My Inquiry
My Account
Taiwan Semiconductor Corporation BAT54SD RFG
- Part No.:
- BAT54SD RFG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAT54SD RFG.pdf
- Description:
- SOT-363, 30V, 0.2A, SCHOTTKY DIO
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BAT54SD RFG from Taiwan Semiconductor is a dual-channel Schottky barrier diode in SOT-363 package, rated for 30 V repetitive peak reverse voltage and 200 mA forward current per diode, with 1.0 V forward voltage at 100 mA - used for high-speed polarity protection and clamping in compact DC power rails.
For engineers reviewing the BAT54SD RFG datasheet, BAT54SD RFG pinout, BAT54SD RFG application, or BAT54SD RFG equivalent, key selection factors include its dual common-cathode configuration, 5 ns reverse recovery time, 10 pF junction capacitance at 1 V, moisture sensitivity level 1 rating, and RoHS/halogen-free compliance for automated SMT assembly.
Technical Context
The BAT54SD RFG integrates two independent Schottky diodes sharing a common cathode terminal in a single SOT-363 (SC-70-6) surface-mount package. Its low VF and fast trr enable efficient reverse polarity protection and transient clamping without significant conduction loss or switching delay.
Each diode exhibits TJ max = 150°C, RθJA = 625°C/W, and IR ≤ 2 μA at VR = 25 V, supporting operation in thermally constrained environments. The device meets JESD201 Class 1A whisker resistance and UL 94V-0 flammability requirements for industrial-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum reverse blocking voltage per diode before breakdown |
| IF | 200 mA - continuous forward current rating per diode at TA = 25°C |
| VF @ 100 mA | 1.00 V - forward drop determining conduction loss in protection circuits |
| trr | 5 ns - reverse recovery time enabling use in >10 MHz switching applications |
| CT @ 1 V | 10 pF - junction capacitance limiting high-frequency signal coupling in RF paths |
| IR @ 25 V | ≤2 μA - leakage current affecting standby power in battery-powered systems |
| TJ max | +150°C - maximum junction temperature defining thermal derating envelope |
Pinout & Package
SOT-363 (SC-70-6) plastic surface-mount package with 6 terminals, matte tin-plated leads, UL 94V-0 molding compound, and moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Input node for first Schottky path; connects to protected supply rail |
| 2 | Cathode (Common) | Shared cathode node for both diodes; ties to system ground or reference |
| 3 | Anode of Diode 2 | Input node for second Schottky path; enables dual-rail or redundancy use |
| 4 | No Connect | Internally unconnected; must be left floating or grounded per layout guidelines |
| 5 | Cathode (Common) | Redundant cathode terminal; electrically tied to Pin 2 |
| 6 | No Connect | Internally unconnected; must be left floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-cathode Schottky diodes | Enables simultaneous reverse polarity protection on two independent input lines with shared ground return |
| 5 ns reverse recovery time | Supports high-frequency clamping in DC-DC converter feedback loops and digital I/O protection |
| Moisture sensitivity level 1 | Eliminates bake-out requirement prior to reflow, reducing manufacturing cost and cycle time |
| RoHS and halogen-free compliance | Meets IPC-J-STD-609 and IEC 61249-2-21 for environmentally regulated end equipment |
| Junction-to-ambient thermal resistance | 625°C/W allows 200 mW dissipation at +25°C ambient without heatsinking |
Applications
| USB Port Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Preventing damage from accidental reverse connection of USB peripherals or cables. IC Role / Device Role / Timing Role: Dual-anode Schottky clamp ensuring correct polarity on VBUS and data lines while minimizing voltage drop. Use Value: 1.0 V VF at 100 mA limits insertion loss; 5 ns trr avoids signal distortion on USB 2.0 D+/D− lines. | Use Scenario: Safeguarding analog sensor inputs against ESD and miswiring in factory automation modules. IC Role / Device Role / Timing Role: Common-cathode dual diode routing fault current to ground during overvoltage transients. Use Value: 2 μA IR at 25 V ensures minimal loading on high-impedance sensor outputs; SOT-363 fits tight PCB layouts. |
| DC Power Rail Clamping | Low-Voltage Microcontroller I/O Protection |
Use Scenario: Suppressing inductive kickback and load-dump spikes on 3.3 V/5 V microcontroller power supplies. IC Role / Device Role / Timing Role: Fast-switching Schottky pair clamping rail voltage to safe levels during transient events. Use Value: 30 V VRRM accommodates 24 V industrial bus surges; 10 pF CT avoids resonance with decoupling capacitors. | Use Scenario: Protecting GPIO pins from ESD and overvoltage when interfacing with external switches or displays. IC Role / Device Role / Timing Role: Low-capacitance dual diode shunting excess voltage to VDD/GND rails before latch-up occurs. Use Value: 10 pF CT preserves signal integrity up to 100 MHz; 200 mA IF supports multi-pin parallel clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2004LKQ-7 | Single-channel, SOT-23 package, 20 V VRRM, 240 mA IF | Lacks dual-diode integration; requires two devices for same function | Choose when board space permits discrete placement and lower reverse voltage suffices |
| NSR0230HT1G | Single Schottky, SOD-523, 30 V VRRM, 200 mA IF, 0.45 V VF @ 100 mA | Lower VF but no dual configuration; higher IR (10 μA) | Prefer for ultra-low-drop single-rail protection where dual functionality is unnecessary |
Compared with DMN2004LKQ-7 and NSR0230HT1G, the BAT54SD RFG uniquely delivers dual common-cathode Schottky functionality in one SOT-363 footprint - reducing component count and PCB area while maintaining 30 V blocking and 5 ns speed for compact, high-reliability power interface designs.
