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Nexperia USA Inc. BAS70-04W,115
- Part No.:
- BAS70-04W,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS70-04W,115.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:47,007
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Product details
Overview
BAS70-04W from Nexperia is a general-purpose dual Schottky diode in SOT323 (SC-70) package, configured as two independent diodes sharing a common cathode/anode terminal (pin 3). It delivers 70 V reverse voltage rating, 70 mA forward current capability, and 410 mV typical forward voltage at 1 mA, enabling ultra-high-speed switching and low-loss voltage clamping in compact DC-DC converter feedback paths.
For engineers reviewing the BAS70-04W datasheet, BAS70-04W pinout, BAS70-04W application, or BAS70-04W equivalent, key selection criteria include its dual-diode topology with shared terminal, low 2 pF capacitance at 0 V, 100 nA reverse leakage at 50 V, thermal resistance of 500 K/W, and suitability for space-constrained signal routing and rail clamping in portable power management circuits.
Technical Context
The BAS70-04W integrates two discrete Schottky junctions in a single SC-70 package with pin 1 = anode of diode 1, pin 2 = cathode of diode 2, and pin 3 = shared cathode (diode 1) / anode (diode 2). Its low forward voltage and fast recovery stem from platinum-silicide Schottky barrier formation, not PN junction behavior.
Thermal performance is defined for mounting on FR4 PCB with single-sided copper and standard footprint, yielding 500 K/W junction-to-ambient resistance. The device operates across −65 °C to +150 °C ambient and junction temperature ranges, with non-repetitive peak forward current rated at 100 mA for 10 ms pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 70 V - supports clamping up to 70 V rails without breakdown under steady-state conditions |
| Forward Voltage (VF) | 410 mV @ 1 mA - enables low-loss biasing and sensing in low-current signal paths |
| Reverse Leakage (IR) | 100 nA @ 50 V - ensures minimal standby current in high-impedance clamp or level-shift networks |
| Diode Capacitance (Cd) | 2 pF @ 0 V, 1 MHz - preserves signal integrity in >100 MHz RF or high-speed digital edge detection |
| Thermal Resistance (Rth(j-a)) | 500 K/W - requires careful PCB copper area planning for sustained 70 mA operation |
| Peak Forward Current (IFSM) | 100 mA @ 10 ms - handles transient surges in ESD protection or flyback snubbing |
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 of Diode 1 (A1) | Input node for first Schottky path; connects to source of clamped signal or supply rail |
| 2 | Cathode of Diode 2 (K2) | Output node for second Schottky path; routes clamped or rectified output to load |
| 3 | Shared Terminal (K1/A2) | Common cathode for D1 and anode for D2 - enables series-connected or complementary clamp configurations |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | Sub-nanosecond recovery enabled by Schottky barrier physics - no minority carrier storage delay |
| Low leakage current | 100 nA at 50 V reverse bias - minimizes quiescent error in precision voltage reference or sensor bias networks |
| Low capacitance | 2 pF at zero bias - maintains bandwidth in RF detector or high-frequency logic clamping applications |
| High breakdown voltage | 70 V VR rating - allows direct use in 48 V industrial bus monitoring and 24 V automotive accessory circuits |
Applications
| Power Supply Feedback Clamping | High-Speed Logic Level Shifting |
|---|---|
Use Scenario: Clamping error amplifier output in isolated DC-DC converters to prevent overdrive of optocoupler input. IC Role / Device Role / Timing Role: Dual-diode clamp limiting voltage swing between ±0.3 V and VCC + 0.3 V while preserving fast transient response. Use Value: Prevents saturation-induced delay in regulation loop without adding RC filtering that degrades bandwidth. |
Use Scenario: Translating 1.8 V LVCMOS signals to 3.3 V interface without active level shifter IC. IC Role / Device Role / Timing Role: Passive bidirectional level translator using shared-terminal configuration for direction-agnostic signal coupling. Use Value: Achieves <1 ns propagation delay with no power supply required, reducing BOM count in FPGA I/O banks. |
| RF Detector Input Protection | ESD-Safe Signal Routing |
Use Scenario: Protecting logarithmic amplifier input in GSM/UMTS front-end modules from antenna-induced RF transients. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp diverting RF energy before it reaches sensitive analog input stage. Use Value: 2 pF capacitance avoids detuning matching networks; 70 V VR withstands burst-mode RF peaks. |
Use Scenario: Guarding USB data lines against human-body-model ESD events in portable medical devices. IC Role / Device Role / Timing Role: Dual-path low-leakage clamp providing symmetrical ±70 V standoff and sub-100 nA leakage at operating voltage. Use Value: Meets IEC 61000-4-2 Level 4 without compromising signal integrity on 480 Mbps differential pairs. |
