Equivalent & Substitute Parts for SMBJ5920B-TP

Part Overview

SMBJ5920B-TP, manufactured by Micro Commercial Co, is a surface-mount Zener diode in the DO-214AA (SMB) package with a nominal Zener voltage of 6.2 V, a maximum power dissipation of 1.5 W, and ±5% voltage tolerance. The part is currently active with available inventory. Identifying suitable alternative models is essential to ensure procurement flexibility, supply chain continuity, and drop-in mechanical and electrical compatibility within the same performance category.

Key Parameters

Parameter	Value
Manufacturer Part Number	SMBJ5920B-TP
Category	Diodes, Zener
Voltage - Zener (Nom) (Vz)	6.2 V
Tolerance	±5%
Power - Max	1.5 W
Impedance (Max) (Zzt)	2 Ohms
Current - Reverse Leakage @ Vr	5 µA @ 4 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
Status	Active

Substitute Part Grouping Explanation

Substitute Zener diodes in the DO-214AA (SMB) package are identified based on precise matching of the following key parameters: Zener voltage (6.2 V), voltage tolerance (±5%), maximum Zener impedance (2 Ohms), surface-mount package type, and compatible operating temperature range (-55°C ~ 150°C). Substitute parts must also meet or exceed the original part's power rating and maintain equivalent or better electrical and mechanical characteristics, as documented.

Allowed substitution is strictly defined by:

Zener voltage (nominal)
Tolerance
Power rating
Impedance (Zzt)
Reverse leakage current @ specified voltage
Forward voltage at specified current
Package/case type
Mounting type
Operating temperature range

Parameter Comparison

Parameter	SMBJ5920B-TP Micro Commercial Co	SMBZ5920B-E3/52 Vishay General Semiconductor - Diodes Division
Category	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	6.2 V	6.2 V
Tolerance	±5%	±5%
Power - Max	1.5 W	3 W
Impedance (Max) (Zzt)	2 Ohms	2 Ohms
Current - Reverse Leakage @ Vr	5 µA @ 4 V	200 µA @ 4 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA	1.5 V @ 200 mA
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB	DO-214AA, SMB
Status	Active	Active

Engineering Selection Recommendations

Both SMBJ5920B-TP and SMBZ5920B-E3/52 are active, REACH unaffected, and classified under ECCN: EAR99. SMBZ5920B-E3/52 meets ROHS3 compliance and has a Moisture Sensitivity Level (MSL) of 1 (Unlimited). Certification and compliance data allow direct selection when environmental and regulatory standards are required for end-product compliance.

Frequently Asked Questions (FAQ)

Q1: What electrical criteria must be met for Zener diode substitution within this category?
A: Zener voltage (nominal), voltage tolerance, maximum power, impedance, reverse leakage current at rated voltage, and maximum forward voltage at rated current must match or exceed the original specification.

Q2: Is the package type interchangeable between SMBJ5920B-TP and SMBZ5920B-E3/52?
A: Yes, both parts are specified in the DO-214AA (SMB) package and are surface-mount types.

Q3: Are there differences in power handling capabilities between these parts?
A: SMBJ5920B-TP has a maximum power rating of 1.5 W, while SMBZ5920B-E3/52 is rated at 3 W.

Q4: What compliance and regulatory standards are relevant in selecting substitutes?
A: Both parts are REACH unaffected and classified as EAR99. SMBZ5920B-E3/52 additionally meets ROHS3 compliance and is rated MSL 1 (Unlimited).

Q5: When selecting substitutes, is reverse leakage current a differentiating parameter?
A: Yes. SMBJ5920B-TP specifies 5 µA @ 4 V, while SMBZ5920B-E3/52 specifies 200 µA @ 4 V. This difference should be considered in circuit design where reverse leakage may be critical.

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