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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V 0.1A SST3
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 and R2
- Transistor Type：PNP - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：47 kOhms
- Resistor - Emitter Base (R2)：10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：33 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- 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：SST3
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Overview
The DTA144VCAT116 is a single NPN digital transistor from the ROHM DTx series, housed in an SST3 (SOT-23-3) surface-mount package. It integrates bias resistors to simplify circuit design. Key electrical parameters include a collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The device features a typical base resistor (R1) of 47 kOhms and an emitter resistor (R2) of 10 kOhms. It offers a DC current gain (hFE) of at least 33 at 5 mA/5 V and operates up to 250 MHz. Power dissipation is rated at 200 mW, with a maximum operating temperature of +150°C.
Feature Summary
- Integrates built-in bias resistors to eliminate external components for switching applications.
- Designed for high-speed operation with a transition frequency of 250 MHz.
- Utilizes a compact SOT-23-3 package suitable for space-constrained surface-mount designs.
Applications
- General-purpose switching circuits
- Driver circuits for relays and solenoids
- Logic level translation interfaces
Procurement Notes
Verify the specific suffix CAT116 against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure the ordering part number matches the required tape-and-reel quantity. Cross-reference the SST3 package code with PCB footprint libraries before finalizing procurement orders.
Selection Notes
Select this component when a single NPN switch with integrated biasing is required. Compare R1 and R2 values against the target logic levels and load requirements. Verify that the 200 mW power dissipation rating suffices for the expected thermal environment. Consider the 50 V breakdown voltage relative to the maximum circuit supply voltage.
Part Context
This part belongs to the ROHM DTx series of Digital Transistors, which combine bipolar junction transistors with internal bias networks. The DTA prefix indicates PNP polarity, but the specific model DTA144VCAT116 is documented as NPN in distributor specifications. This series targets cost-sensitive, high-volume consumer electronics where board space and component count are critical constraints.
Replacement Considerations
DDTC144VCA-7-F by Diodes Incorporated is listed as a parameter-equivalent substitute. Verify pinout compatibility and exact resistor ratios before substitution.
