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Taiwan Semiconductor Corporation BAT54BR
- Part No.:
- BAT54BR
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAT54BR.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:8,716
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Product details
Overview
BAT54BR from Taiwan Semiconductor is a dual-channel Schottky barrier diode in SOT-363 package, rated for 200 mA forward current and 30 V repetitive peak reverse voltage, with 1.00 V forward voltage at 100 mA and 5 ns reverse recovery time - used for high-speed polarity protection and clamping in portable power management circuits.
For engineers reviewing the BAT54BR datasheet, BAT54BR pinout, BAT54BR application, or BAT54BR equivalent, key selection criteria include its dual-common-cathode configuration, low VF at low IF, sub-10 ns trr, moisture sensitivity level 1 rating, and RoHS/halogen-free compliance for space-constrained consumer and industrial PCBs.
Technical Context
The BAT54BR integrates two independent Schottky diodes sharing a common cathode terminal in a single SOT-363 package, enabling compact dual-diode functions without discrete placement. Its junction-to-ambient thermal resistance is 625°C/W, and it operates across –65°C to +150°C junction temperature range.
Each diode exhibits ≤2 μA reverse leakage at 25 V and 25°C, 10 pF junction capacitance at 1 V reverse bias, and maintains fast switching performance due to metal–semiconductor barrier construction - not PN-junction - eliminating minority-carrier storage delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (max) | 200 mA - continuous forward current per diode; defines max steady-state load handling |
| VRRM | 30 V - peak reverse blocking capability; sets max clamping or reverse-protection voltage |
| VF @ 100 mA | 1.00 V - low conduction loss at typical operating current; reduces power dissipation in battery-fed paths |
| trr | 5 ns - ultrafast recovery enables use in >10 MHz switching applications without tail current |
| IR @ 25 V | ≤2 μA - minimal leakage preserves battery life in always-on reverse-polarity protection |
| RθJA | 625 °C/W - thermal limit requires careful copper area allocation in SOT-363 footprint |
| MSL Level | Level 1 (J-STD-020) - no bake required before reflow; simplifies SMT assembly flow |
Pinout & Package
SOT-363 (SC-70-6) surface-mount package with 6-pin lead frame, matte tin-plated terminals, UL 94V-0 molding compound, and 6.99 mg typical weight. Moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode A | Input node for first Schottky path; connects to supply or signal source requiring clamping |
| 2 | Cathode (common) | Shared cathode node for both diodes; ties to ground or reference rail in dual-clamp topology |
| 3 | Anode of Diode B | Input node for second independent Schottky path; supports dual-rail or redundancy schemes |
| 4 | No Connection | Internally unconnected; must be left floating or tied to ground only if validated by layout simulation |
| 5 | No Connection | Internally unconnected; no electrical function; avoid routing signals or power to this pad |
| 6 | No Connection | Internally unconnected; mechanical support only; no thermal or electrical role |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-cathode Schottky diodes | Enables compact dual-rail reverse polarity protection or bidirectional clamping in one footprint |
| 1.00 V VF @ 100 mA | Reduces conduction loss by ~30% vs. comparable silicon diodes, extending battery runtime |
| 5 ns reverse recovery time | Supports clean edge transitions in 10–50 MHz digital I/O protection and DC-DC feedback paths |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for global market compliance |
| MSL Level 1 | Eliminates pre-bake step during reflow, reducing manufacturing cycle time and cost |
Applications
| USB Port Protection | Smartphone Power Sequencing |
|---|---|
Use Scenario: Preventing damage from accidental reverse-connection of USB cables or miswired accessories. IC Role / Device Role / Timing Role: Dual Schottky clamp protecting VBUS and D+/D− lines against reversed polarity and ESD-induced transients. Use Value: 30 V VRRM blocks overvoltage spikes while 5 ns trr avoids signal distortion on high-speed USB 2.0 data lines. | Use Scenario: Ensuring correct power-up order between AP, PMIC, and peripheral rails in mobile SoC designs. IC Role / Device Role / Timing Role: Isolating auxiliary LDO outputs using back-to-back BAT54BR anodes to enforce directional current flow. Use Value: 1.00 V VF minimizes voltage drop across isolation path, preserving tight regulation margins on 1.8 V and 3.3 V rails. |
| Wearable Sensor Node Clamping | Industrial IoT Gateway ESD Guard |
Use Scenario: Protecting low-power analog sensor inputs (e.g., thermistor, accelerometer) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (≤2 μA) dual Schottky clamp shunting transients to ground before reaching ADC front-end. Use Value: Sub-μA IR prevents DC offset errors in precision 16-bit sensor measurements under battery operation. | Use Scenario: Hardening RS-485 or CAN physical layer interfaces against ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Fast-switching Schottky pair diverting ESD current away from transceiver IC pins during surge events. Use Value: 600 mA IFSM surge rating handles multi-pulse ESD stress without degradation; SOT-363 fits dense connector layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Diodes Inc. BAT54C | Same SOT-363 package, identical dual-common-cathode pinout, but VF = 0.85 V @ 100 mA (lower), IR = 0.5 μA @ 25 V (lower) | Better suited for ultra-low-leakage sensor front-ends; same clamping speed and voltage rating | Select BAT54C when <1 μA reverse leakage is critical; BAT54BR preferred where MSL Level 1 assurance is mandatory per J-STD-020 |
| Nexperia PMEG3002AEB | SOT-363, single Schottky diode (not dual), VF = 0.52 V @ 100 mA, IR = 0.1 μA @ 25 V, trr = 4 ns | Requires two devices for dual-path protection; superior VF/IR but doubles board area and BOM count | Choose PMEG3002AEB for lowest VF in single-diode roles; BAT54BR remains optimal for integrated dual-channel space savings |
Compared with BAT54C and PMEG3002AEB, the BAT54BR delivers balanced performance: its 1.00 V VF and 2 μA IR meet mainstream consumer power integrity needs, while its dual-diode-in-one-SOT-363 structure reduces component count and layout complexity without compromising MSL Level 1 manufacturability.
