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Nexperia USA Inc. BAS40-05W,115
- Part No.:
- BAS40-05W,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS40-05W,115.pdf
- Description:
- DIODE ARR SCHOT 40V 120MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:26,346
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Product details
Overview
BAS40-05W from Nexperia is a general-purpose dual Schottky diode in SOT323 (SC-70) package, configured as two anodes sharing a common cathode. It delivers 40 V reverse voltage rating, 380 mV forward voltage at 1 mA, and 5 pF capacitance at 0 V - enabling ultra-high-speed switching and low-loss clamping in compact DC-DC converter feedback paths and RF detector circuits.
For engineers reviewing the BAS40-05W datasheet, BAS40-05W pinout, BAS40-05W application, or BAS40-05W equivalent, key selection criteria include its dual-anode/common-cathode topology, pulsed forward current capability up to 120 mA, thermal resistance of 625 K/W on FR4, and suitability for space-constrained signal routing and voltage rail protection.
Technical Context
The BAS40-05W integrates two independent Schottky junctions with shared cathode termination, supporting parallel or complementary switching configurations without inter-device isolation. Its low 5 pF junction capacitance and sub-400 mV forward drop at low current enable minimal signal distortion in high-frequency clamp and sampling applications.
Designed for operation across –65 °C to 150 °C ambient, it maintains stable reverse leakage (<10 µA at 40 V) and differential resistance (<1 Ω at 10 mA), making it suitable for precision analog front-ends and battery-powered signal conditioning where thermal drift and power loss must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - supports rail-to-rail clamping in 3.3 V/5 V/12 V systems without breakdown risk. |
| Forward Voltage (VF) | 380 mV @ 1 mA - enables low-threshold detection and minimal conduction loss in bias networks. |
| Junction Capacitance (Cd) | 5 pF @ 0 V, 1 MHz - preserves signal integrity above 100 MHz in RF envelope detectors. |
| Forward Current (IF) | 120 mA continuous - sufficient for logic-level signal steering and transient suppression in I/O buffers. |
| Reverse Leakage (IR) | 1 µA @ 30 V - ensures negligible standby current in always-on sensing nodes. |
| Thermal Resistance (Rth(j-a)) | 625 K/W on FR4 - defines maximum power dissipation (~160 mW) under natural convection cooling. |
Pinout & Package
Package: SOT323 (SC-70), 3-lead surface-mount plastic package, 2.0 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Diode 1) | Input node for first Schottky path; connects to signal source or positive rail in clamp configuration. |
| 2 | Anode (Diode 2) | Independent input node for second Schottky path; enables dual-input OR-ing or polarity-selective routing. |
| 3 | Common Cathode (K1/K2) | Shared output node; simplifies PCB layout by eliminating separate cathode traces and reducing parasitic inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-anode/common-cathode topology | Reduces component count and board area in dual-signal clamp or OR-gate designs versus discrete diodes. |
| Low 5 pF junction capacitance | Minimizes high-frequency loading in RF detector and fast-switching gate-drive snubber circuits. |
| 380 mV VF at 1 mA | Enables accurate low-voltage signal thresholding without external biasing in precision rectifier stages. |
| 150 °C max junction temperature | Supports reliable operation in thermally dense environments such as enclosed power modules and motor drivers. |
Applications
| RF Signal Detection | DC-DC Converter Feedback Clamping |
|---|---|
Use Scenario: Demodulating AM signals in 2.4 GHz ISM-band receivers using envelope detection. IC Role / Device Role / Timing Role: Schottky diode pair acting as zero-bias RF detector with minimal junction capacitance and forward voltage. Use Value: 5 pF capacitance and 380 mV VF preserve signal fidelity and sensitivity down to –20 dBm input levels. |
Use Scenario: Clamping feedback node of synchronous buck controller to prevent overvoltage during light-load discontinuous conduction mode. IC Role / Device Role / Timing Role: Dual-anode clamp limiting error amplifier input swing to safe range while sharing cathode return. Use Value: Common-cathode structure eliminates mismatch-induced offset and reduces trace inductance in high-dV/dt feedback loops. |
| USB Port ESD Protection | Logic-Level Signal Steering |
Use Scenario: Bidirectional transient suppression on USB 2.0 D+/D− lines before USB transceiver input. IC Role / Device Role / Timing Role: Dual Schottky clamping diode shunting ESD pulses to VBUS and GND rails. Use Value: 40 V VR withstands IEC 61000-4-2 contact discharge while 1 µA IR avoids DC loading of high-impedance data lines. |
Use Scenario: Selecting between two microcontroller GPIO outputs driving a shared peripheral bus line. IC Role / Device Role / Timing Role: OR-ing diode pair enabling wired-OR logic with isolated anode inputs and unified cathode output. Use Value: Low 380 mV VF ensures <100 ns propagation delay and preserves TTL/CMOS logic thresholds under 120 mA load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR0230HT1G | Single-diode SOD-123 package; 30 V VR, 450 mV VF @ 1 mA, 10 pF Cd | Lacks dual-anode topology; requires two devices for same function; higher capacitance limits >500 MHz use | Prefer when only one diode path needed and board space allows separate placement. |
| Vishay SD103ATW-7-F | Common-cathode dual Schottky in SOT-23; 40 V VR, 450 mV VF @ 10 mA, 15 pF Cd | Higher VF increases conduction loss; larger 15 pF capacitance degrades >100 MHz performance | Acceptable for lower-frequency clamping where thermal margin exceeds 625 K/W requirement. |
Compared with NSR0230HT1G and SD103ATW-7-F, the BAS40-05W uniquely combines dual-anode integration, lowest capacitance (5 pF), and tightest low-current VF (380 mV), making it optimal for high-frequency, space-constrained, and low-power signal-path applications.
