BZX8450-C3V3VL Equivalent & Substitute Parts

Part Overview

The BZX8450-C3V3VL is a Zener diode manufactured by Nexperia USA Inc., rated at 3.3 V nominal with 250 mW maximum power dissipation. This surface mount component operates in the TO-236AB package and is classified as Active product status. The device is designed for voltage regulation and protection applications requiring precise Zener characteristics at 3.3 V. Substitute parts are identified when identical electrical specifications, mechanical compatibility, and compliance certifications are maintained across alternative part numbers from the same manufacturer.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	3.3	V
Tolerance	±5	%
Power - Max	250	mW
Impedance (Max)	100	Ohms
Current - Reverse Leakage @ Vr	7.5	µA @ 1.5 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature	150	°C (TJ)
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BZX8450-C3V3VL with the BZX8450-C3V3R is valid based on the following criteria:

Both parts share identical electrical specifications across all critical parameters: 3.3 V nominal Zener voltage with ±5% tolerance, 250 mW maximum power rating, 100 Ohms maximum impedance, 7.5 µA reverse leakage current at 1.5 V, and 900 mV maximum forward voltage at 10 mA. Both components operate at the same maximum junction temperature of 150°C and are packaged in the TO-236AB surface mount configuration. Compliance certifications are equivalent: both are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. The moisture sensitivity level is identical at MSL 1 (Unlimited). The substitution is based strictly on parametric equivalence and mechanical compatibility, with no functional or performance differentiation between the two part numbers.

Parameter Comparison

Parameter	BZX8450-C3V3VL	BZX8450-C3V3R	Match
Voltage - Zener (Nom)	3.3 V	3.3 V	✓
Tolerance	±5%	±5%	✓
Power - Max	250 mW	250 mW	✓
Impedance (Max)	100 Ohms	100 Ohms	✓
Current - Reverse Leakage @ Vr	7.5 µA @ 1.5 V	7.5 µA @ 1.5 V	✓
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	✓
Operating Temperature	150°C (TJ)	150°C (TJ)	✓
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	✓

Engineering Selection Recommendations

Both the BZX8450-C3V3VL and BZX8450-C3V3R are Active product status components manufactured by Nexperia USA Inc. and are suitable for direct substitution in applications requiring 3.3 V Zener regulation. Selection between these parts may be based on inventory availability and lead time considerations. The BZX8450-C3V3VL currently maintains higher inventory levels at 10,582 pieces, while the BZX8450-C3V3R has 3,829 pieces available. Both parts meet ROHS3 compliance and REACH requirements, ensuring regulatory conformance for industrial and commercial applications. The TO-236AB package designation confirms mechanical compatibility with existing PCB layouts and assembly processes. No performance differentiation exists between the two part numbers based on provided specifications.

Frequently Asked Questions (FAQ)

Q: Can BZX8450-C3V3R be used as a direct replacement for BZX8450-C3V3VL?

A: Yes. Both parts are parametrically equivalent across all electrical specifications, including Zener voltage, power rating, impedance, leakage current, and forward voltage characteristics. Package and mounting type are identical, confirming mechanical compatibility.

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

A: No. Both parts carry identical compliance certifications: ROHS3 compliant, REACH unaffected, and EAR99 classification. Moisture sensitivity level is MSL 1 (Unlimited) for both components.

Q: What determines the substitution validity between BZX8450-C3V3VL and BZX8450-C3V3R?

A: Substitution is valid based on matching electrical parameters (3.3 V nominal Zener voltage, ±5% tolerance, 250 mW power, 100 Ohms impedance, 7.5 µA reverse leakage, 900 mV forward voltage), identical operating temperature range (150°C junction temperature), and identical package configuration (TO-236AB surface mount).

Q: Are there any application limitations when substituting between these part numbers?

A: No application limitations exist. Both parts are rated for identical voltage regulation and protection applications within the specified 3.3 V Zener range and 250 mW power dissipation envelope.

Q: How should PCB assembly processes be adjusted when switching between these parts?

A: No process adjustments are required. Both parts use the same TO-236AB surface mount package, confirming compatibility with existing reflow soldering profiles, pick-and-place equipment settings, and PCB layout designs.

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