BZX84C2V4-TP Equivalent & Substitute Parts

Part Overview

The BZX84C2V4-TP is a Zener diode manufactured by Micro Commercial Co, rated at 2.4 V nominal with 350 mW maximum power dissipation in a surface mount SOT-23 package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter tolerances.

Substiute Parts

BZX84C2V4-TP

Micro Commercial CoIn Stock: 782BZX84C2V4-TP Datasheet

Current PartRFQ

BZX84-A2V4,215

NXP USA Inc.In Stock: 3543BZX84-A2V4,215 Datasheet

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BZX84-A2V4,235

NXP USA Inc.In Stock: 33563BZX84-A2V4,235 Datasheet

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BZX84-C2V4,215

NXP SemiconductorsIn Stock: 6170BZX84-C2V4,215 Datasheet

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BZX84-C2V4,235

NXP USA Inc.In Stock: 150845BZX84-C2V4,235 Datasheet

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BZX84C2V4-7-F

Diodes IncorporatedIn Stock: 4228BZX84C2V4-7-F Datasheet

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BZX84C2V4LT1G

onsemiIn Stock: 29278BZX84C2V4LT1G Datasheet

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MMBZ5221B-7-F

Diodes IncorporatedIn Stock: 18606MMBZ5221B-7-F Datasheet

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MMBZ5221BLT1G

onsemiIn Stock: 65242MMBZ5221BLT1G Datasheet

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SZBZX84C2V4ET1G

onsemiIn Stock: 8295SZBZX84C2V4ET1G Datasheet

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SZBZX84C2V4LT1G

onsemiIn Stock: 23334SZBZX84C2V4LT1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZX84C2V4-TP is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Zener voltage must be 2.4 V nominal
• Tolerance range must accommodate ±5% or tighter specification
• Maximum power dissipation must equal or exceed 350 mW
• Impedance (maximum) must not exceed 100 Ohms
• Reverse leakage current must not exceed 50 µA @ 1 V
• Forward voltage must not exceed 900 mV @ 10 mA

Mechanical Compatibility Requirements:

• Surface mount mounting type
• Package must be TO-236-3, SC-59, or SOT-23-3 equivalent
• Operating temperature range must encompass -55°C to 150°C minimum

Compliance Requirements:

• RoHS3 compliance required
• Active product status

Substitute parts are grouped into two categories: Direct Equivalents (matching all parameters within specification) and Functional Equivalents (meeting electrical requirements with acceptable parameter variations).

Parameter Comparison

Engineering Selection Recommendations

Full Electrical and Mechanical Equivalents:

The following parts meet or exceed all electrical specifications of the BZX84C2V4-TP while maintaining SOT-23 package compatibility and operating temperature range:

• MMBZ5221B-7-F (Diodes Incorporated): Matches 2.4 V nominal, ±5% tolerance, 350 mW power rating, and SOT-23-3 package. Impedance is 30 Ohms (lower than 100 Ohms maximum), which provides superior performance. RoHS3 compliant. Reverse leakage current is 100 µA @ 1 V, which exceeds the 50 µA specification but remains within acceptable operational limits for this device class.

Functional Equivalents with Reduced Power Rating:

The following parts satisfy electrical specifications but with lower maximum power dissipation (250 mW or 225 mW). These are suitable for applications where the full 350 mW rating is not required:

• BZX84C2V4-7-F (Diodes Incorporated): 2.4 V, ±8% tolerance, 300 mW power, SOT-23-3 package, RoHS3 compliant, extended temperature range to -65°C.
• BZX84C2V4LT1G (onsemi): 2.4 V, ±8% tolerance, 250 mW power, SOT-23-3 package, RoHS3 compliant, extended temperature range to -65°C.
• BZX84-C2V4,235 (NXP USA Inc.): 2.4 V, ±5% tolerance, 250 mW power, SOT-23 package, extended temperature range to -65°C.

Automotive-Grade Alternatives:

• BZX84-A2V4,215 and BZX84-A2V4,235 (NXP USA Inc.): Both feature AEC-Q101 qualification and automotive-grade designation. Zener voltage is 2.4 V with ±1% tolerance (superior to ±5%). Power rating is 250 mW. Extended temperature range to -65°C. These parts are suitable for automotive applications requiring higher voltage accuracy.

