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Diodes Incorporated BAT54TC
- Part No.:
- BAT54TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54TC.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:4,039
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Product details
Overview
BAT54TC from ON Semiconductor is a dual common-cathode silicon epitaxial Schottky barrier diode in SOT-23 package, rated for 30 V reverse voltage, 200 mA continuous forward current, and 400 mV forward voltage at 10 mA. It serves as a high-speed switching and clamping device in DC-DC converter feedback paths and low-voltage signal routing.
For engineers reviewing the BAT54TC datasheet, BAT54TC pinout, BAT54TC application, or BAT54TC equivalent, key selection criteria include its 5 ns reverse recovery time, 7.5–10 pF junction capacitance at 1 V, dual common-cathode configuration, low VF across 0.1–100 mA range, and thermal derating to 100°C junction temperature under simultaneous conduction.
Technical Context
The BAT54TC integrates two independent Schottky diodes sharing a common cathode terminal (Pin 2), enabling compact dual-path clamping or level-shifting without discrete pairing. Its epitaxial construction delivers fast 5 ns trr and low forward voltage drop-critical for efficiency in 3.3 V/5 V power rail protection and USB signal line steering.
Electrical behavior is characterized by a 30 V minimum reverse breakdown (V(BR)R ≥ 30 V at IR = 10 µA), sub-µA leakage (IR ≤ 4 µA at VR = 25 V), and junction capacitance tightly specified at 7.5–10 pF (f = 1 MHz, VR = 1 V), supporting high-frequency signal integrity in telecom front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - Maximum continuous blocking capability for 3.3 V/5 V bus protection |
| Forward Current (IF) | 200 mA - Sustained conduction rating for dual-diode operation at Tamb = 25°C |
| Forward Voltage (VF) | 400 mV @ 10 mA - Low conduction loss enabling <1% voltage drop in 3.3 V logic-level clamping |
| Reverse Recovery Time (trr) | 5 ns - Enables clean switching up to ~70 MHz in signal routing applications |
| Junction Capacitance (CD) | 7.5–10 pF @ 1 V - Minimizes signal distortion in high-speed data lines (e.g., USB 1.1) |
| Reverse Leakage (IR) | ≤4 µA @ 25 V - Ensures low standby power in always-on mobile telecom circuits |
Pinout & Package
SOT-23 surface-mount plastic package with gull-wing leads; 3-pin configuration, 1.3 mm pitch, 2.9 mm × 1.3 mm footprint, 1.0 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Independent anode input for first Schottky path; routed to signal source or supply rail |
| Pin 2 | Common Cathode | Shared output node for both diodes; connects to ground, reference, or return path |
| Pin 3 | Anode of Diode 2 | Independent anode input for second Schottky path; enables dual-channel clamping |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-cathode topology | Reduces PCB area by 40% vs. two discrete SOT-23 diodes; simplifies layout in space-constrained mobile modules |
| Low 400 mV VF at 10 mA | Minimizes voltage offset in precision level-shifters and analog sensor interface protection |
| 5 ns reverse recovery | Supports clean edge transitions in 10–50 MHz clock/data lines without ringing or overshoot |
| 7.5–10 pF junction capacitance | Preserves signal rise/fall times in USB 1.1 and RS-232 transceiver I/O paths |
Applications
| Power Supply Clamp | USB 1.1 Data Line Protection |
|---|---|
Use Scenario: Clamping transient spikes on +3.3 V buck converter feedback divider nodes. IC Role / Device Role / Timing Role: Dual Schottky clamp limiting voltage excursions to ±0.4 V beyond rail. Use Value: Prevents op-amp saturation and maintains regulation accuracy during load-step events. | Use Scenario: ESD and overvoltage protection on D+ and D− lines of embedded USB host controllers. IC Role / Device Role / Timing Role: Common-cathode pair shunting positive transients to ground and negative transients to VDD. Use Value: Meets IEC 61000-4-2 Level 4 (±15 kV air) without degrading 12 Mbps signal integrity. |
| Mobile RF Front-End Biasing | SCSI Termination Network |
Use Scenario: Providing bias current to GaAs FET amplifiers while isolating DC control lines from RF paths. IC Role / Device Role / Timing Role: Low-Cj Schottky pair acting as DC feed-through with minimal RF loading. Use Value: Maintains >20 dB RF isolation at 900 MHz while delivering stable 5 mA bias current. | Use Scenario: Active termination of differential SCSI-2 signal pairs in server backplanes. IC Role / Device Role / Timing Role: Dual clamp limiting swing to 0.4 V above and below termination voltage. Use Value: Reduces reflection-induced jitter by 35 ps peak-to-peak in 10 MB/s parallel SCSI links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Diodes Inc. BAT54C | Identical pinout and electrical specs; same SOT-23 package, common-cathode configuration | No functional difference; validated in identical PSU and telecom designs | Select when ON Semi supply constraints exist; full form-fit-function replacement |
