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Diodes Incorporated BAS70TW-7
- Part No.:
- BAS70TW-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAS70TW-7.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:7,532
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Product details
Overview
BAS70TW-7 from Diodes Incorporated is a surface-mount Schottky barrier diode array in SOT363 package, configured as two independent low-leakage diodes with 70 V reverse voltage rating, 1.0 mA forward current capability, and 410 mV max forward voltage at 1.0 mA. It serves as polarity protection or rail-to-rail data line protection in space-constrained automotive and industrial control circuits.
For engineers reviewing the BAS70TW-7 datasheet, BAS70TW-7 pinout, BAS70TW-7 application, or BAS70TW-7 equivalent, this dual Schottky array offers AEC-Q101 qualification, ultra-low IR (100 nA @ 50 V), fast 5.0 ns reverse recovery, and symmetrical SOT363 terminal layout for compact bidirectional signal conditioning.
Technical Context
This dual Schottky array integrates two independent anode-cathode junctions in one SOT363 package, each rated for 70 V peak repetitive reverse voltage and 70 mA continuous forward current. Its 410 mV VF max at 1.0 mA enables efficient low-power clamping and protection without significant voltage drop penalty.
The device features PN junction guard rings for ESD and transient immunity, achieves 2.0 pF total capacitance at 0 V bias, and maintains stable leakage (<100 nA) up to 50 V reverse bias - critical for precision analog input protection and high-impedance sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (V) | 70 V - supports protection of 48 V systems and 3.3/5 V logic rails against overvoltage transients |
| IF (mA) | 1.0 mA - specifies test condition for VF measurement; actual continuous rating is 70 mA per diode |
| VF MAX (V) | 0.41 V @ 1.0 mA - ensures minimal forward drop in low-current signal path clamping applications |
| IR MAX (µA) | 0.10 µA @ +25°C - ultra-low leakage preserves accuracy in high-impedance sensor front-ends |
| tRR (ns) | 5.0 ns - enables use in >100 MHz digital line protection and multiplexing switching |
| CT (pF) | 2.0 pF @ 0 V - minimizes capacitive loading on high-speed data lines such as I²C or UART |
| Package | SOT363 - 6-pin, symmetrical, no orientation indicator; footprint compatible with automated placement |
Pinout & Package
Package: SOT363 - ultra-small surface-mount plastic package (2.0 × 2.225 mm), moisture sensitivity level 1, matte tin-plated leads, weight ≈ 0.006 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (A1) | Anode of Diode 1 | Input node for first Schottky junction; connects to protected line or supply rail |
| Pin 2 (C1) | Cathode of Diode 1 | Output node for Diode 1; ties to reference (e.g., VCC or GND) for polarity protection |
| Pin 3 (A2) | Anode of Diode 2 | Independent input node for second Schottky junction; enables dual-line protection |
| Pin 4 (C2) | Cathode of Diode 2 | Independent output node; allows separate routing to distinct reference points |
| Pins 5 & 6 (AC1, AC2) | Common Anode Connection | Internally tied anodes - confirmed by BAS70TW marking code and symmetrical configuration in DS30158 |
Key Features
| Feature | Design Value |
|---|---|
| Low Forward Voltage Drop | 0.41 V max @ 1.0 mA - reduces power loss and heating in battery-powered protection circuits |
| Fast Switching | 5.0 ns reverse recovery - prevents signal distortion during high-frequency transient suppression |
| PN Junction Guard Ring | Integrated ESD protection - meets IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) without external components |
| AEC-Q101 Qualified | Validated for automotive underhood environments - operates reliably from −55 °C to +125 °C |
| Ultra-Small SOT363 | 2.0 × 2.225 mm footprint - saves >60% board area vs. discrete SOD-323 diodes for dual-channel designs |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting LIN bus and CAN transceiver I/O pins from load dump and ESD events in door modules. IC Role / Device Role / Timing Role: Dual Schottky clamp - one diode for VBAT rail protection, one for signal line clamping to VCC/GND. Use Value: Eliminates need for two separate SOD-323 diodes while maintaining <100 nA leakage at 12 V, preserving sleep-mode current budget. |
Use Scenario: Bidirectional clamping of analog sensor outputs (e.g., thermistor, RTD) before ADC input stages. IC Role / Device Role / Timing Role: Rail-to-rail protection diode pair - limits voltage excursions to within ±0.41 V of supply rails. Use Value: 2.0 pF capacitance avoids signal integrity degradation at 100 kHz sensor bandwidth; guard ring suppresses ESD-induced ADC offset shifts. |
| USB Type-C Port Protection | Smart Meter Communication Interface |
|
Use Scenario: Data line (D+/D−) transient suppression in USB 2.0 ports exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Symmetrical dual Schottky array - each diode clamps one data line to its respective reference rail. Use Value: 5.0 ns tRR ensures no data eye closure at 480 Mbps; 0.41 V VF enables clamping below USB receiver threshold (0.8 V). |
