Equivalent & Substitute Parts for SMBJ4733A/TR13

Part Overview

SMBJ4733A/TR13 is a surface mount Zener diode manufactured by Microchip Technology, belonging to the Diodes, Zener category. The device features a Zener voltage of 5.1 V, 2 W maximum power dissipation, ±5% tolerance, and is supplied in DO-214AA (SMBJ) package. The product status is listed as Active, but it is RoHS non-compliant. Alternative models are sought for cases where RoHS compliance or other regulatory requirements are mandatory, or to meet specific inventory or supply chain needs.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Packaging	Description	Detailed Description	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Moisture Sensitivity Level (MSL)	REACH Status	Product Status
SMBJ4733A/TR13	Microchip Technology	Diodes, Zener	Tape & Reel (TR)	DIODE ZENER 5.1V 2W SMBJ	Zener Diode 5.1 V 2 W ±5% Surface Mount SMBJ (DO-214AA)	5.1 V	±5%	2 W	7 Ohms	10 µA @ 1 V	1.2 V @ 200 mA	-65°C ~ 150°C	Surface Mount	DO-214AA, SMB	SMBJ (DO-214AA)	RoHS non-compliant	1	REACH Unaffected	Active
CZRB5338B-HF	Comchip Technology	Diodes, Zener	Cut Tape (CT) & Digi-Reel®	DIODE ZENER 5.1V 5W SMB	Zener Diode 5.1 V 5 W ±5% Surface Mount SMB (DO-214AA)	5.1 V	±5%	5 W	1.5 Ohms	1 µA @ 1 V	1.2 V @ 200 mA	-55°C ~ 150°C	Surface Mount	DO-214AA, SMB	SMB (DO-214AA)	ROHS3 Compliant	1	REACH Unaffected	Active

Substitute Part Grouping Explanation

Substitution is based strictly on matching the following key parameters: Zener voltage (5.1 V nominal), tolerance (±5%), package type (DO-214AA, SMB), mounting type (surface mount), product category (Diodes, Zener), and supplier device package (SMBJ or SMB in DO-214AA). The alternative part must also maintain the same product status (Active). Differences in power rating, impedance, and reverse leakage current fall within the allowed substitute relationships if compatibility is defined strictly by the provided electrical and mechanical parameters above.

Parameter Comparison

Parameter	SMBJ4733A/TR13	CZRB5338B-HF
Manufacturer	Microchip Technology	Comchip Technology
Voltage - Zener (Nom) (Vz)	5.1 V	5.1 V
Tolerance	±5%	±5%
Power - Max	2 W	5 W
Impedance (Max) (Zzt)	7 Ohms	1.5 Ohms
Current - Reverse Leakage @ Vr	10 µA @ 1 V	1 µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 200 mA	1.2 V @ 200 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)	SMB (DO-214AA)
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1	1
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Active	Active

Engineering Selection Recommendations

Selection between SMBJ4733A/TR13 and CZRB5338B-HF can be made based on required compliance and product status. CZRB5338B-HF offers ROHS3 compliance, while SMBJ4733A/TR13 is RoHS non-compliant. Both are listed as Active and have REACH Unaffected status. Where regulatory compliance with RoHS is necessary, CZRB5338B-HF is suitable. Moisture Sensitivity Level for both devices is 1 (Unlimited), confirming identical handling during assembly.

Frequently Asked Questions (FAQ)

Q: What are the main criteria for substituting SMBJ4733A/TR13 with a different Zener diode?
A: Substitution is determined strictly by the nominal Zener voltage, tolerance, package type, mounting type, product category, supplier device package, product status, and compliance certifications.

Q: Are SMBJ4733A/TR13 and CZRB5338B-HF mechanically compatible?
A: Both parts are in DO-214AA, SMB package and are surface mount devices, confirming mechanical compatibility.

Q: Is RoHS compliance different between these two Zener diodes?
A: SMBJ4733A/TR13 is RoHS non-compliant, while CZRB5338B-HF is ROHS3 compliant. Selection should adhere strictly to required environmental standards for the application.

Q: Does the Moisture Sensitivity Level impact handling or mounting?
A: Both devices specify Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no special handling requirements are necessary for PCB assembly with respect to moisture sensitivity.

Q: Can both diodes be used within the same operating temperature range?
A: SMBJ4733A/TR13 is rated for -65°C ~ 150°C; CZRB5338B-HF for -55°C ~ 150°C. Selection should ensure the application falls within the common temperature range where both devices operate reliably.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message