RN1403,LXHF

Overview

The RN1403,LXHF is a single NPN digital transistor manufactured by Toshiba Semiconductor and Storage. It integrates an NPN bipolar junction transistor with internal biasing resistors in a compact S-Mini (SSM-3) surface-mount package. Key electrical specifications include a collector-emitter breakdown voltage of 50V, a maximum continuous collector current of 100mA, and a transition frequency of 200MHz. The device features typical base and emitter resistors of 22kΩ each, providing a DC current gain (hFE) of at least 70 at 10mA and 5V. It operates within a temperature range up to +150°C and dissipates up to 100mW of power.

Feature Summary

• Integrates NPN transistor with dual biasing resistors for simplified circuit design
• High thermal stability supporting operation up to +150°C
• Compact SSM-3 surface-mount packaging for space-constrained applications

Applications

• Automotive system control circuits requiring AEC-Q200 qualified components
• General-purpose switching applications in consumer electronics
• Interface circuits for microcontrollers and logic gates

Procurement Notes

Verify the specific ordering suffix LXHF against official Toshiba documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with automated pick-and-place equipment requirements for the SSM-3 form factor. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm authenticity and traceability.

Selection Notes

Select this component when a single NPN digital switch with 50V rating and 100mA capacity is required. The integrated 22kΩ resistor network eliminates external biasing components. Consider the 100mW power dissipation limit and SSM-3 thermal characteristics during PCB layout. Verify that the 200MHz transition frequency meets the signal speed requirements of the target application.

Part Context

This part belongs to Toshiba's RN series of pre-biased transistors, which combine BJT functionality with built-in resistors. The RN1403 variant specifically denotes an NPN configuration. The LXHF suffix indicates a specific automotive-grade or high-reliability version packaged in SSM-3, distinct from standard commercial variants like LF.

Replacement Considerations

• RN1403,LF
• RN2103,LXHF(CT)

FAQ

What is the DC current gain (hFE) specification for the RN1403,LXHF?

The minimum DC current gain (hFE) is 70, measured at a collector current of 10mA and a collector-emitter voltage of 5V.

Does the RN1403,LXHF meet automotive reliability standards?

Yes, the LXHF suffix indicates that this component is qualified under the AEC-Q200 standard for passive components, suitable for automotive applications.

What are the internal resistor values in the RN1403,LXHF?

The device includes two integrated resistors: a base resistor (R1) and an emitter resistor (R2), both typically valued at 22kΩ.