BZX584C6V2-V-G-08 Equivalent & Substitute Parts

Part Overview

The BZX584C6V2-V-G-08 is a Zener diode rated at 6.2 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. Due to its obsolete status and limited availability relative to active alternatives, equivalent substitute parts are necessary to maintain design continuity and ensure long-term supply chain reliability. Substitute parts must maintain electrical equivalence across voltage regulation, power handling, and thermal characteristics while accommodating modern packaging and manufacturing standards.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	6.2	V
Tolerance	±5%	—
Power - Max	200	mW
Impedance (Max)	10	Ohms
Current - Reverse Leakage @ Vr	3	µA @ 4 V
Operating Temperature	-65 to 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

Substitute parts for the BZX584C6V2-V-G-08 are selected based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

Voltage - Zener (Nom): 6.2 V (exact match required)
Tolerance: ±5% or tighter (±6% acceptable with design margin verification)
Power - Max: Equal to or greater than 200 mW
Impedance (Max): 10 Ohms or lower
Current - Reverse Leakage: 3 µA @ 4 V or lower
Operating Temperature Range: Minimum -65°C to 150°C
Mounting Type: Surface Mount
Package / Case: SOD-523 compatible
RoHS Status: ROHS3 Compliant

Substitution Categories:

Category 1 - Direct Vishay Replacement (Same Series): BZX584C6V2-G3-08 maintains the same base product number and electrical specifications with improved impedance characteristics and active product status.

Category 2 - Higher Power Capability (300 mW): BZT52C6V2T-7 provides increased power dissipation capacity while maintaining voltage and tolerance specifications, suitable for applications requiring thermal margin.

Category 3 - Lower Power Capability (100 mW): BZT52C6V2T-TP operates at reduced power levels and is applicable to current-limited circuit designs where 200 mW exceeds application requirements.

Category 4 - Alternative Package Form Factor (0603/SOD-523F): CZRUR52C6V2 and CZRU52C6V2 provide equivalent electrical performance in a compact 0603 surface mount package, suitable for space-constrained layouts.

Category 5 - Enhanced Leakage Performance (1 µA @ 5 V): DDZ9691T-7 offers superior reverse leakage characteristics, beneficial for precision voltage regulation applications.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power Max	Impedance Max	Reverse Leakage	Temp Range	Package	Status
BZX584C6V2-V-G-08	Vishay	6.2 V	±5%	200 mW	10 Ω	3 µA @ 4 V	-65 to 150°C	SOD-523	Obsolete
BZX584C6V2-G3-08	Vishay	6.2 V	±5%	200 mW	6 Ω	3 µA @ 4 V	-65 to 150°C	SOD-523	Active
BZT52C6V2T-7	Diodes Inc.	6.2 V	±6%	300 mW	10 Ω	3 µA @ 4 V	-65 to 150°C	SOD-523	Active
BZT52C6V2T-TP	Micro Commercial Co	6.2 V	±5%	100 mW	10 Ω	3 µA @ 4 V	-65 to 150°C	SOD-523	Active
CZRUR52C6V2	Comchip Tech	6.2 V	±5%	150 mW	10 Ω	100 nA @ 2 V	-55 to 125°C	0603/SOD-523F	Active
CZRU52C6V2	Comchip Tech	6.2 V	±5%	150 mW	10 Ω	100 nA @ 2 V	-55 to 125°C	0603/SOD-523F	Active
DDZ9691T-7	Diodes Inc.	6.2 V	±5%	150 mW	—	1 µA @ 5 V	-65 to 150°C	SOD-523	Active

Engineering Selection Recommendations

Primary Recommendation: BZX584C6V2-G3-08

This part is the direct successor within the Vishay BZX584C series. It maintains identical electrical specifications to the original BZX584C6V2-V-G-08 while offering improved impedance performance (6 Ω versus 10 Ω). The part is in active production status with substantial inventory availability (14,620 units). Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating. This substitution requires no circuit redesign and provides the highest compatibility assurance.

Secondary Recommendation: BZT52C6V2T-7

This Diodes Incorporated part provides 300 mW power capability, exceeding the original 200 mW specification. It maintains the required 6.2 V nominal voltage, ±6% tolerance (within acceptable margin), and full temperature range (-65°C to 150°C). The part is actively manufactured with 2,490 units in stock. This option is suitable for applications where thermal margin enhancement is beneficial or where the original part's power rating was marginal.

