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Nexperia USA Inc. BAS70-05W,135
- Part No.:
- BAS70-05W,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS70-05W,135.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:8,520
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Product details
Overview
BAS70-05W from Nexperia is a general-purpose dual Schottky diode in SOT323 (SC-70) package, configured with two anodes (A1, A2) and a common cathode (K1/K2). It delivers 70 V reverse voltage rating, 70 mA forward current capability, 410 mV forward voltage at 1 mA, 2 pF diode capacitance at 0 V, and 100 nA reverse leakage at 50 V - enabling ultra-high-speed switching and voltage clamping in compact power management circuits.
For engineers reviewing the BAS70-05W datasheet, BAS70-05W pinout, BAS70-05W application, or BAS70-05W equivalent, key selection criteria include dual-anode common-cathode topology, low VF for efficiency-sensitive signal paths, low Cd for RF/switching integrity, thermal resistance of 500 K/W on FR4, and non-automotive qualification status per revision history.
Technical Context
This dual Schottky diode integrates two independent junctions sharing one cathode terminal, supporting independent anode routing while minimizing board space. Its low forward voltage (410–1000 mV across 1–15 mA) and sub-2 pF capacitance enable fast transient response in clamping and steering applications.
The device operates over −65 °C to +150 °C ambient and junction temperature, with absolute maximum ratings including 70 V VR, 70 mA IF, and 100 mA IFSM (10 ms pulse). Thermal resistance of 500 K/W (junction-to-ambient, FR4 single-sided copper) defines its power dissipation limits in unheatsinked layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 70 V - supports clamping in 48 V and 5V rail protection without breakdown. |
| Forward Voltage (VF) | 410 mV @ 1 mA - minimizes conduction loss in low-current signal path steering. |
| Reverse Leakage (IR) | 100 nA @ 50 V - ensures minimal standby current in battery-backed or low-power logic interfaces. |
| Diode Capacitance (Cd) | 2 pF @ 0 V, 1 MHz - preserves signal integrity in >100 MHz switching and RF detector circuits. |
| Thermal Resistance (Rth(j-a)) | 500 K/W - limits power handling to ~150 mW on standard FR4 PCB without heatsinking. |
| Package | SOT323 (SC-70) - 2.0 × 1.25 × 0.95 mm footprint ideal for space-constrained portable electronics. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package with 3 leads, 1.3 mm pitch, and standardized footprint per Figure 6 (reflow) and Figure 7 (wave) in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 (A1) | Input node for first Schottky path; connects to source of clamped signal or supply rail. |
| 2 | Anode of Diode 2 (A2) | Independent input node for second Schottky path; enables dual-rail or dual-signal clamping. |
| 3 | Common Cathode (K1/K2) | Shared output node tied to reference (e.g., ground or regulated rail); simplifies PCB routing. |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | Enabled by low stored charge and Schottky barrier - supports >100 MHz operation in clamp/steer roles. |
| Low leakage current | 100 nA @ 50 V - maintains signal fidelity in high-impedance analog monitoring nodes. |
| High breakdown voltage | 70 V VR - accommodates industrial 48 V systems and transient surges beyond 5 V/12 V rails. |
| Low capacitance | 2 pF @ 0 V - avoids signal distortion in RF envelope detection and high-frequency data line protection. |
Applications
| USB Data Line Protection | LVDS Signal Clamping |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+/D− lines from ESD and overvoltage transients. IC Role / Device Role / Timing Role: Dual-anode Schottky clamp directing surge current to ground via common cathode. Use Value: 2 pF capacitance prevents signal rise-time degradation; 410 mV VF ensures minimal DC offset during normal operation. |
Use Scenario: Preventing overshoot/undershoot on LVDS receiver inputs in FPGA-to-ASIC interconnects. IC Role / Device Role / Timing Role: Low-capacitance voltage limiter referenced to common ground plane. Use Value: 70 V VR withstands ±30 V transients; dual-anode layout allows independent clamping of both LVDS polarities. |
| Power Rail OR-ing | RF Detector Biasing |
Use Scenario: Implementing diode-based OR-ing between redundant 3.3 V supplies in embedded controllers. IC Role / Device Role / Timing Role: Dual-anode configuration used as back-to-back steering diodes for supply isolation. Use Value: 70 mA IF rating supports up to 100 mA load sharing; low VF reduces voltage drop and heat generation. |
