BZX84C39S-7-F

Overview

The BZX84C39S-7-F is a dual surface mount Zener diode array manufactured by Diodes Incorporated. It features two independent Zener diodes housed in an SOT-363 package with a total power dissipation of 200 mW. The nominal Zener voltage is 39 V, with a tolerance range of 37 V to 41 V at a test current of 2 mA. Maximum Zener impedance is 130 Ω at IZT and 350 Ω at IZK. The device operates within a temperature range of -65°C to +150°C and exhibits a positive temperature coefficient between 33.4 mV/°C and 33.4 mV/°C.

Feature Summary

• Dual configuration providing two isolated Zener channels in a compact footprint
• Planar die construction for stable electrical performance
• Lead-free plating with matte tin finish over Alloy 42 leadframe

Applications

• Voltage reference circuits requiring dual independent rails
• Transient voltage suppression in low-power signal lines
• Biasing networks for analog integrated circuits

Procurement Notes

Verify the specific suffix '-7-F' confirms tape and reel packaging containing 3000 units per reel. Confirm RoHS compliance status as the datasheet notes manufacturing variations based on date codes prior to week 40, 2007. Ensure the ordering part number matches the exact type code 'KYE' for the 39V variant.

Selection Notes

Select this component when dual independent Zener regulation is required in space-constrained designs. The SOT-363 package offers a small outline dimension of 2.2 mm by 1.35 mm. Consider the thermal resistance of 625 °C/W and derating curves if operating near maximum ambient temperatures or high power dissipation levels.

Part Context

This part belongs to the BZX84C series of dual Zener diodes from Diodes Incorporated. The series covers nominal voltages from 2.4 V to 39 V. All variants share the same SOT-363 mechanical case and general electrical characteristics, differing primarily in breakdown voltage and associated impedance values.

Replacement Considerations

Direct substitutes must match the SOT-363 package, 200 mW power rating, and 39 V nominal voltage. Verify that alternative manufacturers provide identical marking codes (KYE) and electrical tolerances to ensure pin compatibility and circuit performance equivalence.