DDTC123JKA-7-F

Overview

The DDTC123JKA-7-F is a single NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It integrates bias resistors within an SOT-23 package to simplify circuit design. Key electrical parameters include a maximum collector current of 100 mA, a power dissipation rating of 200 mW, and a minimum DC current gain (hFE) of 80. The device operates with a typical input resistance of 2.2 kOhms and features a resistor ratio of 0.22. It supports a wide operating temperature range from -55°C to +150°C.

Feature Summary

• Integrates built-in thin-film bias resistors for simplified inverter circuit configuration without external components
• Provides complete isolation between bias resistors to allow negative input biasing and minimize parasitic effects
• Utilizes SOT-23 surface mount packaging for compact board space utilization

Applications

• General-purpose switching applications requiring simple on/off control
• Inverter circuits utilizing integrated biasing
• Low-power digital logic interface buffering

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated distributors or certified partners. Confirm the specific suffix matches the required pre-bias configuration and package type. Request official datasheets and RoHS compliance documentation prior to purchase. Ensure storage conditions adhere to moisture sensitivity level requirements specified in the manufacturing data sheet.

Selection Notes

Select this component when a single NPN transistor with integrated base biasing is required for space-constrained designs. The 2.2 kOhm input resistance suits standard logic drive levels. Consider the 100 mA collector current limit for load requirements. Verify thermal management capabilities given the 200 mW power dissipation constraint in the SOT-23 package.

Part Context

This part belongs to the DDTC series of pre-biased transistors from Diodes Incorporated. It combines an NPN bipolar junction transistor with internal biasing networks. The series offers various resistor combinations to accommodate different drive conditions while maintaining a consistent small-signal form factor suitable for consumer and industrial electronics.

Replacement Considerations

Public records indicate that the DDTC123JKA-7-F variant is obsolete and no longer manufactured. Engineers should consult official substitution guides for compatible active replacements from Diodes Incorporated or equivalent manufacturers offering identical pinouts and electrical characteristics.