
LTP305 ESP32 CLOCK
BasementCircuits/BulletTime
ESP32 based clock using LTP305 led matrices
Micro Commercial ComponentsExtended
-55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 120 25V 300mW 500mV 5V NPN SOT-23 Bipolar (BJT) ROHS
The MMSS8050-L-TP is a bipolar made by Micro Commercial Components in a SOT-23 package with 3 pins. -55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 120 25V 300mW 500mV 5V NPN SOT-23 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_NPN_1B_2E_3C, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 13,431 are in stock at JLCPCB (part C194044). 5 open-source boards in 5 repositories on GitHub use it.
| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Collector-Base Breakdown Voltage V(BR)CBO | IC=100uAdc, IE=0 | min 40 Vdc | 1 |
| Collector-Emitter Breakdown Voltage V(BR)CEO | IC=0.1mAdc, IB =0 | min 25 Vdc | 1 |
| Emitter-Base Breakdown Voltage V(BR)EBO | IE=100uAdc, IC=0 | min 5 Vdc | 1 |
| Collector Cutoff Current ICBO | VCB=40Vdc, IE =0 | max 0.1 uAdc | 1 |
| Collector Cutoff Current ICEO | VCE=20Vdc, IB =0 | max 0.1 uAdc | 1 |
| Emitter Cutoff Current IEBO | VEB =5.0Vdc, IC=0 | max 0.1 uAdc | 1 |
| DC Current Gain hFE(1) | IC=100mAdc, V CE=1.0Vdc | min 120 · max 350 --- | 1 |
| DCCurrent Gain hFE(2) | IC=800mAdc, V CE=1.0Vdc | min 40 --- | 1 |
| Collector-Emitter Saturation Voltage VCE(sat) | IC=800mAdc, IB =80mAdc | max 0.5 Vdc | 1 |
| Base-Emitter Saturation Voltage VBE(sat) | IC=800mAdc, IB =80mAdc | max 1.2 Vdc | 1 |
| Base- Emitter Voltage VEB | IE =1.5Adc | max 1.6 Vdc | 1 |
| Transistor Frequency fT | IC=50mAdc, V CE=10Vdc, f=30MHz | min 100 MHz | 1 |
| Range hFE(1) | Rank L; MMSS8050-L | min 120 · max 200 | 1 |

BasementCircuits/BulletTime
ESP32 based clock using LTP305 led matrices




Yes. The symbol is Pinmap_Generic:Q_NPN_1B_2E_3C and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOT-23, with 3 pins. Its footprint is drawn on this page.
Micro Commercial Components publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C194044, with 13,431 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the SS8050 by hongjiacheng, the SS8050 by MDD, the SS8550 by hongjiacheng and the SS8550 Y2 by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.
5 boards in 5 repositories on GitHub; the most starred are listed on this page, with their KiCad files.