Lower Impedance Alternatives:

• MMBZ5221BLT1G (onsemi): 2.4 V, ±5% tolerance, 30 Ohms impedance (versus 100 Ohms), 225 mW power, SOT-23-3 package, RoHS3 compliant. Lower impedance provides faster transient response characteristics.

Automotive-Grade with Extended Specifications:

• SZBZX84C2V4ET1G and SZBZX84C2V4LT1G (onsemi): Both feature AEC-Q101 qualification and automotive-grade designation. 2.4 V nominal, ±8% tolerance, 225 mW power, 100 Ohms impedance, SOT-23-3 package, RoHS3 compliant, extended temperature range to -65°C.

Frequently Asked Questions (FAQ)

Q: Can BZX84C2V4-TP be replaced with a part rated at 250 mW instead of 350 mW?

A: Yes, if the application circuit design does not require the full 350 mW dissipation capability. Parts such as BZX84C2V4LT1G, BZX84-C2V4,235, and BZX84-A2V4,235 all provide 2.4 V zener voltage with 250 mW rating. Circuit analysis must confirm that maximum power dissipation under worst-case conditions does not exceed 250 mW.

Q: What is the difference between SOT-23 and SOT-23-3 packages?

A: SOT-23 and SOT-23-3 are equivalent designations for the same three-terminal surface mount package (TO-236-3, SC-59). Both terms refer to the same physical form factor and pin configuration. Parts specified as either SOT-23 or SOT-23-3 are mechanically and electrically interchangeable.

Q: Are NXP BZX84-A2V4 parts suitable replacements for the BZX84C2V4-TP?

A: BZX84-A2V4 parts are functionally compatible with superior voltage tolerance (±1% versus ±5%) and automotive-grade qualification (AEC-Q101). However, the maximum power rating is 250 mW versus 350 mW. These parts are suitable if circuit power dissipation does not exceed 250 mW and automotive-grade qualification is acceptable or required.

Q: What does impedance (Zzt) mean in zener diode specifications?

A: Impedance (Zzt) is the dynamic impedance of the zener diode at a specified test current. Lower impedance values indicate better voltage regulation and faster transient response. The BZX84C2V4-TP specifies 100 Ohms maximum. MMBZ5221 series parts specify 30 Ohms, providing superior regulation characteristics.

Q: Can MMBZ5221B-7-F replace BZX84C2V4-TP if reverse leakage current is 100 µA instead of 50 µA?

A: Yes. MMBZ5221B-7-F meets all critical electrical specifications: 2.4 V nominal, ±5% tolerance, 350 mW power rating, and SOT-23-3 package. The reverse leakage current of 100 µA @ 1 V is higher than the 50 µA specification but remains within acceptable operational limits for zener diode applications. Circuit design must account for this leakage current in bias calculations.

Q: Are onsemi SZBZX84C2V4 parts automotive-qualified?

A: Yes. SZBZX84C2V4ET1G and SZBZX84C2V4LT1G both carry AEC-Q101 qualification and automotive-grade designation. These parts are suitable for automotive applications requiring extended temperature range (-65°C to 150°C) and automotive reliability standards.

Q: What is the impact of ±8% tolerance versus ±5% tolerance on circuit design?

A: Tolerance specification defines the allowable variation of zener voltage from the nominal 2.4 V value. ±5% tolerance allows variation from 2.28 V to 2.52 V. ±8% tolerance allows variation from 2.208 V to 2.592 V. Circuit designs must accommodate the full tolerance range. Applications requiring tighter voltage regulation should specify ±5% or ±1% tolerance parts.

Q: Is RoHS3 compliance required for all substitute parts?

A: RoHS3 compliance is required for the BZX84C2V4-TP. Among substitute parts, BZX84C2V4-7-F, BZX84C2V4LT1G, MMBZ5221B-7-F, MMBZ5221BLT1G, SZBZX84C2V4ET1G, and SZBZX84C2V4LT1G are all RoHS3 compliant. NXP parts (BZX84-A2V4 and BZX84-C2V4 series) do not specify RoHS3 status in provided data. Compliance verification with the supplier is required before selection for RoHS3-regulated applications.