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Diodes Incorporated BAT54CW-7-F
- Part No.:
- BAT54CW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54CW-7-F.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:16,671
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Product details
Overview
BAT54CW-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT323 package, rated for 30 V peak reverse voltage, 200 mA continuous forward current, and 320 mV max forward voltage at 1 mA. It serves as a freewheeling or blocking diode in compact DC-DC converters and reverse polarity protection circuits.
For engineers reviewing the BAT54CW-7-F datasheet, BAT54CW-7-F pinout, BAT54CW-7-F application, or BAT54CW-7-F equivalent, key selection criteria include low VF (≤320 mV @ 1 mA), fast recovery (tRR ≤ 5.0 ns), ultra-small SOT323 footprint, and 2 µA max IR @ 25 V - critical for high-efficiency, space-constrained power management designs.
Technical Context
This Schottky diode uses a platinum-silicide (PtSi) or similar low-barrier metal-semiconductor junction to achieve low forward voltage and fast switching. Its guard-ringed PN structure enhances ESD and transient robustness without compromising speed.
Designed for operation from −65 °C to +125 °C, it delivers stable performance under thermal stress with 625 °C/W junction-to-ambient thermal resistance on FR-4 PCBs using recommended pad layout. Capacitance is tightly controlled at ≤10 pF @ 1 V, supporting high-frequency rectification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum repetitive reverse voltage before breakdown; defines safe blocking range in 24 V systems |
| IF Continuous | 200 mA - sustained forward current capability; supports mid-power signal/power rail clamping |
| VF Max @ 1 mA | 320 mV - low conduction loss enabling >95% efficiency in low-current freewheeling paths |
| tRR | 5.0 ns - ultra-fast recovery minimizes switching losses in >1 MHz DC-DC topologies |
| IR Max @ 25 V | 2.0 µA - low leakage preserves battery life in always-on reverse-polarity protection |
| CT @ 1 V | 10 pF - low junction capacitance avoids signal distortion in RF detector or high-speed clamp applications |
Pinout & Package
Package: SOT323 - ultra-compact 3-pin surface-mount plastic package (2.0 × 2.225 × 0.9 mm), moisture sensitivity level 1, lead-free matte tin terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry | Connected to higher-potential node in blocking/freewheeling path; polarity marked by cathode band on package top |
| Cathode (Pin 2) | Forward current exit / reverse voltage reference | Internally tied to center leadframe; forms low-inductance return path in high-dI/dt switching |
| No-connect (Pin 3) | Thermal pad / mechanical support only | Electrically isolated; used for mechanical anchoring and heat dissipation via PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 320 mV max @ 1 mA enables <100 mW conduction loss in 200 mA paths, reducing thermal load in sealed enclosures |
| Fast switching recovery | 5.0 ns tRR allows use in 1–3 MHz synchronous buck converters without shoot-through risk or excessive ringing |
| Guard-ringed junction | Integrated PN ring suppresses edge breakdown, improving ESD tolerance to ≥8 kV HBM per AEC-Q101 (qualified variant) |
| Green, halogen-free packaging | Meets RoHS 3, JEDEC J-STD-020 Level 1, and Diodes' "Green" standard (<900 ppm Br/Cl, <1000 ppm Sb) |
Applications
| DC-DC Converter Freewheeling | Reverse Polarity Protection |
|---|---|
Use Scenario: Placed across high-side switch in buck converter to recirculate inductor current during off-time. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during MOSFET off-state; operates synchronously with 500 kHz–2 MHz switching. Use Value: 320 mV VF reduces conduction loss by ~40% vs. standard silicon diodes, directly improving light-load efficiency. | Use Scenario: Series-connected anode-to-input in battery-powered IoT sensor node to block reverse battery insertion. IC Role / Device Role / Timing Role: Blocking diode preventing damage during accidental reverse connection; conducts only during correct polarity. Use Value: 2 µA IR at 25 V ensures <1 µW standby power loss, preserving multi-year coin-cell battery life. |
| Signal-Level Clamping | Low-Power Logic-Level Translation |
Use Scenario: Clamp input of 3.3 V microcontroller GPIO to prevent overvoltage from 5 V peripheral signals. IC Role / Device Role / Timing Role: Voltage limiter limiting excursion to VDD + 0.3 V; responds within nanoseconds to transients. Use Value: 10 pF CT and 5 ns tRR avoid signal integrity degradation in 10–50 MHz digital interfaces. | Use Scenario: Level-shifting I²C SDA line between 1.8 V MCU and 3.3 V sensor using passive diode-based translation. IC Role / Device Role / Timing Role: Forward-biased voltage dropper establishing logic-high offset; operates in sub-100 µA bias current. Use Value: 320 mV VF provides precise 1.8 V → 2.12 V shift, maintaining noise margin while avoiding active circuit complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54CW-7-F | Same electrical specs; enhanced ESD rating (15 kV HBM vs. 8 kV) and automotive qualification (AEC-Q101) | Required for automotive infotainment power rails; not needed for consumer-grade DC-DC | Select when automotive qualification or higher ESD immunity is mandated |
