Equivalent & Substitute Parts Reference for CDLL5538A

Part Overview

CDLL5538A is a surface-mount Zener diode manufactured by Microchip Technology, belonging to the category Diodes, Zener. The diode features a nominal Zener voltage of 18 V, 500 mW maximum power dissipation, ±10% tolerance, and a DO-213AB (MELF) package. The product status is Active. Finding suitable alternative models is necessary for cases where parametric matching, inventory availability, compliance status, or mechanical compatibility requirements arise.

Substiute Parts

CDLL5538A
Microchip TechnologyIn Stock: 787CDLL5538A Datasheet
CDLL5538A
Current Part
CDLL4112
Microchip TechnologyIn Stock: 1133CDLL4112 Datasheet
CDLL4112
Parametric Equivalent

Key Parameters

ParameterCDLL5538A Value
Voltage - Zener (Nom) (Vz)18 V
Tolerance±10%
Power - Max500 mW
Impedance (Max) (Zzt)100 Ohms
Current - Reverse Leakage @ Vr10 nA @ 15 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
ECCNEAR99

Substitute Part Grouping Explanation

Substitution is determined strictly by matching key electrical and mechanical parameters in the Diodes, Zener category. These parameters are: Voltage - Zener (Nom), Tolerance, Power - Max, Impedance (Max), Reverse Leakage Current, Forward Voltage, Operating Temperature Range, Mounting Type, and Package / Case. Compliance and environmental status are matched as stated in the product descriptions. Only substitutes that meet all listed parameters are included.

Parameter Comparison

Parameter CDLL5538A CDLL4112
Voltage - Zener (Nom) (Vz) 18 V 18 V
Tolerance ±10% ±5%
Power - Max 500 mW 500 mW
Impedance (Max) (Zzt) 100 Ohms 100 Ohms
Current - Reverse Leakage @ Vr 10 nA @ 15 V 50 nA @ 13.7 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
ECCN EAR99 EAR99

Engineering Selection Recommendations

Both CDLL5538A and CDLL4112 are listed as 'Active' and share similar RoHS non-compliance, MSL 1, and REACH unaffected status. Selection between these diodes in the Zener category should be based on required tolerance, inventory, and identical package compatibility, strictly following the provided compliance status and certification information.

Frequently Asked Questions (FAQ)

Q1: What key parameters ensure compatibility when substituting Zener diodes in the DO-213AB package?
A1: Compatibility is determined by matching Voltage - Zener (Nom), Tolerance, Power - Max, Impedance (Max), Reverse Leakage Current, Forward Voltage, Operating Temperature, Mounting Type, and Package / Case.

Q2: Are CDLL5538A and CDLL4112 electrically interchangeable?
A2: Both share the same Zener voltage, power rating, impedance, forward voltage, operating temperature, mounting type, and package. Tolerance and reverse leakage characteristics should be considered based on application requirements.

Q3: Does RoHS status affect substitution for these Zener diodes?
A3: Both CDLL5538A and CDLL4112 are classified as RoHS non-compliant, maintaining parity for applications where this compliance is relevant.

Q4: Is there a difference in environmental or compliance status?
A4: Both parts are RoHS non-compliant and REACH unaffected, with MSL 1. There is no difference in environmental status provided.

Q5: Should package or mounting type be considered during substitution?
A5: Both components use the DO-213AB (MELF) package and surface-mount type, ensuring direct mechanical compatibility for circuit designs in the Diodes, Zener category.

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