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Nexperia USA Inc. BAS40-05,215
- Part No.:
- BAS40-05,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAS40-05,215.pdf
- Description:
- DIODE ARR SCHOTTKY 40V TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:186,827
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Product details
Overview
BAS40-05,215 from Nexperia is a general-purpose dual Schottky diode in SOT23 package, configured as two anodes (A1, A2) sharing a common cathode (K1/K2). It delivers 40 V reverse voltage rating, 120 mA forward current capability, and 380 mV forward voltage at 1 mA, enabling ultra-high-speed switching and low-loss clamping in compact DC-DC converter feedback paths.
For engineers reviewing the BAS40-05,215 datasheet, BAS40-05,215 pinout, BAS40-05,215 application, or BAS40-05,215 equivalent, key selection criteria include its dual-anode/common-cathode topology, pulsed forward voltage behavior, low 5 pF capacitance at 0 V, and thermal resistance of 500 K/W on FR4 PCB - critical for high-frequency signal routing and rail clamping in space-constrained designs.
Technical Context
The BAS40-05,215 integrates two independent Schottky junctions with shared cathode termination, supporting parallel or independent anode routing in clamp or steering configurations. Its 40 V VR rating and 200 mA non-repetitive peak forward current (IFSM) allow transient suppression in 24 V industrial control I/O stages.
Thermal performance is defined by Rth(j-a) = 500 K/W under standard FR4 mounting, and electrical behavior is characterized across temperature: VF rises to ~500 mV at 10 mA (25 °C) and ~1 V at 40 mA, while IR remains ≤10 µA at VR = 40 V and 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 40 V - supports clamping in 24 V systems with 67 % safety margin over nominal rail. |
| IF (Forward Current) | 120 mA continuous - sufficient for biasing, level-shifting, and low-power signal steering. |
| VF (Forward Voltage) | 380 mV @ 1 mA - enables low-loss voltage translation in logic-level interfaces and sensing circuits. |
| IR (Reverse Current) | 10 µA @ 40 V - ensures minimal leakage in high-impedance sample-and-hold or reference divider networks. |
| Cd (Capacitance) | 5 pF @ 0 V, 1 MHz - preserves signal integrity in >100 MHz RF detector or clock line clamping applications. |
| Tj (Junction Temp) | 150 °C max - allows operation in sealed enclosures or near power components without derating. |
Pinout & Package
Package: SOT23 (TO-236AB), 3-terminal surface-mount plastic package, 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 (Anode 1) | Input node for first Schottky diode; routed independently for dual-path clamping or OR-ing. |
| 2 | A2 (Anode 2) | Input node for second Schottky diode; enables simultaneous protection of two signals sharing one return path. |
| 3 | K1/K2 (Common Cathode) | Single output/return terminal; simplifies PCB layout and reduces net count in dual-diode configurations. |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | Sub-nanosecond recovery due to Schottky barrier - avoids storage delay in >50 MHz pulse shaping. |
| Low leakage current | ≤1 µA @ VR = 30 V - maintains accuracy in precision voltage references and battery-monitoring dividers. |
| Low capacitance | 5 pF - minimizes loading on high-frequency clock or RF detector outputs. |
| High breakdown voltage | 40 V VR - exceeds industrial 24 V bus transients (IEC 61000-4-4 Level 3: ±2 kV) with margin. |
Applications
| USB Data Line Protection | DC-DC Converter Feedback Clamp |
|---|---|
|
Use Scenario: Clamping ESD transients on USB 2.0 D+ and D− lines before entering USB transceiver IC. IC Role / Device Role: Dual-anode Schottky clamp to ground (common cathode tied to GND), limiting voltage excursion to <0.4 V above VDD or below GND. Use Value: 5 pF capacitance prevents signal edge degradation; 380 mV VF ensures clamping activates before transceiver damage threshold (~±15 V). |
Use Scenario: Preventing overshoot in isolated flyback converter feedback loop caused by optocoupler delay or noise coupling. IC Role / Device Role: Common-cathode clamp across optocoupler input, with each anode connected to separate error amplifier outputs. Use Value: Dual-anode topology allows independent clamping of two feedback paths without cross-talk; 120 mA IF handles transient energy from 100 kHz switching spikes. |
| Logic-Level Translation | Industrial Sensor Signal Steering |
|
Use Scenario: Bidirectional level shifting between 3.3 V microcontroller GPIO and 5 V peripheral I²C bus using passive resistor-based translator. IC Role / Device Role: Dual Schottky diode providing low-VF forward path and blocking reverse leakage between domains. Use Value: 380 mV VF enables reliable turn-on at 3.3 V logic high; 10 µA IR prevents false triggering in high-Z pull-up configurations. |
Use Scenario: Routing analog sensor outputs (e.g., 4–20 mA transmitter) to multiple monitoring channels with fault isolation. IC Role / Device Role: Anode-to-sensor-output, common cathode to multiplexer input - blocks backfeed during channel switching. Use Value: Shared cathode eliminates need for discrete diodes per channel; 150 °C Tj rating supports operation in uncooled industrial cabinets. |
