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Спецификации
| Атрибут | Ценность |
| Supplier | Rohm Semiconductor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Transistor Type | NPN - Pre-Biased |
| Current - Collector(Ic)(Max) | 100 mA |
| Voltage - Collector Emitter Breakdown(Max) | 50 V |
| Resistor - Base(R1) | 4.7 kOhms |
| Resistor - Emitter Base(R2) | 47 kOhms |
| DC Current Gain(h FE)(Min) @ Ic Vce | 80 @ 10mA, 5V |
| Vce Saturation(Max) @ Ib Ic | 300mV @ 250µA, 5mA |
| Current - Collector Cutoff(Max) | 500nA |
| Frequency - Transition | 250 MHz |
| Power - Max | 200 mW |
| Mounting Type | Surface Mount |
Обзор
Description
DTC143ZKAT146 is a digital transistor (NPN) in the DTC family with an integrated base resistor. It lets you drive small loads directly from a microcontroller without needing an external base resistor, simplifying circuits and improving drive consistency.
Key points:
- Built-in base bias resistor, suitable for TTL/CMOS logic levels.
- Used as a low-side switch for loads like LEDs, small relays, or other transistors.
- Package is a small three-pin SMD device; typical pinout: pin 1 = base (through internal resistor), pin 2 = emitter, pin 3 = collector.
- Connecting emitter to ground and the load between Vcc and the collector provides easy switching from a microcontroller output.
Benefits:
- Fewer components, compact PCB, predictable base current, quick switching.
Note:
- Exact electrical specs (max collector current, saturation voltage, gain, and packaging) are variant-specific. Refer to the DTC143ZKAT146 datasheet for precise numbers.
Key points:
- Built-in base bias resistor, suitable for TTL/CMOS logic levels.
- Used as a low-side switch for loads like LEDs, small relays, or other transistors.
- Package is a small three-pin SMD device; typical pinout: pin 1 = base (through internal resistor), pin 2 = emitter, pin 3 = collector.
- Connecting emitter to ground and the load between Vcc and the collector provides easy switching from a microcontroller output.
Benefits:
- Fewer components, compact PCB, predictable base current, quick switching.
Note:
- Exact electrical specs (max collector current, saturation voltage, gain, and packaging) are variant-specific. Refer to the DTC143ZKAT146 datasheet for precise numbers.
Equivalent
DTC143ZKAT146 is an NPN digital transistor with a built‑in base resistor. Common cross-references include ON Semiconductor PDTC143E / PDTC143EU. For an exact match, verify the package (e.g., SOT-23/DIP) and base‑resistor value in the datasheet.
Features
Here are the key features of DTC143ZKAT146:
- NPN digital transistor with built-in base resistor (Rb)
- No external base resistor required
- Logic-level input; can be driven directly from microcontrollers
- Suitable for switching loads (LEDs, small relays, optocouplers)
- Low input current required to turn on
- Small SMD package (SOT-23/3-pin common for DTC parts)
- RoHS compliant; designed for compact, low-power circuits
- Designed for moderate load drive with fast switching (exact Ic/Vce specs in datasheet)
Note: For precise electrical specs (Ic max, Vceo, input resistor value, package details), please consult the official datasheet for DTC143ZKAT146.
- NPN digital transistor with built-in base resistor (Rb)
- No external base resistor required
- Logic-level input; can be driven directly from microcontrollers
- Suitable for switching loads (LEDs, small relays, optocouplers)
- Low input current required to turn on
- Small SMD package (SOT-23/3-pin common for DTC parts)
- RoHS compliant; designed for compact, low-power circuits
- Designed for moderate load drive with fast switching (exact Ic/Vce specs in datasheet)
Note: For precise electrical specs (Ic max, Vceo, input resistor value, package details), please consult the official datasheet for DTC143ZKAT146.
Pinout
Pin count: 6 pins.
Function: DTC143ZKAT146 is a dual NPN digital transistor with built‑in base resistors and a common emitter. It provides two protected switch outputs.
Typical pinout (SOT-23-6):
- Pin 1: IN1
- Pin 2: IN2
- Pin 3: E (common emitter)
- Pin 4: C1 (OUTPUT1)
- Pin 5: C2 (OUTPUT2)
- Pin 6: NC (no connection)
Function: DTC143ZKAT146 is a dual NPN digital transistor with built‑in base resistors and a common emitter. It provides two protected switch outputs.
Typical pinout (SOT-23-6):
- Pin 1: IN1
- Pin 2: IN2
- Pin 3: E (common emitter)
- Pin 4: C1 (OUTPUT1)
- Pin 5: C2 (OUTPUT2)
- Pin 6: NC (no connection)
Manufacturer
Manufacturer: Toshiba Electronics (Toshiba Electronic Devices & Storage Corporation).
Type of company: A Japanese multinational electronics and semiconductor company that designs and manufactures semiconductor devices and other electronic components.
Type of company: A Japanese multinational electronics and semiconductor company that designs and manufactures semiconductor devices and other electronic components.
Application
DTC143ZKAT146 is a digital transistor (NPN with built-in base resistor). Applications include:
- Direct-drive switching of LEDs and indicators from microcontroller I/Os
- Driving small loads such as relays, optocouplers, and small motors (low current)
- Interface/level-shifting for logic signals in consumer, automotive, and industrial electronics
- BOM and PCB space reduction (no external base resistor required)
- Direct-drive switching of LEDs and indicators from microcontroller I/Os
- Driving small loads such as relays, optocouplers, and small motors (low current)
- Interface/level-shifting for logic signals in consumer, automotive, and industrial electronics
- BOM and PCB space reduction (no external base resistor required)
Package
The DTC143ZKAT146 is supplied in a SOT-23 (3-pin, surface-mount) package. The "AT146" suffix denotes tape-and-reel packaging for automated assembly.