Use Scenario: Biasing Schottky detector diodes in 2.4 GHz ISM-band RF power monitors. IC Role / Device Role / Timing Role: Low-Cd, low-VF junction providing stable DC bias point for envelope detection. Use Value: 2 pF capacitance avoids resonant detuning at 2.4 GHz; 100 nA IR prevents bias drift in low-current detector circuits. |
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 Schottky (not dual), SOD-123, 30 V VR, 200 mA IF, 450 mV VF @ 10 mA | Lacks dual-anode topology; requires two devices for same function; higher IF but lower VR | Select when higher current per diode is needed and board area permits discrete placement. |
| Diodes Incorporated BAV99W-7-F | Dual series-switching configuration (anode-cathode-anode), SOT-323, 70 V VR, 215 mA IF, 1.25 V VF @ 50 mA | Series topology increases VF and limits clamping symmetry; optimized for switching, not clamping | Prefer for high-speed digital switching; avoid where low VF clamping or matched dual paths are required. |
Compared with NSR0230HT1G and BAV99W-7-F, the BAS70-05W uniquely provides matched dual-anode clamping in one SOT323 package with lowest VF and Cd - making it optimal for space-constrained, low-distortion voltage limiting where symmetry and signal integrity are critical.
Availability
BAS70-05W is available at Aetrix Electronics and suitable for USB interface protection, LVDS signal integrity maintenance, and redundant power rail OR-ing requiring stable component supply, consistent marking (75% code), and non-automotive qualification compliance.
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 discrete and logic devices, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The BAS70 series targets cost-sensitive, space-constrained consumer and industrial applications requiring robust, low-VF Schottky performance - emphasizing manufacturability, thermal stability, and compatibility with standard SMT processes.
FAQ
Is BAS70-05W qualified for automotive applications?
No. Per Revision History section 13, this part was explicitly changed to non-automotive qualification in the January 2023 datasheet revision. Automotive alternatives (e.g., BAS70-05W-Q) must be sourced separately from Nexperia's qualified portfolio and carry distinct part numbering and qualification documentation.
What is the meaning of the '75%' marking on BAS70-05W?
The '75%' marking is a manufacturing site code placeholder per Table 4. The '%' symbol is replaced with a specific alphabetic character indicating the fabrication location (e.g., 'A' for Nijmegen, 'B' for Bangkok). This code enables traceability but does not affect electrical performance or package dimensions.
Can BAS70-05W replace BAS70-05T in existing designs?
No. BAS70-05T uses SOT23 package (3-pin, different pinout: anode-cathode-anode), while BAS70-05W uses SOT323 with common-cathode pinning (A1-A2-K). Footprint, soldering profile, and circuit connectivity differ - direct replacement requires PCB redesign and validation of thermal and signal integrity impact.
How does thermal resistance change with PCB copper area?
Rth(j-a) = 500 K/W assumes FR4 with single-sided 1 oz copper and standard SOT323 footprint (Figure 6). Adding 10 mm² of 2 oz copper pour under the package reduces Rth(j-a) to ~250 K/W; doubling copper area further improves dissipation but diminishing returns apply beyond 25 mm² due to epoxy thermal resistance limits.
BAS70-05W,135 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,135 FAQ
1.How can I place an order for BAS70-05W,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70-05W,135 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,135 reliable?
The price and inventory of BAS70-05W,135 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,135 is usually 5 days.
3.What payment methods are accepted for BAS70-05W,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70-05W,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70-05W,135?
BAS70-05W,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70-05W,135 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,135?
For technical support, including BAS70-05W,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70-05W,135 requirements.
6.How does Aetrix verify that BAS70-05W,135 is sourced from the original manufacturer or authorized distributors?
All BAS70-05W,135 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,135 meets industry standards.
7.What is the process for return or replacement of BAS70-05W,135?
All BAS70-05W,135 units undergo pre-shipment inspection (PSI). If there is an issue with BAS70-05W,135, 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,135 part is unused and in its original packaging.
Return procedure for BAS70-05W,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70-05W,135 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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