Availability
BAS40-05W is available at Aetrix Electronics and suitable for ultra high-speed switching, voltage clamping, and RF signal detection requiring stable component supply and consistent parametric performance across production lots.
Supply support for BAS40-05W 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
Nexperia is a global semiconductor expert specializing in high-performance, energy-efficient logic, analog, and discrete components, with manufacturing rooted in process technology leadership and automotive-grade reliability standards.
The BAS40-05W belongs to Nexperia's general-purpose Schottky diode product line, engineered for cost-sensitive, high-volume applications demanding speed, low leakage, and small-footprint packaging in consumer, computing, and industrial electronics.
FAQ
What is the maximum pulsed forward current rating for BAS40-05W?
The non-repetitive peak forward current (IFSM) is 200 mA for pulse width ≤10 ms at Tj(init) = 25 °C. This rating applies to short-duration transients like ESD events or inrush spikes, not sustained operation. Continuous forward current remains limited to 120 mA per diode to maintain junction temperature below 150 °C under specified thermal conditions.
Can BAS40-05W be used in automotive applications?
No - the BAS40-05W is explicitly marked as non-automotive qualified in its revision history. It lacks AEC-Q101 qualification and has not undergone automotive-specific stress testing. For automotive use, Nexperia offers the BAS40-05W-Q variant, which meets AEC-Q101 requirements and supports extended temperature operation with validated reliability data.
How does the common-cathode configuration affect PCB layout?
The shared cathode (Pin 3) eliminates need for separate cathode traces, reducing loop area and parasitic inductance in high-dV/dt applications. Layout best practice is to place a single, low-inductance copper pour connecting Pin 3 directly to ground or reference rail, while routing anodes (Pins 1 and 2) separately to their respective signal sources to avoid crosstalk.
Is BAS40-05W compatible with lead-free reflow soldering processes?
Yes - the device is qualified for standard lead-free reflow per JEDEC J-STD-020, with peak temperature up to 260 °C. The recommended footprint matches Nexperia's SOT323 reflow land pattern (sot323_fr), featuring 0.55 mm pad width, 1.325 mm pad length, and 1.3 mm center-to-center spacing to ensure reliable solder joint formation and mechanical stability.
BAS40-05W,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- 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):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 120mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 40 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 40 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAS40-05W,115 FAQ
1.How can I place an order for BAS40-05W,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40-05W,115 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 BAS40-05W,115 reliable?
The price and inventory of BAS40-05W,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS40-05W,115 is usually 5 days.
3.What payment methods are accepted for BAS40-05W,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40-05W,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40-05W,115?
BAS40-05W,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40-05W,115 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 BAS40-05W,115?
For technical support, including BAS40-05W,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40-05W,115 requirements.
6.How does Aetrix verify that BAS40-05W,115 is sourced from the original manufacturer or authorized distributors?
All BAS40-05W,115 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 BAS40-05W,115 meets industry standards.
7.What is the process for return or replacement of BAS40-05W,115?
All BAS40-05W,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAS40-05W,115, 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 BAS40-05W,115 part is unused and in its original packaging.
Return procedure for BAS40-05W,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40-05W,115 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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