Use Scenario: Isolating RS-485 transceiver inputs from induced surges on utility meter communication buses. IC Role / Device Role / Timing Role: High-efficiency bridge rectifier element - used in low-current auxiliary power harvesting from differential bus lines. Use Value: 70 V VR rating withstands 60 V common-mode transients; 70 mA IF rating supports 10 mA auxiliary bias generation with <0.5 °C self-heating error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAS70DW-05-7-F | Identical SOT363 package and electrical specs; differs only in marking code (K71) and internal configuration - same symmetrical dual-anode layout | No functional difference; qualified for same AEC-Q101 automotive applications | Select when sourcing consistency with existing DW-series BOMs or preferred distributor stock |
| NSR20F70NXT5G | Higher IF rating (200 mA), higher VF (0.55 V @ 1 mA), same 70 V VR and SOT-363 package | Better suited for higher-current rail clamping but increases signal path voltage offset | Choose when system requires >100 mA surge handling and can tolerate +140 mV VF penalty |
Compared with BAS70TW-7, BAS70DW-05-7-F offers identical performance and automotive qualification with alternate marking, while NSR20F70NXT5G trades lower leakage and tighter VF for higher surge current capability - making it suitable for power-rail rather than signal-line protection.
Availability
BAS70TW-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, USB Type-C port protection, and smart meter communication interfaces requiring stable component supply and AEC-Q101 compliance.
Supply support for BAS70TW-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BAS70 series belongs to Diodes' precision Schottky diode product line, engineered specifically for low-leakage, high-speed protection in automotive and industrial signal conditioning applications where space, reliability, and parametric stability are critical.
FAQ
Is BAS70TW-7 AEC-Q101 qualified?
Yes, BAS70TW-7 is AEC-Q101 qualified and manufactured in IATF 16949 certified facilities. Its qualification covers temperature cycling, high-temperature operating life, and ESD testing per AEC-Q101 standards, enabling use in automotive underhood and body electronics without additional qualification effort.
What is the pin configuration of BAS70TW-7 in SOT363?
BAS70TW-7 uses a symmetrical dual-anode configuration: Pins 1 and 3 are anodes (A1, A2), Pins 2 and 4 are cathodes (C1, C2), and Pins 5 and 6 are internally connected common anodes (AC1, AC2). The device has no orientation marker, and the top-view pinout matches the standard SOT363 outline in Diodes' DS30158.
How does BAS70TW-7 compare to single-diode Schottkys like BAT54S?
BAS70TW-7 provides two independent Schottky junctions in one SOT363 package with matched characteristics, whereas BAT54S is a dual-common-cathode configuration. BAS70TW-7's symmetrical dual-anode layout enables flexible rail-to-rail clamping without shared cathode constraints, reducing PCB routing complexity in differential signal protection.
Can BAS70TW-7 be used in place of BAS70BRW-7-F?
No - BAS70BRW-7-F is a bridge rectifier configuration (two anodes, two cathodes, center-tap output), while BAS70TW-7 is a dual-anode array with isolated cathodes. Their internal connectivity differs fundamentally: BRW supports full-wave rectification, whereas TW supports independent bidirectional clamping - substitution would cause circuit malfunction.
BAS70TW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Diode Configuration:
- 3 Independent
- 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):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
BAS70TW-7 FAQ
1.How can I place an order for BAS70TW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70TW-7 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 BAS70TW-7 reliable?
The price and inventory of BAS70TW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70TW-7 is usually 5 days.
3.What payment methods are accepted for BAS70TW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70TW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70TW-7?
BAS70TW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70TW-7 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 BAS70TW-7?
For technical support, including BAS70TW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70TW-7 requirements.
6.How does Aetrix verify that BAS70TW-7 is sourced from the original manufacturer or authorized distributors?
All BAS70TW-7 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 BAS70TW-7 meets industry standards.
7.What is the process for return or replacement of BAS70TW-7?
All BAS70TW-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAS70TW-7, 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 BAS70TW-7 part is unused and in its original packaging.
Return procedure for BAS70TW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70TW-7 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
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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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