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onsemi TIP115G
- Part No.:
- TIP115G
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3
- Datasheet:
-
TIP115G.pdf
- Description:
- TRANS PNP DARL 60V 2A TO-220
- Quantity:
- Payment:
- Shipping:
Inventory:587
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Product details
Overview
TIP115G from onsemi is a PNP silicon Darlington transistor in TO-220AB package, designed for medium-power linear amplification and low-speed switching. It delivers 2.0 A continuous collector current, sustains 60 Vdc collector-emitter voltage, and achieves typical DC current gain of 2500 at 1.0 A, enabling high-current drive with minimal base drive in industrial control and power supply circuits.
For engineers reviewing the TIP115G datasheet, pinout, applications, or equivalent options, key selection criteria include its built-in base-emitter shunt resistors, 50 W power dissipation at TC = 25°C, low 2.5 V max VCE(sat) at 2.0 A, and Pb-free TO-220 packaging - all critical for thermal reliability and simplified PCB layout in discrete power stages.
Technical Context
The TIP115G integrates two monolithic PNP transistors in Darlington configuration with internal base-emitter shunt resistors (~8.0 kΩ and ~120 Ω), reducing external component count and improving turn-off speed. Its safe operating area (SOA) is limited by thermal constraints up to 150°C junction temperature and secondary breakdown under pulsed conditions.
It operates with VEB(max) = 5.0 Vdc, supports unclamped inductive load energy handling up to 25 mJ, and exhibits Cob = 200 pF at 10 Vcb - parameters directly influencing stability in amplifier feedback networks and snubber design in relay drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO(sus) | 60 Vdc minimum - defines maximum safe DC voltage across collector-emitter before sustaining breakdown in switching applications. |
| IC(continuous) | 2.0 Adc - usable steady-state output current without forced cooling; derates to 0.4 W/°C above 25°C case temperature. |
| hFE(typ) | 2500 @ IC = 1.0 Adc - enables microamp-level base drive for full-load conduction, simplifying driver stage design. |
| VCE(sat)(max) | 2.5 Vdc @ IC = 2.0 Adc, IB = 8.0 mAdc - determines conduction loss and heat generation in saturated switch operation. |
| RJC | 2.5 °C/W - junction-to-case thermal resistance; used with heatsink RCH to calculate maximum allowable power at target TJ. |
| PD @ TC = 25°C | 50 W - maximum dissipated power with case held at 25°C; requires mechanical mounting to heatsink for real-world use. |
| Package | TO-220AB (Case 221A) - industry-standard through-hole power package with electrically isolated collector pins (pins 2 & 4) for direct heatsink mounting. |
Pinout & Package
TO-220AB package (Case 221A) with 4-terminal configuration: metal tab is collector (pin 2 & 4), electrically isolated from leads; pin 1 = Base, pin 3 = Emitter. Mounting tab must be insulated if heatsink is grounded.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input node; internally connected to first transistor's base and shunt resistor network - accepts low-current drive for high-gain switching. |
| 2 | Collector | Main high-current output terminal; electrically tied to metal tab - requires thermal interface to heatsink and electrical isolation if tab is grounded. |
| 3 | Emitter | Power return path; common emitter connection for PNP operation - referenced to system ground or negative rail in typical configurations. |
| 4 | Collector | Second collector terminal; internally bonded to same node as pin 2 - provides dual-point mechanical attachment and current sharing for robust heatsinking. |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic Darlington pair | Eliminates discrete interconnects and matching issues; ensures consistent hFE and thermal tracking between stages. |
| Built-in base-emitter shunt resistors | ~8.0 kΩ and ~120 Ω network guarantees reliable turn-off without external pull-down, reducing BOM count and board space. |
| 60 Vdc VCEO(sus) rating | Supports operation in 48 VDC industrial bus systems with margin against inductive kickback in relay and solenoid drivers. |
| 50 W power dissipation capability | Enables linear-mode operation (e.g., pass transistor in adjustable regulators) when paired with ≥0.5°C/W heatsink assembly. |
| Pb-free TO-220AB package | Complies with RoHS Directive 2011/65/EU; compatible with standard lead-free reflow and wave soldering profiles per J-STD-020. |
Applications
| Industrial Relay Driver | Linear Voltage Regulator Pass Element |
|---|---|
Use Scenario: Driving 24 VDC industrial relays with coil inductance >100 mH in PLC output modules. IC Role / Device Role / Timing Role: PNP Darlington switch providing 2.0 A peak load current with fast turn-off via internal shunt resistors. Use Value: Eliminates need for external flyback diode and base pull-down resistor, reducing component count and improving reliability under repetitive switching. |
Use Scenario: Adjustable linear regulator delivering 0–30 V / 1.5 A using LM317-based topology with external pass element. IC Role / Device Role / Timing Role: High-hFE series pass transistor dissipating up to 45 W during worst-case dropout conditions. Use Value: Enables stable regulation with <1% load regulation error due to high current gain and low VCE(sat) at full load. |
| DC Motor Speed Controller | High-Current LED Dimming Circuit |
Use Scenario: Low-frequency PWM-controlled 12 V brushed DC motor (up to 1.8 A) in HVAC damper actuators. IC Role / Device Role / Timing Role: Saturated PNP switch operating at ≤500 Hz with 2.5 V saturation drop limiting conduction loss. Use Value: Maintains motor torque linearity across 10–100% duty cycle while limiting junction temperature rise to <125°C with standard heatsink. |
