CDLL4770A Equivalent & Substitute Parts Reference

Part Overview

The CDLL4770A is a Microchip Technology Zener Diode categorized under Diodes, Zener. It features a nominal Zener voltage of 9.1 V, maximum power dissipation of 500 mW, and is housed in a DO-213AA surface-mount package. The product is active with an operating temperature range of -65°C to 175°C. Engineering requirements may necessitate alternative models to address inventory limitations, regulatory status (RoHS non-compliance), or supply chain continuity.

Key Parameters

Parameter	Value
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
RoHS Status	RoHS non-compliant
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.10.0050

Substitute Part Grouping Explanation

Substitute parts for CDLL4770A are determined by identical or matching electrical and packaging parameters. The following key parameters are required for substitution: Zener voltage, tolerance, maximum power, Zener impedance, leakage current, operating temperature, mounting style, and package/case type. All available substitutes must fall within or meet these explicitly provided limits.

Parameter Comparison

Parameter	CDLL4770A	JANTX1N4103UR-1
Manufacturer	Microchip Technology	Microchip Technology
Category	Diodes, Zener	Diodes, Zener
Packaging	Bulk	Bulk
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
RoHS Status	RoHS non-compliant	RoHS non-compliant
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050

Engineering Selection Recommendations

Both CDLL4770A and JANTX1N4103UR-1 are active products with identical essential electrical and mechanical parameters. Both are supplied in DO-213AA packages, are RoHS non-compliant, and unaffected by REACH, with the same ECCN and HTSUS classifications. JANTX1N4103UR-1 provides military grade and qualification. Selection can be based on inventory levels, qualification status, and identical regulatory compliance without requiring evaluation of unprovided parameters.

Frequently Asked Questions (FAQ)

Q: Can JANTX1N4103UR-1 be used as a direct substitute for CDLL4770A?
A: JANTX1N4103UR-1 matches all provided electrical and mechanical parameters: 9.1 V Zener voltage, ±5% tolerance, 500 mW maximum power, identical Zzt, package type, and mounting.

Q: Are there differences in packaging or mount type between CDLL4770A and JANTX1N4103UR-1?
A: Both devices are surface mount and packaged in DO-213AA.

Q: Do these models have different compliance or qualification attributes?
A: Both are RoHS non-compliant and REACH Unaffected. JANTX1N4103UR-1 includes military grade and qualification information, as provided.

Q: Is the maximum reverse leakage current identical?
A: Maximum reverse leakage current is specified as 10 µA @ 6 V for CDLL4770A and 500 nA @ 7 V for JANTX1N4103UR-1. Both meet or are below typical requirements for this product class.

Q: Do both substitutes remain within the defined operating temperature range?
A: Both are rated for operation from -65°C to 175°C.

Q: Are additional parameters required to determine substitute compatibility?
A: Only the fields explicitly provided and compared here are required for substitute compatibility within this reference.

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