CD0603-Z39 Equivalent & Substitute Parts Reference

Part Overview

CD0603-Z39 is a Zener diode manufactured by Bourns Inc., detailed as "DIODE ZENER 39V 150MW 0603" with key specifications including 39 V nominal Zener voltage, ±5% tolerance, 150 mW maximum power, and 0603 (1608 Metric) surface mount package. The product is currently listed as obsolete. Due to the obsolete status and ongoing need for equivalent performance and package compatibility in designs within the Diodes, Zener category, it is necessary to find and qualify alternative part numbers strictly matching the listed electrical, mechanical, and compliance parameters.

Substiute Parts

CD0603-Z39

Bourns Inc.In Stock: 851CD0603-Z39 Datasheet

Current PartRFQ

CZRU52C39

Comchip TechnologyIn Stock: 1068CZRU52C39 Datasheet

DirectRFQ

CZRU52C39-HF

Comchip TechnologyIn Stock: 1054CZRU52C39-HF Datasheet

DirectRFQ

CZRUR52C39

Comchip TechnologyIn Stock: 859CZRUR52C39 Datasheet

DirectRFQ

CZRUR52C39-HF

Comchip TechnologyIn Stock: 750CZRUR52C39-HF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute selection for CD0603-Z39 in the Diodes, Zener product category is determined strictly by matching the following parameters:

• Voltage - Zener (Nom) (Vz): 39 V
• Tolerance: ±5%
• Power - Max: 150 mW
• Impedance (Max) (Zzt): 90 Ohms
• Current - Reverse Leakage @ Vr: 100 nA at comparable reverse voltage
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 0603-compatible or 0603/SOD-523F
• Compliance: ROHS3 Compliant, REACH Unaffected, MSL 1 (Unlimited)

Only parts matching all listed parameters are grouped as substitutes.

Parameter Comparison

Engineering Selection Recommendations

Given the obsolete status of Bourns Inc. CD0603-Z39 and the availability of compliant substitutes, selection should prioritize active status and strict compliance with ROHS3, REACH, and MSL requirements. Substitute parts listed meet the necessary certifications (ROHS3 Compliant, REACH Unaffected, MSL 1 [Unlimited]), and match primary electrical, mechanical, and package specifications. The ECCN and HTSUS codes are also equivalent across the referenced substitute part numbers.

Frequently Asked Questions (FAQ)

Q1: What are the required parameters for substituting CD0603-Z39 in a circuit?
A1: Substitute diodes must match 39 V Zener voltage, ±5% tolerance, 150 mW power rating, 90 Ohm maximum impedance, reverse leakage current of 100 nA at corresponding test voltage, -55°C ~ 125°C operating temperature, surface mount configuration, and 0603 or related package type.

Q2: Are all listed substitutes RoHS and REACH compliant?
A2: All substitutes listed are ROHS3 Compliant and REACH Unaffected, matching the compliance standards of CD0603-Z39.

Q3: Is the mounting type and package fully compatible between CD0603-Z39 and substitute parts?
A3: All substitutes are surface mount and utilize the 0603 or 0603/SOD-523F package formats, falling within allowable mechanical compatibility criteria for typical 0603 footprints.

Q4: Does the change from Bourns Inc. to Comchip Technology affect electrical performance?
A4: Substitute selection is exclusively based on the matched electrical and mechanical parameters; manufacturer difference is not a selection criterion when the listed parameters are fully matched.

Q5: How does product status affect substitute selection?
A5: CD0603-Z39 is classified as obsolete, so only active status parts from the provided list (e.g., CZRU52C39, CZRUR52C39, CZRU52C39-HF, CZRUR52C39-HF) are considered valid substitutes.