Diodes Incorporated BZX84C2V4S-7-F

Overview

BZX84C2V4S-7-F from Diodes Incorporated is a dual 200 mW surface-mount Zener diode in SOT-363 package, rated for nominal 2.4 V zener voltage (2.2–2.6 V range at 5 mA), 100 Ω dynamic impedance at test current, and -3.5 to 0 mV/°C temperature coefficient. It provides precision voltage reference and overvoltage clamping in space-constrained analog power rails and sensor bias networks.

For engineers reviewing the BZX84C2V4S-7-F datasheet, BZX84C2V4S-7-F pinout, BZX84C2V4S-7-F application, or BZX84C2V4S-7-F equivalent, key selection criteria include zener voltage tolerance, thermal resistance (625 °C/W), reverse leakage (50 µA max at 1.0 V), and SOT-363 dual-diode layout for rail-to-rail protection or dual-reference designs.

Technical Context

This device integrates two independent Zener diodes in a single ultra-small SOT-363 package, enabling bidirectional clamping or dual-voltage referencing without discrete placement. Its planar die construction ensures stable breakdown characteristics across -65 °C to +150 °C operating range.

The 2.4 V nominal zener voltage is specified at 5 mA test current with tight ±0.2 V tolerance (2.2–2.6 V), low 100 Ω zener impedance at I_ZT, and minimal temperature drift (−3.5 to 0 mV/°C), making it suitable for low-voltage regulation where thermal stability and repeatability are critical.

Key Specifications

Pinout & Package

Package: SOT-363 - ultra-small surface-mount plastic case (2.2 mm × 1.35 mm × 0.9 mm), UL 94V-0 rated, moisture sensitivity level 1, lead-free matte tin plating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode applications.

Compared with MMBZ5221BS-7-F and BZX84C2V4LT1G, BZX84C2V4S-7-F uniquely delivers dual 2.4 V Zeners in one SOT-363 package-enabling compact rail-to-rail clamping or matched reference pairs without layout duplication or thermal mismatch.

Availability

BZX84C2V4S-7-F is available at Aetrix Electronics and suitable for industrial sensor biasing, USB port overvoltage clamp, and low-power IoT node regulation requiring stable component supply and RoHS-compliant sourcing.

Supply support for BZX84C2V4S-7-F includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, cost-optimized components for industrial, computing, and consumer markets.

The BZX84 series targets space-constrained voltage reference and protection applications, with the SOT-363 variant specifically engineered for dual-diode integration in miniaturized power management and interface circuits.

FAQ

What is the maximum reverse voltage (V_R) this device can withstand before breakdown?

The BZX84C2V4S-7-F has a nominal zener voltage of 2.4 V, with guaranteed breakdown occurring between 2.2 V and 2.6 V at 5 mA test current. It is not rated for sustained reverse blocking above its zener range; operation above 2.6 V will initiate controlled conduction, not catastrophic failure. The absolute maximum reverse voltage is defined by its power limit: at 200 mW, V_R × I_R ≤ 200 mW.

Can this part be used in place of a single Zener diode in existing SOT-23 designs?

No - the BZX84C2V4S-7-F uses an SOT-363 package with six terminals (including two NC pins), whereas SOT-23 has three pins. Its pinout (C1/A1/A2/C2/NC/NC) is incompatible with SOT-23 footprints and routing. Direct substitution would require PCB redesign and verification of dual-diode interaction in the target circuit.

Is the temperature coefficient linear across the full operating range?

The published temperature coefficient of −3.5 to 0 mV/°C applies at I_ZT = 5 mA and T_J = 25 °C. While the coefficient remains relatively stable from −25 °C to +85 °C, deviation increases near extremes (−65 °C and +150 °C); actual drift should be verified experimentally for precision applications beyond ±25 °C ambient.

Does the "-7-F" suffix indicate tape-and-reel packaging only?

Yes - the "-7-F" suffix denotes 3000-unit tape-and-reel packaging per Diodes Incorporated's ordering nomenclature. It confirms RoHS-compliant, lead-free finish and green compound (for date codes UO and newer). No other packaging formats (e.g., cut tape or tray) are indicated by this suffix; alternate packaging requires different part number variants.