BZX84W-C6V8F Equivalent & Substitute Parts

Part Overview

The BZX84W-C6V8F is a surface mount Zener diode manufactured by Nexperia USA Inc., rated for 6.8 V nominal Zener voltage with 275 mW maximum power dissipation in an SOT-323 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 maintained within the specified parameter tolerances for this Zener diode category.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	6.8	V
Tolerance	±5%	—
Power - Max	275	mW
Impedance (Max)	15	Ohms
Current - Reverse Leakage @ Vr	2	µA @ 4 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature	150	°C (TJ)
Package / Case	SC-70, SOT-323	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitute parts for the BZX84W-C6V8F are identified based on the following criteria:

Critical Parameters for Substitution:

Nominal Zener voltage: 6.8 V (exact match required)
Maximum power dissipation: 275 mW (exact match required)
Package type: SOT-323 (exact match required)
Mounting type: Surface Mount (exact match required)
Impedance (Max): 15 Ohms (exact match required)
Reverse leakage current: 2 µA @ 4 V (exact match required)
Forward voltage: 900 mV @ 10 mA (exact match required)
Operating temperature: 150°C (exact match required)

Variable Parameter:

Tolerance: The BZX84W-C6V8F operates at ±5% tolerance. Substitute parts with ±2% tolerance (tighter specification) are functionally compatible as they meet or exceed the original specification.

All substitute parts are manufactured by Nexperia USA Inc., maintain Active product status, and comply with ROHS3 and REACH requirements.

Parameter Comparison

Parameter	BZX84W-C6V8F	BZX84W-B6V8F	BZX84W-B6V8X	BZX84W-C6V8X
Voltage - Zener (Nom)	6.8 V	6.8 V	6.8 V	6.8 V
Tolerance	±5%	±2%	±2%	±5%
Power - Max	275 mW	275 mW	275 mW	275 mW
Impedance (Max)	15 Ohms	15 Ohms	15 Ohms	15 Ohms
Current - Reverse Leakage @ Vr	2 µA @ 4 V	2 µA @ 4 V	2 µA @ 4 V	2 µA @ 4 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	150°C (TJ)	150°C (TJ)	150°C (TJ)	150°C (TJ)
Package / Case	SC-70, SOT-323	SC-70, SOT-323	SC-70, SOT-323	SC-70, SOT-323
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All substitute parts listed maintain electrical equivalence to the BZX84W-C6V8F within the specified parameter set. Selection among these alternatives is based on the following factors:

Tolerance Consideration: Parts designated with the "B" suffix (BZX84W-B6V8F, BZX84W-B6V8X) feature ±2% tolerance, providing tighter Zener voltage specification compared to the ±5% tolerance of the original part. These are suitable for applications requiring improved voltage regulation accuracy.

Packaging Designation: The "F" suffix indicates Tape & Reel packaging, while the "X" suffix also indicates Tape & Reel packaging. Both packaging types are equivalent for surface mount assembly processes.

Compliance and Status: All substitute parts maintain Active product status, ROHS3 compliance, and REACH unaffected classification, ensuring regulatory and environmental compliance equivalent to the original component.

Inventory Availability: Substitute part selection may be influenced by current stock levels. BZX84W-B6V8F maintains the highest inventory at 4361 pieces, followed by BZX84W-C6V8X at 1154 pieces and BZX84W-B6V8X at 1050 pieces.

Frequently Asked Questions (FAQ)

Q: Can BZX84W-B6V8F replace BZX84W-C6V8F directly?

A: Yes. The BZX84W-B6V8F is a direct substitute. Both parts share identical electrical specifications for Zener voltage (6.8 V), power rating (275 mW), impedance (15 Ohms), reverse leakage current (2 µA @ 4 V), forward voltage (900 mV @ 10 mA), and operating temperature (150°C). The difference is tolerance: BZX84W-B6V8F operates at ±2% versus ±5% for the original part, representing an improvement in voltage regulation precision.

Q: What is the difference between the "F" and "X" packaging designations?

A: Both "F" and "X" designations indicate Tape & Reel packaging suitable for automated surface mount assembly. These designations are functionally equivalent for PCB assembly applications.

Q: Are all substitute parts manufactured by the same company?

A: Yes. All substitute parts listed are manufactured by Nexperia USA Inc., the same manufacturer as the original BZX84W-C6V8F component.

Q: Do substitute parts maintain the same compliance certifications?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original component.

Q: Can a ±2% tolerance part be used in place of a ±5% tolerance part?

A: Yes. A tighter tolerance specification (±2%) is compatible with applications designed for a looser tolerance (±5%). The ±2% tolerance part will perform within the original design requirements while providing improved voltage regulation accuracy.

Q: Is the SOT-323 package identical across all listed parts?

A: Yes. All parts use the SC-70, SOT-323 surface mount package with identical mechanical and electrical interface characteristics.

Q: What is the maximum operating temperature for these Zener diodes?

A: The maximum junction temperature (TJ) is 150°C for all listed parts, including the original BZX84W-C6V8F and all substitute options.

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