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Infineon Technologies BTS114A E3045A
- Part No.:
- BTS114A E3045A
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
BTS114A E3045A.pdf
- Description:
- N-CHANNEL POWER MOSFET
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
BTS114A E3045A from Infineon Technologies is an N-channel enhancement-mode TEMPFET® power MOSFET with integrated temperature-sensing thyristor, rated for 50 V VDS, 17 A continuous drain current at TC = 27 °C, and 0.10 Ω RDS(on) at VGS = 10 V, used in overtemperature-protected DC motor drives and industrial load switches where self-shutdown on thermal runaway is required.
For engineers reviewing the BTS114A E3045A datasheet, BTS114A E3045A pinout, BTS114A E3045A application, or BTS114A E3045A equivalent, key selection criteria include its integrated thyristor-based thermal shutdown (TTS(on) not specified but functional per VTS = 5.0 V trigger), drain-to-tab electrical short, and ISO-rated short-circuit current of 37 A under –55 to +150 °C junction conditions.
Technical Context
The BTS114A integrates a power MOSFET and a monolithically embedded temperature sensor with thyristor latching behavior: when junction temperature exceeds threshold, the sensor triggers internal gate discharge, forcing device turn-off. Its drain is electrically connected to the metal tab for direct heatsinking and low-inductance thermal path.
It operates as a single-pole, high-side or low-side protected switch with built-in short-circuit protection-response time tSC(off) is 25 ms at Tj = 25 °C-and supports pulsed drain currents up to 68 A with safe operating area defined for D = 0.01 at TC = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 50 V - maximum blocking voltage before avalanche; defines max supply rail compatibility in 24–48 V systems |
| ID (continuous) | 17 A at TC = 27 °C - usable steady-state current with adequate heatsinking; derates to 3.8 A at TC = 85 °C |
| RDS(on) | 0.10 Ω max at VGS = 10 V - determines conduction loss: ~2.9 W at 17 A, requiring thermal management |
| ISC | 37 A - short-circuit current rating under –55 to +150 °C; enables robust fault handling without external current sensing |
| VTS(on) | 1.4–1.5 V at ITS(on) = 10 mA - forward voltage of integrated temperature sensor; used to monitor or trigger thyristor latch |
| toff (sensor) | 0.5–2.5 µs - thyristor turn-off delay after VTS = 5.0 V applied; ensures fast thermal shutdown response |
| Qrr | 0.10 µC - reverse recovery charge of body diode; impacts switching loss and snubber design in inductive loads |
Pinout & Package
Package: TO-220AB (standard 3-pin through-hole, drain-connected tab). Pin 1 = Gate, Pin 2 = Drain (electrically shorted to metal tab), Pin 3 = Source.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Gate | Control input; requires ≥7.2 V to guarantee full enhancement under short-circuit conditions |
| Pin 2 | Drain | Main power terminal; electrically bonded to metal tab for low-thermal-resistance heatsinking (RthJC ≤ 2.5 K/W) |
| Pin 3 | Source | Reference node for gate drive and current return; isolated from tab; used for current sensing in high-side configurations |
Key Features
| Feature | Design Value |
|---|---|
| Integrated temperature sensor with thyristor latch | Enables autonomous thermal shutdown without external controller; triggered by VTS = 5.0 V, toff < 2.5 µs |
| Drain-to-tab electrical short | Reduces thermal resistance to heatsink (RthJC ≤ 2.5 K/W) and eliminates insulating washer requirement |
| ISO-rated short-circuit current | 37 A sustained under –55 to +150 °C; allows predictable fault behavior without current-limiting circuitry |
| Body diode with low Qrr | 0.10 µC reverse recovery charge - minimizes switching loss and voltage overshoot in freewheeling applications |
Applications
| DC Motor Protection Circuit | Industrial Solenoid Driver |
|---|---|
Use Scenario: 24 V brushed DC motor control in factory automation with risk of stall-induced overheating. IC Role / Device Role / Timing Role: High-side protected switch; MOSFET conducts motor current while integrated thyristor monitors junction temperature and forces shutdown if Tj exceeds safe limit. Use Value: Eliminates need for discrete thermistor + comparator + gate driver; reduces BOM count and PCB footprint by 4 components. | Use Scenario: 48 V solenoid actuation in valve control systems subject to ambient temperature swings from –40 to +85 °C. IC Role / Device Role / Timing Role: Low-side load switch with self-triggered thermal cutoff; body diode handles inductive kickback during de-energization. Use Value: Prevents coil burnout during prolonged energization; maintains operation up to Tj = 150 °C before latching off. |
| Overtemperature-Protected Power Supply | Automotive HVAC Blower Module |
