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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
23,900 pcs
|
23900 pcs | On Request | 1 | On Request | On Request | 1736+ | On Request | On Request | |
|
1,000 pcs
|
1000 pcs | On Request | 1 | On Request | On Request | 21+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Collector Current (Maximum @ Pw=100 ms single pulse) | |
| Collector Cut-Off Current | |
| Collector-Base Voltage | |
| Current | |
| DC Current Gain (hFE) (Min) @ Ic, Vce | |
| Emitter Cut-off Current | |
| Emitter-Base Voltage | |
| Frequency | |
| Lead Style | |
| Marking | |
| Mounting Type | |
| Operating Temperature | |
| Output Capacitance | |
| Package / Case Code | |
| Power | |
| Reel Size | |
| Standard Package Quantity | |
| Storage Temperature Range | |
| Supplier Device Package | |
| Tape & Reel | |
| Tape Width | |
| Termination Style | |
| Transistor Type | |
| Vce Saturation (Max) @ Ib, Ic | |
| Vce Saturation (Typical/Maximum @ Ib=50 mA, Ic=500 mA) | |
| Voltage |
The 2SD1781KT146R is an NPN bipolar junction transistor manufactured by ROHM Semiconductor. It is designed for medium power amplification and switching applications. Key electrical ratings include a collector-emitter voltage (Vceo) of 32V, a continuous collector current of 800mA, and a peak pulsed current of 1.5A. The device features a very low collector-emitter saturation voltage, typically 100mV at 500mA collector current and 50mA base current, minimizing power loss in switching applications. The DC current gain (hFE) ranges from 120 to 390 depending on the rank, with a minimum of 180 at 100mA and 3V. The transition frequency is typically 150MHz, making it suitable for moderate-speed switching. The output capacitance is typically 15pF. The transistor is housed in a compact SMT3 package (equivalent to TO-236-3, SC-59, SOT-23-3) for surface mount assembly. It is supplied on 180mm reels with 8mm tape width in quantities of 3000 pieces per reel. The operating junction temperature range is up to 150°C, with storage from -55°C to 150°C. The device is marked with code 'AF' for identification.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.45 | $0.45 |
| 10+ | $0.28 | $0.28 |
| 100+ | $0.18 | $0.18 |
| 500+ | $0.13 | $0.13 |
| 1,000+ | $0.12 | $0.12 |
| 3,000+ | $0.10 | $0.10 |
| 9,000+ | $0.08 | $0.08 |
| 24,000+ | $0.07 | $0.07 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
32V.
Surface mount SMT3 package, also known as TO-236-3, SC-59, or SOT-23-3.
150°C junction temperature, with storage range from -55°C to 150°C.
The device is stated as RoHS3 compliant, but this is unverified in available data sources.
800mA, with a pulsed current capability of 1.5A (single pulse, 100ms).
The hFE is classified: Q rank 120-270, R rank 180-390. Minimum 180 at 100mA, 3V.
Yes, the complementary PNP is 2SB1197K.