CD0603-Z3 Equivalent & Substitute Parts Reference

Part Overview

The CD0603-Z3, manufactured by Bourns Inc., is a Zener diode specified at 3 V nominal Zener voltage, 150 mW power dissipation, and ±5% tolerance, supplied in a 0603 surface-mount package. Its operating temperature range is -55°C to 125°C. This part is classified as obsolete, so alternative models must be identified to ensure ongoing design and production compatibility.

Substiute Parts

CD0603-Z3

Bourns Inc.In Stock: 1030CD0603-Z3 Datasheet

Current PartRFQ

CZRU52C3

Comchip TechnologyIn Stock: 70423CZRU52C3 Datasheet

DirectRFQ

CZRU52C3-HF

Comchip TechnologyIn Stock: 20280CZRU52C3-HF Datasheet

DirectRFQ

CZRUR52C3

Comchip TechnologyIn Stock: 801CZRUR52C3 Datasheet

DirectRFQ

CZRUR52C3-HF

Comchip TechnologyIn Stock: 1215CZRUR52C3-HF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute Zener diodes for the CD0603-Z3 are selected exclusively according to these key parameters: nominal Zener voltage (3 V), tolerance (±5%), maximum power dissipation (150 mW), maximum impedance (95 Ohms), reverse leakage current (50 µA @ 1 V), operating temperature range (-55°C to 125°C), mounting type (surface mount), package (0603 or equivalent SMD form), RoHS status (ROHS3 Compliant), MSL (1), and REACH status (Unaffected). Only parts strictly matching all these parameters are included.

Parameter Comparison

Engineering Selection Recommendations

The CD0603-Z3 is obsolete. Substitute options CZRU52C3, CZRU52C3-HF, CZRUR52C3, and CZRUR52C3-HF are active products, ROHS3 compliant, have MSL 1 (unlimited), and are REACH unaffected. These models meet all environmental and compliance certifications, satisfying standard requirements for substitution.

Frequently Asked Questions (FAQ)

Q1: What are the essential substitution criteria for the CD0603-Z3 Zener diode?
A1: Substitution criteria include matching nominal Zener voltage (3 V), tolerance (±5%), maximum power (150 mW), impedance (95 Ohms), reverse leakage current (50 µA @ 1 V), operating temperature (-55°C to 125°C), surface mount compatibility, equivalent SMD package, and matching compliance (RoHS, REACH, MSL).

Q2: Are the CZRU52C3 series packages compatible with the original CD0603-Z3?
A2: Substitute parts use 2-SMD, No Lead packages with 0603/SOD-523F footprint, which are within the 0603 category, aligning with standard surface-mount assembly techniques.

Q3: Why must a substitute be chosen for the CD0603-Z3?
A3: The CD0603-Z3 is obsolete and no longer supplied as a new original component. Substitution is necessary to maintain supply chain reliability and ensure ongoing product manufacturing.

Q4: Are there any differences in compliance or environmental status between the CD0603-Z3 and substitutes?
A4: All substitutes are ROHS3 compliant, REACH unaffected, and MSL 1 (unlimited), identical to the original part's certifications.

Q5: Does adopting any of these substitute parts affect electrical performance or application fit?
A5: Based on the specified parameters, substitutes match all electrical characteristics and package form, supporting direct replacement in existing designs.