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Nexperia USA Inc. BAS70L,315
- Part No.:
- BAS70L,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-882
- Datasheet:
-
BAS70L,315.pdf
- Description:
- DIODE SCHOTTKY 70V 70MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:19,228
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Product details
Overview
BAS70L from Nexperia is a general-purpose Schottky diode in an ultra-small DFN1006-2 (SOD882) leadless SMD package, rated for 70 V reverse voltage, 70 mA forward current, and 410 mV forward voltage at 1 mA pulsed conditions; it delivers low capacitance (2 pF), low leakage (100 nA at 50 V), and high-speed switching for compact power rail clamping and signal routing.
For engineers reviewing the BAS70L datasheet, BAS70L pinout, BAS70L application, or BAS70L equivalent, key selection criteria include its 70 V VR rating, 2 pF junction capacitance, cathode-marked DFN1006-2 footprint, thermal resistance of 500 K/W, and suitability for space-constrained DC-DC feedback paths and high-frequency clamp circuits.
Technical Context
The BAS70L operates as a low-forward-voltage, low-capacitance Schottky barrier diode optimized for ultra-high-speed switching in low-power signal and bias networks. Its junction design enables fast recovery with minimal stored charge, while the DFN1006-2 package ensures minimal parasitic inductance and thermal resistance.
It functions under pulsed forward conditions (tp ≤ 300 µs, duty ≤ 0.02) with stable VF across temperature (−40 °C to 125 °C), and exhibits predictable reverse leakage up to 70 V - making it suitable for precision clamping where leakage-induced offset must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 70 V - Maximum DC or repetitive peak reverse voltage before breakdown; defines safe operating range in clamp and flyback protection. |
| IF (Forward Current) | 70 mA - Continuous DC forward current limit; sets maximum steady-state conduction capability without thermal runaway. |
| VF (Forward Voltage) | 410 mV @ 1 mA pulsed - Low conduction loss at light loads; critical for efficiency in low-current bias and sensing paths. |
| IR (Reverse Current) | 100 nA @ 50 V - Ultra-low leakage preserves signal integrity in high-impedance nodes and reference circuits. |
| Cd (Diode Capacitance) | 2 pF @ 0 V, 1 MHz - Enables operation beyond 100 MHz in RF coupling and high-speed logic clamping. |
| Rth(j-a) | 500 K/W - Thermal resistance in free air on FR4 PCB; informs derating for ambient temperatures above 25 °C. |
| Tj (Junction Temp) | 150 °C - Maximum allowable junction temperature; supports operation in industrial environments with local heating. |
Pinout & Package
Package: DFN1006-2 (SOD882), 1.0 mm × 0.6 mm × 0.48 mm body, leadless, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to lower-potential node in forward bias; marking bar identifies this terminal for correct PCB layout orientation. |
| 2 | Anode (A) | Connected to higher-potential node during conduction; serves as input for clamping or output for rectification in low-current paths. |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | Enabled by low stored charge and Schottky barrier structure - supports >100 MHz signal routing without distortion. |
| Low leakage current | 100 nA at 50 V reverse bias - maintains accuracy in high-Z analog monitoring and precision voltage references. |
| Low forward voltage | 410 mV at 1 mA - reduces power loss and self-heating in battery-powered sensor bias networks. |
| Ultra-small footprint | DFN1006-2 (0.6 mm pitch, 1.0 × 0.6 mm) - saves board area in wearables, IoT nodes, and multi-rail PMIC layouts. |
| Reflow-compatible packaging | Leadless construction qualified for standard reflow soldering only - eliminates hand-soldering risk and improves assembly yield. |
Applications
| Power Rail Clamping | High-Speed Signal Routing |
|---|---|
|
Use Scenario: Protecting low-voltage microcontroller I/O pins from transient overvoltage during hot-plug or ESD events. IC Role / Device Role / Timing Role: Fast-acting shunt clamp that conducts within nanoseconds to limit voltage excursion below absolute maximum ratings. Use Value: 2 pF capacitance avoids signal edge degradation; 410 mV VF ensures clamping threshold remains well below 3.3 V logic rails. |
Use Scenario: AC-coupling between RF transceiver stages while blocking DC bias in 2.4 GHz ISM-band modules. IC Role / Device Role / Timing Role: Passive signal path diode used in series configuration for DC isolation and minimal insertion loss. Use Value: 2 pF junction capacitance yields <0.3 dB loss at 2.4 GHz; low IR prevents DC drift in sensitive LNA bias networks. |
| DC-DC Feedback Path | Low-Current Bias Network |
|
Use Scenario: Providing precise voltage reference feedback to the error amplifier in a buck converter's optocoupler-isolated secondary side. IC Role / Device Role / Timing Role: Reverse-biased Schottky in feedback divider to minimize leakage-induced offset error. Use Value: 100 nA IR at 50 V ensures <1 mV error in 100 kΩ feedback network; 70 V VR accommodates wide output range designs. |
