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Diodes Incorporated BAS70W-05Q-7-F
- Part No.:
- BAS70W-05Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS70W-05Q-7-F.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:5,983
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Product details
Overview
BAS70W-05Q-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT323 package, rated for 70 V peak repetitive reverse voltage, 70 mA forward current, and 0.41 V max forward voltage at 1 mA. It delivers fast 5.0 ns reverse recovery time and ultra-low 100 nA reverse leakage at 50 V, enabling efficient freewheeling and reverse polarity protection in space-constrained DC-DC converters.
For engineers reviewing the BAS70W-05Q-7-F datasheet, BAS70W-05Q-7-F pinout, BAS70W-05Q-7-F application, or BAS70W-05Q-7-F equivalent, key selection criteria include low VF for reduced conduction loss, AEC-Q101 qualification for automotive-grade reliability, SOT323 footprint compatibility, and sub-2 pF junction capacitance for high-frequency switching integrity.
Technical Context
This Schottky diode uses a platinum-silicide (PtSi) barrier structure to achieve low forward voltage drop and fast switching without minority-carrier storage delay. Its PN junction guard ring enhances ESD robustness (HBM >8 kV) and transient immunity while maintaining tight leakage control.
The device operates across –55°C to +125°C ambient, with thermal resistance of 625°C/W (Junction-to-Ambient on FR-4), and derates linearly above 25°C per Fig. 4. Total capacitance remains ≤2.0 pF at 0 V bias and drops with increasing reverse voltage, supporting stable operation in RF-coupled or high-dV/dt gate-drive snubber circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 70 V - Withstands up to 70 V repetitive reverse voltage without breakdown, suitable for 48 V bus clamp and 24 V SMPS output rectification. |
| VF (max) | 0.41 V @ 1 mA - Minimizes conduction loss in low-current bias and sensing paths; enables <10 mW dissipation at 25 mA. |
| tRR | 5.0 ns - Enables clean commutation in >1 MHz DC-DC topologies without tail current or ringing. |
| IR (max) | 100 nA @ VR = 50 V - Ensures negligible leakage in battery backup and always-on monitoring circuits. |
| CT | 2.0 pF @ VR = 0 V - Limits capacitive coupling in high-speed signal path clamping and RF detector applications. |
| PD | 200 mW - Supports continuous operation at 70 mA with <0.5 V drop on standard FR-4 layout (Note 6). |
| TJ Range | –55°C to +125°C - Validated for under-hood automotive modules and industrial power supplies with wide ambient swings. |
Pinout & Package
Package: SOT323 - ultra-small plastic surface-mount case (2.15 mm × 2.10 mm × 0.95 mm), lead-free matte tin plating, moisture sensitivity level 1, weight ≈0.006 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node (e.g., switch node in buck converter); must be routed with minimal inductance for fast turn-on. |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Typically tied to ground or lower-potential rail; serves as reference for reverse polarity protection and freewheeling return path. |
| Collector / Heat Sink (Pin 3) | Exposed pad / thermal slug | Not electrically connected; provides mechanical anchoring and thermal conduction to PCB copper pour for improved power handling. |
Key Features
| Feature | Design Value |
|---|---|
| Low turn-on voltage | 0.41 V max at 1 mA enables >95% efficiency in 3.3 V/5 V auxiliary rails where diode drop dominates loss budget. |
| Fast switching | 5.0 ns tRR eliminates need for external snubbers in 500 kHz–2 MHz synchronous rectifier designs. |
| PN junction guard ring | Provides >8 kV HBM ESD rating and withstands 100 V/µs transients per AEC-Q101 stress test protocols. |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics requiring zero defect rates over 15-year service life. |
| Green, halogen-free construction | Meets JEDEC J-STD-020D Level 1 and RoHS 2 (2011/65/EU) with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb. |
Applications
| SMPS Output Rectification | Reverse Polarity Protection |
|---|---|
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 3.3 V/5 V at ≤100 mA. IC Role / Device Role / Timing Role: Unidirectional current path with minimal forward drop; replaces larger Schottkys to reduce board area by 60%. Use Value: 0.41 V VF cuts conduction loss by 35% vs. standard silicon diodes, improving light-load efficiency by 2–3 percentage points. | Use Scenario: Input protection for USB-C PD adapters and portable medical chargers exposed to accidental reverse connection. IC Role / Device Role / Timing Role: Series-blocking element placed before LDO or DC-DC input; conducts only during correct polarity. Use Value: 100 nA IR ensures <1 µW standby drain, preserving battery charge over months of storage. |
| Freewheeling Diode | Blocking Diode in Sensor Bias |
