BZX584C8V2-V-G-08 Equivalent & Substitute Parts

Part Overview

The BZX584C8V2-V-G-08 is a Zener diode rated at 8.2 V nominal voltage with 200 mW maximum power dissipation in a surface mount SOD-523 package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as obsolete. Locating equivalent and substitute parts is necessary to support ongoing production requirements, design revisions, and inventory management for applications utilizing this Zener diode specification.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	8.2 V
Tolerance	±5%
Power - Max	200 mW
Impedance (Max) (Zzt)	15 Ohms
Current - Reverse Leakage @ Vr	700 nA @ 5 V
Operating Temperature	-65°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	SC-79, SOD-523
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BZX584C8V2-V-G-08 is determined by the following critical parameters:

Primary Substitution Criteria:

Zener voltage: 8.2 V nominal
Tolerance: ±5% or ±6%
Power rating: 200 mW or greater
Package: SOD-523 or equivalent surface mount form factor
Reverse leakage current: 700 nA or lower at specified voltage
Operating temperature range: -65°C to 150°C or compatible subset
RoHS3 compliance and MSL Level 1

Substitution Categories:

Direct Equivalents (Active Status): Parts meeting all primary criteria with identical or superior electrical performance and active product status.

Functional Equivalents (Higher Power Rating): Parts with 8.2 V nominal voltage and power ratings exceeding 200 mW, suitable for applications with margin requirements.

Functional Equivalents (Lower Power Rating): Parts with 8.2 V nominal voltage and power ratings below 200 mW, suitable only for applications with reduced power dissipation requirements.

Package Variants: Parts with alternative surface mount packages (0603/SOD-523F) that maintain electrical specifications but differ in physical form factor.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power - Max	Zzt (Max)	Reverse Leakage @ Vr	Operating Temp	Package	Product Status
BZX584C8V2-V-G-08	Vishay	8.2 V	±5%	200 mW	15 Ohms	700 nA @ 5 V	-65°C ~ 150°C	SOD-523	Obsolete
BZX584C8V2-G3-08	Vishay	8.2 V	±5%	200 mW	6 Ohms	700 nA @ 5 V	-65°C ~ 150°C	SOD-523	Active
BZT52C8V2T-7	Diodes Incorporated	8.2 V	±6%	300 mW	15 Ohms	700 nA @ 5 V	-65°C ~ 150°C	SOD-523	Active
BZT52C8V2T-TP	Micro Commercial Co	8.2 V	±5%	100 mW	15 Ohms	700 nA @ 5 V	-65°C ~ 150°C	SOD-523	Active
CZRU52C8V2	Comchip Technology	8.2 V	±5%	150 mW	7 Ohms	100 nA @ 6 V	-55°C ~ 125°C	0603/SOD-523F	Active
CZRUR52C8V2	Comchip Technology	8.2 V	±5%	150 mW	7 Ohms	100 nA @ 6 V	-55°C ~ 125°C	0603/SOD-523F	Active
DDZ9694T-7	Diodes Incorporated	8.2 V	±5%	150 mW	Not specified	100 nA @ 6.2 V	-65°C ~ 150°C	SOD-523	Active

Engineering Selection Recommendations

Recommended Primary Substitute: BZX584C8V2-G3-08

The BZX584C8V2-G3-08 is the preferred direct substitute. Manufactured by Vishay General Semiconductor - Diodes Division, this part maintains identical electrical specifications to the obsolete BZX584C8V2-V-G-08 with active product status. The part features improved impedance performance (6 Ohms maximum versus 15 Ohms), identical voltage and tolerance ratings, and equivalent power dissipation. Both parts share the same SOD-523 package, RoHS3 compliance, and MSL Level 1 rating. This substitute requires no design modification and provides superior performance margin.

Secondary Substitute: BZT52C8V2T-7

The BZT52C8V2T-7 from Diodes Incorporated is suitable for applications requiring higher power dissipation margin. This part provides 300 mW maximum power rating compared to the original 200 mW specification. Voltage and tolerance specifications are compatible (8.2 V nominal, ±6% tolerance). Operating temperature range matches the original part (-65°C to 150°C). The SOD-523 package is identical. This substitute is appropriate for designs where thermal margin or power headroom is beneficial.