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 (520 mV @ 1 mA), same 70 V VR, SOD-323 package (larger footprint) | Less suitable for ultra-low-voltage bias networks due to higher forward drop | Select when board layout allows larger SOD-323 and higher surge current (150 mA IFSM) is needed |
| Diodes Incorporated SD103AWS-7-F | Lower VR (30 V), lower VF (370 mV @ 1 mA), same SOT323 package, higher IR (500 nA @ 25 V) | Not usable in 48 V systems; better for 3.3 V/5 V logic clamping where leakage is less critical | Select only for low-voltage, high-speed digital interfaces where 70 V rating is unnecessary |
Compared with NSR20F70HT1G and SD103AWS-7-F, the BAS70-04W uniquely balances 70 V standoff, 410 mV VF, and 2 pF capacitance in the smallest SOT323 footprint-making it optimal for space-constrained, mixed-voltage clamping where both voltage headroom and signal fidelity matter.
Availability
BAS70-04W is available at Aetrix Electronics and suitable for ultra-high-speed switching, voltage clamping, RF detector protection, and ESD-safe signal routing requiring stable component supply across industrial, medical, and communications equipment lifecycles.
Supply support for BAS70-04W 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 delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for efficiency-critical applications in automotive, industrial, and mobile markets.
The BAS70-04W belongs to Nexperia's general-purpose Schottky diode family, engineered specifically for compact, high-frequency clamping and signal routing where low VF, low Cd, and robust VR are simultaneously required.
FAQ
What is the maximum continuous forward current for BAS70-04W?
The maximum continuous forward current is 70 mA per diode, as specified in the Absolute Maximum Ratings table. This rating applies at Tamb = 25 °C with device mounted on FR4 PCB per standard footprint. Derating is required above 25 °C ambient, following the thermal resistance of 500 K/W and maximum junction temperature of 150 °C.
Can BAS70-04W be used in automotive applications?
No. The BAS70-04W is explicitly marked as non-automotive qualified in the revision history. It lacks AEC-Q101 qualification and has not undergone automotive-grade stress testing. For automotive use, Nexperia offers the -Q qualified variants such as BAS70-04W-Q, which must be selected separately and verified for specific vehicle subsystem requirements.
How does the shared terminal (pin 3) function in circuit design?
Pin 3 serves as cathode for diode 1 and anode for diode 2, enabling three distinct topologies: independent dual diodes (with external connection isolation), series-connected clamps (e.g., back-to-back for AC signal limiting), or complementary rail clamps (e.g., VCC-to-GND and GND-to-VCC). Its dual-role eliminates need for separate components in folded or bidirectional protection schemes.
Is BAS70-04W RoHS compliant and halogen-free?
Yes. Per Nexperia's product compliance documentation, BAS70-04W meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The SOT323 package uses lead-free matte tin termination, and the device carries Nexperia's standard environmental compliance marking on its top-side laser marking (code "74%" with site placeholder).
BAS70-04W,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 Series Connection
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 70 V
- Current - Average Rectified (Io) (per Diode):
- 70mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 410 mV @ 1 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAS70-04W,115 FAQ
1.How can I place an order for BAS70-04W,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70-04W,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 BAS70-04W,115 reliable?
The price and inventory of BAS70-04W,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70-04W,115 is usually 5 days.
3.What payment methods are accepted for BAS70-04W,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70-04W,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70-04W,115?
BAS70-04W,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70-04W,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 BAS70-04W,115?
For technical support, including BAS70-04W,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70-04W,115 requirements.
6.How does Aetrix verify that BAS70-04W,115 is sourced from the original manufacturer or authorized distributors?
All BAS70-04W,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 BAS70-04W,115 meets industry standards.
7.What is the process for return or replacement of BAS70-04W,115?
All BAS70-04W,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAS70-04W,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 BAS70-04W,115 part is unused and in its original packaging.
Return procedure for BAS70-04W,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70-04W,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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