EDZVT2R33B Equivalent & Substitute Parts Reference

Part Overview

The Rohm Semiconductor EDZVT2R33B is a Zener diode designed for voltage regulation in surface mount applications. It provides a nominal Zener voltage of 33 V with a maximum power dissipation of 150 mW and tight ±2% tolerance, supplied in the SC-79, SOD-523 (EMD2) package. The part is currently active with available inventory. Substitution may be required due to supply chain management, alternative sourcing strategies, or qualification of equivalent products.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	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)	REACH Status	Product Status
EDZVT2R33B	Rohm Semiconductor	Diodes, Zener	33 V	±2%	150 mW	250 Ohms	100 nA @ 25 V	-55°C ~ 150°C	Surface Mount	SC-79, SOD-523	EMD2	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active

Substitute Part Grouping Explanation

Substitute Zener diodes are grouped based on absolute adherence to the following key parameters: Zener voltage (nominal 33 V), Zener voltage tolerance (as specified), maximum power dissipation, maximum impedance, reverse leakage current at specified voltage, operating temperature range, and package compatibility (SC-79, SOD-523 or equivalent), regulatory compliance (RoHS, REACH), and product status (Active). Only components matching these parameters are considered equivalent substitutes.

Parameter Comparison

Parameter	EDZVT2R33B	BZX585-B33,115	CMOZ33V TR PBFREE
Manufacturer	Rohm Semiconductor	Nexperia USA Inc.	Central Semiconductor Corp
Category	Diodes, Zener	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	33 V	33 V	33 V
Tolerance	±2%	±2%	±5%
Power - Max	150 mW	300 mW	300 mW
Impedance (Max) (Zzt)	250 Ohms	80 Ohms	80 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 25 V	50 nA @ 23.1 V	50 nA @ 23.1 V
Operating Temperature	-55°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523
Supplier Device Package	EMD2	SOD-523	SOD-523
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active

Engineering Selection Recommendations

All listed substitute Zener diodes (BZX585-B33,115 and CMOZ33V TR PBFREE) are Active products and demonstrate ROHS3 compliance and REACH unaffected status. Moisture Sensitivity Level is 1 (Unlimited) across all options, indicating identical handling requirements. Each substitute retains sufficient regulatory status and compliance for direct selection based on the provided parameters.

Frequently Asked Questions (FAQ)

Q1: What key parameters determine if a Zener diode is a suitable substitute?
A1: Zener voltage (nominal), voltage tolerance, maximum power dissipation, maximum impedance, reverse leakage current at specified voltage, operating temperature range, package/case, mounting type, and compliance with RoHS and REACH regulations.

Q2: Is package compatibility ensured between EDZVT2R33B and its substitutes?
A2: All parts listed are provided in SC-79, SOD-523 or equivalent packages for surface mount applications.

Q3: How does tolerance affect substitution decisions?
A3: Tolerance defines the accuracy of the Zener voltage. Substitutes are matched according to the specified tolerance, with CMOZ33V TR PBFREE at ±5% and BZX585-B33,115 at ±2%.

Q4: Do all substitutes meet the same environmental and regulatory requirements?
A4: Yes, all listed parts are ROHS3 compliant and REACH unaffected, with Moisture Sensitivity Level 1 (Unlimited).

Q5: Are there differences in maximum power handling between the main and substitute parts?
A5: BZX585-B33,115 and CMOZ33V TR PBFREE support up to 300 mW, exceeding the main part’s 150 mW but remaining compatible within Zener diode application categories.

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