SS8550 Y2 PNP SMD Transistor SOT-23 for Arduino in Pakistan
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SS8550 Y2 PNP SMD Transistor SOT-23 for Arduino in Pakistan
SS8550 Y2 PNP SMD Transistor SOT-23 — Pakistani students, engineers, aur hobbyists ke liye ek reliable, low-cost switching transistor jo tight spaces mein bhi fit ho jata hai!
Specifications
| Field | Detail |
|---|---|
| Part Number | SS8550 (Marking: Y2) |
| Transistor Type | PNP BJT |
| Package | SOT-23 (SMD) |
| Collector-Emitter Voltage (Vceo) | -25V |
| Collector-Base Voltage (Vcbo) | -30V |
| Emitter-Base Voltage (Vebo) | -5V |
| Collector Current (Ic) | -1.5A (max) |
| DC Current Gain (hFE) | 60–400 [VERIFY range for Y2 grade] |
| Power Dissipation (Pd) | 625mW |
| Operating Temperature | -55°C to +150°C |
| Interface | GPIO (Base drive from MCU via resistor) |
| Compatible Boards | Arduino Uno/Nano/Mega, ESP32, ESP8266, STM32, Raspberry Pi |
| Dimensions (SOT-23) | ~2.9mm × 1.3mm × 1.0mm [VERIFY] |
Kahan Use Hota Hai (Use Cases)
- 🔌 LED / Buzzer Switching: Arduino ya ESP32 se low-power loads ko switch karna — college lab projects ke liye perfect.
- 🏠 Smart Home Automation: Relay drive circuits mein base transistor ke tor par use karein.
- 🤖 Robotics: Motor driver support circuits aur signal inversion ke liye.
- 📡 IoT Projects: ESP32/ESP8266 ke GPIO pins se high-current peripherals control karna.
- 🏭 Industrial Sensing: Current mirror aur amplifier circuits mein FYP projects ke liye.
Kaise Connect Karein (Wiring Guide)
Pin 1 = Base (B)
Pin 2 = Emitter (E)
Pin 3 = Collector (C)
--- Arduino Uno Example (LED Switch) ---
Arduino D7 --[10kΩ resistor]--> SS8550 Base (Pin 1)
Arduino GND -----------------> SS8550 Emitter (Pin 2)
LED Cathode -----------------> SS8550 Collector (Pin 3)
LED Anode --[330Ω resistor]--> VCC (3.3V or 5V)
// ESP32 Note: Same wiring, use D2 or any GPIO pin.
// [VERIFY] SOT-23 pin orientation with your specific reel datasheet.
FAQ
- Q: Kya yeh Arduino ke 5V GPIO se directly drive ho sakta hai?
- A: Yes, but always use a base resistor (4.7kΩ–10kΩ) between the GPIO pin and the base to limit current and protect your microcontroller.
- Q: NPN aur PNP mein kya farq hai — SS8550 kab use karein?
- A: SS8550 is PNP — it switches ON when the base is pulled LOW. Use it for high-side switching (load between VCC and collector). For low-side switching, use an NPN like SS8050.
- Q: Kya yeh 1A se zyada current handle kar sakta hai?
- A: The absolute max is 1.5A, but for reliable operation keep it under 1A and ensure adequate PCB copper area for heat dissipation.
- Q: Arduino library ki zaroorat hai?
- A: No library needed — it's a discrete component. Simply control it with digitalWrite() on your Arduino or ESP32 GPIO pin.
✅ Fast delivery across Pakistan | COD available | Bulk orders welcome — contact us on WhatsApp!
[VERIFY] Checklist Before Publishing
- [ ] Confirm hFE range for Y2 grade (typically 120–200 for Y2 bin)
- [ ] Verify SOT-23 exact pin dimensions from datasheet
- [ ] Confirm pin 1/2/3 orientation matches your reel supplier's datasheet
- [ ] Check if sold individually or per strip/reel — update title/description accordingly