Diodes Incorporated BAT64CQ-13-F
- Part No.:
- BAT64CQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT64CQ-13-F.pdf
- Description:
- DIODE ARR SCHOT 40V 250MA SOT233
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BAT64CQ-13-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT23 package, rated for 40 V peak reverse voltage, 250 mA average forward current, and 750 mV max forward voltage at 100 mA. It features a PN junction guard ring for transient protection and is AEC-Q101 qualified for automotive use.
For engineers reviewing the BAT64CQ-13-F datasheet, BAT64CQ-13-F pinout, BAT64CQ-13-F application, or BAT64CQ-13-F equivalent, key selection criteria include low VF at low-to-moderate forward currents (350–750 mV), fast 3.0 ns reverse recovery time, 6.0 pF junction capacitance at 1 V, and operation across –55°C to +150°C ambient temperature range.
Technical Context
This Schottky diode uses a metal-semiconductor junction to achieve low forward voltage drop and fast switching-critical for high-frequency rectification and signal clamping. Its guard ring structure enhances ESD and transient robustness without compromising speed or leakage.
It operates with 2.0 µA max reverse leakage at 40 V, supports 2100 mA non-repetitive surge current, and delivers stable performance up to 150°C junction temperature. Thermal resistance is 500°C/W on FR-4 board with recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - maximum repetitive reverse blocking voltage before breakdown |
| IO | 250 mA - continuous DC forward current rating under thermal limits |
| VF Max @ 100mA | 750 mV - ensures minimal conduction loss in low-voltage power rails |
| tRR | 3.0 ns - enables efficient operation in >100 MHz switching applications |
| CT @ 1V | 6.0 pF - low junction capacitance supports RF detector and mixer functions |
| IR Max @ 40V | 2.0 µA - low leakage preserves signal integrity in high-impedance bias networks |
| TJ Range | –55°C to +150°C - validated for under-hood automotive and industrial environments |
Pinout & Package
Package: SOT23 - 3-pin surface-mount plastic package, 2.9 mm × 1.3 mm × 1.0 mm, moisture sensitivity level 1, matte tin-plated alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry | Connected to higher-potential node in rectifier/clamp path; polarity-marked on top view |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Internally tied to package tab; requires proper PCB thermal relief for 250 mW dissipation |
| No-Connect (Pin 3) | Unused internal lead | Electrically isolated; no bonding wire attached; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Low turn-on voltage | 350 mV @ 1 mA enables reliable start-up in 1.2 V–3.3 V logic-level circuits |
| Fast switching | 3.0 ns tRR supports high-speed sampling, RF envelope detection, and clock clamping |
| PN junction guard ring | Enhances ESD immunity (HBM >8 kV) and protects against voltage transients in automotive CAN/LIN nodes |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and ADAS subsystems requiring PPAP documentation |
Applications
| Automotive LIN Transceiver Clamping | USB Port ESD Protection |
|---|---|
Use Scenario: Clamping transient spikes on LIN bus lines during load dump or ESD events. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between LIN line and ground, leveraging low VF and fast tRR to respond within nanoseconds. Use Value: Prevents damage to LIN transceivers by limiting line voltage to <40 V while adding <1 ns propagation delay. | Use Scenario: Protecting USB 2.0 D+/D− data lines from human-body-model ESD strikes. IC Role / Device Role / Timing Role: Low-capacitance (6.0 pF) Schottky clamp shunting ESD current to ground without distorting 480 Mbps signaling. Use Value: Maintains signal integrity up to 200 MHz while meeting IEC 61000-4-2 Level 4 (±15 kV air) requirements. |
| Low-Voltage DC-DC Feedback Rectification | RF Signal Detector in IoT Sensors |
Use Scenario: Synchronous rectification in 3.3 V output buck converters for wearables and battery-powered modules. IC Role / Device Role / Timing Role: Freewheeling diode replacing MOSFET gate drive complexity in low-current (<250 mA) secondary-side rectification. Use Value: Reduces BOM count and layout area vs. active sync rectifier ICs while maintaining >92% efficiency at light loads. | Use Scenario: Demodulating 2.4 GHz ISM-band RF energy for passive sensor wake-up in BLE beacons. IC Role / Device Role / Timing Role: Zero-bias RF detector diode converting RF envelope to DC voltage using sub-400 mV turn-on threshold. Use Value: Enables microwatt-level harvesting with 350 mV VF @ 1 mA, supporting wake-up from <–20 dBm input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54CWT1G | Same SOT-23 package; 30 V VRRM, 200 mA IO, 450 mV VF @ 10 mA | Lower voltage/current rating; optimized for 3.3 V logic-level clamping only | Select when system reverse voltage stays ≤30 V and space-constrained layout favors identical footprint |
| NSR0230HT1G | 0.3 A IO, 30 V VRRM, 450 mV VF @ 100 mA, 15 pF CT | Higher capacitance limits RF use; better for general-purpose low-VF rectification | Prefer for cost-sensitive consumer power rails where 3 ns tRR and 6 pF CT are not required |
Compared with SBAT54CWT1G and NSR0230HT1G, BAT64CQ-13-F uniquely balances 40 V blocking, 250 mA current, 3.0 ns switching, and 6.0 pF capacitance-making it the only option among the three qualified for AEC-Q101 automotive systems requiring simultaneous high-speed and high-temperature operation.