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 NSR20F40NXT5G | Same SOT23 package, but single-anode/dual-cathode configuration (A-K1-K2); VF = 420 mV @ 1 mA. | Requires reversed PCB layout (cathodes separated); less suitable for common-return clamping. | Select when independent cathode routing is needed for bidirectional signal isolation. |
| Diodes Inc. BAV99,215 | Higher VF (≈800 mV @ 10 mA), lower VR (70 V), same dual-anode/common-cathode pinout. | Higher conduction loss limits use in low-voltage logic translation; better for higher-voltage transient suppression. | Prefer for 48 V telecom line protection where leakage and capacitance are secondary concerns. |
Compared with NSR20F40NXT5G and BAV99,215, the BAS40-05,215 uniquely balances low VF, low Cd, and dual-anode/common-cathode topology - making it optimal for compact, high-frequency clamping where layout simplicity and signal fidelity are prioritized over extreme voltage rating or cathode separation.
Availability
BAS40-05,215 is available at Aetrix Electronics and suitable for USB interface protection, DC-DC feedback clamping, logic-level translation, and industrial sensor signal steering requiring stable component supply and consistent SOT23 footprint compatibility.
Supply support for BAS40-05,215 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, high-reliability discrete, logic, and MOSFET devices, headquartered in Nijmegen, Netherlands.
The BAS40 series belongs to Nexperia's general-purpose Schottky diode product line, engineered for cost-sensitive, space-constrained applications demanding fast switching, low forward drop, and robust thermal performance in consumer, industrial, and computing systems.
FAQ
What is the maximum pulsed forward current the BAS40-05,215 can handle?
The BAS40-05,215 supports a non-repetitive peak forward current (IFSM) of 200 mA at tp ≤ 10 ms and Tj(init) = 25 °C. This rating applies to short-duration transients such as ESD events or switching spikes, not continuous operation. Derating is required above 25 °C ambient per the thermal resistance curve in the datasheet.
Can the BAS40-05,215 be used in automotive applications?
No - the BAS40-05,215 is explicitly marked as non-automotive qualified in the revision history (v.12, Jan 2023). Nexperia states it is neither qualified nor tested to AEC-Q101 standards. For automotive use, consult Nexperia's BAS40-05Q series or equivalent qualified alternatives.
How does the common cathode configuration affect PCB layout compared to dual-diode packages with separate cathodes?
The shared cathode (Pin 3) reduces net count and eliminates the need for two separate cathode traces or vias, simplifying routing in dense layouts. It enables direct connection to a single ground plane or reference node, minimizing inductance in high-speed clamping paths - unlike separate-cathode variants that require careful isolation to avoid ground bounce coupling.
Is the 5 pF capacitance measured at zero bias applicable to AC-coupled signal paths?
Yes - the 5 pF value is specified at VR = 0 V and f = 1 MHz, representing junction capacitance under unbiased conditions. In AC-coupled paths (e.g., RF detectors), this capacitance forms part of the signal path impedance; Fig. 4 in the datasheet confirms it drops to ~3 pF at VR = 30 V, allowing dynamic adjustment via bias tuning if needed.
BAS40-05,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- 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):
- 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:
- TO-236AB
BAS40-05,215 FAQ
1.How can I place an order for BAS40-05,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40-05,215 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 BAS40-05,215 reliable?
The price and inventory of BAS40-05,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS40-05,215 is usually 5 days.
3.What payment methods are accepted for BAS40-05,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40-05,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40-05,215?
BAS40-05,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40-05,215 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 BAS40-05,215?
For technical support, including BAS40-05,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40-05,215 requirements.
6.How does Aetrix verify that BAS40-05,215 is sourced from the original manufacturer or authorized distributors?
All BAS40-05,215 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 BAS40-05,215 meets industry standards.
7.What is the process for return or replacement of BAS40-05,215?
All BAS40-05,215 units undergo pre-shipment inspection (PSI). If there is an issue with BAS40-05,215, 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 BAS40-05,215 part is unused and in its original packaging.
Return procedure for BAS40-05,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40-05,215 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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