Tertiary Substitute: DDZ9694T-7

The DDZ9694T-7 from Diodes Incorporated provides 150 mW power rating with 8.2 V nominal voltage and ±5% tolerance. This part is suitable for applications with reduced power dissipation requirements. Operating temperature range (-65°C to 150°C) and SOD-523 package match the original specification. RoHS3 compliance and MSL Level 1 rating are maintained.

Package Variant Substitutes: CZRU52C8V2 and CZRUR52C8V2

The Comchip Technology parts CZRU52C8V2 and CZRUR52C8V2 provide 8.2 V nominal voltage with ±5% tolerance and 150 mW power rating. These parts utilize an alternative 0603/SOD-523F surface mount package. Operating temperature range is -55°C to 125°C, which represents a narrower range than the original part. These substitutes are suitable only for applications where the reduced temperature range is acceptable and where the alternative package form factor is compatible with PCB layout.

Not Recommended: BZT52C8V2T-TP

The BZT52C8V2T-TP from Micro Commercial Co provides only 100 mW maximum power rating, which is below the original 200 mW specification. This part is suitable only for applications with confirmed reduced power dissipation requirements and should not be used as a general substitute without circuit analysis.

Frequently Asked Questions (FAQ)

Q: Can the BZX584C8V2-G3-08 be used as a direct replacement for the BZX584C8V2-V-G-08?

A: Yes. The BZX584C8V2-G3-08 is a direct substitute with identical electrical specifications. Both parts feature 8.2 V nominal voltage, ±5% tolerance, 200 mW power rating, and SOD-523 package. The BZX584C8V2-G3-08 has active product status and improved impedance performance (6 Ohms versus 15 Ohms maximum). No design modification is required.

Q: What is the difference between the BZT52C8V2T-7 and the original BZX584C8V2-V-G-08?

A: The BZT52C8V2T-7 provides higher power dissipation capability (300 mW versus 200 mW). Voltage specifications are identical (8.2 V nominal). Tolerance is ±6% compared to ±5% in the original part. Both parts operate across -65°C to 150°C and use the SOD-523 package. The higher power rating makes this part suitable for applications requiring additional thermal margin.

Q: Are the Comchip Technology parts (CZRU52C8V2 and CZRUR52C8V2) compatible with the original design?

A: These parts are electrically compatible but use an alternative 0603/SOD-523F package form factor. The operating temperature range is narrower (-55°C to 125°C versus -65°C to 150°C). Power rating is 150 mW, below the original 200 mW specification. These parts are suitable only if PCB layout accommodates the alternative package and if the reduced temperature range meets application requirements.

Q: Why is the BZT52C8V2T-TP not recommended as a general substitute?

A: The BZT52C8V2T-TP provides only 100 mW maximum power rating, which is 50% below the original 200 mW specification. This part is suitable only for applications with confirmed reduced power dissipation requirements. Use of this part in designs requiring full 200 mW capability will result in thermal stress and potential component failure.

Q: What compliance certifications are maintained across all substitute parts?

A: All substitute parts listed maintain RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for all parts. ECCN classification is EAR99 for all parts. These certifications ensure regulatory compliance and handling compatibility with the original part.

Q: Can the DDZ9694T-7 be used in applications requiring the full 200 mW power rating?

A: The DDZ9694T-7 provides 150 mW maximum power rating. This part is suitable only for applications with confirmed power dissipation at or below 150 mW. Applications requiring the full 200 mW capability should use the BZX584C8V2-G3-08 or BZT52C8V2T-7 instead.

Q: Are there package compatibility considerations when selecting a substitute?

A: Yes. The BZX584C8V2-G3-08, BZT52C8V2T-7, and DDZ9694T-7 all use the SOD-523 package and are directly compatible with PCB layouts designed for the original BZX584C8V2-V-G-08. The CZRU52C8V2 and CZRUR52C8V2 use an alternative 0603/SOD-523F package and require PCB layout verification before implementation.

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