onsemi BZX84C5V6_D87Z

Overview

BZX84C5V6_D87Z from ON Semiconductor (formerly Fairchild) is a 5.6 V ±5% Zener diode in SOT-23 package, rated for 250 mW power dissipation at 25°C ambient, with 40 Ω dynamic impedance at 5 mA test current and 1 µA maximum reverse leakage at 2.0 V. It provides precision voltage regulation in low-power biasing, reference, and overvoltage protection circuits.

For engineers reviewing the BZX84C5V6_D87Z datasheet, pinout, applications, or equivalent options, key selection criteria include its tight 5.6 V nominal zener voltage, low 40 Ω impedance at 5 mA, temperature coefficient of –2.0 mV/°C, and compatibility with standard SOT-23 PCB footprints for space-constrained designs.

Technical Context

This device operates as a silicon planar Zener diode optimized for stable voltage reference generation in linear regulators, sensor excitation, and analog signal conditioning. Its design targets low-current operation (1–20 mA), with specified performance at I_Z = 1.0 mA, 5.0 mA, and 20 mA test points.

The BZX84C5V6_D87Z exhibits a negative temperature coefficient (–2.0 mV/°C at 5 mA), enabling predictable drift compensation in temperature-sensitive references. Its 200 pF capacitance at 0 V reverse bias supports high-frequency noise filtering in mixed-signal supply rails.

Key Specifications

Pinout & Package

Package: SOT-23 (TO-236AB), surface-mount, 3-terminal plastic package with cathode marked by band. Dimensions: 2.9 mm × 1.3 mm × 1.0 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5232BS-7-F and 1SMA5919BT3G, the BZX84C5V6_D87Z offers optimal balance of SOT-23 compactness, 250 mW rating, and 40 Ω impedance at 5 mA-making it ideal for space-constrained, low-to-moderate current reference and protection roles where board real estate is premium.

Availability

BZX84C5V6_D87Z is available at Aetrix Electronics and suitable for power supply reference, sensor excitation, overvoltage clamp, and ADC input protection applications requiring stable component supply and consistent parametric performance across production lots.

Supply support for BZX84C5V6_D87Z 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

ON Semiconductor is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The BZX84C5V6_D87Z belongs to the BZX84C series of general-purpose Zener diodes designed specifically for cost-effective, high-volume voltage regulation and protection in consumer, computing, and industrial electronics.

FAQ

What is the nominal zener voltage of the BZX84C5V6_D87Z?

The BZX84C5V6_D87Z has a nominal zener voltage of 5.6 V, with a guaranteed range of 5.2 V to 6.0 V at 5 mA test current. This value is defined per the "C" tolerance grade (±5%) and is confirmed in the Electrical Characteristics table of the official ON Semiconductor datasheet Rev. 1.10. The BZX84C5V6_D87Z maintains this specification across its qualified operating junction temperature range of –55°C to +150°C.

What is the maximum power dissipation for the BZX84C5V6_D87Z?

The BZX84C5V6_D87Z is rated for 250 mW power dissipation when mounted on an FR-4 PCB at 25°C ambient temperature. This rating assumes standard JEDEC test conditions (board size 76.2 mm × 114.3 mm). Derating is required above 25°C ambient per the R_JA value of 465°C/W. The BZX84C5V6_D87Z must not exceed this limit to ensure reliable long-term operation and avoid junction overheating.

Does the BZX84C5V6_D87Z have a positive or negative temperature coefficient?

The BZX84C5V6_D87Z has a negative temperature coefficient of –2.0 mV/°C at 5 mA zener current. This means its zener voltage decreases by approximately 2.0 mV for every 1°C rise in junction temperature. This behavior is documented in the Electrical Characteristics table under "DVZ / Dt at 5.0 mA" and is consistent across the 5.1 V to 6.2 V variants in the BZX84C family. The BZX84C5V6_D87Z's tempco enables predictable drift modeling in temperature-critical references.

What is the reverse leakage current specification for the BZX84C5V6_D87Z?

The BZX84C5V6_D87Z specifies a maximum reverse leakage current (I_R) of 1 µA at V_R = 2.0 V and T_A = 25°C. This parameter is measured under controlled conditions and ensures minimal parasitic current draw in high-impedance reference or protection nodes. The BZX84C5V6_D87Z meets this spec across its full storage temperature range (–55°C to +150°C), supporting robust performance in harsh environments.

Is the BZX84C5V6_D87Z compatible with standard SOT-23 assembly processes?

Yes, the BZX84C5V6_D87Z uses the industry-standard SOT-23 (TO-236AB) package with 1.9 mm lead pitch and defined land pattern dimensions. It is fully compatible with automated pick-and-place equipment and standard lead-free reflow profiles (per J-STD-020). The BZX84C5V6_D87Z's cathode marking (band) and pin 1 orientation align with IPC-7351 recommendations, ensuring reliable placement and solder joint integrity in high-yield manufacturing.