Alternative for Space-Constrained Designs: CZRUR52C6V2 or CZRU52C6V2

These Comchip Technology parts offer equivalent 6.2 V regulation in a compact 0603 surface mount package. Both maintain ±5% tolerance and active production status. The operating temperature range is reduced to -55°C to 125°C, which is acceptable for most commercial and industrial applications. These parts are suitable only when PCB layout constraints necessitate smaller package geometry. Inventory availability is high (62,036 and 779 units respectively).

Consideration for Precision Applications: DDZ9691T-7

This Diodes Incorporated part features superior reverse leakage performance (1 µA @ 5 V versus 3 µA @ 4 V), beneficial for precision voltage reference circuits. It maintains 6.2 V nominal voltage, ±5% tolerance, and full temperature range. Power rating is 150 mW, which is lower than the original specification. This part is suitable only when leakage current reduction is a design requirement and power dissipation does not exceed 150 mW.

Not Recommended: BZT52C6V2T-TP

While this Micro Commercial Co part maintains voltage and tolerance specifications, its 100 mW power rating falls below the original 200 mW specification. This part is suitable only for applications where circuit design confirms power dissipation will not exceed 100 mW.

All recommended substitutes carry ROHS3 compliance and unlimited moisture sensitivity rating, matching the original part's environmental certifications.

Frequently Asked Questions (FAQ)

Q: Can BZX584C6V2-G3-08 be used as a direct replacement for BZX584C6V2-V-G-08?

A: Yes. Both parts share identical nominal voltage (6.2 V), tolerance (±5%), power rating (200 mW), and operating temperature range (-65°C to 150°C). The BZX584C6V2-G3-08 features improved impedance (6 Ω versus 10 Ω), which provides superior voltage regulation performance. No circuit modifications are required.

Q: What is the difference between SOD-523 and 0603 packages?

A: SOD-523 and 0603 are different surface mount package designations for the same physical form factor. SOD-523 is the industry standard designation for this diode package, while 0603 refers to the rectangular dimensions (0.060" × 0.030"). Parts specified as 0603/SOD-523F are mechanically and electrically compatible with SOD-523 packages. Verify PCB footprint compatibility before substitution.

Q: Can I use BZT52C6V2T-7 (300 mW) instead of the original 200 mW part?

A: Yes. Higher power rating provides additional thermal margin and does not degrade circuit performance. The part maintains 6.2 V nominal voltage and ±6% tolerance. Verify that the ±6% tolerance (versus original ±5%) is acceptable for your voltage regulation requirements. This substitution is suitable for applications where thermal stress reduction is beneficial.

Q: Is BZT52C6V2T-TP (100 mW) suitable for my application?

A: Only if circuit analysis confirms that Zener diode power dissipation will not exceed 100 mW under all operating conditions, including worst-case scenarios. If the original design specified 200 mW, this part is not recommended unless circuit modifications reduce power dissipation requirements.

Q: What are the temperature range implications of using CZRUR52C6V2?

A: CZRUR52C6V2 operates from -55°C to 125°C, compared to the original -65°C to 150°C range. This part is suitable for commercial and industrial applications operating within standard temperature ranges. It is not suitable for military-grade or extended temperature applications requiring the full -65°C to 150°C range.

Q: Why does DDZ9691T-7 have lower reverse leakage current?

A: DDZ9691T-7 specifies 1 µA @ 5 V reverse leakage, compared to 3 µA @ 4 V for the original part. Lower leakage current improves voltage regulation stability in precision applications. However, this part's 150 mW power rating is lower than the original 200 mW specification, limiting its use to current-limited circuit designs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification, matching the original BZX584C6V2-V-G-08. All parts also carry unlimited moisture sensitivity rating (MSL 1).

Q: What inventory considerations should I evaluate?

A: BZX584C6V2-G3-08 has the highest inventory availability (14,620 units), followed by DDZ9691T-7 (29,300 units) and CZRU52C6V2 (62,036 units). BZT52C6V2T-7 has 2,490 units available. Verify long-term supply commitments with your component distributor before finalizing substitution decisions.

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