Equivalent & Substitute Parts Reference for SMBJ5348A/TR13 Zener Diode

Part Overview

SMBJ5348A/TR13 is a Microchip Technology Zener Diode, featuring an 11 V nominal Zener voltage, 5 W maximum power dissipation, ±10% tolerance, and surface mount DO-214AA (SMBJ) package. Product status is active. Alternative models are required when inventory constraints, compliance status, or specific supply chain requirements necessitate selection of substitute parts that fulfill the same electrical and mechanical specifications.

Key Parameters

Parameter	SMBJ5348A/TR13
Voltage - Zener (Nom) (Vz)	11 V
Tolerance	±10%
Power - Max	5 W
Impedance (Max) (Zzt)	2.5 Ohms
Current - Reverse Leakage @ Vr	5 µA @ 8 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)
Product Status	Active
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 diodes for SMBJ5348A/TR13 are identified according to critical parameters: Zener voltage (Vz), tolerance, maximum power dissipation, impedance, reverse leakage current, forward voltage, operating temperature range, mounting type, package/case compatibility, and compliance attributes. Parts listed share the same Zener voltage (11 V), surface mount DO-214AA-SMB format, and meet the required operating temperature range. Substitute parts differ in power rating, tolerance, and compliance status; these differences are detailed for clear selection.

Key substitution parameters:

Voltage - Zener (Nom) (Vz)
Tolerance
Power - Max
Package / Case
Operating Temperature
Mounting Type
Product Status
RoHS / REACH / MSL / ECCN

Parameter Comparison

Parameter	SMBJ5348A/TR13	1SMB5926BT3G	SZ1SMB5926BT3G
Manufacturer	Microchip Technology	onsemi	onsemi
Manufacturer Part Number	SMBJ5348A/TR13	1SMB5926BT3G	SZ1SMB5926BT3G
Category	Diodes, Zener	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	11 V	11 V	11 V
Tolerance	±10%	±5%	±5%
Power - Max	5 W	3 W	3 W
Impedance (Max) (Zzt)	2.5 Ohms	5.5 Ohms	5.5 Ohms
Current - Reverse Leakage @ Vr	5 µA @ 8 V	1 µA @ 8.4 V	1 µA @ 8.4 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A	1.5 V @ 200 mA	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Product Status	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050	8541.10.0050

Engineering Selection Recommendations

All listed Zener diode parts are active and available for immediate selection based on inventory status. SMBJ5348A/TR13 is RoHS non-compliant, while substitute parts 1SMB5926BT3G and SZ1SMB5926BT3G are ROHS3 compliant and REACH unaffected. Moisture Sensitivity Level for all options is 1 (Unlimited) and ECCN/HTSUS codes are identical. SZ1SMB5926BT3G includes automotive-grade qualification (AEC-Q101) in addition to compliance data provided. The substitute parts have a lower maximum power rating (3 W), narrower tolerance (±5%), and higher impedance (5.5 Ohms).

Frequently Asked Questions (FAQ)

Q1: What are the critical substitution criteria for SMBJ5348A/TR13?
A1: The essential criteria are Zener voltage (11 V), package (DO-214AA, SMB), surface mount type, and operating temperature. Power rating, tolerance, impedance, leakage current, forward voltage, and compliance characteristics also define substitution compatibility.

Q2: Does the mounting type or package impact substitute selection?
A2: Yes, surface mount format and DO-214AA (SMB) package are necessary for direct substitution and mechanical compatibility on the PCB.

Q3: Are all substitute parts compliant with RoHS requirements?
A3: SMBJ5348A/TR13 is RoHS non-compliant; both substitute parts (1SMB5926BT3G and SZ1SMB5926BT3G) are ROHS3 compliant.

Q4: Are there operating temperature differences between substitutes?
A4: All parts share the same operating temperature range of -65°C to 150°C.

Q5: Can automotive-grade devices be substituted for standard-grade components?
A5: SZ1SMB5926BT3G includes automotive-grade (AEC-Q101) qualification per provided information.

Q6: Are there differences in power dissipation between the main part and substitutes?
A6: SMBJ5348A/TR13 features 5 W maximum power, while both alternatives offer 3 W. This parameter must be considered for compatibility.

Q7: Do substitutes offer tighter electrical tolerances?
A7: Substitute parts have ±5% tolerance compared to ±10% for SMBJ5348A/TR13.

Q8: Is the reverse leakage current a factor for substitution?
A8: Yes. Substitute parts list 1 µA @ 8.4 V versus 5 µA @ 8 V for SMBJ5348A/TR13.

Q9: How do compliance features affect engineering choices?
A9: When RoHS/REACH or MSL compliance is a requirement, substitute parts offer suitable certification. Product status is active for all options.

Q10: Are all substitutes supplied in surface mount tape or cut tape packaging?
A10: SMBJ5348A/TR13 is Tape & Reel (TR); 1SMB5926BT3G is available in Cut Tape (CT) and Digi-Reel®. SZ1SMB5926BT3G is Tape & Reel (TR).

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