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CDLL5242A Equivalent & Substitute Parts Reference
Part Overview
CDLL5242A is a Zener diode manufactured by Microchip Technology, categorized under Diodes, Zener. It features a nominal Zener voltage of 12 V with a tolerance of ±10%, is RoHS non-compliant, and is supplied in a DO-213AB surface mount package. The product status is active, but sourcing alternate models is sometimes required to address inventory needs, tolerance preferences, or specific compliance requirements. Alternatives must strictly match the provided electrical and mechanical parameters.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CDLL5242A |
| Category | Diodes, Zener |
| Voltage - Zener (Nom) (Vz) | 12 V |
| Tolerance | ±10% |
| Impedance (Max) (Zzt) | 30 Ohms |
| Current - Reverse Leakage @ Vr | 1 µA @ 9.1 V |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 200 mA |
| Operating Temperature | -65°C ~ 175°C |
| Mounting Type | Surface Mount |
| Package / Case | DO-213AB, MELF |
| RoHS Status | RoHS non-compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitute part selection in the Diodes, Zener category is based strictly on the following key parameters: nominal Zener voltage, tolerance, maximum impedance, reverse leakage current at specified voltage, maximum forward voltage at specified current, operating temperature range, mounting type, and package/case. Substitutes listed meet or exceed these criteria with no deviation in supplied details.
Parameter Comparison
| Parameter | Main Part (CDLL5242A) | Substitute (CDLL5242B) |
|---|---|---|
| Manufacturer Part Number | CDLL5242A | CDLL5242B |
| Manufacturer | Microchip Technology | Microchip Technology |
| Category | Diodes, Zener | Diodes, Zener |
| Voltage - Zener (Nom) (Vz) | 12 V | 12 V |
| Tolerance | ±10% | ±5% |
| Impedance (Max) (Zzt) | 30 Ohms | 30 Ohms |
| Current - Reverse Leakage @ Vr | 1 µA @ 9.1 V | 1 µA @ 9.1 V |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 200 mA | 1.1 V @ 200 mA |
| Operating Temperature | -65°C ~ 175°C | -65°C ~ 175°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-213AB, MELF | DO-213AB, MELF |
| RoHS Status | RoHS non-compliant | RoHS non-compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Both CDLL5242A and CDLL5242B are active products in the Diodes, Zener category, supplied in identical DO-213AB packages and exhibiting matched electrical parameters. Neither part is RoHS compliant, and both have a Moisture Sensitivity Level of 1 (unlimited). The substitute CDLL5242B offers a tighter tolerance (±5%) while meeting all other specified requirements and certifications as per provided data.
Frequently Asked Questions (FAQ)
Q1: What criteria are used for substituting Zener diodes in this category?
Substitute selection is based strictly on matching the nominal Zener voltage, tolerance, impedance, reverse leakage current, forward voltage, operating temperature, mounting type, and package/case.
Q2: Are CDLL5242A and CDLL5242B interchangeable in terms of physical footprint?
Both use the DO-213AB, MELF surface mount package and are specified for surface mount applications.
Q3: What are the differences in electrical characteristics between CDLL5242A and its substitute?
All electrical characteristics match except CDLL5242B features a tighter voltage tolerance (±5%) compared to CDLL5242A (±10%).
Q4: Are there any differences in compliance status?
Both diodes are RoHS non-compliant and REACH Unaffected, with MSL 1 (unlimited).
Q5: Is the substitute part suitable for all applications previously supported by the main part?
Based strictly on provided parameters, the substitute matches all critical attributes supplied for direct interchange in applications where these parameters are the determining factors.
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