Use Scenario: Generating stable bias current for photodiode transimpedance amplifiers in portable medical pulse oximeters. IC Role / Device Role / Timing Role: Forward-biased diode providing temperature-compensated reference voltage in constant-current source topology. Use Value: 410 mV VF at 1 mA enables accurate 1 µA–10 µA bias generation; low TCR ensures stability across −20 °C to 70 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB521S-30T2R | 30 V VR, 200 mA IF, 370 mV VF @ 10 mA - lower voltage rating but higher current capacity and slightly lower VF at moderate loads. | Not suitable for 48 V or 54 V clamp circuits; preferred in 3.3 V/5 V USB power path protection where higher IF margin is needed. | Select when system VR < 30 V and pulsed IF exceeds 70 mA; verify thermal performance with Rth(j-a) = 400 K/W. |
| NSR0230HT1G | 30 V VR, 200 mA IF, 450 mV VF @ 100 mA - similar low-Cd (1.5 pF) but higher VF and same VR limitation. | Used in automotive infotainment USB ports; lacks 70 V capability required for industrial 24/48 V supply monitoring. | Choose for cost-sensitive consumer electronics with VR ≤ 30 V; avoid where 50–70 V reverse stress occurs. |
Compared with RB521S-30T2R and NSR0230HT1G, the BAS70L uniquely supports 70 V reverse operation in the same ultra-small DFN1006-2 footprint - enabling direct use in 48 V telecom and industrial control clamping without redesigning layout or derating.
Availability
BAS70L is available at Aetrix Electronics and suitable for power rail clamping, high-speed signal routing, and DC-DC feedback path applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for BAS70L 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, with leadership in advanced packaging and automotive-grade qualification.
The BAS70L belongs to Nexperia's general-purpose Schottky diode portfolio, engineered for space-constrained, high-frequency applications demanding low VF, low Cd, and robust thermal performance in consumer, industrial, and communications equipment.
FAQ
Is the BAS70L suitable for automotive applications?
No. The BAS70L is explicitly designated as non-automotive qualified per its revision history (v.11, Jan 2023). It lacks AEC-Q101 qualification, automotive-grade testing, and guaranteed extended temperature operation beyond 150 °C junction. For automotive use, Nexperia offers the BAS70-07W-Q or BAS70H-Q variants with full qualification documentation.
What is the recommended soldering method for the BAS70L?
Reflow soldering is the only recommended method, per Nexperia's thermal characteristics section. Hand soldering or wave soldering is not supported due to the DFN1006-2 package's thermal sensitivity and lack of leads. Reflow profile must comply with JEDEC J-STD-020, peak temperature ≤ 260 °C, and dwell time within specification limits.
Does the cathode marking apply to both top-side silkscreen and physical package feature?
Yes. The cathode is indicated by a visible marking bar on the top surface of the DFN1006-2 package, as shown in Figure 5 of the datasheet. This bar aligns with Pin 1 (cathode) and is intended for visual and automated optical inspection (AOI) during placement and post-solder verification.
How does the BAS70L's thermal resistance change with PCB copper area?
Rth(j-a) = 500 K/W is measured on a single-sided FR4 board with standard footprint and tin-plated copper. Increasing copper area (e.g., 2 oz Cu, thermal vias, or internal ground planes) can reduce Rth(j-a) by 20–40%, but no official characterization data is provided beyond the baseline condition. Derating must follow the datasheet's Tamb vs. IF curves.
BAS70L,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 70 V
- Current - Average Rectified (Io):
- 70mA
- 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
- Capacitance @ Vr, F:
- 2pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006-2
- Operating Temperature - Junction:
- 150°C (Max)
BAS70L,315 FAQ
1.How can I place an order for BAS70L,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70L,315 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 BAS70L,315 reliable?
The price and inventory of BAS70L,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70L,315 is usually 5 days.
3.What payment methods are accepted for BAS70L,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70L,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70L,315?
BAS70L,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70L,315 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 BAS70L,315?
For technical support, including BAS70L,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70L,315 requirements.
6.How does Aetrix verify that BAS70L,315 is sourced from the original manufacturer or authorized distributors?
All BAS70L,315 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 BAS70L,315 meets industry standards.
7.What is the process for return or replacement of BAS70L,315?
All BAS70L,315 units undergo pre-shipment inspection (PSI). If there is an issue with BAS70L,315, 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 BAS70L,315 part is unused and in its original packaging.
Return procedure for BAS70L,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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