DDZ8V2CSF-7 Equivalent & Substitute Parts

Part Overview

The DDZ8V2CSF-7 is an active-status Zener diode manufactured by Diodes Incorporated, rated at 8.24 V nominal with 500 mW maximum power dissipation in a surface-mount SOD-323F package. This component is designed for voltage regulation and protection applications requiring precise Zener voltage characteristics in compact form factors. Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances and mechanical compatibility constraints of the application.

Substiute Parts

DDZ8V2CSF-7

Diodes IncorporatedIn Stock: 9142DDZ8V2CSF-7 Datasheet

Current PartRFQ

BZT52C8V2S-TP

Micro Commercial CoIn Stock: 2182BZT52C8V2S-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DDZ8V2CSF-7 is determined by the following critical parameters:

Zener Voltage Compatibility: The nominal Zener voltage must fall within the application tolerance window. The DDZ8V2CSF-7 operates at 8.24 V with ±3% tolerance. Substitute parts with Zener voltages in the 8.0 V to 8.5 V range may be evaluated based on circuit requirements.

Power Dissipation Rating: The maximum power rating of 500 mW establishes the thermal capability. Substitute parts with lower power ratings (such as 200 mW) are acceptable only when circuit design ensures power dissipation remains within the substitute part's maximum rating.

Package Compatibility: Both SOD-323F and SOD-323 packages are mechanically compatible for surface-mount applications, as they share identical footprint dimensions and lead configurations.

Electrical Characteristics: Forward voltage, reverse leakage current, and impedance must be evaluated within the context of the specific application circuit to ensure functional equivalence.

Compliance & Status: All substitute parts must maintain active product status and ROHS3 compliance to ensure long-term availability and regulatory conformance.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration - Power Dissipation: The BZT52C8V2S-TP substitute part is rated at 200 mW maximum power, compared to 500 mW for the DDZ8V2CSF-7. Selection of this substitute is limited to applications where circuit design ensures power dissipation does not exceed 200 mW. Applications requiring the full 500 mW capability must retain the DDZ8V2CSF-7.

Voltage Tolerance: The DDZ8V2CSF-7 provides ±3% tolerance on Zener voltage, while the BZT52C8V2S-TP provides ±6% tolerance. Applications with strict voltage regulation requirements may require the tighter tolerance of the main part.

Compliance & Availability: Both parts maintain active product status, ROHS3 compliance, and unlimited moisture sensitivity rating (MSL 1), ensuring regulatory conformance and long-term supply continuity.

Package Compatibility: The SOD-323 package of the substitute part is mechanically compatible with SOD-323F footprints on printed circuit boards, allowing direct substitution without layout modification.

Frequently Asked Questions (FAQ)

Q: Can the BZT52C8V2S-TP directly replace the DDZ8V2CSF-7 in all applications?

A: Direct replacement is limited by power dissipation rating. The BZT52C8V2S-TP is rated at 200 mW maximum, while the DDZ8V2CSF-7 is rated at 500 mW. Substitution is valid only when circuit analysis confirms power dissipation remains below 200 mW. Applications requiring higher power dissipation must use the DDZ8V2CSF-7.

Q: What is the difference between SOD-323F and SOD-323 packages?

A: Both packages share identical footprint dimensions and lead configurations for surface-mount applications. The designations reflect minor manufacturing variations. Both are mechanically compatible for PCB assembly without layout changes.

Q: How do the voltage tolerances affect circuit performance?

A: The DDZ8V2CSF-7 maintains ±3% tolerance on the 8.24 V nominal voltage, resulting in a range of 7.99 V to 8.49 V. The BZT52C8V2S-TP maintains ±6% tolerance on the 8.2 V nominal voltage, resulting in a range of 7.71 V to 8.69 V. Applications with voltage regulation requirements tighter than ±6% require the main part.

Q: Are both parts RoHS compliant?

A: Yes. Both the DDZ8V2CSF-7 and BZT52C8V2S-TP are ROHS3 compliant and carry unlimited moisture sensitivity rating (MSL 1), meeting current regulatory requirements for electronic component procurement.

Q: What is the impedance difference between these parts?

A: The DDZ8V2CSF-7 has a maximum impedance of 30 Ohms, while the BZT52C8V2S-TP has a maximum impedance of 15 Ohms. Lower impedance in the substitute part results in better voltage regulation characteristics under load variations.

Q: Can the substitute part handle the same reverse leakage specifications?

A: The reverse leakage specifications are measured at different voltages. The DDZ8V2CSF-7 specifies 7.5 µA at 7.63 V, while the BZT52C8V2S-TP specifies 700 nA at 5 V. Direct comparison requires evaluation within the specific application circuit operating conditions.