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NXP Semiconductors BAT54T,115
- Part No.:
- BAT54T,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Diodes
- Package:
- SC-75, SOT-416
- Datasheet:
-
BAT54T,115.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA SC75
- Quantity:
- Payment:
- Shipping:
Inventory:8,405
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Product details
Overview
BAT54T,115 from Nexperia is a single planar Schottky barrier diode with integrated guard ring for stress protection, housed in an ultra-small SOT416 (SC-75) surface-mount package. It delivers max 400 mV forward voltage at 10 mA, 30 V reverse voltage rating, and 5 ns reverse recovery time - enabling high-speed switching in space-constrained power management and signal routing circuits.
For engineers reviewing the BAT54T,115 datasheet, BAT54T,115 pinout, BAT54T,115 application, or BAT54T,115 equivalent, key selection criteria include low VF for efficiency-critical biasing, sub-10 pF capacitance for RF/USB signal integrity, AEC-Q101 qualification for automotive-grade reliability, and thermal resistance of 833 K/W in free air.
Technical Context
The BAT54T,115 implements a planar Schottky junction architecture with an integrated guard ring to suppress edge breakdown under transient stress. Its low-barrier metal-semiconductor interface enables fast carrier injection and extraction, yielding 5 ns reverse recovery time and minimal stored charge.
This device operates as a unidirectional conduction element with pin 2 internally unconnected - eliminating parasitic coupling paths. Its thermal design relies on junction-to-ambient conduction through the FR4 PCB footprint, with Rth(j-a) = 833 K/W limiting continuous power dissipation to 150 mW at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Voltage (VF) | Max 400 mV at IF = 10 mA - reduces conduction loss in low-voltage bias and clamping paths |
| Reverse Voltage (VR) | 30 V maximum - supports 24 V system-level transient suppression and logic-level blocking |
| Reverse Recovery Time (trr) | 5 ns typical - enables >100 MHz switching in snubbers and high-frequency rectification |
| Diode Capacitance (Cd) | Max 10 pF at VR = 1 V, f = 1 MHz - minimizes signal distortion in USB 2.0 and audio line protection |
| Junction Temperature (Tj) | 150 °C maximum - allows operation in under-hood automotive modules and industrial controllers |
| AEC-Q101 Qualified | Validated for automotive electronics per stress test requirements - ensures reliability in engine control and ADAS subsystems |
Pinout & Package
Package: SOT416 (SC-75), ultra-small plastic surface-mount package with 3 leads; dimensions 1.75 mm × 0.95 mm × 0.7 mm (L × W × H); standard footprint per Figure 6 in datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Primary current entry point; connects to positive supply or signal source in forward-biased operation |
| 2 | Not Connected | Internally isolated terminal - no electrical connection; must remain unconnected on PCB |
| 3 | Cathode | Current exit path; ties to ground or return node; solder point serves as primary thermal path (Rth(j-sp) = 350 K/W) |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Suppresses edge leakage and improves surge robustness - critical for ESD-prone interfaces and load dump transients |
| Low forward voltage | Typical VF = 320 mV at 1 mA - enables efficient biasing of low-power sensors and reference circuits |
| Ultra-low capacitance | 10 pF max at 1 V reverse bias - preserves signal rise/fall times in high-speed data lines and RF front-ends |
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, and mechanical shock - suitable for body control modules |
Applications
| USB Data Line Protection | Automotive LED Driver Clamping |
|---|---|
Use Scenario: Protecting D+ and D− lines against ESD and cable-induced transients in portable USB peripherals. IC Role / Device Role / Timing Role: Bidirectional clamping diode placed between data line and VBUS/GND rails. Use Value: 5 ns trr and 10 pF capacitance prevent signal degradation while diverting ±8 kV HBM transients per IEC 61000-4-2. |
Use Scenario: Suppressing inductive kickback from PWM-driven LED strings in automotive interior lighting. IC Role / Device Role / Timing Role: Freewheeling diode across LED load to clamp flyback voltage during MOSFET turn-off. Use Value: 30 V VR rating and 400 mV VF minimize power loss and ensure reliable clamping below MCU GPIO voltage limits. |
| Low-Voltage Logic-Level Shifting | High-Frequency Signal Demodulation |
Use Scenario: Level translation between 1.8 V and 3.3 V domains in IoT sensor nodes using passive resistor-diode networks. IC Role / Device Role / Timing Role: Forward-biased Schottky diode providing ~0.3–0.4 V offset between logic thresholds. Use Value: Low VF variation across current range (240–800 mV from 0.1–100 mA) ensures stable threshold shift without calibration. |
Use Scenario: Envelope detection in 2.4 GHz ISM-band receiver front-ends for wireless sensor beacons. IC Role / Device Role / Timing Role: RF detector diode converting modulated carrier into baseband envelope signal. Use Value: Sub-10 pF Cd and 5 ns trr preserve RF bandwidth and enable accurate demodulation up to 500 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB520S-40T1G | Higher VF (max 450 mV @ 10 mA); same SOD-523 (SC-79) package; 30 V VR | Slightly higher conduction loss; identical footprint but different thermal pad layout | Prefer when existing board uses SC-79 land pattern and margin exists for +50 mV VF increase |
| NSR0230HT1G | Lower VF (max 350 mV @ 10 mA); SOD-523 package; 30 V VR; no AEC-Q101 qualification | Better efficiency in battery-powered devices; not qualified for automotive use | Select for consumer wearables or medical sensors where AEC-Q101 is unnecessary and VF reduction is critical |
Compared with RB520S-40T1G and NSR0230HT1G, the BAT54T,115 uniquely combines AEC-Q101 qualification, 5 ns trr, and SOT416 packaging - making it the only option among the three validated for automotive infotainment power rail clamping with minimal board area.