Availability
BAT64CQ-13-F is available at Aetrix Electronics and suitable for automotive LIN networks, USB 2.0 interface protection, low-power DC-DC feedback paths, and RF energy harvesting circuits requiring stable component supply and full traceability.
Supply support for BAT64CQ-13-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 BAT64 series belongs to Diodes' automotive-qualified Schottky diode product line, engineered specifically for high-reliability signal conditioning, transient suppression, and low-loss rectification in harsh-environment electronic control units.
FAQ
What is the polarity marking for BAT64CQ-13-F on the SOT23 package?
The cathode is marked with a band adjacent to Pin 2 on the top surface. Pin 1 (anode) is located at the left end when the marking band is oriented at the upper-left corner of the package outline. The third pin is internally unconnected and must remain floating in PCB layout.
Does BAT64CQ-13-F require derating above 25°C ambient temperature?
Yes - power dissipation must be linearly derated above 25°C at 0.5 mW/°C, reaching 0 mW at 150°C. At 100°C ambient, maximum allowable PD drops to 125 mW. Derating follows the curve in Figure 4 of DS45354 Rev. 5–2, based on FR-4 board with standard pad layout.
Is BAT64CQ-13-F compatible with lead-free reflow soldering profiles?
Yes - it is fully RoHS-compliant and rated for JEDEC J-STD-020 moisture sensitivity level 1. The device supports peak reflow temperatures up to 260°C for ≤60 seconds, with ramp rates and soak profiles conforming to IPC/JEDEC J-STD-020D. Matte tin plating ensures reliable wetting and intermetallic formation.
How does the PN junction guard ring improve reliability in automotive applications?
The integrated guard ring reduces electric field crowding at the junction edge, suppressing premature avalanche breakdown during load-dump transients (ISO 7637-2 Pulse 5a). This extends operational lifetime under repeated 12 V/24 V system surges and improves HBM ESD tolerance to >8 kV-verified per AEC-Q101 stress test conditions.
BAT64CQ-13-F 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:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 100 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 3 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 40 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BAT64CQ-13-F FAQ
1.How can I place an order for BAT64CQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT64CQ-13-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 BAT64CQ-13-F reliable?
The price and inventory of BAT64CQ-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT64CQ-13-F is usually 5 days.
3.What payment methods are accepted for BAT64CQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT64CQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT64CQ-13-F?
BAT64CQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT64CQ-13-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 BAT64CQ-13-F?
For technical support, including BAT64CQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT64CQ-13-F requirements.
6.How does Aetrix verify that BAT64CQ-13-F is sourced from the original manufacturer or authorized distributors?
All BAT64CQ-13-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 BAT64CQ-13-F meets industry standards.
7.What is the process for return or replacement of BAT64CQ-13-F?
All BAT64CQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with BAT64CQ-13-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 BAT64CQ-13-F part is unused and in its original packaging.
Return procedure for BAT64CQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT64CQ-13-F Tags

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