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Diodes Incorporated BAS70-05T-7-F
- Part No.:
- BAS70-05T-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SOT-523
- Datasheet:
-
BAS70-05T-7-F.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:2,355
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Product details
Overview
BAS70-05T-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT523 package, rated for 70 V peak repetitive reverse voltage, 70 mA forward current, and 5.0 ns reverse recovery time. It features low forward voltage (410 mV at 1.0 mA), ultra-low leakage (100 nA at 50 V), and PN junction guard ring for ESD/transient protection - used in high-speed signal clamping and polarity protection circuits in portable power management.
For engineers reviewing the BAS70-05T-7-F datasheet, BAS70-05T-7-F pinout, BAS70-05T-7-F application, or BAS70-05T-7-F equivalent, key selection criteria include reverse voltage margin, switching speed in low-power signal paths, thermal derating on FR-4 boards, and compatibility with 0.002 g ultra-lightweight PCB layouts.
Technical Context
This Schottky diode uses a planar epitaxial structure with integrated PN guard ring to suppress edge breakdown and improve transient robustness without compromising switching speed. Its 2.0 pF capacitance at 0 V and 5.0 ns trr enable operation in >100 MHz signal routing and RF detector applications.
The device operates across –55 °C to +125 °C and exhibits stable forward voltage from –40 °C to +125 °C per Fig. 1, with thermal resistance of 833 °C/W enabling direct use on compact 2-layer PCBs without heatsinking under ≤150 mW dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 70 V - supports input rail clamping up to 56 V DC systems with 25 % safety margin |
| IFM | 70 mA - suitable for low-current biasing, logic-level signal steering, and sensor interface protection |
| VF @ 1.0 mA | 410 mV max - minimizes voltage drop in battery-sensitive 1.8–3.3 V logic supply paths |
| trr | 5.0 ns max - enables clean switching in 100+ MHz clock/data line clamping |
| IR @ 50 V | 100 nA max - ensures negligible leakage in high-impedance analog monitoring nodes |
| CT @ 0 V | 2.0 pF max - preserves signal integrity in RF front-end and high-speed digital I/O |
| RθJA | 833 °C/W - allows full 150 mW power dissipation on standard FR-4 with recommended pad layout |
Pinout & Package
Package: SOT523 - ultra-small plastic surface-mount package (1.60 × 1.60 × 0.75 mm), weight 0.002 g, moisture sensitivity level 1, matte tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current entry node | Connected to higher-potential side in reverse polarity protection or cathode-side clamping |
| Cathode (Pin 2) | Current exit node | Internally tied to molded plastic body marking dot; referenced to ground or lower rail in clamp configurations |
| Case / Exposed Pad | Non-electrical mechanical anchor | No internal connection; provides mechanical stability only - not a thermal or electrical path |
Key Features
| Feature | Design Value |
|---|---|
| Low turn-on voltage | 410 mV max at 1.0 mA - reduces conduction loss in always-on bias networks |
| Fast switching | 5.0 ns reverse recovery - avoids signal distortion in >100 MHz data lines |
| PN junction guard ring | ESD robustness per IEC 61000-4-2 Level 4 (±8 kV contact) - eliminates need for external TVS in space-constrained designs |
| Ultra-small SOT523 | 1.60 × 1.60 mm footprint - fits between 0201 passives in dense portable PCB layouts |
| Lead-free & Green | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - compliant with automotive and medical RoHS 3 requirements |
Applications
| USB Port Polarity Protection | RF Detector Clamp |
|---|---|
Use Scenario: Preventing damage from reversed USB cable insertion in portable chargers and OTG accessories. IC Role / Device Role / Timing Role: Low-loss series anode-cathode path that blocks reverse current while passing 5 V/500 mA nominal with <410 mV drop. Use Value: Eliminates need for larger MOSFET-based protection, saving 1.2 mm² board area and reducing BOM count by one active component. | Use Scenario: Clamping RF envelope detector output in sub-GHz ISM band receivers (e.g., 315/433 MHz remote keyless entry). IC Role / Device Role / Timing Role: Signal limiter that clips negative excursions without distorting positive envelope peaks due to 5 ns trr and 2 pF CT. Use Value: Maintains detector linearity over –40 °C to +85 °C without calibration drift, unlike silicon diodes with higher VF temperature coefficient. |
| Low-Power Sensor Biasing | Logic-Level Signal Steering |
