BZX584C2V7-V-G-08 Equivalent & Substitute Parts

Part Overview

The BZX584C2V7-V-G-08 is a 2.7 V Zener diode rated for 200 mW power dissipation in a surface mount SOD-523 package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement. The part is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), suitable for applications requiring voltage regulation and transient protection in compact form factors.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	2.7 V
Tolerance	±5%
Power - Max	200 mW
Impedance (Max)	100 Ohms
Current - Reverse Leakage @ Vr	50 µA @ 1 V
Operating Temperature	-65°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	SC-79, SOD-523
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BZX584C2V7-V-G-08 is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage: 2.7 V nominal
Tolerance: ±5% or tighter
Package: SOD-523 or equivalent 0603/SOD-523F form factor
Mounting type: Surface mount
RoHS3 compliance
MSL rating: 1 (Unlimited)

Secondary Compatibility Factors:

Power rating: 200 mW or greater
Impedance: 100 Ohms or lower
Reverse leakage current: 50 µA @ 1 V or lower
Operating temperature range: -65°C to 150°C or equivalent coverage

Parts are grouped into two categories: direct equivalents (same package, same power rating) and functional substitutes (same electrical characteristics, alternative packages or higher power ratings).

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Impedance (Max)	Reverse Leakage @ Vr	Operating Temp	Package	Product Status
BZX584C2V7-V-G-08	Vishay	2.7 V	±5%	200 mW	100 Ω	50 µA @ 1 V	-65°C ~ 150°C	SOD-523	Obsolete
BZX584C2V7-G3-08	Vishay	2.7 V	±5%	200 mW	75 Ω	20 µA @ 1 V	-65°C ~ 150°C	SOD-523	Active
BZT52C2V7T-7	Diodes Incorporated	2.7 V	±7%	300 mW	100 Ω	20 µA @ 1 V	-65°C ~ 150°C	SOD-523	Active
BZT52C2V7T-TP	Micro Commercial Co	2.7 V	±5%	100 mW	100 Ω	20 µA @ 1 V	-65°C ~ 150°C	SOD-523	Active
CZRU52C2V7	Comchip Technology	2.7 V	±5%	150 mW	83 Ω	75 µA @ 1 V	-55°C ~ 125°C	0603/SOD-523F	Active
CZRUR52C2V7	Comchip Technology	2.7 V	±5%	150 mW	83 Ω	75 µA @ 1 V	-55°C ~ 125°C	0603/SOD-523F	Active

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

BZX584C2V7-G3-08 is the direct equivalent replacement. This part is manufactured by Vishay General Semiconductor - Diodes Division, the same manufacturer as the original component. It maintains identical zener voltage (2.7 V), tolerance (±5%), power rating (200 mW), and SOD-523 package. The part is currently in active production status with 1586 units in stock. Electrical performance is superior with lower impedance (75 Ω vs. 100 Ω) and reduced reverse leakage current (20 µA vs. 50 µA @ 1 V). Operating temperature range is maintained at -65°C to 150°C. RoHS3 compliance and MSL 1 rating are preserved.

Alternative Substitutes (Higher Power Rating):

BZT52C2V7T-7 (Diodes Incorporated) provides increased power dissipation capability at 300 mW while maintaining the 2.7 V zener voltage and SOD-523 package. Tolerance is ±7% (wider than original ±5%). This part is suitable for applications requiring additional thermal margin. Operating temperature range matches the original specification.

Lower Power Alternative:

BZT52C2V7T-TP (Micro Commercial Co) is rated for 100 mW power dissipation. This part is suitable only for applications where the original 200 mW rating exceeds actual requirements. Zener voltage, tolerance (±5%), and operating temperature range are compatible with the original specification.

Package Alternative (0603/SOD-523F):

CZRU52C2V7 and CZRUR52C2V7 (Comchip Technology) are functionally equivalent with 2.7 V zener voltage and ±5% tolerance. These parts use a 0603/SOD-523F package form factor. Power rating is 150 mW, which is lower than the original 200 mW specification. Operating temperature range is reduced to -55°C to 125°C. These parts are suitable for applications where the reduced temperature range and power rating are acceptable and where 0603 package footprint compatibility is required.

All substitute parts maintain ROHS3 compliance and MSL 1 rating. Selection should be based on specific application requirements for power dissipation, operating temperature range, and package footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can BZX584C2V7-G3-08 be used as a direct replacement for BZX584C2V7-V-G-08?

A: Yes. BZX584C2V7-G3-08 is a direct equivalent. Both parts share identical zener voltage (2.7 V), tolerance (±5%), power rating (200 mW), and SOD-523 package. The substitute part is currently in active production, whereas the original is obsolete. Electrical performance of the substitute is equal or superior.

Q: What is the difference between BZT52C2V7T-7 and the original BZX584C2V7-V-G-08?

A: BZT52C2V7T-7 has a higher power rating (300 mW vs. 200 mW) and wider tolerance (±7% vs. ±5%). The zener voltage (2.7 V), package (SOD-523), and operating temperature range (-65°C to 150°C) are identical. This part is suitable for applications requiring additional power dissipation capability.

Q: Can CZRU52C2V7 replace the original part in all applications?

A: CZRU52C2V7 is functionally equivalent for zener voltage (2.7 V) and tolerance (±5%), but has limitations. Power rating is 150 mW (lower than 200 mW), operating temperature range is reduced to -55°C to 125°C, and the package is 0603/SOD-523F instead of SOD-523. This part is suitable only for applications where these reduced specifications are acceptable.

Q: What does the tolerance specification mean for zener diode selection?

A: Tolerance specifies the allowable deviation of the zener voltage from the nominal value. The original part has ±5% tolerance, meaning the actual zener voltage will be between 2.565 V and 2.835 V. BZT52C2V7T-7 has ±7% tolerance (2.511 V to 2.889 V). Tighter tolerance (±5%) is preferred for precision voltage regulation applications.

Q: Why is the operating temperature range important for substitution?

A: Operating temperature range defines the ambient conditions under which the part functions within specification. The original part operates from -65°C to 150°C. CZRU52C2V7 and CZRUR52C2V7 are limited to -55°C to 125°C. If the application requires operation below -55°C or above 125°C, these Comchip parts are not suitable.

Q: What is the significance of reverse leakage current in zener diode selection?

A: Reverse leakage current affects power consumption and circuit performance when the diode is reverse-biased. Lower leakage current reduces standby power consumption. The original part specifies 50 µA @ 1 V. BZX584C2V7-G3-08 and BZT52C2V7T-7 have lower leakage (20 µA), while CZRU52C2V7 and CZRUR52C2V7 have higher leakage (75 µA). Selection depends on application sensitivity to leakage current.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part specification.

Q: What is the difference between BZT52C2V7T-TP and other substitutes?

A: BZT52C2V7T-TP has the lowest power rating at 100 mW. This part is suitable only for applications where power dissipation requirements are significantly lower than the original 200 mW specification. Zener voltage (2.7 V), tolerance (±5%), and operating temperature range (-65°C to 150°C) are compatible with the original part.

Q: Can I use a higher power-rated zener diode in place of the original?

A: Yes, if the application circuit design permits. BZT52C2V7T-7 (300 mW) can be used in place of the original 200 mW part. The higher power rating provides additional thermal margin and does not negatively affect circuit performance. However, physical package dimensions must remain compatible with the PCB layout.

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