BZX84C16 Zener Diode Equivalent & Substitute Parts

Part Overview

The BZX84C16 is a 16 V, 300 mW surface mount zener diode manufactured by Taiwan Semiconductor Corporation in SOT-23 packaging. This small signal zener diode is designed for voltage regulation and protection applications in electronic circuits. The part is currently active in production with 50,400 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility to support procurement flexibility, inventory management, and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	16	V
Power - Max	300	mW
Tolerance	±5.63%	%
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 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BZX84C16 is determined by the following critical parameters:

Electrical Specifications:

Zener voltage: 16 V nominal
Maximum power dissipation: 300 mW
Reverse leakage current: 100 nA @ 11.2 V
Forward voltage: 900 mV @ 10 mA maximum
Impedance: 40 Ohms maximum
Operating temperature range: -65°C to 150°C

Mechanical Specifications:

Package type: SOT-23-3 (TO-236-3, SC-59)
Mounting: Surface mount

Compliance Requirements:

RoHS3 compliance
REACH unaffected status

All identified substitute parts maintain identical electrical performance across these parameters. Variations in tolerance specification (±2% to ±5.63%) and packaging format (bulk versus tape and reel) do not affect functional equivalence for standard applications. Automotive-grade variants with AEC-Q101 qualification provide enhanced reliability for automotive and high-reliability applications.

Parameter Comparison

Parameter	BZX84C16	BZX84C16 RFG	BZX84B16Q-7-F	BZX84C16Q-13-F	BZX84C16Q-7-F
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
Voltage - Zener (Nom)	16 V	16 V	16 V	16 V	16 V
Power - Max	300 mW	300 mW	300 mW	300 mW	300 mW
Tolerance	±5.63%	±5%	±2%	±5.63%	±5.63%
Impedance (Max)	40 Ohms	40 Ohms	40 Ohms	40 Ohms	40 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 11.2 V	100 nA @ 11.2 V	100 nA @ 11.2 V	100 nA @ 11.2 V	100 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	900 mV @ 10 mA
Operating Temperature	-65 to 150°C (TJ)	-65 to 150°C (TJ)	-65 to 150°C (TJ)	-65 to 150°C (TJ)	-65 to 150°C (TJ)
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	—	—	Yes (AEC-Q101)	Yes (AEC-Q101)	Yes (AEC-Q101)
Inventory (Pcs)	50,400	7,135	2,000	744	90,200

Engineering Selection Recommendations

Primary Selection (BZX84C16Q-7-F): The BZX84C16Q-7-F from Diodes Incorporated is the recommended substitute for general applications. This part maintains full electrical equivalence with the original BZX84C16, offers automotive-grade qualification (AEC-Q101), and provides the highest inventory availability at 90,200 units. The part is supplied in tape and reel format suitable for automated assembly processes.

High-Tolerance Applications (BZX84B16Q-7-F): The BZX84B16Q-7-F is specified for applications requiring tighter tolerance control. With ±2% tolerance compared to ±5.63% of the base part, this variant from Diodes Incorporated provides enhanced voltage regulation precision. AEC-Q101 automotive qualification is included. Inventory availability is 2,000 units.

Taiwan Semiconductor Alternative (BZX84C16 RFG): The BZX84C16 RFG from Taiwan Semiconductor Corporation maintains the same manufacturer as the original part while offering improved tolerance (±5% versus ±5.63%). This variant is supplied in tape and reel format with 7,135 units in stock. Moisture sensitivity level is rated as 1 (unlimited).

Secondary Selection (BZX84C16Q-13-F): The BZX84C16Q-13-F from Diodes Incorporated provides full electrical equivalence with AEC-Q101 automotive qualification. This variant is available with 744 units in stock and is suitable for applications where automotive-grade reliability is required.

All substitute parts are RoHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements equivalent to the original BZX84C16.

Frequently Asked Questions (FAQ)

Q: Can BZX84C16Q-7-F be used as a direct replacement for BZX84C16?

A: Yes. The BZX84C16Q-7-F maintains identical electrical specifications including 16 V nominal zener voltage, 300 mW maximum power dissipation, 40 Ohms maximum impedance, and -65°C to 150°C operating temperature range. Both parts use SOT-23-3 packaging. The substitute part includes automotive-grade qualification (AEC-Q101), which provides enhanced reliability without affecting standard application compatibility.

Q: What is the difference between ±2% and ±5.63% tolerance specifications?

A: Tolerance specifies the allowable deviation of the zener voltage from the nominal 16 V value. The BZX84B16Q-7-F with ±2% tolerance maintains zener voltage between 15.68 V and 16.32 V. The BZX84C16 and BZX84C16Q-7-F with ±5.63% tolerance maintain zener voltage between 15.10 V and 16.90 V. Tighter tolerance is required for precision voltage regulation applications; standard tolerance is acceptable for general protection and regulation circuits.

Q: Are tape and reel packaged parts functionally equivalent to bulk packaged parts?

A: Yes. Tape and reel (TR) packaging and bulk packaging contain identical components. The packaging format affects handling, storage, and assembly process compatibility only. Tape and reel format is standard for automated surface mount assembly; bulk format is used for manual assembly or reel-fed processes. Electrical and mechanical specifications remain unchanged.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is an automotive electronics qualification standard. Parts meeting this qualification have undergone enhanced reliability testing and are approved for automotive applications. BZX84B16Q-7-F, BZX84C16Q-13-F, and BZX84C16Q-7-F carry this qualification. Non-automotive variants (BZX84C16, BZX84C16 RFG) are suitable for industrial and consumer applications.

Q: Can I substitute BZX84C16 with BZX84C16 RFG?

A: Yes. The BZX84C16 RFG is a direct substitute from the same manufacturer (Taiwan Semiconductor Corporation) with improved tolerance specification (±5% versus ±5.63%). Both parts share identical electrical performance, SOT-23-3 packaging, and RoHS3 compliance. The primary difference is packaging format (tape and reel versus bulk) and inventory availability.

Q: Which substitute part should I select for maximum inventory availability?

A: The BZX84C16Q-7-F offers the highest inventory level at 90,200 units in stock. This part is supplied by Diodes Incorporated in tape and reel format with automotive-grade AEC-Q101 qualification and full electrical equivalence to the original BZX84C16.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts (BZX84C16 RFG, BZX84B16Q-7-F, BZX84C16Q-13-F, BZX84C16Q-7-F) are RoHS3 compliant and REACH unaffected, matching the environmental compliance status of the original BZX84C16.

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