BZX84C5V6 Equivalent & Substitute Parts

Part Overview

The BZX84C5V6 is a small-signal zener diode manufactured by Taiwan Semiconductor Corporation, rated for 5.6 V nominal zener voltage with 300 mW maximum power dissipation. The device is housed in a surface-mount SOT-23 package and operates across the temperature range of -65°C to 150°C. This part is classified as Active product status and is RoHS3 compliant.

Equivalent and substitute parts are identified when designs require alternative sourcing, higher tolerance specifications, automotive-grade qualification, or different packaging configurations while maintaining electrical and mechanical compatibility with the original BZX84C5V6 specification.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	5.6	V
Power - Max	300	mW
Impedance (Max)	40	Ohms
Current - Reverse Leakage @ Vr	1	µA @ 2 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature Range	-65 to 150	°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3

Substitute Part Grouping Explanation

Substitution of the BZX84C5V6 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

Voltage - Zener (Nom): 5.6 V
Power - Max: 300 mW
Impedance (Max): 40 Ohms
Current - Reverse Leakage @ Vr: 1 µA @ 2 V
Voltage - Forward (Vf) (Max) @ If: 900 mV @ 10 mA
Operating Temperature Range: -65°C to 150°C

Mechanical Parameters (Must Match):

Mounting Type: Surface Mount
Package / Case: TO-236-3, SC-59, SOT-23-3

Tolerance Specification: Substitute parts are grouped by tolerance rating. The BZX84C5V6 specifies ±7.14% tolerance. Substitute parts with tighter tolerance specifications (±5% or ±2%) are electrically compatible and provide enhanced precision for applications requiring stricter voltage regulation.

Automotive Qualification: Substitute parts qualified to AEC-Q101 automotive standard are functionally equivalent and suitable for automotive and high-reliability applications.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Vf (Max) @ If	Temp Range	Grade	Packaging
BZX84C5V6	Taiwan Semiconductor Corporation	5.6 V	±7.14%	300 mW	40 Ω	900 mV @ 10 mA	-65 to 150°C	Standard	SOT-23
BZX84C5V6 RFG	Taiwan Semiconductor Corporation	5.6 V	±5%	300 mW	40 Ω	900 mV @ 10 mA	-65 to 150°C	Standard	SOT-23 (Tape & Reel)
BZX84C5V6Q-13-F	Diodes Incorporated	5.6 V	±7.14%	300 mW	40 Ω	900 mV @ 10 mA	-65 to 150°C	Automotive	SOT-23-3 (Tape & Reel)
BZX84C5V6Q-7-F	Diodes Incorporated	5.6 V	±7.14%	300 mW	40 Ω	900 mV @ 10 mA	-65 to 150°C	Automotive	SOT-23-3 (Tape & Reel)
BZX84B5V6Q-13-F	Diodes Incorporated	5.6 V	±2%	300 mW	40 Ω	900 mV @ 10 mA	-65 to 150°C	Automotive	SOT-23-3 (Tape & Reel)
BZX84B5V6Q-7-F	Diodes Incorporated	5.6 V	±2%	300 mW	40 Ω	900 mV @ 10 mA	-65 to 150°C	Automotive	SOT-23-3 (Tape & Reel)

Engineering Selection Recommendations

Standard Industrial Applications: The BZX84C5V6 from Taiwan Semiconductor Corporation and BZX84C5V6 RFG are suitable for general-purpose applications. The RFG variant offers improved tolerance (±5%) and is supplied in Tape & Reel packaging for automated assembly processes.

Automotive and High-Reliability Applications: The BZX84C5V6Q-13-F and BZX84C5V6Q-7-F from Diodes Incorporated are qualified to AEC-Q101 automotive standard and are suitable for automotive, industrial control, and mission-critical applications. Both variants maintain ±7.14% tolerance matching the original specification.

Precision Voltage Regulation: The BZX84B5V6Q-13-F and BZX84B5V6Q-7-F from Diodes Incorporated provide ±2% tolerance specification, delivering tighter voltage regulation performance. These parts are automotive-grade and AEC-Q101 qualified, suitable for applications requiring enhanced precision.

Packaging Considerations: All substitute parts are available in Tape & Reel packaging, which is standard for high-volume surface-mount assembly. The original BZX84C5V6 is available in standard packaging. Tape & Reel variants are functionally identical and differ only in packaging format for automated handling.

Compliance and Regulatory: All listed parts maintain RoHS3 compliance and REACH Unaffected status, consistent with the original BZX84C5V6 specification.

Frequently Asked Questions (FAQ)

Q: Can BZX84C5V6Q-13-F replace BZX84C5V6 in my circuit?

A: Yes. The BZX84C5V6Q-13-F maintains identical electrical parameters: 5.6 V nominal zener voltage, 300 mW power rating, 40 Ohms maximum impedance, and -65°C to 150°C operating temperature range. The primary differences are manufacturer (Diodes Incorporated versus Taiwan Semiconductor Corporation), automotive-grade qualification (AEC-Q101), and packaging format (Tape & Reel). Electrical and mechanical compatibility is confirmed.

Q: What is the difference between BZX84C5V6 RFG and BZX84C5V6?

A: Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications except for tolerance. The BZX84C5V6 RFG specifies ±5% tolerance compared to ±7.14% for the standard BZX84C5V6. The RFG variant is supplied in Tape & Reel packaging. Both are electrically interchangeable; the RFG variant provides tighter voltage regulation.

Q: Are BZX84B5V6Q-13-F and BZX84B5V6Q-7-F interchangeable?

A: Yes. Both parts are manufactured by Diodes Incorporated with identical electrical specifications: 5.6 V nominal zener voltage, ±2% tolerance, 300 mW power rating, and AEC-Q101 automotive qualification. The difference is in tape reel configuration (13-F versus 7-F designations). They are electrically and mechanically equivalent.

Q: Can I use a ±2% tolerance part (BZX84B5V6Q) where a ±7.14% part (BZX84C5V6) is specified?

A: Yes. The ±2% tolerance specification is a tighter constraint than ±7.14%, meaning the BZX84B5V6Q variants will meet the original specification requirement. The tighter tolerance provides enhanced precision and is a direct upgrade for voltage regulation performance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance and REACH Unaffected status, consistent with the original BZX84C5V6 specification.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is the automotive industry standard qualification for discrete semiconductors. Parts bearing this qualification have undergone rigorous testing for reliability, temperature cycling, and performance consistency. AEC-Q101 qualified parts are suitable for automotive applications and high-reliability industrial environments.

Q: Can I substitute a Tape & Reel packaged part for a standard packaged part?

A: Yes. Tape & Reel packaging is a delivery format for automated assembly processes. The electrical and mechanical specifications of the component remain identical. Tape & Reel variants are suitable for high-volume manufacturing and are directly compatible with pick-and-place assembly equipment.

Q: What is the significance of the impedance (Zzt) parameter?

A: Impedance (Zzt) at maximum rating specifies the dynamic impedance of the zener diode in its regulation region. The 40 Ohms maximum specification is consistent across all listed parts, ensuring equivalent voltage regulation characteristics and transient response performance.

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