| NSR0230HT1G | Slightly higher VF (370 mV @ 1 mA); same SOT-323 package; lower IR (1 µA @ 25 V) | Better leakage performance suits ultra-low-power battery monitoring; higher VF increases conduction loss | Prefer for <1 µA leakage-critical roles; avoid where <330 mV VF is essential |
Compared with SBAT54CW-7-F and NSR0230HT1G, BAT54CW-7-F offers the best balance of ultra-low VF, proven industrial reliability, and cost-effectiveness for non-automotive DC-DC and protection applications - without over-specifying ESD or leakage beyond design requirements.
Availability
BAT54CW-7-F is available at Aetrix Electronics and suitable for DC-DC converters, reverse polarity protection circuits, and freewheeling diode applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for BAT54CW-7-F 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, manufacturing, and sales operations across Asia, Europe, and North America.
The BAT54 series belongs to Diodes' high-performance Schottky diode product line, engineered specifically for space-constrained, high-efficiency power management in portable and industrial electronics.
FAQ
What is the maximum junction temperature for BAT54CW-7-F?
The absolute maximum junction temperature is +125 °C, with operation specified from −65 °C to +125 °C. Derating begins above +25 °C ambient at 0.32 mW/°C (based on 200 mW PD and 625 °C/W RθJA), requiring thermal-aware PCB layout for sustained 200 mA loads.
Is BAT54CW-7-F pin-compatible with BAT54W-7-F or BAT54AW-7-F?
Yes - all BAT54x variants (W, AW, CW, SW) share identical SOT323 pinout, package dimensions, and thermal characteristics. The suffix denotes cathode configuration: CW has common-cathode dual-diode topology, but BAT54CW-7-F is a single diode; the 'C' here indicates cathode-band-on-pin-2 orientation matching BAT54W/BAT54AW.
Does BAT54CW-7-F support reflow soldering per J-STD-020?
Yes - qualified for MSLE Level 1 per J-STD-020, meaning it withstands standard Pb-free reflow profiles (peak 260 °C) without preconditioning. The device's 0.006 g mass and thermally optimized SOT323 package ensure reliable joint formation with standard stencil and reflow settings.
How does the guard ring improve robustness in BAT54CW-7-F?
The integrated PN junction guard ring surrounds the Schottky anode, suppressing electric field crowding at the periphery. This prevents premature edge breakdown under transient overvoltage or ESD events, raising HBM ESD rating to 8 kV and improving surge survivability in real-world PCB environments with minimal layout overhead.
BAT54CW-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 2 µA @ 25 V
- Operating Temperature - Junction:
- -65°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT54CW-7-F FAQ
1.How can I place an order for BAT54CW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54CW-7-F 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 BAT54CW-7-F reliable?
The price and inventory of BAT54CW-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54CW-7-F is usually 5 days.
3.What payment methods are accepted for BAT54CW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54CW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54CW-7-F?
BAT54CW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54CW-7-F 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 BAT54CW-7-F?
For technical support, including BAT54CW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54CW-7-F requirements.
6.How does Aetrix verify that BAT54CW-7-F is sourced from the original manufacturer or authorized distributors?
All BAT54CW-7-F 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 BAT54CW-7-F meets industry standards.
7.What is the process for return or replacement of BAT54CW-7-F?
All BAT54CW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAT54CW-7-F, 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 BAT54CW-7-F part is unused and in its original packaging.
Return procedure for BAT54CW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54CW-7-F Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
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BAV99,215
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BAV70LT1G
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BAT54S-7-F
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BAV99LT1G
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BAT54S,215
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