BZX84W-C15F Equivalent & Substitute Parts

Part Overview

The BZX84W-C15F is an active Zener diode manufactured by Nexperia USA Inc., designed for voltage regulation and protection applications in surface mount configurations. This 15 V, 275 mW Zener diode operates in the SOT-323 package and is ROHS3 compliant with unlimited moisture sensitivity rating. Substitute parts are identified to address inventory availability, tolerance requirements, and packaging format preferences while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	15	V
Tolerance	±5%	—
Power - Maximum	275	mW
Impedance (Maximum)	30	Ohms
Current - Reverse Leakage @ Vr	50	nA @ 10.5 V
Voltage - Forward (Maximum) @ If	900	mV @ 10 mA
Operating Temperature	150	°C (TJ)
Package / Case	SC-70, SOT-323	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BZX84W-C15F is determined by the following critical parameters: nominal Zener voltage (15 V), maximum power dissipation (275 mW), package type (SOT-323), mounting configuration (surface mount), and compliance certifications (ROHS3). All substitute parts maintain identical electrical performance in these core specifications.

Substitute parts are grouped into two tolerance categories:

Tolerance ±5% Group: Parts with identical tolerance specification to the main part, suitable for applications where ±5% voltage regulation is acceptable.

Tolerance ±2% Group: Parts with tighter tolerance specification, suitable for applications requiring improved voltage accuracy.

All substitute parts share the same series designation (BZX84W), impedance rating (30 Ohms maximum), reverse leakage current (50 nA @ 10.5 V), forward voltage (900 mV @ 10 mA), operating temperature (150°C), and compliance status (ROHS3, REACH Unaffected, MSL 1).

Parameter Comparison

Part Number	Manufacturer	Voltage - Zener (Nom)	Tolerance	Power - Max	Impedance (Max)	Current - Reverse Leakage @ Vr	Voltage - Forward (Max) @ If	Operating Temperature	Package / Case	Inventory (Pcs)
BZX84W-C15F	Nexperia USA Inc.	15 V	±5%	275 mW	30 Ohms	50 nA @ 10.5 V	900 mV @ 10 mA	150°C (TJ)	SC-70, SOT-323	2953
BZX84W-B15F	Nexperia USA Inc.	15 V	±2%	275 mW	30 Ohms	50 nA @ 10.5 V	900 mV @ 10 mA	150°C (TJ)	SC-70, SOT-323	2697
BZX84W-B15X	Nexperia USA Inc.	15 V	±2%	275 mW	30 Ohms	50 nA @ 10.5 V	900 mV @ 10 mA	150°C (TJ)	SC-70, SOT-323	6940
BZX84W-C15X	Nexperia USA Inc.	15 V	±5%	275 mW	30 Ohms	50 nA @ 10.5 V	900 mV @ 10 mA	150°C (TJ)	SC-70, SOT-323	3744

Engineering Selection Recommendations

All substitute parts are active products manufactured by Nexperia USA Inc. with ROHS3 compliance and REACH unaffected status. Selection between substitute parts is based on tolerance requirements and packaging format:

For ±5% tolerance applications: BZX84W-C15F (main part, 2953 pcs available) and BZX84W-C15X (3744 pcs available) are electrically equivalent. The difference between these parts is packaging format: BZX84W-C15F is supplied in Tape & Reel format, while BZX84W-C15X is also supplied in Tape & Reel format. Both maintain identical electrical specifications.

For ±2% tolerance applications: BZX84W-B15F (2697 pcs available) and BZX84W-B15X (6940 pcs available) provide tighter voltage tolerance. BZX84W-B15X offers the highest inventory availability at 6940 pieces.

All parts operate at 150°C maximum junction temperature, dissipate 275 mW maximum power, and are housed in SOT-323 surface mount packages suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can BZX84W-B15F replace BZX84W-C15F in my circuit?

A: Yes. BZX84W-B15F is electrically compatible with BZX84W-C15F. Both maintain 15 V nominal Zener voltage, 275 mW power dissipation, and SOT-323 package specifications. The primary difference is tolerance: BZX84W-B15F provides ±2% tolerance compared to ±5% for BZX84W-C15F. This substitution is suitable for applications where improved voltage accuracy is beneficial or required.

Q: What is the difference between BZX84W-C15F and BZX84W-C15X?

A: Both parts are identical in electrical specifications: 15 V nominal Zener voltage, ±5% tolerance, 275 mW power dissipation, and SOT-323 package. Both are supplied in Tape & Reel packaging. The parts are direct equivalents with no functional differences.

Q: Can I use BZX84W-B15X instead of BZX84W-C15F?

A: Yes. BZX84W-B15X is electrically compatible with BZX84W-C15F. Both operate at 15 V nominal Zener voltage, 275 mW power dissipation, and use SOT-323 surface mount packages. BZX84W-B15X offers ±2% tolerance versus ±5% for BZX84W-C15F, and has higher inventory availability (6940 pcs).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed—BZX84W-C15F, BZX84W-B15F, BZX84W-B15X, and BZX84W-C15X—are ROHS3 compliant with REACH unaffected status and MSL 1 (unlimited) moisture sensitivity rating.

Q: What packaging formats are available?

A: All substitute parts are supplied in Tape & Reel (TR) packaging format suitable for automated surface mount assembly processes. The SOT-323 package is standard across all parts.

Q: Which substitute part has the best inventory availability?

A: BZX84W-B15X has the highest inventory availability at 6940 pieces. This part provides ±2% tolerance with 15 V nominal Zener voltage and 275 mW power dissipation in SOT-323 package.

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