Taiwan Semiconductor Corporation BZX85C6V8 R0G

Overview

BZX85C6V8 R0G from Taiwan Semiconductor is a 1.3W, ±5% tolerance Zener diode with nominal zener voltage 6.8V, tested at 3.5mA, zener impedance 300Ω at IZT, and maximum leakage current 1µA at 4V reverse bias; used for low-voltage stabilization in DC/DC converters and lighting circuits.

For engineers reviewing the BZX85C6V8 R0G datasheet, BZX85C6V8 R0G pinout, BZX85C6V8 R0G application, or BZX85C6V8 R0G equivalent, key selection criteria include zener voltage tolerance, power dissipation capability, thermal resistance, junction temperature range, and DO-41 package compatibility with through-hole PCB assembly.

Technical Context

This discrete Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load or input conditions. It features hermetically sealed glass construction, pure tin-plated leads compliant with J-STD-002, and polarity indicated by cathode band.

Designed for continuous DC operation up to 1.3W at 25°C ambient, its thermal performance is defined by a junction-to-ambient resistance of 130°C/W; junction temperature may reach +200°C, enabling use in industrial environments with elevated ambient temperatures.

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 BZX55C6V8, the BZX85C6V8 R0G delivers 30% higher power rating and lower thermal resistance in the same DO-41 footprint, making it preferred for industrial adapters and DC/DC converter feedback where sustained dissipation and thermal robustness are critical.

Availability

BZX85C6V8 R0G is available at Aetrix Electronics and suitable for low-voltage stabilizers, on-board DC/DC converters, lighting applications, and adapters requiring stable component supply with full RoHS compliance and traceable sourcing.

Supply support for BZX85C6V8 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 belongs to TSC's general-purpose Zener diode product line, engineered for cost-effective, high-reliability voltage reference and regulation in mass-produced power conversion and protection circuits.

FAQ

What is the nominal zener voltage and tolerance of BZX85C6V8 R0G?

The BZX85C6V8 R0G has a nominal zener voltage of 6.8 V with a standard tolerance of ±5%, meaning its actual breakdown voltage falls between 6.4 V and 7.2 V when tested at 3.5 mA. This tolerance is confirmed in the Electrical Specifications table of the official Taiwan Semiconductor datasheet (Version H2301), and applies across the full operating temperature range.

What is the maximum power dissipation and thermal resistance of BZX85C6V8 R0G?

The BZX85C6V8 R0G is rated for 1.3 W maximum power dissipation at 25°C ambient temperature, with a junction-to-ambient thermal resistance (R_θJA) of 130°C/W. Its junction temperature can reach +200°C, allowing operation in high-temperature industrial environments when mounted on adequate copper area or heatsink.

Which package type does BZX85C6V8 R0G use, and what are its key mechanical features?

The BZX85C6V8 R0G uses the DO-41 axial-leaded glass package: 2.8 mm diameter, 5.2 mm body length, cathode band marking, pure tin-plated leads compliant with J-STD-002, and RoHS-compliant green compound encapsulation. Its weight is approximately 242 mg, and it is designed for through-hole mounting and wave soldering.

What is the zener impedance and leakage current specification for BZX85C6V8 R0G?

The BZX85C6V8 R0G exhibits a zener impedance (Z_ZT) of 300 Ω measured at the 3.5 mA test current (I_ZT), and a maximum leakage current (I_R) of 1 µA at 4 V reverse bias (V_R). These values are specified in the Electrical Specifications table and directly impact regulation precision and standby power loss in reference circuits.

Is BZX85C6V8 R0G suitable for automotive or medical applications?

No - Taiwan Semiconductor explicitly states that the BZX85C6V8 R0G is not designed for use in medical, life-saving, or life-sustaining applications. While its +200°C junction rating supports under-hood industrial use, it lacks AEC-Q200 qualification and is intended for general industrial, consumer, and computing power applications per the official product notice.