BZX584C13-V-G-08 Equivalent & Substitute Parts

Part Overview

The BZX584C13-V-G-08 is a Zener diode rated at 13 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 for applications requiring 13 V Zener regulation in compact surface mount form factors.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	13	V
Tolerance	±5%	—
Power - Maximum	200	mW
Impedance (Maximum)	30	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 8 V
Operating Temperature Range	-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

Substitution of the BZX584C13-V-G-08 is determined by the following critical parameters:

Primary Substitution Criteria:

Zener voltage: 13 V nominal
Tolerance: ±5% or ±6% (within acceptable regulation margin)
Package / Case: SOD-523 or equivalent 0603/SOD-523F form factor
Mounting Type: Surface Mount
RoHS3 Compliance: Required
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Compatibility Factors:

Power rating: 100 mW minimum (application-dependent; higher ratings provide design margin)
Operating temperature range: -65°C to 150°C preferred for full compatibility
Reverse leakage current: 50–100 nA range acceptable
Impedance: 10–30 Ohms acceptable

Substitute parts are grouped into two categories based on package form factor: SOD-523 package variants (direct mechanical and electrical equivalents) and 0603/SOD-523F package variants (alternative form factor with compatible electrical specifications).

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Ir @ Vr	Temp Range	Package	Status
BZX584C13-V-G-08	Vishay	13 V	±5%	200 mW	30 Ω	100 nA @ 8 V	-65 to 150°C	SOD-523	Obsolete
BZX584C13-G3-08	Vishay	13 V	±5%	200 mW	10 Ω	100 nA @ 8 V	-65 to 150°C	SOD-523	Active
BZT52C13T-7	Diodes Inc.	13 V	±6%	300 mW	30 Ω	100 nA @ 8 V	-65 to 150°C	SOD-523	Active
BZT52C13T-TP	Micro Commercial Co	13 V	±5%	100 mW	30 Ω	100 nA @ 8 V	-65 to 150°C	SOD-523	Active
DDZ9700T-7	Diodes Inc.	13 V	±5%	150 mW	—	50 nA @ 9.8 V	-65 to 150°C	SOD-523	Active
CZRU52C13	Comchip Tech	13 V	±5%	150 mW	25 Ω	100 nA @ 10 V	-55 to 125°C	0603/SOD-523F	Active
CZRUR52C13	Comchip Tech	13 V	±5%	150 mW	25 Ω	100 nA @ 10 V	-55 to 125°C	0603/SOD-523F	Active

Engineering Selection Recommendations

Direct SOD-523 Package Substitutes (Preferred for Pin-Compatible Replacement):

BZX584C13-G3-08 (Vishay) is the primary recommended substitute. This part maintains identical voltage and tolerance specifications, shares the same manufacturer lineage (BZX584C series), and is in active production status. The improved impedance specification (10 Ω vs. 30 Ω) provides superior regulation characteristics. Operating temperature range and RoHS3 compliance are fully compatible.

BZT52C13T-7 (Diodes Incorporated) is an active alternative with higher power rating (300 mW), providing additional thermal margin for applications with variable load conditions. Tolerance is ±6%, which remains within acceptable regulation parameters for 13 V Zener applications. Full temperature range compatibility (-65°C to 150°C) and RoHS3 compliance are confirmed.

DDZ9700T-7 (Diodes Incorporated) offers 150 mW power rating with improved reverse leakage characteristics (50 nA vs. 100 nA). This part is suitable for low-leakage applications and maintains full temperature range compatibility.

BZT52C13T-TP (Micro Commercial Co) is rated at 100 mW, which is below the original specification. This part is suitable only for applications where power dissipation does not exceed 100 mW. Tolerance and temperature range are fully compatible.

Alternative Package Form Factor (0603/SOD-523F):

CZRU52C13 and CZRUR52C13 (Comchip Technology) are functionally equivalent alternatives in 0603/SOD-523F package form. These parts require PCB layout modification due to different package geometry. Operating temperature range is reduced to -55°C to 125°C, which may not be suitable for applications requiring full -65°C to 150°C operation. Both parts are in active production with RoHS3 compliance.

Selection Basis: All recommended substitutes maintain RoHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status. Selection should prioritize active production status parts (BZX584C13-G3-08, BZT52C13T-7, DDZ9700T-7) over obsolete designs. Package form factor (SOD-523 vs. 0603/SOD-523F) determines mechanical compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can BZX584C13-G3-08 be used as a direct replacement for BZX584C13-V-G-08?

A: Yes. Both parts share identical nominal voltage (13 V), tolerance (±5%), power rating (200 mW), and SOD-523 package. BZX584C13-G3-08 is in active production status, whereas the original part is obsolete. The improved impedance specification (10 Ω vs. 30 Ω) provides better regulation performance.

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

A: SOD-523 and 0603/SOD-523F are physically different package geometries. SOD-523 is a two-terminal surface mount package with specific lead dimensions. 0603/SOD-523F is a chip resistor-style package. These are not mechanically interchangeable without PCB redesign. Verify footprint compatibility before substitution.

Q: Can I use BZT52C13T-TP (100 mW) in place of BZX584C13-V-G-08 (200 mW)?

A: Only if the application power dissipation does not exceed 100 mW. The original part is rated for 200 mW maximum. Using a lower-rated part in a higher-power application will cause premature failure. Verify actual circuit power requirements before substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original part specifications.

Q: What is the significance of impedance (Zzt) differences between parts?

A: Impedance affects Zener regulation quality. Lower impedance (10 Ω in BZX584C13-G3-08 vs. 30 Ω in the original) provides tighter voltage regulation and faster transient response. Higher impedance parts are acceptable for applications with stable load conditions but may show greater voltage variation under dynamic load changes.

Q: Can I substitute CZRU52C13 (0603 package) without PCB modification?

A: No. The 0603/SOD-523F package has different physical dimensions and lead spacing compared to SOD-523. PCB footprint modification is required. Additionally, the operating temperature range is reduced to -55°C to 125°C, which may not support applications requiring -65°C operation.

Q: Which substitute offers the best thermal performance?

A: BZT52C13T-7 (Diodes Incorporated) offers the highest power rating at 300 mW, providing the greatest thermal margin. This part is recommended for applications with variable or high-current load conditions where thermal headroom is critical.

Q: Are there any compliance or certification differences between substitutes?

A: All substitute parts maintain identical RoHS3, REACH Unaffected, and MSL Level 1 status. ECCN and HTSUS classifications are consistent across all parts. No compliance barriers exist for substitution.

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