Use Scenario: Inductor current recirculation path in automotive LED driver ICs driving 12 V loads. IC Role / Device Role / Timing Role: Provides low-impedance return path during MOSFET off-time; handles 70 mA peak current with <5 ns recovery. Use Value: 5.0 ns tRR prevents cross-conduction in high-frequency PWM dimming (≥20 kHz), eliminating audible noise and EMI spikes. | Use Scenario: Isolating dual-supply sensor interfaces (e.g., RS-485 transceivers) from shared 3.3 V bias rails. IC Role / Device Role / Timing Role: Prevents backfeed between isolated domains while adding <2 pF parasitic capacitance. Use Value: 2.0 pF CT avoids signal integrity degradation in 10 Mbps differential data lines, maintaining >30 dB common-mode rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54LT1G | Higher VF (0.45 V @ 10 mA), same SOT-23 package, no AEC-Q101 qualification | Acceptable for commercial-grade DC-DC but not automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and leakage is non-critical |
| NSR0230P2T5G | Lower IF rating (200 mA), 0.35 V VF, SOD-523 package (smaller than SOT323), no guard ring | Better for ultra-low VF in wearables; lacks ESD robustness for industrial environments | Choose for space-constrained consumer devices where 8 kV HBM is unnecessary |
Compared with SBAT54LT1G and NSR0230P2T5G, BAS70W-05Q-7-F uniquely balances AEC-Q101 reliability, 70 V blocking, and 100 nA leakage-making it optimal for automotive body controllers and industrial PMICs where long-term stability under thermal cycling is mandatory.
Availability
BAS70W-05Q-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC-DC converters, and portable medical device power management requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for BAS70W-05Q-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 the Americas.
The BAS70WQ series belongs to Diodes' AEC-Q101-qualified Schottky diode product line, engineered specifically for automotive infotainment, ADAS power supplies, and industrial SMPS where low VF, fast recovery, and high-reliability packaging are essential.
FAQ
What is the maximum allowable junction temperature for BAS70W-05Q-7-F?
The device is rated for a junction temperature range of –55°C to +125°C. Its absolute maximum TJ is 125°C under steady-state conditions; exceeding this risks parametric shift and accelerated failure. Derating begins at 25°C ambient, with linear reduction to zero power at 150°C case temperature per Fig. 4.
Is BAS70W-05Q-7-F compatible with lead-free reflow soldering profiles?
Yes. The device uses matte tin-plated terminals qualified to IPC/JEDEC J-STD-020D Level 1 moisture sensitivity and supports peak reflow temperatures up to 260°C for ≤60 seconds. Its green molding compound meets UL 94V-0 flammability requirements and withstands standard Pb-free thermal cycles without delamination.
How does the PN junction guard ring improve system-level robustness?
The integrated guard ring suppresses edge breakdown during voltage transients and increases ESD withstand capability to >8 kV HBM. In automotive load-dump tests (ISO 7637-2 Pulse 5a), it prevents latch-up and maintains reverse blocking integrity up to 100 V/µs dV/dt, reducing need for external TVS components.
Can BAS70W-05Q-7-F replace BAS70W-04Q or BAS70W-06Q in existing designs?
Yes-mechanically and electrically interchangeable within the BAS70WQ family. All variants share identical SOT323 package, thermal specs, and AEC-Q101 qualification. Differences are limited to forward voltage bins: -04Q (≤0.37 V), -05Q (≤0.41 V), -06Q (≤0.45 V). Substitution requires verification that the VF change stays within system voltage margin.
BAS70W-05Q-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- 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
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAS70W-05Q-7-F FAQ
1.How can I place an order for BAS70W-05Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70W-05Q-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 BAS70W-05Q-7-F reliable?
The price and inventory of BAS70W-05Q-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 BAS70W-05Q-7-F is usually 5 days.
3.What payment methods are accepted for BAS70W-05Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70W-05Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70W-05Q-7-F?
BAS70W-05Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70W-05Q-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 BAS70W-05Q-7-F?
For technical support, including BAS70W-05Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70W-05Q-7-F requirements.
6.How does Aetrix verify that BAS70W-05Q-7-F is sourced from the original manufacturer or authorized distributors?
All BAS70W-05Q-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 BAS70W-05Q-7-F meets industry standards.
7.What is the process for return or replacement of BAS70W-05Q-7-F?
All BAS70W-05Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAS70W-05Q-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 BAS70W-05Q-7-F part is unused and in its original packaging.
Return procedure for BAS70W-05Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70W-05Q-7-F Tags
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