Use Scenario: Constant-current dimming of high-brightness LED strings (3–5 Vf, 1.2 A) in architectural lighting fixtures. IC Role / Device Role / Timing Role: Linear current regulator configured in emitter-follower mode with sense-resistor feedback. Use Value: Achieves <±2% current accuracy over ambient range –40°C to +85°C due to low hFE temperature coefficient and stable VBE(on). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MJD115G | Surface-mount DPAK package; identical VCEO(sus) = 60 V, hFE = 2500 typ, but lower PD = 35 W @ TC = 25°C. | Requires PCB thermal relief and copper pour instead of mechanical heatsink; unsuitable for >1.2 A continuous linear operation. | Select MJD115G only when board space is constrained and peak power dissipation remains ≤25 W. |
| TIP117G | Same TO-220AB package and Darlington architecture, but rated for VCEO(sus) = 100 Vdc and PD = 50 W. | Higher voltage rating increases cost and may degrade switching speed slightly due to larger junction capacitance (Cob = 100 pF vs. 200 pF). | Choose TIP117G only when system transients exceed 60 V or when designing for 90–100 VDC bus compatibility. |
Compared with MJD115G and TIP117G, the TIP115G offers optimal balance of voltage margin, thermal performance, and through-hole manufacturability for 48–60 VDC industrial loads - avoiding unnecessary cost or complexity while meeting SOA requirements for relay, motor, and linear regulator use cases.
Availability
TIP115G is available at Aetrix Electronics and suitable for industrial relay drivers, linear voltage regulators, and DC motor controllers requiring stable component supply and long-term production continuity.
Supply support for TIP115G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The TIP115G belongs to onsemi's legacy plastic medium-power complementary transistor family, engineered for robustness and ease of use in discrete power amplification and switching - targeting cost-sensitive, thermally demanding applications where reliability outweighs ultra-high frequency performance.
FAQ
What is the maximum continuous collector current for the TIP115G?
The TIP115G supports 2.0 Adc continuous collector current at case temperature TC = 25°C. This rating assumes proper heatsinking; current must be derated linearly by 0.4 W/°C above 25°C case temperature to maintain junction temperature below 150°C. At TC = 75°C, maximum continuous current drops to approximately 1.2 A based on thermal limits.
Does the TIP115G have built-in base resistors?
Yes, the TIP115G features monolithic construction with built-in base-emitter shunt resistors (~8.0 kΩ and ~120 Ω). These resistors ensure reliable turn-off without external components, reduce base drive requirements, and improve switching consistency - a key differentiator from standard PNP transistors that require discrete pull-down networks.
What is the collector-emitter sustaining voltage (VCEO(sus)) specification for the TIP115G?
The TIP115G has a minimum collector-emitter sustaining voltage VCEO(sus) of 60 Vdc at IC = 30 mAdc and IB = 0. This parameter defines the highest DC voltage the device can block in active switching mode before entering avalanche breakdown - making it suitable for 48 VDC industrial systems with transient margin.
Can the TIP115G be used in linear regulator applications?
Yes, the TIP115G is commonly used as a pass transistor in adjustable linear regulators. Its 50 W power dissipation at TC = 25°C, low VCE(sat) of 2.5 V max, and high hFE of 2500 typ enable stable current delivery up to 2.0 A with minimal base drive and predictable thermal behavior when mounted to an appropriate heatsink.
Is the TIP115G RoHS-compliant and lead-free?
Yes, the TIP115G is a Pb-free device per the "G" suffix designation and complies with EU RoHS Directive 2011/65/EU. Its TO-220AB package uses lead-free terminations and meets JESD97 stress-test requirements for moisture sensitivity level (MSL) 1 - allowing standard reflow and wave soldering without special handling.
TIP115G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Transistor Type:
- PNP - Darlington
- Current - Collector (Ic) (Max):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 60 V
- Vce Saturation (Max) @ Ib, Ic:
- 2.5V @ 8mA, 2A
- Current - Collector Cutoff (Max):
- 2mA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 1000 @ 1A, 4V
- Power - Max:
- 2 W
- Frequency - Transition:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
TIP115G FAQ
1.How can I place an order for TIP115G through Aetrix?
Please submit a Request for Quotation (RFQ) for TIP115G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TIP115G reliable?
The price and inventory of TIP115G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TIP115G is usually 5 days.
3.What payment methods are accepted for TIP115G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TIP115G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TIP115G?
TIP115G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TIP115G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TIP115G?
For technical support, including TIP115G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TIP115G requirements.
6.How does Aetrix verify that TIP115G is sourced from the original manufacturer or authorized distributors?
All TIP115G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TIP115G meets industry standards.
7.What is the process for return or replacement of TIP115G?
All TIP115G units undergo pre-shipment inspection (PSI). If there is an issue with TIP115G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TIP115G part is unused and in its original packaging.
Return procedure for TIP115G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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