1N4736A Zener Diode 6.8V 1W – Reliable Voltage Regulation

Description

Technical Overview of the 1N4736A Zener Diode 6.8V 1W

The 1N4736A Zener Diode 6.8V 1W is a high-reliability silicon semiconductor engineered for precise voltage regulation and transient suppression. With a nominal Zener voltage of 6.8V, this diode is widely used as a stable voltage reference in power supply circuits and as a safety clamp to protect sensitive components from voltage excursions. Unlike low-power 500mW diodes, the 1-watt rating of this 1N4736A model provides a substantial safety margin, allowing it to handle higher surge currents without thermal failure. At BuyCircuitParts, we supply industrial-standard 1N4736A units to help engineers and hobbyists keep their power management systems cool and “on track.“

Key Specifications and Data Sheet Highlights

To ensure this diode meets your circuit’s requirements, here are the technical parameters of the 1N4736A Zener Diode 6.8V 1W:

• Zener Voltage ($V_z$): 6.8V (Nominal).

• Power Dissipation ($P_d$): 1.0 Watt (1W).

• Tolerance: ±5% (High-precision “A” suffix).

• Package Type: DO-41 (Axial-leaded glass or plastic).

• Zener Impedance ($Z_{zt}$): 3.5 Ohms (at 37mA).

• Reverse Leakage Current: 10µA at 5.0V.

• Operating Junction Temperature: -65°C to +200°C.

Why 6.8V Zeners are Historically Preferred for Stability

In the world of semiconductor physics, Zener diodes with a voltage rating around 6V to 7V, like the 1N4736A Zener Diode 6.8V 1W, are unique. They exhibit a nearly zero temperature coefficient because the Zener effect and the Avalanche effect cancel each other out at this specific voltage level. This makes the 6.8V Zener exceptionally stable across varying temperatures compared to 3.3V or 15V variants. At BuyCircuitParts, we recommend this diode for precision analog circuits where maintaining a constant voltage regardless of ambient temperature is critical for staying “on track.“

Common Applications for the 1N4736A Zener Diode

The 1N4736A Zener Diode 6.8V 1W is an essential component in various electronic architectures:

1. Stable Voltage References: Providing a rock-solid 6.8V reference for Op-Amps and comparator circuits.

2. MOSFET Gate Protection: Clamping the gate-to-source voltage ($V_{gs}$) to prevent oxide breakdown in high-power switching.

3. Relay Control Circuits: Used in series with other components to set specific turn-on thresholds for 12V relays.

4. Battery Charging Systems: Acting as a simple overcharge protection clamp in low-current charging modules.

5. Signal Clipping: Trimming noise and peaks from communication signals in industrial sensors.

Pro-Tips for Circuit Integration

For the most reliable performance from your 1N4736A Zener Diode 6.8V 1W, follow these professional tips:

• Current Limiting: A Zener diode must never be used without a series resistor ($R_s$). Calculate the resistor value using $R_s = (V_{source} – V_z) / I_{total}$ to ensure the diode does not exceed its 1W power limit.

• Bias Direction: For voltage regulation, the diode must be Reverse Biased. Connect the Cathode (the end with the black band) to the positive voltage side.

• Thermal Management: Under heavy load, a 1W diode can dissipate significant heat. When soldering to a PCB, avoid cutting the leads too short; leaving some lead length helps conduct heat away from the glass body.

• Sharp Knee: Our 1N4736A stock is selected for its “sharp knee” characteristic, ensuring it starts regulating precisely at the 6.8V mark with minimal leakage.

Why Buy from BuyCircuitParts?

As a specialized seller, we understand that “bargain” diodes often have inconsistent breakdown voltages or brittle leads. At BuyCircuitParts, our 1N4736A Zener Diode 6.8V 1W stock is sourced from manufacturers with proven quality control tracks. We ensure that every diode features high-purity tinned leads for superior solderability and clear laser-etched markings for easy identification on your workbench. With our fast shipping and technical expertise, we are dedicated to providing the high-quality parts you need to keep your production “on track.“

Durability and Environmental Protection

The 1N4736A Zener Diode 6.8V 1W is housed in a hermetically sealed DO-41 package, providing excellent protection against humidity, oxidation, and chemical contaminants. This makes it ideal for use in industrial control panels, automotive electronics, and outdoor power equipment. By choosing your components from BuyCircuitParts, you are ensuring that your voltage regulation is handled by professional-grade hardware designed for a long operational life.

Approx Dimensions:

Body Length: ~6.3 mm
Diameter: ~2.6 mm
Lead Length: ~25.4 mm

🧊 Note:
Product colour and markings may vary slightly based on manufacturer and batch. Functionality is guaranteed. (Refer to the product image for illustration only. For precise specifications, consult the datasheet.) For more details, check the Zener Diode Datasheet.

Explore more high-quality components like this at BuyCircuitParts, your one-stop shop for all electronic needs.