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STMicroelectronics BAS70-08SFILM
- Part No.:
- BAS70-08SFILM
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAS70-08SFILM.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:4,305
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Product details
Overview
BAS70-08SFILM from STMicroelectronics is a surface-mount Schottky diode array containing three parallel-connected 70 V, 70 mA low-capacitance diodes in an SOT-323-6L package. It delivers 2 pF capacitance, 30 Ω differential forward resistance at 100 MHz, and 1.5 nH series inductance-optimized for RF signal detection and temperature compensation circuits requiring minimal parasitic loading.
For engineers reviewing the BAS70-08SFILM datasheet, BAS70-08SFILM pinout, BAS70-08SFILM application, or BAS70-08SFILM equivalent, this device is selected for high-frequency detector stages, RF front-end bias networks, and precision temperature-compensated oscillator references where low Cj, fast recovery, and matched parallel conduction are critical.
Technical Context
The BAS70-08SFILM integrates three identical Schottky barrier diodes in parallel within a single 6-pin SOT-323-6L leadframe, sharing common anode and cathode terminals per pair while maintaining independent thermal paths. Its 70 V reverse voltage rating and 150 °C maximum junction temperature support operation in compact RF modules exposed to ambient thermal cycling.
Designed for signal integrity preservation, it achieves 2 pF capacitance at 0 V reverse bias and 1.5 nH internal series inductance-enabling stable impedance matching up to 1 GHz. The 30 Ω differential forward resistance at 100 MHz ensures minimal insertion loss in detector and mixer bias legs without requiring external decoupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 70 V - supports RF detector operation with 50 V DC bias headroom before breakdown |
| IF (continuous) | 70 mA - enables sustained current handling across all three parallel diodes without derating |
| C (max) | 2 pF at 0 V, 1 MHz - minimizes capacitive loading on 50 Ω RF traces and resonant tank circuits |
| RF | 30 Ω at 100 MHz - reduces signal attenuation in high-frequency bias injection paths |
| LS | 1.5 nH - limits self-resonance frequency shift and maintains broadband impedance stability |
| Tj (max) | 150 °C - allows deployment in thermally constrained RF power amplifier modules |
| IR @ 70 V | 10 µA at 25 °C - ensures low leakage in precision reference and sensing nodes |
Pinout & Package
The BAS70-08SFILM is housed in a 6-pin SOT-323-6L package with exposed thermal pad, measuring 1.8–2.2 mm × 1.15–1.35 mm × 1.8–2.4 mm (L×W×H), compliant with JEDEC MO-203AB and RoHS/ECOPACK®2 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Independent anode connection enabling discrete bias control or redundancy routing |
| Pin 2 | Cathode of Diode 1 | Common cathode node shared with Pins 4 and 6 for parallel conduction path |
| Pin 3 | Anode of Diode 2 | Second independent anode for balanced current splitting or dual-path detection |
| Pin 4 | Cathode of Diode 2 | Shared cathode terminal-electrically tied to Pin 2 and Pin 6 for 3× parallel conduction |
| Pin 5 | Anode of Diode 3 | Third anode input supporting triple-redundant or high-current RF detector configurations |
| Pin 6 | Cathode of Diode 3 | Final shared cathode node completing the three-diode parallel structure |
Key Features
| Feature | Design Value |
|---|---|
| Three parallel Schottky diodes | Enables 3× current capacity (210 mA total) while preserving 2 pF capacitance and 1.5 nH inductance |
| Low differential forward resistance | 30 Ω at 100 MHz ensures <0.2 dB insertion loss in 50 Ω RF detector bias lines |
| Matched junction characteristics | Guarantees uniform forward voltage (410–1000 mV across 1–15 mA) across all three diodes for balanced conduction |
| Thermally enhanced SOT-323-6L | Exposed pad and optimized copper layout reduce Rth(j-a) to 550 °C/W on standard FR4 PCBs |
| ECOPACK®2 compliance | Lead-free, halogen-free construction meets IPC/JEDEC J-STD-020D reflow profiles up to 260 °C |
Applications
| RF Detector Stage | Temperature-Compensated Oscillator |
|---|---|
|
