BZX584C24-V-G-08 Equivalent & Substitute Parts

Part Overview

The BZX584C24-V-G-08 is a 24 V Zener diode rated at 200 mW, manufactured by Vishay General Semiconductor - Diodes Division in the SOD-523 surface mount package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part operates across a temperature range of -65°C to 150°C and maintains RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	24	V
Tolerance	±5%	—
Power - Maximum	200	mW
Impedance (Maximum)	70	Ohms
Current - Reverse Leakage @ Vr	50	nA @ 16.8 V
Operating Temperature Range	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SC-79, SOD-523	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BZX584C24-V-G-08 is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage: 24 V nominal
Package type: SOD-523 surface mount (SC-79)
Mounting: Surface mount technology
Compliance: RoHS3 and REACH requirements

Secondary Compatibility Factors:

Power dissipation rating (200 mW or higher)
Voltage tolerance (±5% or ±6%)
Impedance characteristics (maximum 70 Ohms or lower)
Reverse leakage current specifications
Operating temperature range (-65°C to 150°C or equivalent)

Substitute parts are grouped into two categories: direct equivalents maintaining identical electrical specifications and functional alternatives with enhanced or modified ratings suitable for the same circuit application.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Ir @ Vr	Temp Range	Package	Status
BZX584C24-V-G-08	Vishay	24 V	±5%	200 mW	70 Ω	50 nA @ 16.8 V	-65 to 150°C	SOD-523	Obsolete
BZX584C24-G3-08	Vishay	24 V	±5%	200 mW	25 Ω	50 nA @ 16.8 V	-65 to 150°C	SOD-523	Active
BZT52C24T-7	Diodes Incorporated	24 V	±6%	300 mW	70 Ω	100 nA @ 16.8 V	-65 to 150°C	SOD-523	Active
BZT52C24T-TP	Micro Commercial Co	24 V	±6%	100 mW	70 Ω	100 nA @ 16.8 V	-65 to 150°C	SOD-523	Active
CZRU52C24	Comchip Technology	24 V	±5%	150 mW	80 Ω	100 nA @ 18 V	-55 to 125°C	0603/SOD-523F	Active
CZRUR52C24	Comchip Technology	24 V	±5%	150 mW	80 Ω	100 nA @ 18 V	-55 to 125°C	0603/SOD-523F	Active
DDZ9709T-7	Diodes Incorporated	24 V	±5%	150 mW	—	50 nA @ 18.2 V	-65 to 150°C	SOD-523	Active

Engineering Selection Recommendations

Direct Equivalent (Preferred Primary Substitute):

BZX584C24-G3-08 from Vishay General Semiconductor - Diodes Division is the direct equivalent. This part maintains identical zener voltage (24 V), tolerance (±5%), power rating (200 mW), and operating temperature range (-65°C to 150°C). The part is active with full availability and carries RoHS3 compliance. The impedance specification is improved (25 Ω versus 70 Ω), providing superior performance characteristics. Packaging remains SOD-523 surface mount, ensuring mechanical compatibility.

Secondary Substitutes (Enhanced Power Rating):

BZT52C24T-7 from Diodes Incorporated provides increased power dissipation (300 mW) while maintaining the 24 V zener voltage and -65°C to 150°C operating range. This part is suitable for applications requiring higher thermal headroom. Tolerance is ±6% and impedance matches the original specification at 70 Ω. RoHS3 compliance is maintained.

Reduced Power Rating Alternative:

BZT52C24T-TP from Micro Commercial Co operates at 100 mW power rating, suitable for lower-power applications. The 24 V zener voltage, ±6% tolerance, and -65°C to 150°C temperature range are maintained. This part is active and RoHS3 compliant.

Package Variant Alternatives:

CZRU52C24 and CZRUR52C24 from Comchip Technology provide 24 V zener diodes in 0603/SOD-523F package format with 150 mW power rating and ±5% tolerance. These parts operate across -55°C to 125°C, representing a narrower temperature range than the original. Both are active and RoHS3 compliant.

Temperature-Matched Alternative:

DDZ9709T-7 from Diodes Incorporated maintains the full -65°C to 150°C operating range with 24 V zener voltage and ±5% tolerance. Power rating is 150 mW. This part is active, RoHS3 compliant, and available in SOD-523 package.

All substitute parts carry RoHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating, matching the original part's regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can BZX584C24-G3-08 be used as a direct replacement for BZX584C24-V-G-08?

A: Yes. BZX584C24-G3-08 is a direct equivalent with identical electrical specifications: 24 V zener voltage, ±5% tolerance, 200 mW power rating, and -65°C to 150°C operating range. Both use SOD-523 surface mount packaging. The substitute part is active and currently available.

Q: What is the difference between BZT52C24T-7 and the original BZX584C24-V-G-08?

A: BZT52C24T-7 provides higher power dissipation (300 mW versus 200 mW) and is manufactured by Diodes Incorporated rather than Vishay. The zener voltage (24 V), operating temperature range (-65°C to 150°C), and SOD-523 package remain identical. Tolerance is ±6% compared to ±5% in the original.

Q: Are the Comchip CZRU52C24 and CZRUR52C24 parts compatible with the original SOD-523 package?

A: These parts use 0603/SOD-523F packaging, which differs from the original SC-79 SOD-523 package. While both are surface mount formats, physical dimensions and PCB footprints differ. Verification of board layout compatibility is required before substitution.

Q: What is the operating temperature limitation of CZRU52C24 and CZRUR52C24?

A: These Comchip parts operate across -55°C to 125°C, which is narrower than the original BZX584C24-V-G-08 range of -65°C to 150°C. Applications requiring full -65°C to 150°C operation must use alternative substitutes such as BZX584C24-G3-08, BZT52C24T-7, or DDZ9709T-7.

Q: Is BZT52C24T-TP suitable for applications requiring 200 mW power dissipation?

A: No. BZT52C24T-TP is rated at 100 mW maximum power dissipation, which is below the original 200 mW specification. This part is suitable only for applications with lower power requirements. For equivalent or higher power ratings, use BZX584C24-G3-08 (200 mW) or BZT52C24T-7 (300 mW).

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. All listed substitute parts carry RoHS3 compliance certification, matching the regulatory status of the original BZX584C24-V-G-08.

Q: What is the impedance difference between BZX584C24-G3-08 and the original part?

A: BZX584C24-G3-08 specifies maximum impedance of 25 Ω, compared to 70 Ω in the original BZX584C24-V-G-08. Lower impedance provides improved voltage regulation characteristics and reduced dynamic resistance in the zener operating region.

Q: Can DDZ9709T-7 be used in place of the original part?

A: Yes, with the exception of power rating. DDZ9709T-7 provides 150 mW dissipation versus the original 200 mW. The 24 V zener voltage, ±5% tolerance, -65°C to 150°C operating range, and SOD-523 package are identical. Applications operating below 150 mW can use this substitute.

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