BZT52C3V0LP-TP Equivalent & Substitute Parts

Part Overview

The BZT52C3V0LP-TP is a Zener diode manufactured by Micro Commercial Co, rated at 3 V nominal with 100 mW maximum power dissipation in a surface mount SOD-882 package. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates across a temperature range of -65°C to 150°C and complies with ROHS3 standards.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	3	V
Tolerance	±6.67%	%
Power - Max	100	mW
Impedance (Max)	95	Ohms
Current - Reverse Leakage @ Vr	10	µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOD-882	—

Substitute Part Grouping Explanation

Substitution of the BZT52C3V0LP-TP is determined by the following critical parameters:

Electrical Compatibility Criteria:

Zener voltage (Vz) must equal 3 V nominal
Reverse leakage current must not exceed 10 µA @ 1 V
Forward voltage drop must not exceed 900 mV @ 10 mA
Impedance (Zzt) must not exceed 95 Ohms
Operating temperature range must encompass -65°C to 150°C

Mechanical Compatibility Criteria:

Surface mount mounting type
SOD-882 package / case designation

Regulatory Compliance:

ROHS3 compliance required

The BZX884-C3V0,315 manufactured by NXP USA Inc. satisfies all electrical and mechanical compatibility requirements. This substitute provides identical nominal Zener voltage, equivalent impedance, matching reverse leakage characteristics, and identical forward voltage specifications. The substitute operates within the required temperature range and maintains SOD-882 package compatibility. The substitute is classified as active product status, ensuring ongoing availability and supply chain continuity.

Parameter Comparison

Parameter	BZT52C3V0LP-TP (Main)	BZX884-C3V0,315 (Substitute)	Compatibility
Voltage - Zener (Nom)	3 V	3 V	Identical
Tolerance	±6.67%	±5%	Substitute tighter
Power - Max	100 mW	250 mW	Substitute higher
Impedance (Max)	95 Ohms	95 Ohms	Identical
Current - Reverse Leakage @ Vr	10 µA @ 1 V	10 µA @ 1 V	Identical
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	Identical
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	SOD-882	SOD-882	Identical
Product Status	Obsolete	Active	Substitute active

Engineering Selection Recommendations

The BZX884-C3V0,315 is a direct functional equivalent for the obsolete BZT52C3V0LP-TP. Selection of this substitute is supported by the following factors:

Electrical Performance: All critical electrical parameters match or exceed the original specification. The substitute maintains identical Zener voltage, impedance, reverse leakage, and forward voltage characteristics. The substitute provides higher maximum power dissipation (250 mW versus 100 mW), which represents an enhancement for thermal margin in the application circuit.

Mechanical Compatibility: Both components utilize identical SOD-882 surface mount packaging, ensuring direct board-level compatibility without layout modification.

Regulatory Compliance: The substitute maintains ROHS3 compliance, satisfying environmental and regulatory requirements equivalent to the original part.

Supply Chain Status: The substitute is classified as active product status with substantial inventory availability (34,637 units), ensuring reliable procurement and long-term supply continuity compared to the obsolete original part.

Tolerance Improvement: The substitute provides tighter Zener voltage tolerance (±5% versus ±6.67%), which may improve circuit performance in applications requiring precise voltage regulation.

Frequently Asked Questions (FAQ)

Q: Can the BZX884-C3V0,315 be used as a direct replacement for the BZT52C3V0LP-TP without circuit modification?

A: Yes. Both components share identical electrical specifications for Zener voltage, impedance, reverse leakage, and forward voltage. Both utilize SOD-882 surface mount packaging. No circuit modification is required for substitution.

Q: What is the significance of the higher power rating (250 mW) in the substitute part?

A: The substitute provides 2.5 times higher maximum power dissipation. This does not affect circuit operation if the original design dissipates 100 mW or less. The higher rating provides additional thermal margin and may improve reliability in applications operating near the original power limit.

Q: Are there any tolerance differences between the main part and substitute?

A: The substitute provides tighter Zener voltage tolerance (±5% versus ±6.67%). This represents an improvement in voltage regulation accuracy and does not create compatibility issues.

Q: Why is the substitute part classified as active while the original is obsolete?

A: The BZT52C3V0LP-TP has been discontinued by Micro Commercial Co. The BZX884-C3V0,315 is an actively manufactured equivalent from NXP USA Inc., ensuring ongoing availability and supply chain continuity.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both components comply with ROHS3 standards. Both operate across the identical temperature range of -65°C to 150°C.

Q: What is the difference between the SOD-882 package designation and the DFN1006-2 supplier device package notation?

A: SOD-882 is the industry-standard package classification. DFN1006-2 is the supplier's internal device package designation for the same physical form factor. Both designations refer to the same surface mount package with identical pin configuration and board footprint.

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