BZX584C7V5-V-G-08 Equivalent & Substitute Parts

Part Overview

The BZX584C7V5-V-G-08 is a Zener diode rated at 7.5 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 product status. Due to its obsolete designation, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Substitute parts maintain the core electrical specifications while offering improved availability and active product support.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	7.5	V
Tolerance	±5%	—
Power - Max	200	mW
Impedance (Max)	15	Ohms
Current - Reverse Leakage @ Vr	1	µA @ 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	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BZX584C7V5-V-G-08 is determined by the following critical parameters:

Primary Substitution Criteria:

Zener voltage: 7.5 V nominal
Tolerance: ±5% or ±6%
Power rating: 200 mW or greater
Reverse leakage current: 1 µA @ 5 V or lower
Operating temperature range: -65°C to 150°C or equivalent
Package: SOD-523 or compatible surface mount package
RoHS3 compliance and MSL 1 rating

Substitute Categories:

Category 1 - Direct Electrical Equivalents (Same Power Rating): Parts maintaining 200 mW power dissipation with identical zener voltage and tolerance specifications. BZX584C7V5-G3-08 from Vishay represents an active product variant within the same series.

Category 2 - Higher Power Capability: Parts rated at 300 mW or 150 mW power dissipation. BZT52C7V5T-7 (300 mW) and DDZ9693T-7 (150 mW) provide alternative power ratings while maintaining the 7.5 V zener specification. These parts are suitable for applications where the original 200 mW rating is not a limiting constraint.

Category 3 - Lower Power Rating: BZT52C7V5T-TP rated at 100 mW is applicable only where power dissipation requirements do not exceed this limit.

Category 4 - Alternative Package Geometry: CZRU52C7V5 and CZRUR52C7V5 from Comchip Technology provide 0603/SOD-523F package options with 150 mW rating. These are suitable for designs where the 0603 footprint is compatible with the application.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Ir @ Vr	Temp Range	Package	Status
BZX584C7V5-V-G-08	Vishay	7.5 V	±5%	200 mW	15 Ω	1 µA @ 5 V	-65°C ~ 150°C	SOD-523	Obsolete
BZX584C7V5-G3-08	Vishay	7.5 V	±5%	200 mW	6 Ω	1 µA @ 5 V	-65°C ~ 150°C	SOD-523	Active
BZT52C7V5T-7	Diodes Incorporated	7.5 V	±6%	300 mW	15 Ω	1 µA @ 5 V	-65°C ~ 150°C	SOD-523	Active
BZT52C7V5T-TP	Micro Commercial Co	7.5 V	±5%	100 mW	15 Ω	1 µA @ 5 V	-65°C ~ 150°C	SOD-523	Active
DDZ9693T-7	Diodes Incorporated	7.5 V	±5%	150 mW	—	100 nA @ 5.7 V	-65°C ~ 150°C	SOD-523	Active
CZRU52C7V5	Comchip Technology	7.5 V	±5%	150 mW	7 Ω	100 nA @ 5 V	-55°C ~ 125°C	0603/SOD-523F	Active
CZRUR52C7V5	Comchip Technology	7.5 V	±5%	150 mW	7 Ω	100 nA @ 5 V	-55°C ~ 125°C	0603/SOD-523F	Active

Engineering Selection Recommendations

Primary Recommendation - BZX584C7V5-G3-08: This Vishay part is the preferred direct substitute. It maintains identical electrical specifications (7.5 V, ±5% tolerance, 200 mW power rating) and package format (SOD-523) as the obsolete BZX584C7V5-V-G-08. The part is active product status with ROHS3 compliance and MSL 1 rating. The lower impedance (6 Ω versus 15 Ω) provides improved performance characteristics. Inventory availability is substantial at 24,473 pieces.

Secondary Recommendation - BZT52C7V5T-7: This Diodes Incorporated part is suitable for applications where higher power dissipation capability is beneficial. Rated at 300 mW versus the original 200 mW, it maintains the 7.5 V zener voltage and -65°C to 150°C operating range. Tolerance is ±6% versus ±5%. The part is active status with ROHS3 compliance. High inventory availability at 150,100 pieces supports production continuity.

Alternative Recommendation - DDZ9693T-7: This Diodes Incorporated part provides 150 mW power rating with improved reverse leakage characteristics (100 nA @ 5.7 V). It maintains 7.5 V zener voltage, ±5% tolerance, and -65°C to 150°C operating range in SOD-523 package. Active product status with ROHS3 compliance. Suitable where lower power dissipation is acceptable.

Package-Specific Alternative - CZRU52C7V5 or CZRUR52C7V5: These Comchip Technology parts provide 0603/SOD-523F package options with 150 mW power rating and 7.5 V zener voltage. Operating temperature range is -55°C to 125°C, which is narrower than the original specification. These parts are applicable only where the reduced temperature range and 0603 footprint are compatible with design requirements.

Not Recommended - BZT52C7V5T-TP: The 100 mW power rating is below the original 200 mW specification. This part is suitable only for applications where power dissipation does not exceed 100 mW.

Frequently Asked Questions (FAQ)

Q: Can BZX584C7V5-G3-08 be used as a direct replacement for BZX584C7V5-V-G-08?

A: Yes. Both parts share identical zener voltage (7.5 V), tolerance (±5%), power rating (200 mW), and SOD-523 package. BZX584C7V5-G3-08 is active product status and represents the current equivalent from Vishay. The lower impedance (6 Ω versus 15 Ω) is a performance improvement.

Q: What is the difference between BZT52C7V5T-7 and the original part?

A: BZT52C7V5T-7 is rated at 300 mW power dissipation compared to the original 200 mW. Zener voltage remains 7.5 V. Tolerance is ±6% versus ±5%. The higher power rating provides additional thermal margin in applications where power dissipation approaches the original 200 mW limit. Operating temperature range is identical at -65°C to 150°C.

Q: Are the Comchip parts (CZRU52C7V5 and CZRUR52C7V5) compatible with the original SOD-523 footprint?

A: These parts use 0603/SOD-523F package geometry, which differs from the standard SOD-523 package of the original part. The 0603 footprint is smaller and requires PCB layout modification. These parts are suitable only where the 0603 footprint is compatible with the application design.

Q: What is the significance of the lower reverse leakage current in DDZ9693T-7?

A: DDZ9693T-7 specifies 100 nA @ 5.7 V reverse leakage compared to 1 µA @ 5 V in the original part. Lower reverse leakage indicates reduced off-state current, which is beneficial in applications sensitive to leakage current performance. This is a performance advantage where applicable.

Q: Can BZT52C7V5T-TP be used in place of the original part?

A: BZT52C7V5T-TP is rated at 100 mW power dissipation, which is below the original 200 mW specification. This part is suitable only for applications where actual power dissipation does not exceed 100 mW. Use in higher power applications will result in component failure.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. All parts are classified as EAR99 for export control purposes and are REACH unaffected. These certifications match the original part specifications.

Q: How does operating temperature range affect part selection?

A: The original part and most substitutes operate across -65°C to 150°C. Comchip parts (CZRU52C7V5 and CZRUR52C7V5) have a narrower range of -55°C to 125°C. Selection depends on application temperature requirements. If the application requires operation below -55°C or above 125°C, Comchip parts are not suitable.

Q: What is the difference between CZRU52C7V5 and CZRUR52C7V5?

A: Both parts share identical electrical specifications (7.5 V, ±5%, 150 mW, 0603/SOD-523F package). The difference is in packaging format: CZRU52C7V5 is standard Tape & Reel, while CZRUR52C7V5 is also Tape & Reel. Both are active product status with equivalent availability and performance.

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