BZX584C36-V-G-08 Equivalent & Substitute Parts

Part Overview

The BZX584C36-V-G-08 is a 36 V Zener diode rated at 200 mW with ±5% tolerance, manufactured by Vishay General Semiconductor - Diodes Division in the SOD-523 surface mount package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design support and procurement continuity. Substitute parts are selected based on matching or superior electrical characteristics within the 36 V Zener voltage class and compatible surface mount packaging.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	36	V
Tolerance	±5%	—
Power - Max	200	mW
Impedance (Max)	90	Ohms
Current - Reverse Leakage @ Vr	50	nA @ 25.2 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 BZX584C36-V-G-08 is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage: 36 V nominal
Tolerance: ±5% or ±6% (acceptable variance)
Power dissipation: 200 mW or greater
Surface mount package: SOD-523 or equivalent form factor
RoHS3 compliance and MSL 1 rating

Substitution Logic: Parts are grouped into two categories based on electrical equivalence and product status:

Direct Equivalents (Active Status): Parts with identical or superior power ratings, matching Zener voltage, and compatible packaging. These are preferred for new designs and procurement.
Functional Equivalents (Reduced Power Rating): Parts with lower power dissipation (100–150 mW) but matching Zener voltage and tolerance. These are suitable for applications where the full 200 mW rating is not required.

All substitute parts maintain RoHS3 compliance, MSL 1 rating, and surface mount configuration, ensuring compatibility with existing PCB assembly processes.

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Tolerance	Power (mW)	Impedance (Ohms)	Reverse Leakage (nA)	Temp Range (°C)	Package	Status
BZX584C36-V-G-08	Vishay	36	±5%	200	90	50 @ 25.2 V	-65 to 150	SOD-523	Obsolete
BZX584C36-G3-08	Vishay	36	±5%	200	35	50 @ 25.2 V	-65 to 150	SOD-523	Active
DDZ9715T-7	Diodes Inc.	36	±5%	150	—	50 @ 27.3 V	-65 to 150	SOD-523	Active
BZT52C36T-TP	Micro Commercial Co	36	±6%	100	90	100 @ 25.2 V	-65 to 150	SOD-523	Active
CZRU52C36	Comchip Technology	36	±5%	150	90	100 @ 27 V	-55 to 125	0603/SOD-523F	Active
CZRUR52C36	Comchip Technology	36	±5%	150	90	100 @ 27 V	-55 to 125	0603/SOD-523F	Active

Engineering Selection Recommendations

Tier 1 - Preferred Direct Replacement:

BZX584C36-G3-08 (Vishay) is the primary recommended substitute. This part maintains identical electrical specifications to the obsolete BZX584C36-V-G-08, including 36 V Zener voltage, ±5% tolerance, and 200 mW power rating. The BZX584C36-G3-08 features improved impedance characteristics (35 Ohms vs. 90 Ohms) and is in active production status with substantial inventory availability (16,236 units). Both parts share the same SOD-523 package and base product series (BZX584C), ensuring direct PCB compatibility without layout modifications.

Tier 2 - Functional Equivalents (Power-Reduced Applications):

DDZ9715T-7 (Diodes Incorporated) and CZRU52C36/CZRUR52C36 (Comchip Technology) are suitable for applications where 150 mW power dissipation meets design requirements. These parts maintain 36 V Zener voltage and ±5% tolerance. DDZ9715T-7 operates across the full -65°C to 150°C temperature range and is available in high volume (62,200 units). CZRU52C36 and CZRUR52C36 operate within -55°C to 125°C and use the 0603/SOD-523F package form factor.

Tier 3 - Reduced Specification Alternative:

BZT52C36T-TP (Micro Commercial Co) provides 100 mW power dissipation with ±6% tolerance. This part is suitable only for low-power applications and should be evaluated against thermal and tolerance requirements. The ±6% tolerance represents a 1% relaxation from the original ±5% specification.

All recommended substitutes maintain RoHS3 compliance, MSL 1 rating, and surface mount configuration. Selection should be based on application power requirements, operating temperature range, and tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can BZX584C36-G3-08 be used as a direct replacement for BZX584C36-V-G-08?

A: Yes. BZX584C36-G3-08 is a direct replacement. Both parts share identical Zener voltage (36 V), tolerance (±5%), power rating (200 mW), and SOD-523 package. BZX584C36-G3-08 is in active production and offers improved impedance characteristics (35 Ohms vs. 90 Ohms). No circuit modifications are required.

Q: What is the difference between DDZ9715T-7 and the original BZX584C36-V-G-08?

A: DDZ9715T-7 has a lower power rating (150 mW vs. 200 mW) but maintains the same 36 V Zener voltage, ±5% tolerance, and SOD-523 package. It is suitable for applications where 150 mW dissipation is sufficient. Operating temperature range is identical (-65°C to 150°C).

Q: Are CZRU52C36 and CZRUR52C36 interchangeable?

A: CZRU52C36 and CZRUR52C36 are functionally equivalent, both manufactured by Comchip Technology with identical electrical specifications (36 V, ±5%, 150 mW). Both use the 0603/SOD-523F package. The primary difference is packaging format (Tape & Reel). They are interchangeable from an electrical standpoint.

Q: Can I use BZT52C36T-TP in place of BZX584C36-V-G-08?

A: BZT52C36T-TP can be used only if application power requirements do not exceed 100 mW. This part has a lower power rating (100 mW vs. 200 mW) and relaxed tolerance (±6% vs. ±5%). Verify thermal and tolerance margins before substitution.

Q: What is the operating temperature difference between substitute parts?

A: BZX584C36-G3-08 and DDZ9715T-7 operate across -65°C to 150°C, matching the original part. CZRU52C36 and CZRUR52C36 operate within a narrower range (-55°C to 125°C). Select based on application temperature requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original BZX584C36-V-G-08 compliance status.

Q: What is the impedance difference between BZX584C36-V-G-08 and BZX584C36-G3-08?

A: BZX584C36-G3-08 has lower impedance (35 Ohms vs. 90 Ohms). Lower impedance provides improved voltage regulation and reduced dynamic resistance, representing an enhancement over the original part specification.

Q: Can I mix substitute parts from different manufacturers in the same design?

A: Yes, provided all parts meet the application's electrical requirements (Zener voltage, power dissipation, tolerance, temperature range). Verify package compatibility with PCB layout and assembly processes. All listed substitutes use compatible surface mount packages.

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