Equivalent & Substitute Parts for VDZT2R20B

Part Overview

The Rohm Semiconductor VDZT2R20B is a Zener diode rated for 20 V nominal Zener voltage and 100 mW maximum power dissipation, designed for surface mount applications in a SOD-723 (VMD2) package. The part is categorized under Diodes, Zener. It features ±2% voltage tolerance, 85 Ohms maximum impedance, and maximum reverse leakage current of 100 nA at 15 V. The device is RoHS3 compliant and REACH unaffected. The product is currently classified as obsolete, which necessitates identification of alternative models for continued design-in, manufacturing support, and field servicing.

Substiute Parts

VDZT2R20B

Rohm SemiconductorIn Stock: 18653VDZT2R20B Datasheet

Current PartRFQ

CDZVT2R20B

Rohm SemiconductorIn Stock: 13653CDZVT2R20B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute and equivalent parts for the VDZT2R20B are identified strictly by matching the following electrical and mechanical parameters: category (Diodes, Zener), nominal Zener voltage (20 V), power rating (100 mW), maximum impedance (85 Ohms), maximum reverse leakage current at defined voltage (100 nA @ 15 V), mounting type (Surface Mount), and compliance attributes (RoHS3, REACH). Compatibility across these parameters is required for valid substitution within this product category.

Parameter Comparison

Engineering Selection Recommendations

VDZT2R20B is obsolete, while CDZVT2R20B is actively available. Both parts are RoHS3 compliant and REACH unaffected, with identical maximum power, Zener voltage, impedance, and reverse leakage specifications. CDZVT2R20B provides the required compliance and matching core parameters for substitution within RoHS and REACH controlled environments.

Frequently Asked Questions (FAQ)

Q1: What key parameters must match when substituting Zener diodes in this category?
A1: Nominal Zener voltage, maximum power rating, maximum impedance, reverse leakage current at a specified test voltage, mounting type, and compliance certifications are the required matching parameters.

Q2: Are there any package or footprint differences to consider?
A2: The main part uses SOD-723 (VMD2) while the substitute uses VMN2M (SOD-923); verify package compatibility in PCB layouts based strictly on the provided mechanical parameters.

Q3: Do both VDZT2R20B and CDZVT2R20B meet environmental and compliance standards?
A3: Both parts are ROHS3 compliant and REACH unaffected as per the provided data.

Q4: Is there a difference in maximum operating temperature?
A4: The listed operating temperature for VDZT2R20B is -55°C ~ 150°C, while CDZVT2R20B references 150°C; confirm suitability based on the operating environment and product requirements.

Q5: Can switching to CDZVT2R20B impact system-level Zener performance?
A5: Both parts feature identical Zener voltage (20 V), maximum power (100 mW), impedance (85 Ohms), and reverse leakage (100 nA @ 15 V) as provided, which are the critical parameters for system-level Zener function.