CDLL4774 Equivalent & Substitute Parts Reference

Part Overview

The Microchip Technology CDLL4774 is a Zener diode designed for surface mount applications, characterized by a nominal Zener voltage of 9.1 V, 500 mW maximum power dissipation, and ±5% tolerance. It is packaged in the DO-213AA case, supporting operating temperatures from -65°C to 175°C. The product is listed as active with bulk packaging availability. Identifying alternative models is essential for instances of inventory limitations, compliance requirements, or military-grade qualification needs, while maintaining compatibility with documented electrical and mechanical characteristics.

Substiute Parts

CDLL4774

Microchip TechnologyIn Stock: 895CDLL4774 Datasheet

Current PartRFQ

JANTX1N4103UR-1

Microchip TechnologyIn Stock: 697JANTX1N4103UR-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for Zener diodes is based strictly on matching the following parameters: Zener voltage (Vz), tolerance, power rating, maximum impedance (Zzt), mounting type, package or case, and operating temperature range. Compliance characteristics such as RoHS and REACH status, as well as qualification or grade, are considered for application-specific compatibility. Substitute parts are included only where all specified parameters are compatible.

Parameter Comparison

Engineering Selection Recommendations

Both CDLL4774 and JANTX1N4103UR-1 are active products with equivalent parametric profiles including voltage, tolerance, power rating, operating temperature, and mechanical form factor. Both parts are RoHS non-compliant and REACH unaffected. JANTX1N4103UR-1 also carries a military grade qualification (MIL-PRF-19500/435) as specified. Engineering selection between these should prioritize inventory, compliance documentation, and qualification standards required by the design application.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for substituting Zener diodes in DO-213AA packaging?
A1: Substitution requires matching Zener voltage, tolerance, power rating, maximum impedance, operating temperature, mounting type, and package/case.

Q2: Can CDLL4774 and JANTX1N4103UR-1 be used interchangeably in all applications?
A2: Both parts share key parameters, but application requirements for military qualification or specific compliance standards must be met as indicated.

Q3: Does the difference in reverse leakage current affect substitution?
A3: Provided the listed leakage specifications, substitution is consistent with matched Zener voltage and power rating.

Q4: How should package or case requirements influence substitute selection?
A4: Both CDLL4774 and JANTX1N4103UR-1 feature identical DO-213AA surface mount packages, ensuring mechanical compatibility.

Q5: How do RoHS and REACH statuses impact selection?
A5: Both substitutes are RoHS non-compliant and REACH unaffected; compliance requirements must be observed for the end product application.