CDLL5245A Equivalent & Substitute Parts Reference

Part Overview

CDLL5245A by Microchip Technology is a Zener Diode classified under Diodes, Zener, with a nominal Zener voltage of 15 V and ±10% tolerance. It features a maximum impedance of 16 Ohms, surface mount capability in a DO-213AB (MELF) package, and an operating temperature range of -65°C to 175°C. This part is currently active in production and is RoHS non-compliant. Identifying alternative models within the same category is necessary for situations where inventory levels, tighter electrical tolerance, or regulatory requirements need to be addressed.

Key Parameters

Parameter	CDLL5245A Value
Voltage - Zener (Nom) (Vz)	15 V
Tolerance	±10%
Impedance (Max) (Zzt)	16 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 11 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 200 mA
Operating Temperature	-65°C ~ 175°C
Mounting Type	Surface Mount
Package / Case	DO-213AB, MELF
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution within the Diodes, Zener category is determined strictly by the following key parameters:

Voltage - Zener (Nom) (Vz)
Tolerance
Impedance (Max) (Zzt)
Current - Reverse Leakage @ Vr
Voltage - Forward (Vf) (Max) @ If
Operating Temperature
Mounting Type
Package / Case
RoHS Status

Substitute candidates conform to these parameters and feature only sanctioned differences per the supplied specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Category	Voltage - Zener (Nom) (Vz)	Tolerance	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	RoHS Status
CDLL5245A	Microchip Technology	Diodes, Zener	15 V	±10%	16 Ohms	100 nA @ 11 V	1.1 V @ 200 mA	-65°C ~ 175°C	Surface Mount	DO-213AB, MELF	RoHS non-compliant
CDLL5245B	Microchip Technology	Diodes, Zener	15 V	±5%	16 Ohms	100 nA @ 11 V	1.1 V @ 200 mA	-65°C ~ 175°C	Surface Mount	DO-213AB, MELF	RoHS non-compliant

Engineering Selection Recommendations

Both CDLL5245A and CDLL5245B are classified as active products, with RoHS non-compliant status and unlimited Moisture Sensitivity Level (MSL 1). Selection between these should be determined by the required electrical tolerance; CDLL5245B offers a more precise ±5% compared to ±10% for CDLL5245A. Compliance and packaging attributes are identical between models as per the provided parameters.

Frequently Asked Questions (FAQ)

Q1: Which key parameters must match for Zener diode substitution in this category?
A1: Substitute selection is governed by Voltage - Zener (Nom), Tolerance, Impedance (Max), Reverse Leakage Current, Forward Voltage, Operating Temperature, Mounting Type, and Package / Case.

Q2: Is package compatibility assured between CDLL5245A and CDLL5245B?
A2: Both parts use the DO-213AB, MELF surface mount package; no dimensional or mechanical differences exist within the provided data.

Q3: Are there differences in compliance or certifications between alternatives?
A3: Both CDLL5245A and CDLL5245B have RoHS non-compliant status, Moisture Sensitivity Level 1, and are REACH unaffected according to supplied parameters.

Q4: How does electrical tolerance impact substitution?
A4: CDLL5245A has a ±10% tolerance; CDLL5245B has ±5%. Selection must be based on the application's required tolerance according to electrical specifications.

Q5: Are there any inventory or product status differences to consider?
A5: Both parts are listed as active products, with inventory levels specified in the parameters. Selection can be made based on immediate availability and electrical tolerance requirements.

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