3SMBJ5953B-TP Equivalent & Substitute Parts

Part Overview

The 3SMBJ5953B-TP is a 3 W Zener diode manufactured by Micro Commercial Co, rated for 150 V nominal Zener voltage with ±5% tolerance. This component operates in the Surface Mount category using the DO-214AA (SMB) package and is classified as Active product status. Substitute parts are identified when electrical specifications, mechanical packaging, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.

Substiute Parts

3SMBJ5953B-TP

Micro Commercial CoIn Stock: 11043SMBJ5953B-TP Datasheet

Current PartRFQ

1SMB5953B

Good-Ark SemiconductorIn Stock: 68361SMB5953B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3SMBJ5953B-TP are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Voltage - Zener (Nom): 150 V
• Tolerance: ±5%
• Power - Max: 3 W
• Impedance (Max): 600 Ohms
• Current - Reverse Leakage @ Vr: 1 µA @ 114 V
• Voltage - Forward (Vf) (Max) @ If: 1.5 V @ 200 mA
• Operating Temperature Range: -65°C to 150°C
• Package / Case: DO-214AA (SMB)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed in this document meet these parameters identically and are therefore electrically and mechanically interchangeable with the original component.

Parameter Comparison

Engineering Selection Recommendations

Both the 3SMBJ5953B-TP and 1SMB5953B are Active product status components with identical electrical and mechanical specifications. Selection between these parts is based on availability, supply chain considerations, and compliance requirements.

Compliance Considerations:

• Both components are ROHS3 Compliant
• Both are REACH Unaffected
• Both carry ECCN classification EAR99
• Moisture Sensitivity Level 1 (Unlimited) indicates no special storage or handling requirements for either part

Inventory Availability: The 1SMB5953B (Good-Ark Semiconductor) maintains higher inventory levels (6821 Pcs) compared to the 3SMBJ5953B-TP (1090 Pcs), which may influence procurement decisions for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the 1SMB5953B directly replace the 3SMBJ5953B-TP in existing designs?

A: Yes. Both components share identical electrical parameters (150 V Zener voltage, 3 W power rating, ±5% tolerance, 600 Ohms maximum impedance) and are packaged in the same DO-214AA (SMB) Surface Mount case. No circuit design changes are required.

Q: Are there differences in operating temperature ranges between these parts?

A: No. Both components operate across the identical temperature range of -65°C to 150°C (TJ), ensuring equivalent thermal performance in all operating conditions.

Q: Do both parts require the same PCB footprint and assembly process?

A: Yes. Both components use the DO-214AA (SMB) package with Surface Mount mounting type, resulting in identical PCB footprints and automated assembly compatibility.

Q: What is the significance of the ±5% tolerance specification?

A: The ±5% tolerance indicates the maximum deviation of the Zener voltage from the nominal 150 V rating. Both parts maintain this tolerance specification, ensuring equivalent voltage regulation performance.

Q: Are there any compliance or regulatory differences between these substitutes?

A: No. Both components are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99, providing identical compliance status for regulatory and export requirements.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean for storage and handling?

A: MSL 1 (Unlimited) indicates these components have no moisture sensitivity restrictions. Standard storage conditions without specialized dry-pack or desiccant requirements apply to both parts.