Equivalent & Substitute Parts Reference for CDLL4122 Zener Diode

Part Overview

The CDLL4122 is a Zener diode designed for precise voltage regulation and protection applications. It features a nominal Zener voltage of 36 V, a maximum power dissipation of 500 mW, and is housed in a DO-213AA surface-mount package. This product is currently active and available in bulk packaging. Identifying alternative models is necessary for scenarios where supply chain constraints, compliance requirements, or additional qualification standards must be met, ensuring continuous availability and compatibility in engineering designs.

Substiute Parts

CDLL4122

Microchip TechnologyIn Stock: 961CDLL4122 Datasheet

Current PartRFQ

JANTX1N4122UR-1

Microchip TechnologyIn Stock: 1095JANTX1N4122UR-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDLL4122 Zener diode have been identified exclusively using explicit electrical, mechanical, and compliance parameters. The core substitution logic is based on matching the following critical characteristics: Zener voltage, tolerance, power rating, impedance, maximum reverse leakage current, maximum forward voltage, operating temperature range, mounting style, and package type. Only models meeting these parameters are presented as valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both CDLL4122 and JANTX1N4122UR-1 are active products with RoHS non-compliant status, unlimited moisture sensitivity level, and unaffected REACH status. The substitute JANTX1N4122UR-1 maintains all critical parametric matches and adds military qualification under MIL-PRF-19500/435, which can be relevant for applications requiring QPL or defense standards. Selection between these parts should be based on application-specific compliance and qualification requirements.

Frequently Asked Questions (FAQ)

Q1: Which parameters must match for a valid Zener diode substitute in this category?
A1: Substitutes must align on Zener voltage, tolerance, power rating, impedance, maximum reverse leakage current, forward voltage, operating temperature range, mounting type, and package/case.

Q2: Is the DO-213AA package required for all substitutes?
A2: Yes, only Zener diodes with the DO-213AA surface-mount package are considered valid substitutes for CDLL4122.

Q3: Can a substitute part be used if it has a lower reverse leakage specification?
A3: Yes, a lower maximum reverse leakage current is within acceptable substitution parameters, provided all other specifications match.

Q4: Are there compliance differences between CDLL4122 and JANTX1N4122UR-1?
A4: Both are RoHS non-compliant and REACH unaffected. JANTX1N4122UR-1 includes military grade and MIL-PRF-19500/435 qualification.

Q5: How does mounting type affect substitution?
A5: Only surface-mount components matching the DO-213AA package are compatible substitutes for this application.