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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SC59-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Resistors Included：R2 Only
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：-
- Resistor - Emitter Base (R2)：47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：68 @ 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：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SC-59-3
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Overview
The DDTC144GKA-7-F is an NPN pre-biased small signal surface mount transistor from Diodes Incorporated, housed in an SC-59 package. It features a built-in biasing resistor (R2) with a nominal value of 47 kΩ. Key electrical ratings include a collector-emitter voltage (VCEO) and collector-base voltage (VCBO) of 50 V, a maximum collector current (IC) of 100 mA, and power dissipation (Pd) of 200 mW. The device exhibits a DC current transfer ratio (hFE) of 68 at IC = 5 mA and VCE = 5 V, with a gain-bandwidth product (fT) of 250 MHz.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated single R2 biasing resistor simplifies circuit design
- Lead-free and RoHS compliant manufacturing
- Green molding compound with UL flammability classification 94V-0
Applications
- General-purpose switching applications
- Driver circuits for low-power loads
- Logic interface buffering
Procurement Notes
Verify the specific ordering suffix '-7-F' to confirm tape and reel packaging quantities of 3000 units per reel. Ensure compatibility with SC-59 footprint requirements during PCB layout. Confirm that the 'Green' molding compound specification applies if halogen-free status is required for the application environment.
Selection Notes
Select this component when a compact NPN solution with integrated base resistance is needed. The 47 kΩ internal resistor value suits standard logic level driving. Consider the complementary PNP type (DDTA series) if both polarities are required in the same design space.
Part Context
This part belongs to the DDTC144GKA family of pre-biased transistors. Variants within the series differ primarily by the nominal value of the internal R2 resistor, ranging from 10 kΩ to 100 kΩ. All share the same SC-59 package and electrical characteristics regarding voltage and current ratings.
Replacement Considerations
Direct substitutes must match the SC-59 package, NPN polarity, 50V/100mA ratings, and 47kΩ internal resistor. Verify pinout compatibility as lead configurations may vary between manufacturers.
