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Nexperia USA Inc. BAS70-05W,115
- Part No.:
- BAS70-05W,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS70-05W,115.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:17,897
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Product details
Overview
BAS70-05W from Nexperia is a general-purpose dual Schottky diode in SOT323 (SC-70) package, featuring 70 V reverse voltage rating, 70 mA forward current capability, 410 mV typical forward voltage at 1 mA, 2 pF diode capacitance at 0 V, and common-cathode configuration for compact dual-diode integration in signal clamping and high-speed switching circuits.
For engineers reviewing the BAS70-05W datasheet, BAS70-05W pinout, BAS70-05W application, or BAS70-05W equivalent, key selection criteria include its low VF/low Cd trade-off, shared cathode topology, thermal resistance of 500 K/W, and suitability for space-constrained 2.0 mm × 1.25 mm PCB footprints requiring dual Schottky functionality without discrete pairing.
Technical Context
This dual Schottky diode integrates two anodes (A1, A2) and a single common cathode (K1/K2) in one SC-70 package, enabling independent forward conduction paths with shared return - ideal for dual-rail clamping or complementary signal routing. Its 2 pF capacitance and sub-1 V VF up to 15 mA support operation beyond 100 MHz in RF front-end protection and logic-level translation.
The device operates across −65 °C to +150 °C ambient range with 100 mA non-repetitive surge rating and 150 °C maximum junction temperature. Thermal resistance of 500 K/W (FR4, single-sided copper) defines power dissipation limits under pulsed conditions, while leakage remains ≤10 µA at full 70 V VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 70 V - supports clamping in 48 V industrial bus and 5 V–36 V automotive subsystems without breakdown. |
| Forward Voltage (VF) | 410 mV @ 1 mA - enables low-loss signal steering in battery-powered sensor interfaces with minimal voltage drop. |
| Diode Capacitance (Cd) | 2 pF @ 0 V, 1 MHz - preserves signal integrity in >100 MHz RF detector and ESD protection paths. |
| Reverse Leakage (IR) | 10 µA @ 70 V - ensures stable biasing in high-impedance sample-and-hold and precision reference circuits. |
| Thermal Resistance (Rth(j-a)) | 500 K/W - limits steady-state power dissipation to ~150 mW on standard FR4 PCB without heatsinking. |
| Package Dimensions | 2.0 mm × 1.25 mm × 0.95 mm - fits 0402-class board area while accommodating three terminals for dual-diode function. |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package with 1.3 mm lead pitch, 3-terminal configuration, and standardized footprint per Nexperia's sot323_fr reflow land pattern.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Diode 1) | Input node for first Schottky path; connects to signal source or rail requiring clamping or rectification. |
| 2 | Anode (Diode 2) | Independent input node for second Schottky path; enables dual-rail or differential clamping topology. |
| 3 | Common Cathode (K1/K2) | Shared output/return node - simplifies PCB layout by eliminating separate cathode traces and reducing parasitic inductance. |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | Enabled by low junction capacitance (2 pF) and fast carrier injection - supports <1 ns recovery in pulse shaping applications. |
| Low leakage current | ≤100 nA @ 50 V VR ensures minimal DC error in high-gain amplifier feedback networks and precision voltage references. |
| High breakdown voltage | 70 V VR rating allows use in 24 V/48 V industrial control I/O protection without derating or series stacking. |
| Low forward voltage | 410 mV VF @ 1 mA reduces conduction loss in low-voltage logic-level translators and battery monitor diode-OR circuits. |
Applications
| USB Data Line Protection | LVDS Receiver Clamping |
|---|---|
|
Use Scenario: Protecting USB 2.0 D+/D− lines against ESD transients and overvoltage events in portable host devices. IC Role / Device Role: Dual Schottky clamp between data lines and VBUS/GND rails, leveraging common cathode for symmetric bidirectional clamping. Use Value: 2 pF capacitance avoids signal distortion at 480 Mbps; 410 mV VF ensures clamping threshold stays below 0.7 V, preserving USB receiver common-mode range. |
Use Scenario: Limiting differential swing at LVDS receiver inputs to prevent latch-up during hot-plug or cable mismatch events. IC Role / Device Role: Dual-anode clamp referenced to termination voltage (e.g., 1.2 V), with shared cathode tied to termination point. Use Value: Matched VF across both diodes maintains differential balance; 70 V VR withstands transient spikes exceeding ±15 V without conduction asymmetry. |
| RF Detector Input Stage | Microcontroller Reset Signal Conditioning |
|
Use Scenario: Rectifying weak RF signals (900 MHz ISM band) in envelope detector circuits for wireless sensor nodes. IC Role / Device Role: Low-Cd Schottky pair used in half-wave detection, where A1/A2 accept differential RF inputs and K1/K2 deliver rectified output. Use Value: 2 pF capacitance minimizes RF shunting loss; 70 mA IF rating supports peak detection of ≥−10 dBm signals without saturation. |
