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Taiwan Semiconductor Corporation BAT54BR RF
- Part No.:
- BAT54BR RF
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAT54BR RF.pdf
- Description:
- SOT-363, 30V, 0.2A, SCHOTTKY DIO
- Quantity:
- Payment:
- Shipping:
Inventory:8,081
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Product details
Overview
BAT54BR RF from Taiwan Semiconductor is a dual-channel Schottky barrier diode in SOT-363 package, rated for 30 V repetitive peak reverse voltage, 200 mA forward current, and 1.0 V forward voltage at 100 mA - used for high-speed voltage clamping and reverse polarity protection in compact DC power rails.
For engineers reviewing the BAT54BR RF datasheet, BAT54BR RF pinout, BAT54BR RF application, or BAT54BR RF equivalent, key selection criteria include low VF (≤1.0 V @ 100 mA), fast trr (≤5 ns), low IR (≤2 μA @ 25 V), SOT-363 footprint compatibility, and RoHS/halogen-free compliance for consumer and industrial PCB designs.
Technical Context
The BAT54BR RF integrates two independent Schottky diodes in a single SOT-363 package with common-cathode configuration (per marking code KLB and pinout validation). It operates across –65°C to +150°C junction temperature range and supports pulse forward surge up to 600 mA (t < 1 s).
Thermal resistance RθJA is 625°C/W, limiting continuous power dissipation to 200 mW at TA = 25°C. Junction capacitance is ≤10 pF at 1 MHz / 1 V reverse bias, enabling use in signal-level clamping and RF detector front-ends below 1 GHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum reverse blocking voltage before breakdown; defines safe operating range in 24 V or lower DC systems |
| IF | 200 mA - continuous forward current per diode; suitable for low-power logic-level protection and signal routing |
| VF @ 100 mA | 1.00 V - low conduction loss enables efficient clamping without excessive heat generation |
| trr | 5 ns - ultra-fast recovery supports switching frequencies >10 MHz in flyback snubbers and data line protection |
| IR @ 25 V | 2 μA - minimal leakage preserves battery life in always-on circuits and sensor interfaces |
| CT @ 1 V | 10 pF - low junction capacitance avoids signal distortion in high-speed digital I/O and RF detector paths |
| TJ max | +150°C - extended thermal rating allows operation in sealed enclosures or near power components |
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 moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Input node for first Schottky path; connects to protected signal or supply rail |
| 2 | Cathode (Common) | Shared cathode node for both diodes; ties to reference ground or return path |
| 3 | Anode of Diode 2 | Independent input node for second Schottky path; enables dual-rail or differential protection |
| 4 | No Connect | Internally unconnected; must be left floating or grounded per layout guidelines |
| 5 | No Connect | Internally unconnected; must be left floating or grounded per layout guidelines |
| 6 | Cathode (Common) | Redundant cathode terminal; electrically tied to Pin 2 for improved thermal/current sharing |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching speed | 5 ns reverse recovery time enables use in >10 MHz transient suppression and data-line ESD clamps |
| Low forward voltage drop | 1.0 V @ 100 mA reduces conduction loss by ~30% vs. standard silicon diodes in 3.3 V/5 V rails |
| Common-cathode dual-diode topology | Single SOT-363 footprint replaces two discrete diodes, saving 3.2 mm² PCB area and reducing assembly cost |
| Moisture sensitivity level 1 | No bake requirement before reflow; compatible with standard J-STD-020 assembly processes |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green electronics manufacturing |
Applications
| USB Port Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Clamping ESD transients and overvoltage spikes on USB D+ and D− lines during hot-plug events. IC Role / Device Role / Timing Role: Dual Schottky clamp protecting bidirectional data lines with matched VF and low CT. Use Value: Prevents damage to USB transceivers while maintaining signal integrity up to 480 Mbps due to ≤10 pF capacitance. | Use Scenario: Reverse polarity protection for 24 V analog sensor outputs feeding PLC input modules. IC Role / Device Role / Timing Role: Low-VF series diode blocking reverse current during incorrect wiring. Use Value: Limits voltage drop to ≤1.0 V at 200 mA, preserving headroom for 4–20 mA loop compliance. |
| DC-DC Converter Snubber | RF Detector Circuit |
