CDLL5242A Equivalent & Substitute Parts Reference

Part Overview

CDLL5242A is a Zener diode manufactured by Microchip Technology, categorized under Diodes, Zener. It features a nominal Zener voltage of 12 V with a tolerance of ±10%, is RoHS non-compliant, and is supplied in a DO-213AB surface mount package. The product status is active, but sourcing alternate models is sometimes required to address inventory needs, tolerance preferences, or specific compliance requirements. Alternatives must strictly match the provided electrical and mechanical parameters.

Substiute Parts

CDLL5242A
Microchip TechnologyIn Stock: 981CDLL5242A Datasheet
CDLL5242A
Current Part
CDLL5242B
Microchip TechnologyIn Stock: 1220CDLL5242B Datasheet
CDLL5242B
Parametric Equivalent

Key Parameters

ParameterValue
Manufacturer Part NumberCDLL5242A
CategoryDiodes, Zener
Voltage - Zener (Nom) (Vz)12 V
Tolerance±10%
Impedance (Max) (Zzt)30 Ohms
Current - Reverse Leakage @ Vr1 µA @ 9.1 V
Voltage - Forward (Vf) (Max) @ If1.1 V @ 200 mA
Operating Temperature-65°C ~ 175°C
Mounting TypeSurface Mount
Package / CaseDO-213AB, MELF
RoHS StatusRoHS non-compliant
Moisture Sensitivity Level (MSL)1 (Unlimited)
REACH StatusREACH Unaffected

Substitute Part Grouping Explanation

Substitute part selection in the Diodes, Zener category is based strictly on the following key parameters: nominal Zener voltage, tolerance, maximum impedance, reverse leakage current at specified voltage, maximum forward voltage at specified current, operating temperature range, mounting type, and package/case. Substitutes listed meet or exceed these criteria with no deviation in supplied details.

Parameter Comparison

Parameter Main Part (CDLL5242A) Substitute (CDLL5242B)
Manufacturer Part Number CDLL5242A CDLL5242B
Manufacturer Microchip Technology Microchip Technology
Category Diodes, Zener Diodes, Zener
Voltage - Zener (Nom) (Vz) 12 V 12 V
Tolerance ±10% ±5%
Impedance (Max) (Zzt) 30 Ohms 30 Ohms
Current - Reverse Leakage @ Vr 1 µA @ 9.1 V 1 µA @ 9.1 V
Voltage - Forward (Vf) (Max) @ If 1.1 V @ 200 mA 1.1 V @ 200 mA
Operating Temperature -65°C ~ 175°C -65°C ~ 175°C
Mounting Type Surface Mount Surface Mount
Package / Case DO-213AB, MELF DO-213AB, MELF
RoHS Status RoHS non-compliant RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

Both CDLL5242A and CDLL5242B are active products in the Diodes, Zener category, supplied in identical DO-213AB packages and exhibiting matched electrical parameters. Neither part is RoHS compliant, and both have a Moisture Sensitivity Level of 1 (unlimited). The substitute CDLL5242B offers a tighter tolerance (±5%) while meeting all other specified requirements and certifications as per provided data.

Frequently Asked Questions (FAQ)

Q1: What criteria are used for substituting Zener diodes in this category?
Substitute selection is based strictly on matching the nominal Zener voltage, tolerance, impedance, reverse leakage current, forward voltage, operating temperature, mounting type, and package/case.

Q2: Are CDLL5242A and CDLL5242B interchangeable in terms of physical footprint?
Both use the DO-213AB, MELF surface mount package and are specified for surface mount applications.

Q3: What are the differences in electrical characteristics between CDLL5242A and its substitute?
All electrical characteristics match except CDLL5242B features a tighter voltage tolerance (±5%) compared to CDLL5242A (±10%).

Q4: Are there any differences in compliance status?
Both diodes are RoHS non-compliant and REACH Unaffected, with MSL 1 (unlimited).

Q5: Is the substitute part suitable for all applications previously supported by the main part?
Based strictly on provided parameters, the substitute matches all critical attributes supplied for direct interchange in applications where these parameters are the determining factors.

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