Use Scenario: Debouncing and voltage-level adaptation of mechanical reset buttons connected to 3.3 V microcontrollers with internal pull-ups. IC Role / Device Role: Dual-anode configuration allows separate button-to-A1 and button-to-A2 routing, with common cathode pulled to GND for noise-immune reset assertion. Use Value: 10 µA IR at 70 V prevents false resets from leakage-induced voltage drift; SOT323 size enables placement directly at MCU reset pin. |
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 NSR20F70HT1G | Higher VF (550 mV @ 1 mA), same 70 V VR, SOD-523 package (1.6 mm × 0.8 mm). | Smaller footprint but higher forward loss - better for ultra-dense layouts where voltage drop is secondary to area. | Select when board space is constrained below 2.0 mm × 1.25 mm and 150 mV higher VF is acceptable in clamping path. |
| Diodes Incorporated SD103ATW-7-F | Lower VR (35 V), higher Cd (5 pF), same SOT323 package, 100 mA IF rating. | Not suitable for 48 V systems; higher capacitance limits use above 50 MHz - appropriate only for low-frequency digital clamping. | Choose only for cost-sensitive 5 V/12 V logic-level applications where 35 V VR and 5 pF Cd meet system requirements. |
Compared with NSR20F70HT1G and SD103ATW-7-F, the BAS70-05W uniquely balances 70 V VR, 2 pF Cd, and 410 mV VF in SOT323 - making it optimal for mixed-signal boards needing dual Schottky performance across industrial voltage ranges without sacrificing RF or timing integrity.
Availability
BAS70-05W is available at Aetrix Electronics and suitable for USB interface protection, LVDS signal conditioning, RF detector front-ends, and microcontroller reset circuitry requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for BAS70-05W 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 focused on high-volume, high-reliability essential semiconductors - delivering discrete, logic, and MOSFET solutions optimized for efficiency, miniaturization, and manufacturability.
The BAS70-05W belongs to Nexperia's general-purpose Schottky diode family, engineered for cost-effective, space-efficient dual-diode integration in consumer, industrial, and communications equipment where predictable low-VF and low-Cd behavior is critical.
FAQ
Is BAS70-05W suitable for automotive applications?
No. The datasheet explicitly states this part is non-automotive qualified and lacks AEC-Q101 certification. It is not tested to automotive temperature cycling, humidity, or vibration standards. For automotive use, Nexperia offers the -Q qualified variants such as BAS70-05W-Q, which undergo extended reliability testing and PPAP documentation.
What is the maximum continuous forward current for BAS70-05W?
The absolute maximum continuous forward current is 70 mA per diode, as defined in the limiting values table. This rating assumes Tj ≤ 150 °C and proper PCB thermal design. At 25 °C ambient with standard FR4 mounting, sustained operation above 15 mA requires thermal evaluation due to Rth(j-a) = 500 K/W.
Can BAS70-05W be used as a replacement for single Schottky diodes like BAT54S?
No - the BAS70-05W has a common-cathode configuration (A1/A2/K), whereas BAT54S uses a common-anode structure (K1/K2/A). Pin compatibility and circuit topology differ fundamentally. Substitution would require PCB redesign and functional validation of clamping polarity and current return paths.
How does the common cathode configuration affect PCB layout?
The shared cathode (Pin 3) reduces net count by one versus discrete diodes, eliminates need for cathode trace routing between devices, and lowers loop inductance in high-speed clamping paths. Layout must maintain equal trace length from A1 and A2 to K to preserve symmetry in differential applications such as LVDS protection.
BAS70-05W,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):
- 70 V
- Current - Average Rectified (Io) (per Diode):
- 70mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 15 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 70 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAS70-05W,115 FAQ
1.How can I place an order for BAS70-05W,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70-05W,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 BAS70-05W,115 reliable?
The price and inventory of BAS70-05W,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70-05W,115 is usually 5 days.
3.What payment methods are accepted for BAS70-05W,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70-05W,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70-05W,115?
BAS70-05W,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70-05W,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 BAS70-05W,115?
For technical support, including BAS70-05W,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70-05W,115 requirements.
6.How does Aetrix verify that BAS70-05W,115 is sourced from the original manufacturer or authorized distributors?
All BAS70-05W,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 BAS70-05W,115 meets industry standards.
7.What is the process for return or replacement of BAS70-05W,115?
All BAS70-05W,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAS70-05W,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 BAS70-05W,115 part is unused and in its original packaging.
Return procedure for BAS70-05W,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70-05W,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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