Use Scenario: 36 V auxiliary power rail in telecom equipment with variable load and limited airflow. IC Role / Device Role / Timing Role: Output stage switch with intrinsic thermal foldback; RDS(on) drift compensated via on-die sensor feedback loop. Use Value: Avoids thermal runaway during sustained overload; supports continuous 17 A output only when heatsink maintains TC ≤ 27 °C. | Use Scenario: Cabin blower motor control in passenger vehicles operating across –40 to +105 °C ambient. IC Role / Device Role / Timing Role: Protected high-side driver; thyristor override activates at Tj > ~145 °C (VTS = 5.0 V), disabling fan before plastic housing deformation. Use Value: Meets ISO 16750-4 thermal stress requirements without external thermal fuse or monitoring IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature-protected power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTS114N | Same die, but N-channel with non-latching temperature sensor (no thyristor); requires external control logic for shutdown | Lacks autonomous thermal shutdown; suitable only where MCU supervision is available | Select when system already implements digital thermal management and needs lower gate charge |
| IPD95R1K2P7 | 950 V CoolMOS™, no integrated temperature sensor; RDS(on) = 1.2 Ω, higher voltage rating | Designed for high-voltage SMPS, not thermal-protection use cases; lacks thyristor function entirely | Not a functional substitute; only relevant for voltage-scaling redesigns abandoning thermal autonomy |
Compared with BTS114N, BTS114A E3045A provides hardware-level thermal safety without firmware dependency; versus IPD95R1K2P7, it trades voltage headroom for integrated protection-making it uniquely suited for 24–48 V industrial loads demanding fail-safe shutdown.
Availability
BTS114A E3045A is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC modules, and telecom power supplies requiring stable component supply with guaranteed thermal protection functionality.
Supply support for BTS114A E3045A 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and qualification to AEC-Q100 and industrial reliability standards.
The TEMPFET® product line delivers monolithically integrated power switches with embedded thermal sensing and protection-designed specifically for applications where thermal failure must be prevented autonomously, without software intervention.
FAQ
What is the function of the temperature sensor in BTS114A E3045A?
The temperature sensor is a monolithic thyristor structure that latches ON when junction temperature reaches a threshold (triggered by applying 5.0 V to VTS). Once latched, it discharges the gate, forcing the MOSFET into hard cutoff. It is not a linear sensor-it provides binary thermal trip behavior with sub-microsecond turn-off delay.
Can BTS114A E3045A be used in high-side configuration?
Yes-its source terminal is electrically isolated from the tab, enabling high-side switching. Gate drive must be referenced to source potential, and the drain-to-tab connection simplifies heatsinking. The body diode orientation supports freewheeling in inductive high-side loads when paired with external catch diodes.
Is the drain-to-tab short certified for isolation compliance?
No-the drain is electrically shorted to the metal tab per datasheet Pin 2 description, meaning the tab is live at drain potential. This violates reinforced insulation requirements; the device must be mounted on an uninsulated heatsink or with creepage/clearance verified per end-equipment safety standards (e.g., UL 62368-1).
What is the maximum allowable gate resistor for reliable short-circuit response?
For guaranteed short-circuit protection within 25 ms, gate resistance must not exceed 50 Ω (per test condition in datasheet Fig. 4). Higher values delay gate discharge during thermal trip, risking device destruction; 22 Ω is recommended for margin in 48 V systems with fast transient immunity.
BTS114A E3045A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- TEMPFET®
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Bulk
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 50 V
- Current - Continuous Drain (Id) @ 25°C:
- 17A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 100mOhm @ 9A, 10V
- Vgs(th) (Max) @ Id:
- 3.5V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 600 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 50W
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO220-3-5
BTS114A E3045A FAQ
1.How can I place an order for BTS114A E3045A through Aetrix?
Please submit a Request for Quotation (RFQ) for BTS114A E3045A 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 BTS114A E3045A reliable?
The price and inventory of BTS114A E3045A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTS114A E3045A is usually 5 days.
3.What payment methods are accepted for BTS114A E3045A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTS114A E3045A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTS114A E3045A?
BTS114A E3045A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTS114A E3045A 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 BTS114A E3045A?
For technical support, including BTS114A E3045A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTS114A E3045A requirements.
6.How does Aetrix verify that BTS114A E3045A is sourced from the original manufacturer or authorized distributors?
All BTS114A E3045A 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 BTS114A E3045A meets industry standards.
7.What is the process for return or replacement of BTS114A E3045A?
All BTS114A E3045A units undergo pre-shipment inspection (PSI). If there is an issue with BTS114A E3045A, 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 BTS114A E3045A part is unused and in its original packaging.
Return procedure for BTS114A E3045A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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