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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Diodes Incorporated BAT54C-7

Name: BAT54C-7
Brand: Diodes Incorporated
SKU: BAT54C-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BAT54C-7

Manufacturer:: Diodes Incorporated

Category:: Diode Arrays

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BAT54C-7.pdf

Description:: DIODE ARR SCHOT 30V 200MA SOT233

Quantity:: RFQ Add To RFQ list

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Inventory:8,613

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Product details

Overview

BAT54C-7 from Diodes Incorporated is a dual-common-cathode surface-mount Schottky barrier diode in SOT23 package, rated for 30V peak reverse voltage and 200mA average forward current, with 0.8V max forward voltage at 100mA and 2μA max reverse leakage at 25V, used for polarity protection and signal clamping in low-voltage DC power rails.

For engineers reviewing the BAT54C-7 datasheet, BAT54C-7 pinout, BAT54C-7 application, or BAT54C-7 equivalent, key selection criteria include dual-cathode configuration, fast 5ns reverse recovery time, low-capacitance (10pF at 1V), PN junction guard ring for ESD robustness, and JEDEC-qualified reliability for industrial and automotive-adjacent designs.

Technical Context

The BAT54C-7 integrates two independent Schottky diodes sharing a common cathode terminal, enabling bidirectional clamping or dual-path rectification in compact layouts. Its low 0.8V forward voltage drop minimizes conduction loss in 3.3V/5V systems, while the 5ns reverse recovery time supports high-frequency switching up to ~100MHz.

Designed with a PN junction guard ring, it achieves 2μA reverse leakage at 25V and withstands transient events per IEC 61000-4-2 Level 4 (±15kV air, ±8kV contact). Thermal resistance of 500°C/W (Junction-to-Ambient) requires derating above +75°C ambient per Figure 4.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	30 V - Maximum blocking voltage before avalanche; sets upper limit for input rail protection in 24V systems.
I_O	200 mA - Continuous DC current handling per diode; suitable for logic-level signal routing and low-power bias networks.
V_F max	0.8 V @ 100 mA - Low conduction loss enables efficient clamping in battery-powered sensors and USB interface lines.
I_R max	2 μA @ 25 V - Tight leakage spec ensures minimal standby current drain in always-on monitoring circuits.
t_RR	5 ns - Fast recovery enables use in 10–50 MHz clock line clamping without signal distortion.
C_T	10 pF @ 1 V - Low junction capacitance preserves signal integrity in high-speed data lines (e.g., I²C, SPI).
R_θJA	500 °C/W - Requires thermal pad or copper pour on PCB for sustained >100mA operation above +75°C ambient.

Pinout & Package

Package: SOT23 (Standard), 3-terminal plastic molded case, 2.9mm × 1.3mm × 1.0mm body, matte tin-plated alloy-42 leadframe, RoHS-compliant "Green" compound (UL 94V-0).

Pin/Terminal	Circuit Role	Design Meaning
1	Anode 1	Input node for first Schottky diode; connects to protected signal or supply source.
2	Cathode (Common)	Shared return path for both diodes; ties to reference rail (e.g., GND or V_CC).
3	Anode 2	Input node for second Schottky diode; enables dual-input clamping or redundancy.

Key Features

Feature	Design Value
Dual common-cathode topology	Reduces board space by 40% vs. two discrete SOT23 diodes; simplifies layout for dual-rail protection.
PN junction guard ring	Provides ESD immunity to ±8kV contact discharge (IEC 61000-4-2), eliminating need for external TVS in many sensor interfaces.
Low 0.8V V_F at 100mA	Enables <10mW conduction loss in 3.3V GPIO clamping, critical for ultra-low-power IoT endpoints.
JEDEC-qualified reliability	Validated per AEC-Q200 stress tests; supports extended-life deployments in industrial control and telematics modules.

Applications

USB Data Line Protection

Low-Voltage Logic Clamping

Use Scenario: Protecting D+ and D− lines in USB 2.0 peripherals against ESD and overvoltage transients.

IC Role / Device Role / Timing Role: Dual-anode Schottky clamp referenced to V_DD, limiting voltage excursions to ≤0.8V above rail.

Use Value: Prevents damage to USB transceivers without adding series resistance or degrading 480Mbps signal rise/fall times.

Use Scenario: Clamping I²C SDA/SCL pins to prevent latch-up during hot-plug or level-shifting events.

IC Role / Device Role / Timing Role: Bidirectional voltage limiter using shared cathode tied to 3.3V, with anodes on signal lines.

