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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V 0.1A SPT
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Box (TB)
- Resistors Included：R1 Only
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：47 kOhms
- Resistor - Emitter Base (R2)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 5mA
- Current - Collector Cutoff (Max)：500nA (ICBO)
- Frequency - Transition：250 MHz
- Power - Max：300 mW
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：SC-72 Formed Leads
- Supplier Device Package：SPT
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Overview
The DTC144TSATP is an NPN epitaxial planar silicon digital transistor manufactured by ROHM Semiconductor. It integrates bias resistors within a SPT (SC-72) surface-mount package to simplify circuit design. Key electrical parameters include a collector-emitter breakdown voltage of 50V, a continuous collector current of 100mA, and a DC current transfer ratio (hFE) minimum of 60 at IC=1mA. The device features a typical input resistance of 47kΩ and a transition frequency of 250MHz. Maximum power dissipation is rated at 300mW, with an operating junction temperature range from -55°C to +150°C.
Feature Summary
- Built-in bias resistors enable inverter circuit configuration without external input components.
- Thin-film resistor construction provides complete isolation for negative input biasing.
- Design eliminates parasitic effects to improve signal integrity.
Applications
- Inverter circuits
- Interface logic drivers
- General-purpose driver applications
Procurement Notes
Verify the specific suffix 'TP' against official documentation to confirm packaging details such as tape-and-reel specifications or quantity per unit. Confirm RoHS compliance status and ensure the component meets the required environmental standards for the intended deployment environment before finalizing procurement.
Selection Notes
Select this component when a compact SPT package is required for high-density mounting. Ensure the application operates within the 50V collector-emitter voltage limit and 100mA current constraints. Verify that the 47kΩ internal base resistance aligns with the driving source impedance requirements for the target interface logic levels.
Part Context
This part belongs to the ROHM DTC144 series of pre-biased transistors. It utilizes the SPT (SC-72) footprint, which differs physically from the more common SOT-23 or SOT-323 packages found in other variants like the DTC144TUA or DTC144TE. The series shares core electrical characteristics but varies primarily in physical dimensions and thermal dissipation capabilities based on the housing type.
Replacement Considerations
Direct pin-compatible replacements require matching the SPT/SC-72 package geometry. Generic SOT-23 alternatives may fit electrically but will not be mechanically compatible without PCB modification. Consult manufacturer cross-reference lists for verified equivalents.
