Equivalent & Substitute Parts for SMBJ5926A/TR13

Part Overview

SMBJ5926A/TR13 is a Zener diode from Microchip Technology within the Diodes, Zener category. It is specified as a surface-mount, 11 V nominal Zener voltage device with 2 W maximum power dissipation in the DO-214AA (SMBJ) package. The product is active and used for voltage regulation and protection in electronic designs. Substitution of this component may be required due to inventory needs, compliance requirements, or sourcing flexibility. Identifying alternative models ensures supply chain continuity without compromising critical parameters.

Key Parameters

Parameter	SMBJ5926A/TR13
Voltage - Zener (Nom) (Vz)	11 V
Tolerance	±10%
Power - Max	2 W
Impedance (Max) (Zzt)	5.5 Ohms
Current - Reverse Leakage @ Vr	1 µA @ 8.4 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 200 mA
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

Substitute Part Grouping Explanation

Substitution is determined strictly based on the following parameters: nominal Zener voltage (11 V), maximum impedance (5.5 Ohms), reverse leakage current (1 µA @ 8.4 V), maximum forward voltage (1.2 V @ 200 mA or below), case package compatibility (DO-214AA, SMB), mounting type (surface mount), power rating equal to or exceeding 2 W, operating temperature range (-65°C ~ 150°C), and MSL of 1 (Unlimited). RoHS and REACH compliance are listed for informational purposes and may influence selection depending on application requirements.

Parameter Comparison

Parameter	SMBJ5926A/TR13 (Microchip Technology)	1SMB5926BT3G (onsemi)	SZ1SMB5926BT3G (onsemi)
Category	Diodes, Zener	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	11 V	11 V	11 V
Tolerance	±10%	±5%	±5%
Power - Max	2 W	3 W	3 W
Impedance (Max) (Zzt)	5.5 Ohms	5.5 Ohms	5.5 Ohms
Current - Reverse Leakage @ Vr	1 µA @ 8.4 V	1 µA @ 8.4 V	1 µA @ 8.4 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 200 mA	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
Supplier Device Package	SMBJ (DO-214AA)	SMB	SMB
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

Engineering Selection Recommendations

The main part, SMBJ5926A/TR13, is active and RoHS non-compliant. Substitute parts 1SMB5926BT3G and SZ1SMB5926BT3G are both active and ROHS3 compliant, with the same nominal Zener voltage (11 V), impedance (5.5 Ohms), reverse leakage current (1 µA at 8.4 V), case (DO-214AA, SMB), and operating temperature range. Both alternatives offer higher power dissipation (3 W) and tighter tolerance (±5%). All listed parts have MSL 1 (Unlimited) and are REACH Unaffected.

Frequently Asked Questions (FAQ)

Q1: What key parameters must be matched when substituting SMBJ5926A/TR13 in a circuit?
A1: Substitution requires matching Zener voltage (11 V), impedance (5.5 Ohms), reverse leakage current (1 µA @ 8.4 V), maximum forward voltage, case/package type (DO-214AA, SMB), mounting type, operating temperature range, and power dissipation rating.

Q2: Are 1SMB5926BT3G and SZ1SMB5926BT3G electrically and mechanically compatible with SMBJ5926A/TR13?
A2: All listed parts have the same nominal Zener voltage, maximum impedance, reverse leakage characteristics, package (DO-214AA, SMB), and mounting configuration.

Q3: What is the significance of tolerance and power differences in the substitute parts?
A3: Substitute parts offer tighter tolerance (±5% vs. ±10%) and higher power rating (3 W vs. 2 W), remaining within or exceeding original specifications.

Q4: Are there any differences in compliance status among the parts?
A4: SMBJ5926A/TR13 is RoHS non-compliant. Both 1SMB5926BT3G and SZ1SMB5926BT3G are ROHS3 compliant. All parts are REACH Unaffected.

Q5: Do all substitute parts fit the same PCB footprint?
A5: Yes. All substitutes use the DO-214AA (SMB) surface mount package.

Q6: Is there a difference in moisture sensitivity among the parts?
A6: All parts are rated at MSL 1 (Unlimited).

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