CD1005-Z18 Equivalent & Substitute Parts Reference

Part Overview

CD1005-Z18 is a Zener diode manufactured by Bourns Inc., classified under the Diodes, Zener category. It features an 18 V nominal Zener voltage, 200 mW maximum power dissipation, ±5% tolerance, and is supplied in a Surface Mount 1005 (2512 Metric) package. This part has reached obsolete status, necessitating the identification of alternative models with matching electrical and mechanical parameters to fulfill existing designs and inventory requirements.

Substiute Parts

CD1005-Z18

Bourns Inc.In Stock: 1201CD1005-Z18 Datasheet

Current PartRFQ

CZRF52C18

Comchip TechnologyIn Stock: 1006CZRF52C18 Datasheet

DirectRFQ

CZRF52C18-HF

Comchip TechnologyIn Stock: 1074CZRF52C18-HF Datasheet

DirectRFQ

CZRFR52C18

Comchip TechnologyIn Stock: 792CZRFR52C18 Datasheet

Parametric EquivalentRFQ

CZRFR52C18-HF

Comchip TechnologyIn Stock: 977CZRFR52C18-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for CD1005-Z18 are selected strictly based on the following matched parameters: Zener voltage (18 V), tolerance (±5%), maximum power (200 mW), maximum impedance (≤50 Ohms unless otherwise specified), reverse leakage current (≤100 nA at comparable Vr), surface mount configuration, and package/case (1005, 2512 Metric compatibility). Only parts adhering to these electrical and mechanical characteristics, as well as compliance criteria, are considered valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

For replacement of the obsolete CD1005-Z18, select substitute Zener diodes that match all key electrical and mechanical parameters, and ensure compliance with ROHS3 and REACH. All listed alternatives maintain MSL 1 (Unlimited), suitable for standard manufacturing and storage environments. Substitute parts with active product status ensure ongoing availability and supply continuity.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for substituting the CD1005-Z18 Zener diode?
A1: Critical parameters include Zener voltage (18 V), tolerance (±5%), maximum power (200 mW), maximum impedance (≤50 Ohms unless otherwise specified), reverse leakage current (≤100 nA at specified Vr), operating temperature range (-55°C ~ 125°C), surface mount configuration, and 1005 (2512 Metric) package compatibility.

Q2: Can substitute parts be used in the same PCB footprint as CD1005-Z18?
A2: Yes. Each substitute part specifies a Surface Mount 1005 (2512 Metric) package, compatible with the original CD1005-Z18 pad layout.

Q3: How is compliance ensured for substitute Zener diodes?
A3: All listed alternatives carry ROHS3 Compliant and REACH Unaffected status, with MSL rating of 1 (Unlimited), meeting the same environmental and manufacturing requirements as the original part.

Q4: Are there differences in product status between the main and substitute parts?
A4: CD1005-Z18 is classified as obsolete; substitute parts are marked as active, supporting replenishment and ongoing procurement for new and current designs.

Q5: What is the significance of the impedance and reverse leakage parameters in substitution?
A5: Impedance and reverse leakage directly affect voltage regulation and circuit leakage performance. All substitute parts meet specified impedance and leakage current ratings within the provided parameters.