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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V SOT323
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT),Cut Tape (CT)
- Resistors Included：R2 Only
- Transistor Type：PNP - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：-
- Resistor - Emitter Base (R2)：22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：56 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max)：500nA (ICBO)
- Frequency - Transition：250 MHz
- Power - Max：200 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-70, SOT-323
- Supplier Device Package：SOT-323
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Overview
The DDTA124GUA-7-F is a PNP pre-biased small signal surface mount transistor from Diodes Incorporated, featuring an epitaxial planar die construction in an SOT-323 package. It integrates a single built-in biasing resistor (R2) with a nominal value of 22 kΩ. The device supports a collector-emitter voltage (VCEO) of -50 V and a continuous collector current (IC) of -100 mA, with a power dissipation rating of 200 mW. Electrical characteristics include a DC current transfer ratio (hFE) minimum of 56 at IC = -5 mA and VCE = -5 V, and a gain-bandwidth product (fT) of 250 MHz. Operating temperature ranges from -55°C to +150°C.
Feature Summary
- Integrates a single built-in biasing resistor (R2 only) to simplify circuit design and reduce component count.
- Utilizes epitaxial planar die construction for reliable performance in surface mount applications.
- Provides complementary NPN types within the same series for flexible design options.
Applications
- Switching applications requiring simplified base drive circuits.
- Driver circuits for low-power loads where space constraints favor compact SOT-323 packaging.
- General-purpose digital logic interfacing using pre-biased transistor configurations.
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm packaging details, as variations may exist between tape & reel quantities. Ensure compliance with RoHS and lead-free requirements by checking the manufacturing date code, as green molding compound usage applies to products manufactured from week 27, 2006 onwards. Confirm availability through authorized distributors, noting that older stock may differ in material composition.
Selection Notes
Select this component when a PNP pre-biased transistor with a single emitter resistor is required. The 22 kΩ internal resistor value suits moderate input impedance needs. Compare hFE and VCE(sat) specifications against load requirements. Consider the SOT-323 footprint for PCB layout compatibility. Verify thermal resistance limits if operating near maximum power dissipation ratings.
Part Context
This part belongs to the DDTA(R2-only Series) UA family from Diodes Incorporated. It shares the SOT-323 case outline and general electrical characteristics with other members like DDTA114GUA and DDTA144GUA, distinguished primarily by the nominal value of the integrated R2 resistor. The 'UA' suffix denotes the SOT-323 package type.
Replacement Considerations
Direct substitutes within the same series include DDTA114GUA-7-F (10 kΩ R2), DDTA144GUA-7-F (47 kΩ R2), and DDTA115GUA-7-F (100 kΩ R2). For NPN polarity requirements, consider the complementary DDTC series devices such as DDTC124EUAQ-7-F, ensuring pinout compatibility and matching electrical ratings.