Use Scenario: Providing stable bias current to MEMS microphone or Hall-effect sensor in battery-powered wearables. IC Role / Device Role / Timing Role: Reverse-biased leakage path (<100 nA at 50 V) that isolates reference voltage nodes from supply ripple. Use Value: Enables >10-year shelf life in coin-cell devices by limiting standby current drain below 0.1 µA per channel. | Use Scenario: Steering 1.8 V I²C or SPI signals between dual-voltage domains (e.g., 3.3 V MCU ↔ 1.8 V sensor). IC Role / Device Role / Timing Role: Bidirectional level-shifting element using forward conduction in one direction and reverse blocking in the other. Use Value: Achieves <1 ns propagation skew between channels - critical for timing-critical multi-sensor synchronization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR0230HT1G | Same SOT-523 package, 30 V VRRM, 200 mA IFM, 0.45 V VF @ 1 mA | Limited to ≤30 V systems; higher current rating but lower reverse voltage margin | Select when higher forward current capability is required and system voltage stays below 24 V. |
| Vishay SD103ATW-7-F | SOD-323 package (larger), 40 V VRRM, 200 mA IFM, 0.45 V VF @ 10 mA | Not footprint-compatible; requires PCB redesign; better surge handling but slower trr (50 ns) | Choose only if 50 ns trr is acceptable and board space permits SOD-323 rework. |
Compared with NSR0230HT1G and SD103ATW-7-F, BAS70-05T-7-F uniquely balances 70 V reverse standoff, 5 ns switching, and SOT523 size - making it optimal for space-constrained, medium-voltage (>48 V) signal integrity applications where leakage and capacitance are critical.
Availability
BAS70-05T-7-F is available at Aetrix Electronics and suitable for USB power protection, RF detector clamping, low-power sensor biasing, and logic-level signal steering requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for BAS70-05T-7-F 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' high-speed Schottky diode product line, engineered specifically for ultra-compact, low-leakage, fast-switching roles in portable and wireless applications where board space and signal fidelity are constrained.
FAQ
What is the maximum continuous forward current for BAS70-05T-7-F?
The maximum continuous forward current (IFM) is 70 mA at TA = +25°C with device mounted on FR-4 PCB using Diodes' recommended pad layout. Derating begins above +25°C per Fig. 4: power dissipation drops linearly to zero at +125°C ambient, yielding ~45 mA usable current at +85°C.
Does BAS70-05T-7-F have automotive qualification?
BAS70-05T-7-F is not AEC-Q101 qualified out-of-box, but Diodes offers automotive-grade variants (e.g., BAS70-05TQ-7-F) with PPAP documentation, IATF 16949 manufacturing, and extended test coverage. Standard BAS70-05T-7-F is rated for –55 °C to +125 °C operating range and widely used in non-safety-critical automotive subsystems.
How is polarity identified on the SOT523 package?
Polarity is marked by a small dot adjacent to Pin 1 (Anode) on the top surface of the SOT523 package. The cathode (Pin 2) connects to the side opposite the dot. This matches Diodes' standard SOT523 orientation shown in DS30261 Rev. 12–2 Figure on page 2.
Can BAS70-05T-7-F replace BAS70-04T-7-F or BAS70-06T-7-F in circuit design?
Yes - all three share identical SOT523 package, thermal specs, and switching performance. Differences are limited to reverse voltage rating: BAS70-04T-7-F is 40 V, BAS70-05T-7-F is 70 V, BAS70-06T-7-F is 100 V. Substituting upward (e.g., 04T → 05T) is safe; downward requires verification of system voltage margin.
BAS70-05T-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- 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):
- 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-523
BAS70-05T-7-F FAQ
1.How can I place an order for BAS70-05T-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70-05T-7-F 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 BAS70-05T-7-F reliable?
The price and inventory of BAS70-05T-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70-05T-7-F is usually 5 days.
3.What payment methods are accepted for BAS70-05T-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70-05T-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70-05T-7-F?
BAS70-05T-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70-05T-7-F 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 BAS70-05T-7-F?
For technical support, including BAS70-05T-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70-05T-7-F requirements.
6.How does Aetrix verify that BAS70-05T-7-F is sourced from the original manufacturer or authorized distributors?
All BAS70-05T-7-F 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 BAS70-05T-7-F meets industry standards.
7.What is the process for return or replacement of BAS70-05T-7-F?
All BAS70-05T-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAS70-05T-7-F, 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 BAS70-05T-7-F part is unused and in its original packaging.
Return procedure for BAS70-05T-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70-05T-7-F Tags
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