CDLL4627/TR Equivalent & Substitute Parts

Part Overview

The CDLL4627/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 6.2 V and maximum power dissipation of 500 mW. The component is currently in active production status with 761 pieces available in new original inventory. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when supply chain optimization is required.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	6.2	V
Tolerance	±5	%
Power - Max	500	mW
Impedance (Max)	1200	Ohms
Current - Reverse Leakage @ Vr	5	µA @ 5 V
Voltage - Forward (Vf) (Max) @ If	1.1	V @ 200 mA
Operating Temperature Range	-65 to 175	°C
Mounting Type	Surface Mount
Package / Case	DO-213AA

Substitute Part Grouping Explanation

Substitution of the CDLL4627/TR is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part 1N4627UR/TR qualifies as a parametric equivalent based on the following criteria:

Critical Substitution Parameters:

Nominal Zener voltage: 6.2 V (exact match)
Voltage tolerance: ±5% (exact match)
Maximum power dissipation: 500 mW (exact match)
Maximum impedance: 1200 Ohms (exact match)
Reverse leakage current: 5 µA @ 5 V (exact match)
Forward voltage: 1.1 V @ 200 mA (exact match)
Operating temperature range: -65°C to 175°C (exact match)
Package type: DO-213AA (exact match)
Mounting configuration: Surface Mount (exact match)

Both parts are manufactured by Microchip Technology and maintain identical electrical performance specifications and physical form factors, enabling direct substitution in circuit applications.

Parameter Comparison

Parameter	CDLL4627/TR	1N4627UR/TR	Match
Manufacturer	Microchip Technology	Microchip Technology	Yes
Category	Diodes, Zener	Diodes, Zener	Yes
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Yes
Voltage - Zener (Nom)	6.2 V	6.2 V	Yes
Tolerance	±5%	±5%	Yes
Power - Max	500 mW	500 mW	Yes
Impedance (Max)	1200 Ohms	1200 Ohms	Yes
Current - Reverse Leakage @ Vr	5 µA @ 5 V	5 µA @ 5 V	Yes
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 200 mA	1.1 V @ 200 mA	Yes
Operating Temperature	-65°C ~ 175°C	-65°C ~ 175°C	Yes
Mounting Type	Surface Mount	Surface Mount	Yes
Package / Case	DO-213AA	DO-213AA	Yes
Product Status	Active	Active	Yes
ECCN	EAR99	EAR99	Yes
HTSUS	8541.10.0050	8541.10.0050	Yes

Engineering Selection Recommendations

Both CDLL4627/TR and 1N4627UR/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.

CDLL4627/TR is suitable for applications requiring the primary part number designation, with 761 pieces currently in stock.

1N4627UR/TR provides an equivalent alternative with 961 pieces in inventory, offering increased stock availability. This part carries Moisture Sensitivity Level (MSL) 1 classification, indicating unlimited shelf life without moisture control requirements.

Both components comply with RoHS3 and REACH regulations, with EAR99 export classification and HTSUS code 8541.10.0050. Selection may be determined by procurement lead times, inventory levels, or specific supply chain agreements.

Frequently Asked Questions (FAQ)

Q: Can 1N4627UR/TR be used as a direct replacement for CDLL4627/TR?

A: Yes. Both parts are parametric equivalents with identical Zener voltage (6.2 V), power rating (500 mW), impedance (1200 Ohms), and operating temperature range (-65°C to 175°C). The DO-213AA surface mount package is identical, enabling direct substitution without circuit modification.

Q: Are there differences in electrical performance between these parts?

A: No. The electrical specifications are identical across all measured parameters: nominal Zener voltage, tolerance, maximum power dissipation, impedance, reverse leakage current, and forward voltage characteristics.

Q: What is the significance of the MSL rating on 1N4627UR/TR?

A: The Moisture Sensitivity Level (MSL) 1 classification on 1N4627UR/TR indicates unlimited shelf life without moisture control or baking requirements prior to assembly. This simplifies inventory management and reduces handling constraints.

Q: Are both parts RoHS and REACH compliant?

A: Yes. CDLL4627/TR is RoHS3 compliant and REACH unaffected. 1N4627UR/TR maintains equivalent compliance status. Both parts carry EAR99 export classification.

Q: What is the difference between the part numbers CDLL4627/TR and 1N4627UR/TR?

A: The part numbers represent different manufacturer designations for equivalent Zener diodes. The difference is nomenclature only; electrical and mechanical specifications are identical. Both are manufactured by Microchip Technology.

Q: Can these parts be used interchangeably in production?

A: Yes. Identical electrical parameters, package type, and compliance certifications enable interchangeable use in production environments. Substitution does not require design review or circuit validation.

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