CDLL4617/TR Equivalent & Substitute Parts

Part Overview

The CDLL4617/TR is a Zener diode voltage regulator manufactured by Microchip Technology, classified as a surface mount component in the DO-213AA package. This device functions as a voltage regulation element with a nominal Zener voltage of 2.4 V and maximum power dissipation of 500 mW. The part is currently in active production status with 774 units in stock. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when alternative sourcing is required.

Substiute Parts

CDLL4617/TR

Microchip TechnologyIn Stock: 809CDLL4617/TR Datasheet

Current PartRFQ

1N4617UR/TR

Microchip TechnologyIn Stock: 12891N4617UR/TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDLL4617/TR is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part 1N4617UR/TR qualifies as a parametric equivalent based on the following criteria:

Electrical Parameter Equivalence:

• Nominal Zener voltage: 2.4 V (identical)
• Voltage tolerance: ±5% (identical)
• Maximum power dissipation: 500 mW (identical)
• Maximum impedance: 1400 Ohms (identical)
• Reverse leakage current: 1 µA @ 1 V (identical)
• Forward voltage: 1.1 V @ 200 mA (identical)
• Operating temperature range: -65°C to 175°C (identical)

Mechanical Parameter Equivalence:

• Package type: DO-213AA (identical)
• Mounting configuration: Surface Mount (identical)
• Packaging format: Tape & Reel (TR) (identical)

Both parts are manufactured by Microchip Technology and maintain active product status. The substitute part demonstrates complete parametric alignment with the primary part across all specified electrical characteristics and physical form factors, enabling direct substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the CDLL4617/TR and 1N4617UR/TR are active production components manufactured by Microchip Technology with identical electrical specifications and mechanical packaging. Selection between these parts is based on inventory availability and supply chain requirements rather than technical performance differences.

CDLL4617/TR is suitable for applications requiring the primary part number designation, with 774 units currently in stock.

1N4617UR/TR serves as a direct parametric equivalent with 1203 units in stock, providing enhanced procurement flexibility and supply assurance. Both parts comply with RoHS3 and REACH regulations, with EAR99 export classification and HTSUS code 8541.10.0050.

The substitute part maintains identical compliance certifications and regulatory status, enabling seamless integration into existing designs without circuit modification or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can 1N4617UR/TR be used as a direct replacement for CDLL4617/TR?

A: Yes. The 1N4617UR/TR is a parametric equivalent with identical electrical characteristics (2.4 V nominal Zener voltage, 500 mW power rating, ±5% tolerance) and mechanical specifications (DO-213AA package, surface mount configuration). Direct substitution is supported without circuit redesign.

Q: Are there differences in package or mounting between these parts?

A: No. Both parts use the DO-213AA surface mount package and are supplied in Tape & Reel (TR) format. Physical dimensions, lead configuration, and PCB mounting requirements are identical.

Q: What is the operating temperature range for both parts?

A: Both the CDLL4617/TR and 1N4617UR/TR operate across the temperature range of -65°C to 175°C, supporting applications in industrial and extended-temperature environments.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0050. Regulatory status and export classification are identical.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by equivalence in nominal Zener voltage (2.4 V), power dissipation (500 mW), voltage tolerance (±5%), impedance (1400 Ohms maximum), reverse leakage current (1 µA @ 1 V), and forward voltage (1.1 V @ 200 mA). All parameters must match exactly for direct substitution.

Q: Which part should be selected based on inventory considerations?

A: The 1N4617UR/TR offers higher inventory availability with 1203 units in stock compared to 774 units of the CDLL4617/TR. Selection should be based on procurement lead time requirements and supply chain strategy.