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Diodes Incorporated BAT54CTC
- Part No.:
- BAT54CTC
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54CTC.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:7,414
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Product details
Overview
BAT54CTC 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 delivers low-loss rectification and fast switching (5 ns reverse recovery) in compact DC-DC converter outputs and high-frequency signal clamping circuits.
For engineers reviewing the BAT54CTC datasheet, BAT54CTC pinout, BAT54CTC application, or BAT54CTC equivalent, key selection criteria include its dual common-cathode configuration, 5 ns trr, 330 mW power dissipation at 25°C, and guaranteed 30 V VR rating under continuous operation.
Technical Context
The BAT54CTC integrates two independent Schottky diodes sharing a common cathode terminal, enabling synchronous rectification or dual-path clamping in space-constrained layouts. Its epitaxial construction ensures stable VF across temperature (135–530 mV from 0.1 mA to 100 mA) and low junction capacitance (7.5–10 pF at 1 V).
Designed for high-speed switching, it sustains repetitive peak forward current up to 300 mA and non-repetitive surges to 600 mA (t < 1 s), with thermal derating to 100°C junction temperature for simultaneous dual-device operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Dual common-cathode Schottky diode - enables shared cathode routing for compact dual-path protection or rectification |
| VR (Continuous) | 30 V - supports 24 V rail clamping and 12 V/5 V DC-DC output rectification without breakdown |
| IF (Continuous) | 200 mA - sufficient for low-power logic-level signal steering and auxiliary supply paths |
| VF @ 10 mA | 400 mV - reduces conduction loss by ~60% vs. standard silicon PN diodes in same bias condition |
| trr | 5 ns - enables reliable operation in >10 MHz switching applications such as RF detector front-ends |
| Ptot @ 25°C | 330 mW - defines maximum steady-state power handling before thermal shutdown in SOT-23 footprint |
Pinout & Package
SOT-23 surface-mount package with gull-wing leads; 3-pin configuration where Pin 1 and Pin 3 are anodes, Pin 2 is the common cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Independent input path for first Schottky junction; routed separately for dual-channel clamping |
| Pin 2 | Common Cathode | Shared return node for both diodes - simplifies PCB layout and reduces ground loop area |
| Pin 3 | Anode of Diode 2 | Independent input path for second Schottky junction; enables differential or redundant signal paths |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VF = 400 mV @ 10 mA - minimizes voltage drop and self-heating in battery-powered signal paths |
| Fast reverse recovery | trr = 5 ns - prevents charge storage distortion in high-frequency envelope detection |
| Dual common-cathode topology | Single-package dual diode with shared cathode - eliminates need for two discrete SOT-23s and matching layout |
| High surge capability | IFSM = 600 mA (t < 1 s) - withstands transient inrush during hot-plug or power-up sequencing |
Applications
| USB Data Line Protection | DC-DC Converter Output Rectification |
|---|---|
Use Scenario: Clamping ESD transients on USB D+ and D− lines while preserving signal integrity up to 480 Mbps. IC Role / Device Role / Timing Role: Dual Schottky clamp protecting bidirectional data lines with shared cathode tied to VBUS or ground reference. Use Value: 5 ns trr avoids signal edge degradation; 400 mV VF ensures minimal insertion loss during normal operation. | Use Scenario: Synchronous rectification in 3.3 V/5 V buck converter outputs for portable electronics. IC Role / Device Role / Timing Role: Low-VF dual diode replacing single MOSFETs in cost-sensitive designs where gate drive complexity must be avoided. Use Value: 200 mA IF rating and 30 V VR support 5 V output rails with margin; SOT-23 footprint saves board area vs. SO-8 alternatives. |
| RF Detector Input Stage | Logic-Level Signal Steering |
Use Scenario: Demodulating AM signals in 900 MHz ISM-band receivers using zero-bias detection. IC Role / Device Role / Timing Role: Low-capacitance (7.5 pF) Schottky pair acting as envelope detector with minimal loading on tuned tank circuit. Use Value: 10 pF max CD at 1 V reverse bias preserves Q-factor of 1 nH–100 pF resonators; 5 ns trr enables accurate demodulation. | Use Scenario: Selecting between two microcontroller GPIO outputs driving a shared LED or indicator line. IC Role / Device Role / Timing Role: OR-ing diode network with common cathode connected to load, anodes driven by separate I/O pins. Use Value: 400 mV VF ensures full logic-high recognition at 3.3 V MCU outputs; dual integration eliminates discrete placement error risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99 | Common-cathode dual, but higher VF (≈600 mV @ 10 mA) and slower trr (4 ns typical, but not specified min/max) | Less suitable for ultra-low-loss 3.3 V signal paths; acceptable for general-purpose clamping | Select BAV99 only when VF tolerance >500 mV and trr consistency is non-critical |
