CDLL4773A Equivalent & Substitute Parts Reference

Part Overview

The CDLL4773A is a surface mount Zener diode rated for 9.1 V nominal Zener voltage, 500 mW power dissipation, and ±5% tolerance, supplied in a DO-213AA package. The part is RoHS non-compliant and REACH unaffected, with an operating temperature range of -65°C to 175°C. Although the product is currently active, alternative models may be necessary for applications requiring different compliance series, specific qualifications, or procurement needs.

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
Product Status	Active
RoHS Status	RoHS non-compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitutes are selected based on matching key electrical and mechanical parameters: Zener voltage, tolerance, maximum power dissipation, maximum impedance, reverse leakage current at specified voltages, operating temperature range, mounting type, and package/case. Only parts matching these parameters within the explicit ranges are listed as substitutes.

Parameter Comparison

Manufacturer Part Number	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Operating Temperature	Mounting Type	Package / Case	Product Status	RoHS Status	REACH Status
CDLL4773A	9.1 V	±5%	500 mW	200 Ohms	10 µA @ 6 V	-65°C ~ 175°C	Surface Mount	DO-213AA	Active	RoHS non-compliant	REACH Unaffected
JANTX1N4103UR-1	9.1 V	±5%	500 mW	200 Ohms	500 nA @ 7 V	-65°C ~ 175°C	Surface Mount	DO-213AA	Active	RoHS non-compliant	REACH Unaffected

Engineering Selection Recommendations

Both CDLL4773A and JANTX1N4103UR-1 are active products, RoHS non-compliant, and REACH unaffected. JANTX1N4103UR-1 features military qualification (MIL-PRF-19500/435) and may be suited for applications requiring this certification. The substitute matches all relevant key electrical and mechanical parameters as provided.

Frequently Asked Questions (FAQ)

Q1: Which electrical parameters are essential for Zener diode substitution in this category?
A1: Key electrical parameters include Zener voltage, tolerance, maximum power dissipation, maximum Zener impedance, reverse leakage current at a defined test voltage, and the operating temperature range.

Q2: Is the DO-213AA package a required match for substitutes?
A2: Yes, matching the DO-213AA surface mount package ensures mechanical compatibility and identical mounting requirements.

Q3: Are there any differences in RoHS or REACH compliance between CDLL4773A and its substitute?
A3: Both CDLL4773A and JANTX1N4103UR-1 are RoHS non-compliant and REACH unaffected.

Q4: What certifications are associated with the substitute JANTX1N4103UR-1?
A4: JANTX1N4103UR-1 is qualified to MIL-PRF-19500/435 and is categorized as a military grade component.

Q5: Can reverse leakage current influence the substitutability between these parts?
A5: Reverse leakage current is a key parameter. Both devices specify values under different test conditions, but both values are within the category's range as provided.

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