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Taiwan Semiconductor Corporation BAT54CD
- Part No.:
- BAT54CD
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAT54CD.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:4,432
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Product details
Overview
BAT54CD 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 per diode, and 1.0 V forward voltage at 100 mA - used for high-speed clamping and polarity protection in compact DC power rails.
For engineers reviewing the BAT54CD datasheet, BAT54CD pinout, BAT54CD application, or BAT54CD equivalent, key selection criteria include its dual-common-cathode configuration, 5 ns reverse recovery time, low 2 µA reverse leakage at 25 V, 10 pF junction capacitance, and compatibility with automated SMT assembly under J-STD-002 solderability standards.
Technical Context
The BAT54CD integrates two independent Schottky diodes sharing a common cathode terminal (pin 5), enabling dual-channel reverse polarity protection or dual-rail clamping without discrete devices. Its low VF and fast trr support efficient operation in 1–10 MHz switching circuits.
Thermal resistance of 625°C/W (RθJA) and 150°C maximum junction temperature allow operation in ambient temperatures up to +85°C at full rated current when mounted on standard FR-4 PCBs with recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - supports DC input rails up to 24 V nominal with safety margin against transients |
| IF | 200 mA per diode - sufficient for low-power logic supply rail protection and signal-level clamping |
| VF @ 100 mA | 1.00 V - minimizes conduction loss in battery-powered or energy-sensitive circuits |
| trr | 5 ns - enables use in high-frequency (>10 MHz) transient suppression and signal routing |
| CT @ 1 V | 10 pF - low capacitance preserves signal integrity in RF detector or high-speed data line applications |
| IR @ 25 V | 2 µA - ensures minimal leakage in always-on backup power paths and sensor bias networks |
| PD | 200 mW - limits thermal rise in SOT-363 footprint without heatsinking under continuous load |
Pinout & Package
Package: SOT-363 (SC-70-6), surface-mount, moisture sensitivity level 1 (J-STD-020), matte tin-plated leads, UL 94V-0 molding compound, 6.99 mg typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode A | Input node for first clamping or polarity protection path |
| 2 | Cathode (Common) | Shared return path for both diodes; connects to system ground or reference rail |
| 3 | Anode of Diode B | Input node for second independent clamping function |
| 4 | No Connection | Internally unconnected; must remain floating or grounded per layout guidelines |
| 5 | Cathode (Common) | Redundant cathode terminal; electrically tied to pin 2 |
| 6 | No Connection | Internally unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-cathode Schottky diodes | Enables simultaneous protection of two independent supply rails with single-component footprint savings |
| 5 ns reverse recovery time | Supports clean switching in 10–50 MHz clock distribution and RF envelope detection |
| 1.0 V VF @ 100 mA | Reduces forward drop by ~30% vs. comparable silicon diodes, improving efficiency in low-voltage systems |
| J-STD-020 Level 1 MSL | Allows unlimited floor life and reflow without baking, simplifying SMT production flow |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green electronics manufacturing |
Applications
| USB Port Protection | Low-Voltage Logic Clamping |
|---|---|
Use Scenario: Protecting USB 2.0 data lines and VBUS from ESD-induced reverse current and overvoltage events. IC Role / Device Role / Timing Role: Dual-channel clamp limiting voltage excursions to ±0.3 V above/below rail using common-cathode topology. Use Value: Prevents latch-up in connected PHY ICs while maintaining signal edge fidelity due to 10 pF CT and sub-5 ns trr. | Use Scenario: Clamping I²C, SPI, or GPIO signals between mixed-voltage domains (e.g., 3.3 V MCU to 1.8 V sensor). IC Role / Device Role / Timing Role: Bidirectional level-shifting clamp with low VF ensuring minimal voltage offset during active-low signaling. Use Value: Enables reliable communication without external pull-ups exceeding 10 kΩ, thanks to 2 µA IR and 1.0 V VF. |
| Reverse Polarity Input Protection | DC-DC Converter Feedback Clamp |
Use Scenario: Safeguarding 5 V or 12 V DC input to embedded controllers against accidental reverse battery connection. IC Role / Device Role / Timing Role: Series-connected anode-to-input, cathode-to-rail; blocks reverse current while passing forward current with <1 V drop. Use Value: Eliminates need for P-channel MOSFET solution, reducing BOM count and PCB area in space-constrained designs. | Use Scenario: Limiting feedback node voltage swing in adjustable buck converters using resistive divider networks. IC Role / Device Role / Timing Role: Shunt clamp across upper feedback resistor to prevent regulator output overshoot during load transients. Use Value: Stabilizes regulation loop response with predictable 1.0 V clamping threshold and negligible parasitic capacitance impact. |
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. BAT54CWT | Same SOT-363 package, identical pinout, but 0.85 V VF @ 100 mA (lower), 1.5 µA IR @ 25 V (lower) | Slightly better efficiency in ultra-low-power battery monitoring; same clamping performance | Preferred where <100 mV forward drop reduction justifies sourcing from alternate vendor |
| Nexperia PMEG3002AEB | SOT-363, single diode (not dual), 30 V VRRM, 200 mA IF, 0.52 V VF @ 100 mA | Requires two devices for dual-rail use; superior VF but no common-cathode integration | Select when dual-diode integration is unnecessary and lowest possible conduction loss is critical |
Compared with BAT54CWT, the BAT54CD offers slightly higher VF but identical packaging and qualification; versus PMEG3002AEB, it delivers dual functionality in one footprint at the cost of modest VF penalty - making BAT54CD optimal for space-constrained dual-protection layouts.
