CDLL4614E3 Equivalent & Substitute Parts

Part Overview

The CDLL4614E3 is an active Zener diode manufactured by Microchip Technology, classified as a voltage regulator component in the Diodes, Zener category. This surface mount device operates at a nominal Zener voltage of 1.8 V with a maximum power dissipation of 500 mW, housed in a DO-213AA package. The component is ROHS3 compliant and REACH unaffected, making it suitable for modern electronic applications requiring regulated voltage references. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and continuity of supply for applications utilizing this Zener diode specification.

Substiute Parts

CDLL4614E3

Microchip TechnologyIn Stock: 1148CDLL4614E3 Datasheet

Current PartRFQ

CDLL4614

Microchip TechnologyIn Stock: 1065CDLL4614 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDLL4614E3 is determined by strict equivalence across the following critical parameters:

• Nominal Zener Voltage (Vz): 1.8 V
• Voltage Tolerance: ±5%
• Maximum Power Dissipation: 500 mW
• Maximum Impedance (Zzt): 1200 Ohms
• Forward Voltage (Vf): 1.1 V @ 200 mA
• Operating Temperature Range: -65°C to 175°C
• Package Type: DO-213AA surface mount

The CDLL4614 meets all parametric requirements for direct substitution. Both parts share identical electrical specifications for Zener voltage, power rating, impedance, forward voltage characteristics, and thermal operating range. The DO-213AA package ensures mechanical and thermal compatibility. Substitution is valid based on these electrical and mechanical parameters alone.

Parameter Comparison

Engineering Selection Recommendations

Both the CDLL4614E3 and CDLL4614 are active products from Microchip Technology with identical electrical and mechanical specifications. The primary distinction is regulatory compliance status.

The CDLL4614E3 carries ROHS3 compliance certification, making it the preferred selection for applications subject to Restriction of Hazardous Substances directives or requiring compliance documentation for modern electronic equipment standards.

The CDLL4614 is RoHS non-compliant and should be selected only when legacy system requirements or specific design constraints mandate its use. Both parts maintain REACH unaffected status and EAR99 export classification.

Selection between these parts is determined by regulatory and compliance requirements applicable to the end application, not by electrical performance or thermal characteristics.

Frequently Asked Questions (FAQ)

Q: Can CDLL4614 replace CDLL4614E3 in new designs?

A: Electrical and mechanical substitution is valid. However, CDLL4614E3 is recommended for new designs due to ROHS3 compliance. CDLL4614 should be used only when legacy compliance requirements apply.

Q: Are the electrical characteristics identical between these parts?

A: Yes. Both parts share identical nominal Zener voltage (1.8 V), tolerance (±5%), maximum power (500 mW), impedance (1200 Ohms maximum), forward voltage (1.1 V @ 200 mA), and operating temperature range (-65°C to 175°C).

Q: What is the difference in reverse leakage current?

A: CDLL4614E3 specifies 7.5 µA @ 1 V, while CDLL4614 specifies 3.5 µA @ 1 V. Both values fall within acceptable operating parameters for this device class. Selection based on leakage current alone is not a substitution criterion.

Q: Are both parts available in the same package?

A: Yes. Both CDLL4614E3 and CDLL4614 are housed in DO-213AA surface mount packages with identical mechanical and thermal characteristics.

Q: What compliance certifications apply to each part?

A: CDLL4614E3 is ROHS3 compliant and REACH unaffected. CDLL4614 is RoHS non-compliant but REACH unaffected. Both carry EAR99 export classification.

Q: Can these parts be used interchangeably in existing assemblies?

A: Electrical and mechanical interchangeability is confirmed. Compliance documentation requirements for the end application determine whether substitution is acceptable in production or field replacement scenarios.