Tip122 5A 100V NPN Darlington Power Transistor TO-220

Tip122 5A 100V NPN Darlington Power Transistor TO-220 The TIP122 is a monolithic NPN Darlington power transistor housed in a TO-220AB package, engineered to deliver high current amplification in a compact, medium-power format. Internally, it consists of two NPN transistor stages fabricated on a single silicon die using planar “base-island” technology, which ensures tight coupling between elements and minimizes parasitic resistance. A pair of integrated base-emitter resistors provides a defined bias path that accelerates turn-off and prevents latch-up, giving the device fast switching characteristics despite its high gain topology. Thermal management is achieved by bonding the die directly to the metal mounting tab of the TO-220AB package, allowing efficient heat transfer to an external heatsink. The package’s exposed backplate serves as the collector terminal, while its three leads provide connections for base, emitter, and an auxiliary collector pin that helps evenly distribute current and heat under heavy load. This design supports robust operation over a broad junction temperature range (–65 °C to +150 °C), making the TIP122 suitable for demanding power amplification and switching tasks. Although optimized for ease of use in amplifier and low-speed switching circuits, the TIP122’s Darlington configuration yields exceptionally high DC current gain (on the order of thousands) while maintaining a relatively low saturation voltage. This combination of high gain and low on-voltage drop allows designers to achieve substantial current boosting with minimal drive power and reduced thermal stress on switching elements. Features The low collector-emitter saturation voltage. Complementary NPN – PNP transistors. High DC Current Gain: h_FE = 2500 (typical) at I_C = 4.0 A. Collector–Emitter Sustaining Voltage: V_CEO(sus) = 100 V (min) at I_C = 100 mA. Low Collector–Emitter Saturation Voltage: V_CE(sat) ≤ 2.0 V (max) at I_C = 3.0 A; ≤ 4.0 V (max) at I_C = 5.0 A. Monolithic Construction with Built-In Base-Emitter Shunt Resistors: ensures fast turn-off and prevents latch-up. Pb-Free Package Available : compliant with lead-free soldering requirements (see ON Semiconductor Soldering & Mounting Techniques Reference Manual). Technical Specifications: Parameter Symbol Value / Condition Unit Collector–Emitter Voltage: VCEO 100 V Collector–Base Voltage: VCBO 100 V Emitter–Base Voltage: VEBO 5 V Continuous Collector Current: IC 5 A Peak Collector Current: ICM 8 A Base Current: IB 0.12 A Total Power Dissipation (TC = 25 °C): PTOT 65 W Total Power Dissipation (TA = 25 °C): PTOT 2 W Junction–Case Thermal Resistance: RθJC 1.92 °C/W Junction–Ambient Thermal Resistance: RθJA 62.5 °C/W Operating/Storage Temperature: TJ, Tstg –65 to +150 °C Collector Cut-off Current: ICEO ≤ 0.5 (VCE = 50 V) mA Collector–Base Cut-off Current: ICBO ≤ 0.2 (VCB = 100 V) mA Emitter Cut-off Current: IEBO ≤ 2.0 (VEB = 5 V) mA Collector–Emitter Saturation Voltage: VCE(sat) ≤ 2.0 @ IC=3 A; ≤ 4.0 @ IC=5 A V Base–Emitter On Voltage: VBE(on) ≤ 2.5 @ IC = 3 A, VCE = 3 V V DC Current Gain: hFE ≥ 1000 @ IC = 0.5 A and 3 A – Small-Signal Current Gain: hfe ≥ 4 @ IC = 3 A, f = 1 MHz – Output Capacitance: Cob ≤ 200 (VCB = 10 V, f = 0.1 MHz) pF Dimensions: Applications: Linear and Switching Voltage Regulators. Relay Drivers. Lamp Drivers. Motor Drivers. Audio Amplifiers. Power Control Circuits. Solenoid Drivers. General-Purpose High Current Switching. Package Include: 1x Tip122 5A 100V NPN Darlington Power Transistor TO-220 Tip122 Datasheet

The TIP122 NPN Darlington Transistor is a semiconductor switching component for switching, amplification and power control circuits. It is a practical choice for your bill of materials or repair part list, and it is stocked at Most Electronics in Cairo with shipping to every governorate. TIP122 NPN Darlington Transistor – Key Features • Through-hole or module package as listed • Suitable for switching and amplification • Check the datasheet for pinout and ratings Applications Makers, students and technicians use it in many kinds of projects, for example: • Power switching and motor control • Amplifier and driver stages • Power supply and inverter repair • Student labs and prototyping Usage Tips Check the pinout in the datasheet before soldering, use a heatsink at higher currents and protect inductive loads with a flyback diode. Why Buy from Most Electronics? Most Electronics is an electronics components store in Cairo serving engineers, students, makers and repair shops across Egypt. Every order is checked before it ships, prices are clear, and our team can help you choose compatible parts for your project. • Original and tested stock • Cash on delivery and fast shipping to all governorates • Pickup available from our Cairo branch • Technical support on WhatsApp before and after purchase Ordering, Delivery and Support Ordering from Most Electronics is simple. Add the item to your cart, choose home delivery or pickup from our Cairo branch, and pay cash on delivery or by the available online methods. Orders inside Cairo and Giza usually arrive within one to two working days, and shipments to other governorates normally take two to four working days depending on the courier. Every product is inspected before packing, and sensitive parts are packed in protective bags to prevent damage during shipping. If anything arrives faulty or different from what you ordered, contact our support team on WhatsApp and we will arrange a replacement according to our return policy. Not sure which part fits your project? Send us a message with your circuit or project idea and our engineers will help you choose compatible modules, power supplies, cables and accessories, so you can order everything you need in one go and start building right away. Package Includes 1 piece, as described in the product title and photos. TIP122 NPN Darlington Transistor – Frequently Asked Questions Where can I buy it in Egypt? You can order it online from Most Electronics and pay on delivery, or collect it from our store in Cairo. Can I order more than one piece? Yes. Set the quantity you need in the cart; quantity discounts may apply on selected items.

Transistor Type: NPN - Darlington. Current-Collector (Ic) (Max): 5A. Voltage- Collector Emitter Breakdown (Max): 100V. Power- Max: 2W. Package / Case: TO-220. TIP122 Transistor datasheet

TIP122 Silicon NPN Power Darlington Transistor ( 5A ,100V , 65W )