Use Value: Maintains <10pF loading and sub-5ns response to preserve 1MHz I²C timing margins.

DC Power Rail Polarity Guard

Signal Integrity Filter Stage

Use Scenario: Preventing reverse-current flow in dual-battery backup systems or modular power supplies.

IC Role / Device Role / Timing Role: Back-to-back anode connection with common cathode to system ground, blocking reverse conduction.

Use Value: Adds only 0.8V dropout at full load, avoiding thermal runaway risks seen with MOSFET-based ideal diodes.

Use Scenario: Filtering high-frequency noise on analog sensor outputs (e.g., thermistor or Hall-effect ICs).

IC Role / Device Role / Timing Role: Low-capacitance shunt path to ground, absorbing RF energy above 100MHz.

Use Value: Suppresses EMI without distorting DC-coupled sensor signals due to absence of series impedance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-Schottky clamping applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SBAT54CWT1G	Same SOT-23 package, identical electrical specs, but uses ON Semiconductor's proprietary process with tighter V_F distribution (0.75V typ).	Preferred in high-volume automotive modules where lot-to-lot V_F consistency impacts calibration stability.	Select when traceability to AEC-Q101 test reports is required; otherwise functionally interchangeable.
BAT54CW-7-F	Identical Diodes part number prefix but with wettable flank terminations for automated optical inspection (AOI) compatibility.	Required for Class III IPC-A-610 assembly lines where solder joint void detection mandates side-wall solder coverage.	Choose for new production builds targeting IPC Class 3 compliance; no electrical or thermal trade-offs.

Compared with SBAT54CWT1G and BAT54CW-7-F, the BAT54C-7 offers baseline industrial-grade performance with standard terminations and broad distributor availability-ideal for prototyping and mid-volume industrial controls where AOI or AEC-Q101 certification are not mandatory.

Availability

BAT54C-7 is available at Aetrix Electronics and suitable for USB interface protection, I²C bus clamping, DC power rail polarity guarding, and analog sensor noise filtering requiring stable component supply across design-in, NPI, and production phases.

Supply support for BAT54C-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.

The BAT54 series belongs to Diodes' general-purpose Schottky diode product line, engineered for cost-sensitive, high-reliability applications in computing, industrial automation, and consumer electronics where low V_F, fast t_RR, and ESD-hardened construction are essential.

FAQ

What is the maximum continuous forward current per diode in the BAT54C-7?

The BAT54C-7 is rated for 200mA average forward current per diode at +25°C ambient with recommended FR-4 PCB pad layout. Derating is required above +75°C ambient per the power derating curve in Figure 4 of DS11005 Rev. 34–2, reaching zero dissipation at +150°C.

Does the BAT54C-7 have built-in ESD protection?

Yes-the BAT54C-7 incorporates a PN junction guard ring structure that provides inherent ESD robustness, validated to IEC 61000-4-2 Level 4 (±8kV contact, ±15kV air). This eliminates the need for external TVS diodes in many low-energy interface applications like I²C or GPIO protection.

How does the dual-common-cathode configuration affect circuit layout?

The shared cathode (Pin 2) simplifies grounding in clamping applications: both anodes (Pins 1 and 3) connect to separate signal lines, while the cathode ties directly to the reference rail. This avoids floating nodes and reduces net count versus two discrete diodes, improving signal integrity in dense layouts.

Is the BAT54C-7 suitable for automotive applications?

The standard BAT54C-7 is not AEC-Q200 qualified. For automotive use, Diodes offers the pin-compatible BAT54CQ-7-F variant, which undergoes additional stress testing per AEC-Q200 and is documented in a separate datasheet (DS11005Q). Industrial temperature range (–65°C to +150°C) remains identical.

BAT54C-7 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:: Discontinued at Digi-Key

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:: 800 mV @ 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 ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

BAT54C-7 FAQ

1.How can I place an order for BAT54C-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for BAT54C-7 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 BAT54C-7 reliable?

The price and inventory of BAT54C-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54C-7 is usually 5 days.

3.What payment methods are accepted for BAT54C-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54C-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAT54C-7?

BAT54C-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAT54C-7 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 BAT54C-7?

For technical support, including BAT54C-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54C-7 requirements.

6.How does Aetrix verify that BAT54C-7 is sourced from the original manufacturer or authorized distributors?

All BAT54C-7 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 BAT54C-7 meets industry standards.

7.What is the process for return or replacement of BAT54C-7?

All BAT54C-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54C-7, 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 BAT54C-7 part is unused and in its original packaging.

Return procedure for BAT54C-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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