Equivalent & Substitute Parts Reference – EDZVT2R30B

Part Overview

Manufacturer part number EDZVT2R30B is a Zener Diode produced by Rohm Semiconductor, categorized under Diodes, Zener, and offered in surface-mount SC-79/SOD-523 packaging (EMD2). It features a nominal Zener voltage of 30 V, maximum power dissipation of 150 mW, ±3% tolerance, and maximum impedance of 200 Ohms. The part is currently active and RoHS3 compliant, with a broad operating temperature range and moisture sensitivity level 1 (unlimited). It is necessary to identify alternative models to address supply chain continuity, manage product lifecycle changes, or achieve compatibility in design modularization when the EDZVT2R30B is not available.

Key Parameters

Parameter	EDZVT2R30B Value
Voltage - Zener (Nom) (Vz)	30 V
Tolerance	±3%
Power - Max	150 mW
Impedance (Max) (Zzt)	200 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 23 V
Operating Temperature	-55°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	SC-79, SOD-523
Supplier Device Package	EMD2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution is determined strictly by matching the following key electrical and mechanical parameters:

Zener voltage (Vz)
Tolerance
Maximum power dissipation
Maximum impedance (Zzt)
Reverse leakage current at rated voltage
Operating temperature range
Surface mount compatibility
Package equivalence (SC-79/SOD-523/EMD2 or SOD-523)
RoHS3 compliance and MSL

Parts are grouped as either parametric equivalents (all key parameters matched) or similar parts (deviations in listed parameters such as tolerance, power, or impedance). Substitution logic only considers explicit parameter values.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Moisture Sensitivity Level (MSL)
EDZVT2R30B	Rohm Semiconductor	Active	30 V	±3%	150 mW	200 Ohms	100 nA @ 23 V	-55°C ~ 150°C	Surface Mount	SC-79, SOD-523	EMD2	ROHS3 Compliant	1 (Unlimited)
EDZTE6130B	Rohm Semiconductor	Obsolete	30 V	±3%	150 mW	200 Ohms	100 nA @ 23 V	-55°C ~ 150°C	Surface Mount	SC-79, SOD-523	EMD2	ROHS3 Compliant	1 (Unlimited)
BZX585-B30,115	Nexperia USA Inc.	Active	30 V	±2%	300 mW	80 Ohms	50 nA @ 21 V	-65°C ~ 150°C	Surface Mount	SC-79, SOD-523	SOD-523	ROHS3 Compliant	1 (Unlimited)
CMOZ3L0 TR PBFREE	Central Semiconductor Corp	Active	3 V	±5%	250 mW	1600 Ohms	5 µA @ 1 V	-65°C ~ 150°C	Surface Mount	SC-79, SOD-523	SOD-523	ROHS3 Compliant	1 (Unlimited)

Engineering Selection Recommendations

Parametric selection must be based on explicit product status and compliance:

EDZVT2R30B is an active part with ROHS3 compliance and unlimited moisture sensitivity level, suitable for designs requiring continued availability.
EDZTE6130B is also ROHS3 compliant and parametric equivalent, but marked as obsolete; verify supply chain conditions for legacy designs.
BZX585-B30,115 is active, ROHS3 compliant, and shares key mounting and package compatibility. The Zener voltage matches, with differences in tolerance, power, and impedance provided.
CMOZ3L0 TR PBFREE is active and ROHS3 compliant, but features a different Zener voltage and other key parameter deviations, and does not meet direct substitution criteria under the current constraints.

Frequently Asked Questions (FAQ)

Q: What criteria must be met for direct substitution of EDZVT2R30B?
A: Zener voltage, tolerance, power rating, impedance, reverse leakage, package type, and compliance status must all match the original part’s specifications.

Q: Why does package type matter for Zener diode substitution?
A: Package and mounting compatibility (SC-79, SOD-523, EMD2) ensure fit on the PCB and maintain thermal and electrical characteristics.

Q: Can a part marked obsolete be used as a substitute?
A: Obsolete parts, such as EDZTE6130B, can be selected if inventory is available and lifecycle considerations allow.

Q: Is a higher power rating acceptable for substitution?
A: Only if all other key parameters, including voltage, tolerance, and impedance, are compatible under design requirements.

Q: Are all substitute parts ROHS3 compliant and suitable for surface-mount assembly?
A: Yes, according to provided data, all listed substitute parts are ROHS3 compliant and support surface mount packaging (SC-79, SOD-523, or EMD2).

Q: What impact does moisture sensitivity level (MSL) have in selection?
A: MSL 1 (unlimited) is preferred for assembly processes with no moisture sensitivity constraints. All listed substitutes meet this requirement.

Q: How does tolerance affect compatibility?
A: Tolerance variance affects expected voltage regulation precision. Selection should match or exceed the original component’s tolerance specifications as required.

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