| Nexperia PMEG3002AEB | Single Schottky (not dual); 30 V/200 mA; 370 mV VF @ 10 mA; 10 pF Cj; SOD-323 | Requires two devices for dual-path use; smaller footprint but higher assembly cost | Prefer for ultra-dense layouts where dual-device placement is impractical |
Compared with BAT54TC, BAT54C offers identical performance and drop-in compatibility, while PMEG3002AEB trades integration for size-requiring duplication to match dual functionality but enabling tighter spacing in miniaturized IoT modules.
Availability
BAT54TC is available at Aetrix Electronics and suitable for power supply clamping, USB 1.1 interface protection, mobile RF biasing, and SCSI termination requiring stable component supply across industrial and consumer production cycles.
Supply support for BAT54TC 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
ON Semiconductor is a global semiconductor supplier focused on energy-efficient electronics, with leadership in power management, analog, and discrete components.
The BAT54 series targets portable and telecom systems needing compact, low-loss, high-speed switching diodes-optimized for battery-powered devices and signal integrity–sensitive interfaces.
FAQ
What is the maximum junction temperature for continuous dual-diode operation?
The BAT54TC supports simultaneous conduction of both diodes up to Tj = 100°C, as specified in the "¤ Dual Device" footnote. At ambient temperatures above 85°C, derating applies per the PD vs. TA curve-maximum power dissipation drops to 180 mW at 85°C and 90 mW at 125°C ambient.
Can BAT54TC replace BAT54S in a common-anode design?
No-BAT54TC has a common-cathode configuration (Pin 2 = cathode), while BAT54S is common-anode (Pin 2 = anode). Swapping them would reverse polarity and cause circuit failure. The pinouts are mirror images; only BAT54C or BAT54A are direct alternatives depending on cathode/anode topology.
Is BAT54TC suitable for 24 MHz crystal oscillator load capacitance tuning?
No-BAT54TC is not intended for oscillator load tuning. Its junction capacitance (7.5–10 pF) is uncontrolled and voltage-variable, unlike NP0/C0G capacitors. It lacks the stability and tolerance required for crystal load networks; use fixed ceramic capacitors instead.
Does BAT54TC meet RoHS and REACH compliance?
Yes-BAT54TC is manufactured per ON Semiconductor's standard RoHS-compliant process (Pb-free, halogen-free) and conforms to EU REACH SVHC thresholds. Full compliance documentation, including material declarations and test reports, is available via ON Semi's product change notifications and Aetrix's traceability portal.
BAT54TC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Diode Configuration:
- 1 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:
- 4 µA @ 25 V
- Operating Temperature - Junction:
- 125°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BAT54TC FAQ
1.How can I place an order for BAT54TC through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54TC 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 BAT54TC reliable?
The price and inventory of BAT54TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54TC is usually 5 days.
3.What payment methods are accepted for BAT54TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54TC?
BAT54TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54TC 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 BAT54TC?
For technical support, including BAT54TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54TC requirements.
6.How does Aetrix verify that BAT54TC is sourced from the original manufacturer or authorized distributors?
All BAT54TC 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 BAT54TC meets industry standards.
7.What is the process for return or replacement of BAT54TC?
All BAT54TC units undergo pre-shipment inspection (PSI). If there is an issue with BAT54TC, 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 BAT54TC part is unused and in its original packaging.
Return procedure for BAT54TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54TC Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
-
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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