Use Scenario: Absorbing turn-off voltage spikes across synchronous rectifier MOSFETs in buck converters. IC Role / Device Role / Timing Role: Fast-recovery clamp diode placed across drain-source to limit dv/dt stress. Use Value: 5 ns trr ensures effective energy capture without oscillation or secondary breakdown. | Use Scenario: Demodulating AM signals in sub-1 GHz ISM band receivers (e.g., 315 MHz/433 MHz remote controls). IC Role / Device Role / Timing Role: Zero-bias RF detector diode converting RF envelope to baseband voltage. Use Value: 10 pF CT and low VF enable detection sensitivity down to –20 dBm with minimal harmonic distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40201MR6T1G | Same SOT-363 package; 40 V VRRM, 200 mA IF, 1.0 V VF @ 100 mA, but higher IR (5 μA @ 25 V) | Higher reverse voltage margin suits 36 V automotive subsystems; increased leakage limits use in ultra-low-power IoT sensors | Select when VRRM > 30 V is required and leakage tolerance >2 μA is acceptable |
| Diodes Incorporated BAV99LT1G | Dual series-switching topology (anode-to-anode); 70 V VRRM, 215 mA IF, 1.25 V VF @ 50 mA, 4 ns trr | Optimized for high-voltage switching, not clamping; higher VF increases conduction loss in low-voltage rails | Prefer for high-side switching where common-cathode topology is not needed and higher VRRM is critical |
Compared with BAT54BR RF, NSS40201MR6T1G offers higher reverse voltage but trades off leakage performance, while BAV99LT1G provides faster switching and higher voltage rating but uses a different internal configuration that affects circuit topology and forward loss in clamping roles.
Availability
BAT54BR RF is available at Aetrix Electronics and suitable for USB interface protection, industrial sensor power conditioning, DC-DC snubbing, and RF detector circuits requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for BAT54BR RF 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 industrial, computing, and consumer markets.
The BAT54 family targets high-reliability, space-constrained applications requiring fast, low-loss diode functions - optimized for SMT assembly, thermal robustness, and regulatory compliance in global electronics production.
FAQ
What is the pin configuration of BAT54BR RF?
The BAT54BR RF uses a common-cathode dual-diode configuration in SOT-363: Pin 1 = Anode 1, Pin 2 = Common Cathode, Pin 3 = Anode 2, Pins 4–5 = No Connect, Pin 6 = Common Cathode (redundant). This layout matches the KLB marking code and is validated in TSC's H2111 datasheet revision.
Is BAT54BR RF suitable for reverse polarity protection in 24 V systems?
Yes - BAT54BR RF supports 30 V VRRM and 200 mA IF, making it appropriate for 24 V nominal systems with transient margin. Its 1.0 V VF at 100 mA minimizes voltage drop, preserving sufficient headroom for downstream regulators or sensors in BAT54BR RF-based protection circuits.
Does BAT54BR RF meet halogen-free and RoHS requirements?
Yes - BAT54BR RF is certified halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. These qualifications are explicitly stated in the "Features" section of the official Taiwan Semiconductor datasheet (H2111).
What is the thermal resistance of BAT54BR RF?
The junction-to-ambient thermal resistance (RθJA) of BAT54BR RF is 625°C/W under standard JEDEC test conditions. This value assumes a 1-inch² copper pad on a single-layer board and defines the maximum power dissipation (200 mW at 25°C ambient) before exceeding the +150°C TJ limit.
Can BAT54BR RF replace BAT54CD RF in a design?
No - BAT54BR RF and BAT54CD RF share the same SOT-363 package and electrical ratings but differ in internal topology: BAT54BR RF is common-cathode, while BAT54CD RF is common-anode. Swapping them requires schematic and layout changes to maintain correct polarity and functionality in BAT54BR RF applications.
BAT54BR RF 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
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 200mA
- 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
- Capacitance @ Vr, F:
- 10pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAT54BR RF FAQ
1.How can I place an order for BAT54BR RF through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54BR RF 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 RF reliable?
The price and inventory of BAT54BR RF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54BR RF is usually 5 days.
3.What payment methods are accepted for BAT54BR RF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54BR RF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54BR RF?
BAT54BR RF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54BR RF 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 RF?
For technical support, including BAT54BR RF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54BR RF requirements.
6.How does Aetrix verify that BAT54BR RF is sourced from the original manufacturer or authorized distributors?
All BAT54BR RF 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 RF meets industry standards.
7.What is the process for return or replacement of BAT54BR RF?
All BAT54BR RF units undergo pre-shipment inspection (PSI). If there is an issue with BAT54BR RF, 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 RF part is unused and in its original packaging.
Return procedure for BAT54BR RF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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