BZX384-B68F Equivalent & Substitute Parts

Part Overview

The BZX384-B68F is a Zener diode manufactured by Nexperia USA Inc., rated at 68 V nominal with 300 mW maximum power dissipation in a surface mount SOD-323 package. This component is classified as an Active product and is RoHS3 compliant. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage circuits. Substitute parts may be required due to inventory availability, supply chain constraints, or design revision requirements while maintaining identical electrical and mechanical performance.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	68	V
Tolerance	±2%	%
Power - Max	300	mW
Impedance (Max)	240	Ohms
Current - Reverse Leakage @ Vr	50	nA @ 47.6 V
Voltage - Forward (Vf) (Max) @ If	1.1	V @ 100 mA
Operating Temperature Range	-65 to 150	°C
Package / Case	SC-76, SOD-323
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BZX384-B68F are determined by equivalence across the following critical parameters:

Zener Voltage (Nom): 68 V
Tolerance: ±2%
Maximum Power Dissipation: 300 mW
Maximum Impedance: 240 Ohms
Reverse Leakage Current: 50 nA @ 47.6 V
Forward Voltage: 1.1 V @ 100 mA
Operating Temperature Range: -65°C to 150°C
Package Type: SOD-323 (SC-76)
Mounting Configuration: Surface Mount
Compliance Standards: RoHS3, REACH Unaffected

All substitute parts listed maintain identical electrical specifications and mechanical compatibility with the primary part number BZX384-B68F. Substitution is valid when all parameters match within the specified tolerances and packaging requirements.

Parameter Comparison

Parameter	BZX384-B68F	BZX384-B68Z	BZX384-B68,115
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.
Category	Diodes, Zener	Diodes, Zener	Diodes, Zener
Series	BZX384	BZX384	BZX384
Voltage - Zener (Nom)	68 V	68 V	68 V
Tolerance	±2%	±2%	±2%
Power - Max	300 mW	300 mW	300 mW
Impedance (Max)	240 Ohms	240 Ohms	240 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 47.6 V	50 nA @ 47.6 V	50 nA @ 47.6 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 100 mA	1.1 V @ 100 mA	1.1 V @ 100 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Package / Case	SC-76, SOD-323	SC-76, SOD-323	SC-76, SOD-323
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Supplier Device Package	SOD-323	SOD-323	SOD-323
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three part numbers—BZX384-B68F, BZX384-B68Z, and BZX384-B68,115—are functionally equivalent and interchangeable for applications requiring a 68 V Zener diode with 300 mW power rating in SOD-323 surface mount packaging.

Compliance Considerations:

All substitute parts maintain identical RoHS3 compliance status and REACH unaffected classification. Moisture sensitivity level remains constant at MSL 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Product Status:

All parts are classified as Active products from Nexperia USA Inc., ensuring continued availability and manufacturer support.

Selection Basis:

Component selection among these equivalents should be based on inventory availability, lead time requirements, and supply chain logistics. No electrical or mechanical performance differentiation exists between the three part numbers.

Frequently Asked Questions (FAQ)

Q: Are BZX384-B68Z and BZX384-B68,115 direct replacements for BZX384-B68F?

A: Yes. All three part numbers are electrically and mechanically identical. They share the same 68 V nominal Zener voltage, ±2% tolerance, 300 mW power rating, SOD-323 package, and operating temperature range. Direct substitution is valid without circuit modification.

Q: What determines whether a part can substitute for BZX384-B68F?

A: Substitution is valid when the following parameters match: Zener voltage (68 V), tolerance (±2%), maximum power (300 mW), impedance (240 Ohms max), reverse leakage current (50 nA @ 47.6 V), forward voltage (1.1 V @ 100 mA), operating temperature range (-65°C to 150°C), and package type (SOD-323 surface mount).

Q: Do these parts require different PCB footprints?

A: No. All three parts use the SOD-323 (SC-76) package, which specifies identical physical dimensions and pin configuration. PCB footprints are interchangeable.

Q: Are there any compliance differences between the substitute parts?

A: No. All parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity level.

Q: Can I use BZX384-B68Z in a design originally specified for BZX384-B68F?

A: Yes. The parts are parametrically equivalent across all electrical and mechanical specifications. No design changes are required.

Q: What is the difference between the part number suffixes (F, Z, ,115)?

A: The suffixes represent different packaging or tape reel configurations from the manufacturer. The electrical and mechanical specifications remain identical across all variants.

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