Availability
BAT54CD is available at Aetrix Electronics and suitable for USB interface protection, low-voltage logic clamping, and reverse polarity input protection requiring stable component supply across industrial control, IoT endpoint, and consumer electronics programs.
Supply support for BAT54CD 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and consumer markets since 1979.
The BAT54 series belongs to TSC's high-reliability Schottky diode product line, designed specifically for compact, high-speed protection and signal conditioning in space-constrained portable and embedded systems.
FAQ
What is the pin configuration of the BAT54CD?
The BAT54CD uses a six-pin SOT-363 package with pins 1 and 3 as independent anodes, pins 2 and 5 as bonded common cathodes, and pins 4 and 6 as internal no-connect terminals. This dual-common-cathode arrangement allows simultaneous clamping of two signal or power lines to a shared reference rail without cross-talk.
Is the BAT54CD suitable for reverse polarity protection in 12 V automotive circuits?
The BAT54CD is rated for 30 V VRRM and 200 mA IF, making it appropriate for 12 V nominal systems with transient margins. However, it is not AEC-Q101 qualified; for automotive-grade reverse polarity protection, consider AEC-qualified alternatives unless used in non-safety-critical accessory modules.
What is the maximum operating temperature for the BAT54CD?
The BAT54CD has a maximum junction temperature (TJ) of +150°C and a storage temperature range of −65°C to +150°C. When operated at full 200 mA DC current in still air, derating begins above +85°C ambient due to its 625°C/W RθJA, requiring thermal relief for sustained high-temp use.
Does the BAT54CD meet lead-free and RoHS requirements?
Yes, the BAT54CD is RoHS compliant and halogen-free per IEC 61249-2-21. Its matte tin-plated leads meet J-STD-002 solderability standards, and the molding compound satisfies UL 94V-0 flammability rating - fully aligned with modern green electronics manufacturing requirements.
How does the BAT54CD compare to the BAT54AD in terms of electrical performance?
The BAT54CD and BAT54AD share identical absolute maximum ratings and electrical specifications - including VRRM = 30 V, IF = 200 mA, VF = 1.0 V @ 100 mA, and trr = 5 ns - differing only in marking code (KL7 vs. KL6) and internal die variant. Both are functionally interchangeable in all circuit implementations.
BAT54CD 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 Common Cathode
- 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
BAT54CD FAQ
1.How can I place an order for BAT54CD through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54CD 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 BAT54CD reliable?
The price and inventory of BAT54CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54CD is usually 5 days.
3.What payment methods are accepted for BAT54CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54CD?
BAT54CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54CD 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 BAT54CD?
For technical support, including BAT54CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54CD requirements.
6.How does Aetrix verify that BAT54CD is sourced from the original manufacturer or authorized distributors?
All BAT54CD 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 BAT54CD meets industry standards.
7.What is the process for return or replacement of BAT54CD?
All BAT54CD units undergo pre-shipment inspection (PSI). If there is an issue with BAT54CD, 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 BAT54CD part is unused and in its original packaging.
Return procedure for BAT54CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54CD Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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