Diodes Incorporated BZX84C16S-7

Overview

BZX84C16S-7 from Diodes Incorporated is a dual 200 mW surface-mount Zener diode in SOT-363 package, rated for nominal zener voltage 16 V (15.3–17.1 V at 5 mA), maximum zener impedance 40 Ω at 5 mA, reverse current ≤0.1 µA at 11.2 V, and temperature coefficient +10.4 to +14.0 mV/°C. It serves as precision voltage reference and overvoltage clamp in low-power analog signal conditioning circuits.

For engineers reviewing the BZX84C16S-7 datasheet, BZX84C16S-7 pinout, BZX84C16S-7 application, or BZX84C16S-7 equivalent, key selection criteria include zener voltage tolerance, dynamic impedance at test current, thermal resistance (625 °C/W), reverse leakage at specified VR, and SOT-363 footprint compatibility with high-density PCB layouts.

Technical Context

This device uses planar die construction to ensure stable breakdown characteristics and low noise performance. Its dual-diode configuration in a single SOT-363 package enables compact bidirectional clamping or dual-rail voltage regulation without discrete pairing.

Designed for operation at 25 °C ambient with derating above 25 °C per Fig. 1, it maintains zener regulation across -65 to +150 °C junction temperature range and supports ≤0.9 V forward voltage at 10 mA, enabling use in both forward-biased protection and reverse-biased reference roles.

Key Specifications

Pinout & Package

Package: SOT-363 - ultra-small surface-mount plastic case (2.0–2.2 mm × 1.15–1.35 mm × 0.65 mm height), UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5245BS-7-F and BZX84C15S-7-F, BZX84C16S-7 uniquely delivers dual 16 V Zener functionality in minimal area while balancing regulation accuracy, thermal performance, and leakage - ideal for space-constrained dual-rail or bidirectional clamp designs.

Availability

BZX84C16S-7 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB port protection circuits, automotive power monitoring systems, and medical wearable voltage supervision requiring stable component supply and RoHS-compliant sourcing.

Supply support for BZX84C16S-7 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.

BZX84CxxS belongs to Diodes' standard Zener diode product line, designed specifically for compact, low-power voltage regulation and transient suppression in space-constrained surface-mount applications.

FAQ

What is the maximum continuous power dissipation for BZX84C16S-7 at 70°C ambient?

At 70°C ambient, the device's power dissipation must be derated linearly from 200 mW at 25°C using the 625 °C/W thermal resistance. The allowable power is 200 mW × (1 − (70 − 25)/625) = 140 mW. This ensures junction temperature remains within the −65 to +150 °C operating limit.

Can BZX84C16S-7 be used for bidirectional ESD protection on differential data lines?

Yes - its dual-cathode/anode structure (C1/A1 and A2/C2) enables symmetric clamping between two signal lines. With ≤0.1 µA leakage at 11.2 V and 16 V breakdown, it suppresses transients above ±16 V while preserving signal integrity below that threshold in USB or RS-485 applications.

How does the +10.4 to +14.0 mV/°C temperature coefficient affect voltage reference stability?

This positive coefficient causes the zener voltage to increase ~12.2 mV per °C rise. Over a 100°C range (−40 to +60°C), the shift is ~1.22 V - meaning a 16 V reference may drift to 17.22 V. System-level compensation (e.g., matched NTC network) is required for sub-1% accuracy across wide temperature spans.

Is the SOT-363 package compatible with standard reflow profiles for lead-free assembly?

Yes - the device is qualified for lead-free reflow per J-STD-020D Level 1 moisture sensitivity, with matte tin plating compatible with peak temperatures up to 260°C. Recommended profile follows IPC/JEDEC J-STD-020, including ramp rates ≤3°C/s and time above liquidus of 60–150 s.