BZX584B8V2-TP Equivalent & Substitute Parts

Part Overview

The BZX584B8V2-TP is an active Zener diode manufactured by Micro Commercial Co, designed for surface mount applications requiring voltage regulation and transient protection. This component operates at a nominal Zener voltage of 8.2 V with a maximum power dissipation of 150 mW in the SOD-523 package. The part is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1), making it suitable for standard industrial and commercial applications. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design optimization, or supply chain considerations.

Substiute Parts

BZX584B8V2-TP

Micro Commercial CoIn Stock: 1149BZX584B8V2-TP Datasheet

Current PartRFQ

MM5Z8V2ST1G

onsemiIn Stock: 3997MM5Z8V2ST1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BZX584B8V2-TP are qualified based on the following critical parameters:

Electrical Equivalence Criteria:

• Nominal Zener voltage of 8.2 V
• Impedance (Max) of 15 Ohms
• Reverse leakage current of 700 nA @ 5 V
• Forward voltage of 900 mV @ 10 mA
• Voltage tolerance within ±2% or better

Mechanical & Environmental Compatibility:

• SOD-523 package / SC-79 case designation
• Surface mount mounting type
• Operating temperature range encompassing -55°C to 150°C
• ROHS3 compliance
• MSL 1 rating

Allowable Variations:

• Maximum power dissipation may exceed 150 mW (higher power rating is acceptable for the same voltage class)
• Voltage tolerance may be relaxed to ±2% (wider tolerance is acceptable)
• Operating temperature minimum may extend below -55°C (extended range is acceptable)

Parameter Comparison

Engineering Selection Recommendations

The MM5Z8V2ST1G qualifies as a direct substitute for the BZX584B8V2-TP based on the following engineering criteria:

Electrical Performance: Both parts maintain identical nominal Zener voltage (8.2 V), impedance (15 Ohms), reverse leakage current (700 nA @ 5 V), and forward voltage characteristics (900 mV @ 10 mA). The MM5Z8V2ST1G exhibits a voltage tolerance of ±2%, which is acceptable as it represents a relaxation of the BZX584B8V2-TP's ±1.95% specification.

Power Dissipation: The MM5Z8V2ST1G is rated for 500 mW maximum power dissipation, compared to the BZX584B8V2-TP's 150 mW rating. This higher power rating is compatible with applications designed for the 150 mW part, as the substitute can accommodate equal or lower power levels without performance degradation.

Thermal Operating Range: The MM5Z8V2ST1G operates across -65°C to 150°C, extending the minimum operating temperature by 10°C below the BZX584B8V2-TP's -55°C specification. This extended range is compatible with all applications qualified for the original part.

Compliance & Packaging: Both parts are ROHS3 compliant, carry MSL 1 ratings, and utilize identical SOD-523 packaging with surface mount mounting. No design modifications are required for mechanical or environmental compliance.

Product Status: Both parts maintain active product status with confirmed inventory availability, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the MM5Z8V2ST1G replace the BZX584B8V2-TP in existing designs without circuit modifications?

A: Yes. The MM5Z8V2ST1G is electrically and mechanically compatible with the BZX584B8V2-TP. Both parts share identical nominal Zener voltage, impedance, leakage current, and forward voltage characteristics. The SOD-523 package and surface mount configuration are identical, requiring no PCB layout changes.

Q: What is the significance of the higher power rating (500 mW vs. 150 mW) on the MM5Z8V2ST1G?

A: The higher power rating indicates the substitute can dissipate greater thermal energy without exceeding maximum junction temperature. For applications designed around the 150 mW specification, the 500 mW part operates within its safe operating area with additional thermal margin. No circuit redesign is necessary.

Q: Does the ±2% voltage tolerance of the MM5Z8V2ST1G affect circuit performance compared to the ±1.95% tolerance of the BZX584B8V2-TP?

A: The tolerance difference is negligible for most applications. The ±2% specification represents a 0.05% relaxation from the original part's tolerance. Both parts maintain the same 8.2 V nominal Zener voltage and operate within acceptable voltage regulation parameters for standard circuit designs.

Q: Are there any temperature-related considerations when substituting the MM5Z8V2ST1G?

A: The MM5Z8V2ST1G extends the minimum operating temperature to -65°C, compared to the BZX584B8V2-TP's -55°C minimum. This extended range is compatible with all applications qualified for the original part and provides additional thermal margin for low-temperature environments.

Q: Do both parts require identical handling and storage procedures?

A: Yes. Both parts carry MSL 1 (Unlimited) ratings, indicating unlimited shelf life without moisture sensitivity concerns. Identical handling, storage, and reflow procedures apply to both the BZX584B8V2-TP and MM5Z8V2ST1G.

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

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8541.10.0050) classifications. No compliance documentation changes are required when substituting between these parts.

Q: Can the MM5Z8V2ST1G be used in high-reliability or military applications originally specified for the BZX584B8V2-TP?

A: Substitution eligibility for high-reliability or military applications depends on specific qualification requirements beyond the electrical and mechanical parameters provided. Consult application-specific qualification documentation and supplier certifications for such applications.