RD4.7M(0)-T1B-A

Single Zener Diodes Overview

The RD4.7M(0)-T1B-A is a single unidirectional voltage regulator diode manufactured by Renesas Electronics Corporation. It utilizes silicon technology and is housed in a plastic SC-59 package with three pins. The device features a nominal Zener voltage of 4.795V and a power dissipation rating of 0.2W. Key electrical specifications include a maximum dynamic impedance of 130 Ω and an operating temperature range up to 150 °C. The component is classified as a Zener diode with a rectangular package shape.

Single Zener Diodes Feature Summary

• Provides stable reference voltage detection capabilities
• Designed for surge absorption applications
• Suitable for supply voltage stabilization in small power supplies

Single Zener Diodes Applications

• Supply voltage stabilization for small power supplies
• Reference voltage detection circuits
• Surge absorption protection

Single Zener Diodes Procurement Notes

Verify the specific suffix (0) against official Renesas documentation to confirm exact electrical tolerances and marking codes, as variations exist within the RD4.7M series. Ensure compliance requirements are checked, as some listings indicate non-RoHS status for certain variants. Confirm the manufacturer source is Renesas Electronics Corporation or authorized design entities to avoid counterfeit components.

Single Zener Diodes Selection Notes

Select this component when a low-power, surface-mount Zener diode is required for precise voltage regulation in compact designs. The SC-59 package offers space efficiency for dense PCB layouts. Consider the 0.2W power rating and 130 Ω dynamic impedance when designing circuits that require moderate regulation accuracy without significant heat dissipation concerns.

Single Zener Diodes Part Context

This part belongs to the RD4.7M series of single Zener diodes from Renesas. These devices are engineered for constant voltage applications, distinguishing them from general-purpose rectifiers. The series is commonly used in industrial and consumer electronics where reliable voltage clamping and reference generation are critical for system stability.

Single Zener Diodes Replacement Considerations

Direct substitutes may include other SC-59 packaged Zener diodes with similar 4.7V ratings and 0.2W power handling. Verify pinout compatibility and thermal characteristics before substitution. Cross-referencing with Renesas' official replacement guides is recommended to ensure functional equivalence.