Availability
BAT54T,115 is available at Aetrix Electronics and suitable for automotive body electronics, USB-C port protection, and industrial sensor interface designs requiring stable component supply and long-term lifecycle support.
Supply support for BAT54T,115 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
Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, formed in 2017 from the former NXP Standard Products business.
The BAT54T,115 belongs to Nexperia's Schottky diode portfolio designed specifically for high-speed switching, voltage clamping, and protection in automotive, industrial, and computing systems.
FAQ
What is the maximum reverse voltage rating for BAT54T,115?
The BAT54T,115 has a maximum reverse voltage (VR) rating of 30 V, verified per IEC 60134 absolute maximum ratings. This value applies across the full operating temperature range (−55 °C to +150 °C) and defines the peak DC or repetitive AC voltage the device can block without breakdown. Exceeding 30 V risks permanent junction damage.
Is BAT54T,115 suitable for automotive applications?
Yes, BAT54T,115 is AEC-Q101 qualified, meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and other conditions required for automotive electronic components. It is approved for use in body control modules, lighting drivers, and infotainment power supplies where reliability under harsh environmental conditions is mandatory.
What does the '115' suffix in BAT54T,115 indicate?
The '115' suffix in BAT54T,115 denotes the packing method: 3000 units per 4 mm pitch tape and reel. This ordering code variant corresponds to the 12NC ending -115 and is distinct from BAT54T,135 (10,000 units/reel). The electrical and mechanical specifications of BAT54T,115 are identical to other BAT54T variants.
How is pin 2 used in BAT54T,115?
Pin 2 of the BAT54T,115 is internally not connected (n.c.) - it serves no electrical function and must remain unconnected on the PCB. This isolation eliminates parasitic capacitance and coupling paths that could degrade high-frequency performance. The device operates solely between pin 1 (anode) and pin 3 (cathode).
What is the thermal resistance of BAT54T,115 in free air?
The BAT54T,115 has a thermal resistance from junction to ambient (Rth(j-a)) of 833 K/W when mounted on a standard FR4 PCB with single-sided copper and tin-plated finish. This value assumes free-air convection and defines the temperature rise per watt of dissipated power - limiting continuous operation to 150 mW at 25 °C ambient.
BAT54T,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-75, SOT-416
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 25 V
- Capacitance @ Vr, F:
- 10pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-75
- Operating Temperature - Junction:
- 150°C (Max)
BAT54T,115 FAQ
1.How can I place an order for BAT54T,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54T,115 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 BAT54T,115 reliable?
The price and inventory of BAT54T,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54T,115 is usually 5 days.
3.What payment methods are accepted for BAT54T,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54T,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54T,115?
BAT54T,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54T,115 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 BAT54T,115?
For technical support, including BAT54T,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54T,115 requirements.
6.How does Aetrix verify that BAT54T,115 is sourced from the original manufacturer or authorized distributors?
All BAT54T,115 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 BAT54T,115 meets industry standards.
7.What is the process for return or replacement of BAT54T,115?
All BAT54T,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54T,115, 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 BAT54T,115 part is unused and in its original packaging.
Return procedure for BAT54T,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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