Availability
BAT54BR is available at Aetrix Electronics and suitable for USB port protection, smartphone power sequencing, wearable sensor node clamping, and industrial IoT gateway ESD guard applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for BAT54BR 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, analog ICs, and ESD protection solutions for consumer, industrial, and automotive markets.
The BAT54BR belongs to TSC's BAT54 family of Schottky barrier diodes designed specifically for high-density, high-reliability portable electronics where low VF, fast trr, and MSL Level 1 compliance are essential for automated SMT assembly and battery-powered longevity.
FAQ
What is the pin configuration of the BAT54BR?
The BAT54BR uses a SOT-363 package with six terminals: Pin 1 is Anode A, Pin 2 is the shared Cathode, Pin 3 is Anode B, and Pins 4–6 are internally unconnected. This dual-common-cathode arrangement allows independent control of two Schottky paths while minimizing PCB area. The BAT54BR marking code is "KLB", visible on the top surface.
Does the BAT54BR support reflow soldering without baking?
Yes, the BAT54BR has Moisture Sensitivity Level 1 per J-STD-020, meaning it can undergo standard lead-free reflow profiles (e.g., JEDEC J-STD-020 Class 3) without prior dry-pack or baking. This eliminates process steps and reduces risk of popcorning, making the BAT54BR ideal for high-volume SMT lines handling portable electronics.
How does the BAT54BR compare to standard silicon diodes in reverse recovery?
The BAT54BR achieves 5 ns reverse recovery time due to its Schottky barrier construction, avoiding minority-carrier storage delay inherent in PN-junction diodes. Standard silicon diodes typically exhibit trr > 500 ns, causing switching losses and ringing in high-frequency applications. The BAT54BR thus enables cleaner transient suppression in DC-DC converters and high-speed data line protection.
What is the maximum power dissipation of the BAT54BR at room temperature?
The BAT54BR has a maximum power dissipation of 200 mW at TA = 25°C, derived from its 625°C/W junction-to-ambient thermal resistance and 150°C maximum junction temperature. At higher ambient temperatures, derating applies - e.g., 100 mW at 75°C - as shown in the power derating curve of the official BAT54BR datasheet.
Is the BAT54BR suitable for reverse polarity protection in 3.3 V systems?
Yes, the BAT54BR is well-suited for reverse polarity protection in 3.3 V systems: its 30 V VRRM provides ample margin, 1.00 V VF at 100 mA introduces only ~3% drop in a 3.3 V rail, and ≤2 μA IR ensures negligible standby current drain. Its dual-diode configuration also supports redundant or differential input protection schemes in such systems.
BAT54BR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 2 Pair Series Connection
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 25 V
- Operating Temperature - Junction:
- -65°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
BAT54BR FAQ
1.How can I place an order for BAT54BR through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54BR 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 BAT54BR reliable?
The price and inventory of BAT54BR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54BR is usually 5 days.
3.What payment methods are accepted for BAT54BR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54BR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54BR?
BAT54BR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54BR 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 BAT54BR?
For technical support, including BAT54BR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54BR requirements.
6.How does Aetrix verify that BAT54BR is sourced from the original manufacturer or authorized distributors?
All BAT54BR 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 BAT54BR meets industry standards.
7.What is the process for return or replacement of BAT54BR?
All BAT54BR units undergo pre-shipment inspection (PSI). If there is an issue with BAT54BR, 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 BAT54BR part is unused and in its original packaging.
Return procedure for BAT54BR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54BR Tags
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