1N4737G R0G

Overview

The 1N4737G R0G is a silicon planar power Zener diode manufactured by Taiwan Semiconductor. It operates in the DO-41 glass axial leaded package and provides a nominal Zener voltage of 7.5 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1 W at 25°C ambient temperature. Key electrical characteristics include a maximum dynamic impedance of 4 Ω and a test current of 34 mA. The component supports high-temperature soldering up to 260°C for 10 seconds and features corrosion-resistant external surfaces with pure tin leads.

Feature Summary

• Hermetically sealed double slug type glass construction
• Oxide passivated die for enhanced stability
• Metallurgically bonded internal structure
• Corrosion resistant external surfaces

Applications

• Voltage regulation circuits
• Clipping and wave shaping applications
• Reference voltage sources

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm compliance status and terminal finish specifications. Ensure that the procurement channel provides valid traceability for the DO-41 package variant. Confirm RoHS compliance details directly from the datasheet before finalizing acquisition orders.

Selection Notes

Select this component when a 1 W power rating and 7.5 V reference are required in an axial leaded form factor. The DO-41 glass package offers superior thermal performance compared to plastic alternatives. Verify that the circuit design accommodates the specified 34 mA test current and 4 Ω dynamic impedance for accurate regulation.

Part Context

This part belongs to the 1N47XXG series of 1 Watt Zener Voltage Regulators produced by Taiwan Semiconductor. The series covers a wide voltage range from 3.3 to 56 Volts. The 'G' suffix typically denotes the standard ±5% tolerance version housed in a hermetically sealed glass DO-41 package, distinct from the tighter tolerance 'C' variants.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N4737A or 1N4737 designation in the DO-41 package. Ensure substitute parts match the 1 W power rating, 7.5 V nominal voltage, and ±5% tolerance requirements.