Equivalent & Substitute Parts for CDLL4772

Part Overview

The CDLL4772 is a Zener diode from Microchip Technology, specified at 9.1 V nominal Zener voltage, 500 mW power rating, ±5% tolerance, and a DO-213AA surface-mount package. The part is RoHS non-compliant and currently active, available in bulk packaging, and used in voltage regulation and protection applications. Identifying alternative models is necessary to address supply continuity, compliance requirements, or inventory optimization.

Key Parameters

Parameter	CDLL4772
Voltage - Zener (Nom) (Vz)	9.1 V
Tolerance	±5%
Power - Max	500 mW
Impedance (Max) (Zzt)	200 Ohms
Current - Reverse Leakage @ Vr	10 µA @ 6 V
Operating Temperature	-65°C ~ 175°C
Mounting Type	Surface Mount
Package / Case	DO-213AA
Product Status	Active
RoHS Status	RoHS non-compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute (parametric equivalent) parts for the CDLL4772 are identified by strict equivalence across the following key parameters: Zener voltage (Vz), tolerance, maximum power, impedance (Zzt), reverse leakage current, operating temperature range, mounting type, and package/case. Only parts matching these parameters in the same device category and mechanical footprint are included as substitutes.

Parameter Comparison

Parameter	CDLL4772	JANTX1N4103UR-1
Manufacturer	Microchip Technology	Microchip Technology
Voltage - Zener (Nom) (Vz)	9.1 V	9.1 V
Tolerance	±5%	±5%
Power - Max	500 mW	500 mW
Impedance (Max) (Zzt)	200 Ohms	200 Ohms
Current - Reverse Leakage @ Vr	10 µA @ 6 V	500 nA @ 7 V
Operating Temperature	-65°C ~ 175°C	-65°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-213AA	DO-213AA
Product Status	Active	Active
RoHS Status	RoHS non-compliant	RoHS non-compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The CDLL4772 and JANTX1N4103UR-1 are both active, RoHS non-compliant, and REACH unaffected. Either part can be selected based on supply availability or preferred qualification and inventory requirements within these constraints. Both parts are in the same mechanical package and have matching electrical specifications as provided.

Frequently Asked Questions (FAQ)

Q1: Are CDLL4772 and JANTX1N4103UR-1 equivalent in electrical performance?
A1: Both parts have the same Zener voltage, tolerance, power rating, and impedance as provided. These parameters are determined sufficient for substitution within this product category.

Q2: Can the substitute part be used in the same PCB footprint?
A2: Both CDLL4772 and JANTX1N4103UR-1 use the DO-213AA surface-mount package, supporting direct mechanical and layout compatibility.

Q3: How does RoHS or REACH status affect selection?
A3: Both parts are RoHS non-compliant and REACH unaffected. Selection should consider these compliance attributes in accordance with regulatory or application needs.

Q4: Are there any differences in reverse leakage characteristics?
A4: The specified reverse leakage current for CDLL4772 is 10 µA @ 6 V, while for JANTX1N4103UR-1 it is 500 nA @ 7 V. These values are directly from the provided data.

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