BZX84C20S-7-F

Overview

The BZX84C20S-7-F is a dual surface mount Zener diode manufactured by Diodes Incorporated, housed in an SOT-363 package. It provides a nominal Zener voltage of 20 V with a tolerance range of 18.8 V to 21.2 V at a test current of 5 mA. The device supports a maximum power dissipation of 200 mW and operates within a temperature range of -65°C to +150°C. Electrical characteristics include a maximum Zener impedance of 55 Ω at IZT and 225 Ω at IZK, with a maximum reverse leakage current of 0.1 µA at VR = 14.0 V.

Feature Summary

• Dual configuration integrating two independent Zener diodes within a single ultra-small SOT-363 surface mount package.
• Utilizes planar die construction for robust performance and compatibility with automated assembly processes.
• Manufactured as a lead-free and RoHS compliant component utilizing matte tin finish plating.

Applications

• Voltage reference circuits requiring compact dual-channel regulation.
• Input voltage clamping and protection in signal processing paths.
• Biasing networks for transistor stages in portable electronic devices.

Procurement Notes

Verify the specific ordering suffix matches the required packaging format before procurement. Confirm that the date code aligns with material specifications if halogen-free requirements are critical for the application environment. Ensure the supplier provides traceability documentation consistent with the manufacturer's quality standards.

Selection Notes

Select this component when space constraints necessitate a dual-diode solution in an SOT-363 footprint. Verify that the 200 mW power dissipation rating is sufficient for the expected thermal conditions on the FR4 PCB layout. Check that the 20 V nominal voltage falls within the required operating window for the target circuit design.

Part Context

This part belongs to the BZX84C2V4S through BZX84C39S series of dual Zener diodes from Diodes Incorporated. The series offers various voltage options ranging from 2.4 V to 39 V, all sharing the same mechanical dimensions and electrical testing parameters defined in datasheet DS30108.

Replacement Considerations

Direct substitutes must match the SOT-363 package, 20 V nominal voltage, and dual configuration. Verify pinout compatibility and ensure equivalent power dissipation ratings to maintain thermal performance without redesigning the PCB footprint.