Equivalent & Substitute Parts for 3SMBJ5916B-TP

Part Overview

The 3SMBJ5916B-TP is a Zener diode manufactured by Micro Commercial Co, rated at 4.3 V nominal voltage with 3 W maximum power dissipation in a DO-214AA (SMB) surface mount package. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. The substitute part maintains identical electrical specifications and package compatibility, enabling direct replacement in existing circuit designs.

Substiute Parts

3SMBJ5916B-TP

Micro Commercial CoIn Stock: 11013SMBJ5916B-TP Datasheet

Current PartRFQ

1SMB5916BT3G

onsemiIn Stock: 311201SMB5916BT3G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3SMBJ5916B-TP with the 1SMB5916BT3G is valid based on the following criteria:

Electrical Parameter Equivalence:

• Zener voltage: 4.3 V (identical)
• Tolerance: ±5% (identical)
• Maximum power dissipation: 3 W (identical)
• Impedance (Max): 6 Ohms (identical)
• Reverse leakage current: 5 µA @ 1 V (identical)
• Forward voltage: 1.5 V @ 200 mA (identical)

Mechanical and Environmental Compatibility:

• Package type: DO-214AA, SMB (identical)
• Mounting type: Surface Mount (identical)
• RoHS3 compliance: Both parts compliant
• Moisture sensitivity: MSL 1 (Unlimited) for both parts
• REACH status: Both parts unaffected

Product Status Consideration: The substitute part 1SMB5916BT3G is active status, providing long-term availability and supply chain continuity for the obsolete 3SMBJ5916B-TP.

Parameter Comparison

Engineering Selection Recommendations

The 1SMB5916BT3G is a direct functional equivalent to the 3SMBJ5916B-TP for all circuit applications requiring a 4.3 V, 3 W Zener diode in SMB package format. Selection of the substitute part is supported by:

Compliance and Certification:

• Both parts maintain ROHS3 compliance
• Both parts are REACH unaffected
• Both parts carry identical ECCN and HTSUS classifications

Operational Advantages:

• The substitute part features an extended lower operating temperature limit (-65°C versus -55°C), providing broader environmental compatibility
• Active product status of the substitute ensures sustained availability and manufacturing support

Procurement Continuity:

• The obsolete status of the main part necessitates transition to an active equivalent
• The substitute part is currently in stock with substantial inventory availability

Frequently Asked Questions (FAQ)

Q: Can the 1SMB5916BT3G directly replace the 3SMBJ5916B-TP in existing designs?

A: Yes. Both parts share identical electrical specifications (4.3 V nominal voltage, 3 W power rating, ±5% tolerance, 6 Ohms maximum impedance) and are packaged in the DO-214AA (SMB) surface mount format. No circuit modifications are required.

Q: What is the significance of the different operating temperature ranges?

A: The substitute part 1SMB5916BT3G operates from -65°C to 150°C, compared to the main part's -55°C to 150°C range. This extended lower temperature limit provides additional operational margin in cold environment applications. For applications within the -55°C to 150°C window, both parts perform identically.

Q: Are there packaging differences between these parts?

A: Both parts use the DO-214AA (SMB) package. The main part is supplied in standard packaging, while the substitute is available in Cut Tape (CT) and Digi-Reel® formats. The physical component dimensions and PCB footprint are identical.

Q: Why is the main part listed as obsolete?

A: The 3SMBJ5916B-TP is classified as obsolete by the manufacturer. The 1SMB5916BT3G maintains active product status, ensuring continued manufacturing, quality assurance, and supply chain availability.

Q: Are compliance certifications identical between both parts?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8541.10.0050) classifications. Moisture sensitivity level is MSL 1 (Unlimited) for both parts.

Q: What is the reverse leakage current specification?

A: Both parts specify 5 µA maximum reverse leakage current at 1 V. This parameter is identical across both components.

Q: Are there inventory considerations for component selection?

A: The substitute part 1SMB5916BT3G has 31,073 pieces in current stock, providing immediate availability. The main part 3SMBJ5916B-TP, while showing 1,042 pieces in inventory, is obsolete and subject to discontinuation.