DDTA124XE-7-F

Overview

The DDTA124XE-7-F is a PNP pre-biased small signal surface mount transistor from Diodes Incorporated, housed in an SOT523 package. It integrates two biasing resistors with nominal values of R1 = 22 kΩ and R2 = 47 kΩ. The device features epitaxial planar die construction and is qualified to AEC-Q101 standards for high reliability. Key electrical parameters include a maximum supply voltage (VCC) of -50 V, a continuous output current (IO) of -100 mA, and a power dissipation (PD) of 150 mW at 25°C ambient temperature. The DC current gain (hFE) has a minimum value of 68 at VO = -5V and IO = -10mA.

Feature Summary

• Integrates dual biasing resistors (R1 ≠ R2) within a single compact surface mount package to reduce board space and simplify circuit design.
• Epitaxial planar die construction ensures robust performance and consistency across manufacturing batches.
• Qualified to AEC-Q101 standards, making the component suitable for demanding automotive and high-reliability applications.
• Manufactured as a totally lead-free, halogen-free, and antimony-free "Green" device compliant with RoHS directives.

Applications

• Automotive electronic systems requiring AEC-Q101 qualified components.
• General-purpose switching circuits utilizing pre-biased transistors.
• Digital logic interface applications where resistor integration simplifies layout.

Procurement Notes

Verify the specific ordering suffix '-7-F' corresponds to the standard 3,000-unit reel packaging configuration. Confirm that the required marking code 'P18' aligns with your assembly tracking requirements. Ensure compliance with the specified moisture sensitivity level (MSL 1) during storage and handling procedures.

Selection Notes

Select this part when a PNP pre-biased transistor with a 22 kΩ base resistor and 47 kΩ emitter resistor is required. Verify that the -50 V supply voltage rating and -100 mA output current capacity meet the circuit demands. Consider the SOT523 footprint constraints and the 150 mW thermal dissipation limits under your operating conditions.

Part Context

This component belongs to the DDTA (R1≠R2 Series) E family of PNP pre-biased transistors. It is the complementary counterpart to the DDTC series NPN types. The device shares the same SOT523 mechanical case and epitaxial planar construction characteristics as other members of this specific product line.

Replacement Considerations

Direct substitutes within the same manufacturer's portfolio include other DDTA124 variants with different resistor ratios, such as DDTA124WE-7-F or DDTA124VE-7-F, provided the resistance values match the circuit requirements. Cross-manufacturer replacements must be verified against the absolute maximum ratings and pinout configuration.