Taiwan Semiconductor Corporation BZX85C5V6 R0G

Overview

BZX85C5V6 R0G from Taiwan Semiconductor is a 1.3W, ±5% tolerance, DO-41 packaged Zener diode with nominal zener voltage 5.6V (min 5.2V, max 6.0V), tested at 7mA, dynamic impedance 45Ω at IZT, and leakage current ≤1µA at 2V reverse bias. It serves as a precision voltage reference or low-power voltage stabilizer in DC/DC converters and lighting circuits.

For engineers reviewing the BZX85C5V6 R0G datasheet, BZX85C5V6 R0G pinout, BZX85C5V6 R0G application, or BZX85C5V6 R0G equivalent, key selection criteria include zener voltage tolerance, power dissipation capability, thermal resistance, junction temperature range, and DO-41 mechanical compatibility for through-hole board assembly.

Technical Context

The BZX85C5V6 R0G operates as a single-die, hermetically sealed glass Zener diode optimized for stable reverse-bias regulation under DC or pulsed conditions (10ms test pulse). Its design targets low-noise, repeatable breakdown behavior with tight ±5% VZ tolerance and low dynamic impedance (45Ω) at 7mA test current.

Thermal performance is defined by a junction-to-ambient thermal resistance of 130°C/W and a maximum junction temperature of +200°C, enabling reliable operation in ambient temperatures up to +150°C when derated per thermal curves. The device uses pure tin-plated leads compliant with J-STD-002 solderability standards.

Key Specifications

Pinout & Package

Package: DO-41 axial leaded glass package with cathode band marking; 2.8 mm diameter body, 5.2 mm length, 242 mg weight; RoHS-compliant green compound encapsulation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4734A and MMBZ5232B, the BZX85C5V6 R0G provides superior power handling (1.3W vs 1W/0.35W) and proven thermal robustness in DO-41 form factor, making it optimal for industrial adapters and DC/DC converters requiring long-term stability under thermal stress.

Availability

BZX85C5V6 R0G is available at Aetrix Electronics and suitable for low-voltage stabilizers, on-board DC/DC converters, and lighting applications requiring stable component supply, consistent parametric performance, and RoHS-compliant through-hole assembly.

Supply support for BZX85C5V6 R0G 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.

The BZX85C series is part of TSC's general-purpose Zener diode product line, engineered for high-reliability voltage regulation and reference applications across wide temperature ranges and demanding environmental conditions.

FAQ

What is the exact zener voltage range and test condition for BZX85C5V6 R0G?

The BZX85C5V6 R0G has a guaranteed zener voltage range of 5.2V (min) to 6.0V (max) at 25°C, measured under a 10ms pulse test condition at 7mA (I_ZT). This ±5% tolerance ensures predictable regulation behavior in production designs without binning or trimming.

Is BZX85C5V6 R0G suitable for surface-mount assembly?

No - BZX85C5V6 R0G uses a DO-41 axial leaded glass package designed exclusively for through-hole mounting. It is not compatible with reflow or wave soldering processes intended for SMT components like SOD-123 or SOT-23 packages.

What is the maximum allowable power dissipation for BZX85C5V6 R0G at 70°C ambient temperature?

At 70°C ambient, BZX85C5V6 R0G must be derated using its 130°C/W thermal resistance and +200°C max junction temperature. The allowable power is (200 − 70) / 130 = 1.0 W - below its 1.3W rating at 25°C, ensuring safe long-term operation.

Does BZX85C5V6 R0G have a specified leakage current, and under what condition?

Yes - BZX85C5V6 R0G specifies a maximum leakage current of 1µA at 2V reverse bias (V_R) and 25°C. This low leakage supports high-impedance reference nodes and minimizes standby power loss in battery-critical applications.

How does the DO-41 package of BZX85C5V6 R0G compare to DO-35 in terms of power handling?

The DO-41 package used by BZX85C5V6 R0G supports 1.3W continuous dissipation, whereas DO-35 packages (e.g., 1N4148) are typically rated ≤0.5W. The larger DO-41 body and lead geometry enable higher thermal mass and better heat conduction, critical for sustained Zener operation.