2N2646 Unijunction Transistor
2N2646 Unijunction Transistor
1. Intrinsic Standoff Ratio (η): 0.56-0.75
2. Interbase Resistance (RBBO): 4.7-9.1kΩ
3. Peak Pulse Emitter Current: 2A
4. Power Dissipation (PD): 300mW
5. Package: TO-18
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1,00 EGP
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Description
The 2N2646 is a silicon unijunction transistor (UJT) — a three-terminal device with a single PN junction that behaves as a voltage-triggered switch rather than a linear amplifier. Its silicon planar construction gives it a lower saturation voltage, lower peak-point and valley currents, and a higher base-one peak pulse voltage than older alloy-junction UJTs, along with much faster switching.
It’s the classic choice for relaxation oscillators, SCR/triac trigger circuits, and free-running pulse generators, where circuit economy is the priority and a guaranteed minimum pulse amplitude is required. Its intrinsic standoff ratio (η) of 0.56-0.75 sets the fixed trigger point of the internal voltage divider.
- Silicon planar construction for fast, clean switching
- Intrinsic standoff ratio (η) of 0.56–0.75
- Interbase resistance of 4.7-9.1kΩ
- Peak pulse emitter current up to 2A
- 300mW power dissipation, TO-18 package
- Low-cost device ideal for pulse generators and SCR triggers
- Valley current minimum of 4mA
نظرة عامة ومواصفات المنتج — بالعربية
2N2646 Unijunction Transistor متوفر الآن في متجر إكوسترا للإلكترونيات، ضمن قسم Transistor، بسعر 1,00 EGP. كود المنتج لدينا: EK945. المنتج غير متوفر حالياً — تواصل معنا عبر واتساب لمعرفة موعد توفره القادم.
أهم المواصفات الفنية:
- Device Type: Unijunction Transistor (UJT)
- Package: TO-18
- Interbase Voltage (Vb2B1 Max): 35V
- Emitter Base2 Voltage (Vb2E Max): 30V
- Valley Current (Iv Min): 4mA
- Peak Current (Ip Max): 5µA
- Junction Temperature Range: -65°C to +125°C
- الوزن: 1 g
منتج أصلي بجودة مضمونة من إكوسترا، مع دعم فني ومتابعة بعد البيع لكل عملائنا في مصر.
تصفّح المزيد من Transistor في إكوسترا.
Specification
Specification
| WeightWeight | 1 g |
|---|---|
| Dimensions | 0,5 × 0,5 × 0,45 cm |
| Device Type | Unijunction Transistor (UJT) |
| Package | TO-18 |
| Interbase Voltage (VB2B1 max) | 35V |
| Emitter-Base2 Voltage (VB2E max) | 30V |
| Valley Current (IV min) | 4mA |
| Peak Current (IP max) | 5µA |
| Junction Temperature Range | -65°C to +125°C |
