 µA @ 4.9 V	10 µA @ 5.2 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A	1.2 V @ 1 mA
Operating Temperature	-65°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB	DO-214AA, SMB
Supplier Device Package	SMBJ (DO-214AA)	DO-214AA (SMB)
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
RoHS Status	RoHS non-compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

SMBJ5342B-TP provides equivalent electrical and mechanical parameters to SMBJ5342B/TR13, as defined by the Zener voltage, tolerance, power rating, impedance, leakage current, mounting type, and package. SMBJ5342B-TP is ROHS3 compliant, while SMBJ5342B/TR13 is RoHS non-compliant. Both are listed as active status and feature unlimited MSL. No additional certifications beyond those specified are present.

Frequently Asked Questions (FAQ)

Q1: On what basis can SMBJ5342B-TP substitute for SMBJ5342B/TR13?
A1: SMBJ5342B-TP matches SMBJ5342B/TR13 in Zener voltage, tolerance, power rating, impedance, reverse leakage current, mounting type, and DO-214AA (SMB) package.

Q2: Are there differences in environmental compliance?
A2: SMBJ5342B-TP is ROHS3 compliant. SMBJ5342B/TR13 is RoHS non-compliant. Both parts are REACH unaffected and have unlimited moisture sensitivity level (MSL 1).

Q3: Is the physical form factor identical between the main and substitute parts?
A3: Yes, both use the DO-214AA, SMB surface-mount package for equivalent PCB footprint and soldering compatibility.

Q4: Are there inventory or availability differences?
A4: Inventory varies as provided: SMBJ5342B/TR13 offers 696 pcs, while SMBJ5342B-TP offers 4900 pcs in stock.

Q5: Are there any variations in electrical characteristics that limit substitution?
A5: All key parameters provided meet required equivalence for substitution. Differences in reverse leakage test voltage and forward voltage test current are documented as specified.

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