BZX84C16W-7 Equivalent & Substitute Parts

Part Overview

The BZX84C16W-7 is a Zener diode rated at 16 V nominal voltage with 200 mW maximum power dissipation in a surface mount SOT-323 package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design requirements and production continuity. The part is RoHS non-compliant and operates across a temperature range of -65°C to 125°C.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	16 V
Power - Max	200 mW
Tolerance	±6%
Impedance (Max)	40 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 11.2 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA
Operating Temperature	-65°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	SC-70, SOT-323

Substitute Part Grouping Explanation

Substitution of the BZX84C16W-7 is determined by the following critical parameters:

Primary Substitution Criteria:

Zener voltage: 16 V nominal
Maximum power dissipation: 200 mW or greater
Impedance (Max): 40 Ohms
Reverse leakage current: 100 nA @ 11.2 V or lower
Forward voltage: 900 mV @ 10 mA or lower
Operating temperature range: -65°C to 125°C minimum
Surface mount configuration

Substitute Classification:

Parametric Equivalent (Same Package Family): BZX84C16W-7-F maintains identical electrical specifications with improved tolerance (±5.56% versus ±6%) and is available in active product status with RoHS3 compliance.

Manufacturer Recommended Alternatives (Different Package): BZX84-C16,215 and BZX84-C16,235 provide higher power dissipation (250 mW versus 200 mW), improved temperature range (-65°C to 150°C), automotive qualification (AEC-Q101), and RoHS3 compliance. These parts use the TO-236AB package (SC-59, SOT-23-3) instead of SOT-323, requiring PCB layout modification.

Parameter Comparison

Parameter	BZX84C16W-7	BZX84C16W-7-F	BZX84-C16,215	BZX84-C16,235
Manufacturer	Diodes Incorporated	Diodes Incorporated	Nexperia USA Inc.	Nexperia USA Inc.
Voltage - Zener (Nom)	16 V	16 V	16 V	16 V
Power - Max	200 mW	200 mW	250 mW	250 mW
Tolerance	±6%	±5.56%	±5%	±5%
Impedance (Max)	40 Ohms	40 Ohms	40 Ohms	40 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 11.2 V	100 nA @ 11.2 V	50 nA @ 11.2 V	50 nA @ 11.2 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 150°C	-65°C ~ 150°C
Package / Case	SC-70, SOT-323	SC-70, SOT-323	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Product Status	Discontinued	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q101 Qualification	Not specified	Not specified	Yes	Yes

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement:

BZX84C16W-7-F is the primary equivalent substitute. This part maintains identical package geometry (SOT-323), electrical specifications, and thermal characteristics. The improved tolerance (±5.56%) provides tighter voltage regulation. The part is in active production status with RoHS3 compliance, ensuring long-term availability and regulatory alignment.

For Enhanced Performance and Compliance:

BZX84-C16,215 and BZX84-C16,235 are manufacturer-recommended alternatives offering increased power dissipation margin (250 mW versus 200 mW), extended operating temperature range (-65°C to 150°C), and automotive-grade qualification (AEC-Q101). These parts require PCB redesign due to package change from SOT-323 to TO-236AB. Both parts are in active production with full RoHS3 compliance.

Selection between BZX84-C16,215 (Tape & Reel) and BZX84-C16,235 (Cut Tape & Digi-Reel) depends on procurement and assembly requirements; electrical specifications are identical.

Frequently Asked Questions (FAQ)

Q: Can BZX84C16W-7-F be used as a direct replacement for BZX84C16W-7?

A: Yes. BZX84C16W-7-F is a parametric equivalent with identical package (SOT-323), zener voltage (16 V), maximum power (200 mW), impedance (40 Ohms), and operating temperature range (-65°C to 125°C). The improved tolerance (±5.56% versus ±6%) provides enhanced voltage regulation accuracy.

Q: What are the key differences between BZX84C16W-7-F and the Nexperia alternatives?

A: BZX84C16W-7-F maintains the SOT-323 package and 200 mW power rating. The Nexperia parts (BZX84-C16,215 and BZX84-C16,235) use the larger TO-236AB package with 250 mW power dissipation and extended temperature range to 150°C. Package change requires PCB layout modification.

Q: Are the Nexperia parts suitable for automotive applications?

A: Yes. BZX84-C16,215 and BZX84-C16,235 carry AEC-Q101 automotive qualification and are rated for automotive-grade applications. The original BZX84C16W-7 does not specify automotive qualification.

Q: What is the difference between BZX84-C16,215 and BZX84-C16,235?

A: Both parts are electrically identical with the same specifications. The difference is packaging format: BZX84-C16,215 is supplied in Tape & Reel (TR), while BZX84-C16,235 is supplied in Cut Tape (CT) & Digi-Reel. Selection depends on assembly process requirements.

Q: Does the package change from SOT-323 to TO-236AB affect circuit performance?

A: The electrical performance is equivalent. However, the larger TO-236AB package has different footprint dimensions and pin spacing, requiring PCB redesign. Thermal characteristics may differ slightly due to package geometry variations.

Q: Are all substitute parts RoHS compliant?

A: BZX84C16W-7-F, BZX84-C16,215, and BZX84-C16,235 are all RoHS3 compliant. The original BZX84C16W-7 is RoHS non-compliant.

Q: What is the reverse leakage current difference between the parts?

A: BZX84C16W-7 and BZX84C16W-7-F specify 100 nA @ 11.2 V. BZX84-C16,215 and BZX84-C16,235 specify 50 nA @ 11.2 V, indicating lower leakage current and improved performance.

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