| NSR0230HT1G | Single Schottky in SOD-123; no dual configuration - requires two devices for common-cathode function | Increases PCB area and layout complexity; lacks integrated common node | Choose NSR0230HT1G only if discrete replacement is mandated by existing layout or procurement constraints |
Compared with BAV99 and NSR0230HT1G, BAT54CTC uniquely combines verified 400 mV VF at 10 mA, guaranteed 5 ns trr, and true dual common-cathode integration - making it optimal for space- and loss-sensitive dual-path applications where thermal coupling and layout symmetry matter.
Availability
BAT54CTC is available at Aetrix Electronics and suitable for USB interface protection, DC-DC converter rectification, and RF detector front-ends requiring stable component supply across production volumes and long-lifecycle programs.
Supply support for BAT54CTC 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 specializing in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and communications markets.
The BAT54 series targets high-frequency, low-loss discrete signal conditioning - designed specifically for compact, thermally efficient Schottky applications in portable and high-density electronics.
FAQ
What is the maximum junction temperature for continuous dual-diode operation?
The BAT54CTC is rated for 125°C maximum junction temperature under single-diode operation. For simultaneous continuous use of both diodes, the datasheet specifies derating to 100°C Tj to maintain reliability and prevent thermal runaway due to shared cathode thermal path.
Can BAT54CTC replace BAT54C in existing designs?
Yes - BAT54CTC and BAT54C share identical electrical specifications, SOT-23 package, and pinout (Pin 1 = Anode 1, Pin 2 = Common Cathode, Pin 3 = Anode 2). The "T" suffix denotes tape-and-reel packaging; electrical and thermal performance are fully interchangeable.
Is the 30 V VR rating absolute maximum or recommended operating value?
The 30 V VR is the absolute maximum continuous reverse voltage - exceeding this risks irreversible avalanche breakdown. Designers should maintain ≤24 V reverse bias in 85°C ambient environments to ensure margin against temperature-induced leakage increase and long-term reliability.
How does the dual common-cathode configuration affect PCB layout versus two singles?
The shared cathode (Pin 2) eliminates one net connection and reduces copper pour area by ~35% compared to two discrete SOT-23 diodes. This lowers parasitic inductance in high-dI/dt paths and improves thermal coupling - critical for matched switching behavior in clamping or OR-ing applications.
BAT54CTC 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
BAT54CTC FAQ
1.How can I place an order for BAT54CTC through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54CTC 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 BAT54CTC reliable?
The price and inventory of BAT54CTC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54CTC is usually 5 days.
3.What payment methods are accepted for BAT54CTC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54CTC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54CTC?
BAT54CTC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54CTC 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 BAT54CTC?
For technical support, including BAT54CTC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54CTC requirements.
6.How does Aetrix verify that BAT54CTC is sourced from the original manufacturer or authorized distributors?
All BAT54CTC 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 BAT54CTC meets industry standards.
7.What is the process for return or replacement of BAT54CTC?
All BAT54CTC units undergo pre-shipment inspection (PSI). If there is an issue with BAT54CTC, 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 BAT54CTC part is unused and in its original packaging.
Return procedure for BAT54CTC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54CTC Tags
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Diodes Incorporated
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BAV99LT1G
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