Availability
BAT54SD RFG is available at Aetrix Electronics and suitable for USB port protection, industrial sensor interfaces, DC power rail clamping, and low-voltage microcontroller I/O protection requiring stable component supply across production volumes.
Supply support for BAT54SD RFG 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 protection components for industrial and consumer markets.
The BAT54 series belongs to TSC's high-speed Schottky diode product line, engineered specifically for compact, reliable reverse polarity and transient voltage protection in space-constrained SMT applications.
FAQ
What is the pin configuration of BAT54SD RFG?
The BAT54SD RFG uses a SOT-363 package with six terminals: Pins 1 and 3 are anodes of two independent Schottky diodes, Pins 2 and 5 are internally connected common cathodes, and Pins 4 and 6 are no-connect terminals. This configuration enables dual-rail protection with shared ground return without requiring external wiring.
Does BAT54SD RFG support reflow soldering without baking?
Yes, BAT54SD RFG has moisture sensitivity level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into standard lead-free reflow profiles without pre-bake. This eliminates process steps and reduces risk of moisture-induced popcorning during assembly.
What is the maximum reverse leakage current for BAT54SD RFG?
The BAT54SD RFG specifies a maximum reverse leakage current of 2 μA per diode at VR = 25 V and TJ = 25°C. At elevated temperatures or higher reverse voltages, leakage increases - e.g., up to ~20 μA at 125°C and 25 V - which must be accounted for in low-power battery applications.
Can BAT54SD RFG replace BAT54CD RFG in existing designs?
No - BAT54SD RFG and BAT54CD RFG differ in internal configuration: BAT54SD RFG is dual common-cathode, while BAT54CD RFG is dual common-anode. Swapping them would invert protection logic and cause functional failure unless circuit topology is revised to match the cathode-shared architecture of BAT54SD RFG.
Is BAT54SD RFG suitable for automotive applications?
The BAT54SD RFG is not AEC-Q200 qualified and is not recommended for automotive safety-critical systems. It operates across –65°C to +150°C junction range and meets industrial reliability standards, making it appropriate for under-hood non-safety modules only when validated per customer-specific stress testing and qualification protocols.
BAT54SD RFG 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
BAT54SD RFG FAQ
1.How can I place an order for BAT54SD RFG through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54SD RFG 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 BAT54SD RFG reliable?
The price and inventory of BAT54SD RFG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54SD RFG is usually 5 days.
3.What payment methods are accepted for BAT54SD RFG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54SD RFG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54SD RFG?
BAT54SD RFG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54SD RFG 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 BAT54SD RFG?
For technical support, including BAT54SD RFG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54SD RFG requirements.
6.How does Aetrix verify that BAT54SD RFG is sourced from the original manufacturer or authorized distributors?
All BAT54SD RFG 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 BAT54SD RFG meets industry standards.
7.What is the process for return or replacement of BAT54SD RFG?
All BAT54SD RFG units undergo pre-shipment inspection (PSI). If there is an issue with BAT54SD RFG, 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 BAT54SD RFG part is unused and in its original packaging.
Return procedure for BAT54SD RFG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54SD RFG Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