Use Scenario: Demodulating AM/FM signals in 800 MHz–2.4 GHz ISM band receivers using envelope detection. IC Role / Device Role / Timing Role: Signal rectifier converting RF carrier amplitude into baseband voltage proportional to input power. Use Value: 2 pF capacitance prevents detuning of LC tank inputs; 1.5 nH inductance avoids resonance shifts above 1 GHz. |
Use Scenario: Compensating varactor diode drift in VCOs used in Bluetooth LE transceivers. IC Role / Device Role / Timing Role: Temperature-sensing element providing forward-voltage-derived thermal feedback to bias circuitry. Use Value: Matched VF tracking across three diodes improves compensation linearity over –40 to +125 °C range. |
| RF Front-End Bias Network | High-Speed Switching Clamp |
|
Use Scenario: Providing DC bias to GaAs FET amplifiers in cellular infrastructure small cells. IC Role / Device Role / Timing Role: Low-loss DC feed-through path isolating RF signal path from supply rail noise. Use Value: 30 Ω RF at 100 MHz limits bias injection loss to <0.3 dB; parallel structure handles 210 mA peak current. |
Use Scenario: Protecting ADC input pins from ESD transients in portable medical ultrasound front-ends. IC Role / Device Role / Timing Role: Fast-turn-on clamp diverting >8 kV HBM spikes away from sensitive analog inputs. Use Value: 10 µA reverse leakage at 70 V ensures no DC offset error; sub-nanosecond recovery prevents signal distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSR0230HT1G | Single 30 V, 200 mA Schottky in SOD-323; no parallel configuration; 12 pF capacitance | Lower voltage rating limits use to ≤3.3 V bias rails; higher C degrades >500 MHz performance | Select only for low-voltage, non-RF biasing where capacitance is not critical |
| RB050M-30 | Single 30 V, 500 mA Schottky in SOD-123; 35 pF capacitance; 10x higher C than BAS70-08SFILM | Unsuitable for RF detection due to excessive capacitive loading; better for power rectification | Use only in DC/DC converter output stages-not RF signal paths |
Compared with NSR0230HT1G and RB050M-30, BAS70-08SFILM uniquely combines 70 V rating, 2 pF capacitance, and triple-parallel architecture-making it irreplaceable in multi-path RF detector and precision temperature compensation designs where parasitic minimization and current scalability are jointly required.
Availability
BAS70-08SFILM is available at Aetrix Electronics and suitable for RF detector modules, temperature-compensated oscillators, high-speed clamping circuits, and cellular infrastructure bias networks requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BAS70-08SFILM 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and communications markets.
The BAS70 series belongs to ST's precision RF diode product line, engineered specifically for signal integrity preservation in high-frequency detection, mixing, and temperature compensation applications-prioritizing ultra-low capacitance, matched dynamic parameters, and thermal robustness.
FAQ
What is the maximum continuous forward current per diode in BAS70-08SFILM?
Each of the three parallel diodes is rated for 70 mA continuous forward current (IF) at Tj = 25 °C. The total device can sustain 210 mA when all diodes conduct equally, but thermal derating applies above 25 °C ambient per the Rth(j-a) = 550 °C/W specification on standard FR4 PCBs.
Does BAS70-08SFILM support reflow soldering per JEDEC J-STD-020?
Yes-BAS70-08SFILM is qualified for lead-free reflow per JEDEC J-STD-020D, with a maximum peak temperature of 260 °C for 30 seconds. Its ECOPACK®2-compliant packaging ensures reliable intermetallic formation and void-free solder joints under standard profile ramp-soak-reflow conditions.
How is the 3-diode parallel configuration electrically accessed?
The SOT-323-6L package provides six terminals: Pins 1, 3, and 5 serve as independent anodes; Pins 2, 4, and 6 are internally shorted to form a common cathode node. This allows either simultaneous conduction (all anodes biased together) or independent control (e.g., phased biasing in multi-channel detectors).
Can BAS70-08SFILM replace BAS70-05WFILM in a common-cathode design?
No-BAS70-05WFILM is a dual-diode common-cathode device in SOT-323 (3-pin), whereas BAS70-08SFILM is a triple-diode parallel array in SOT-323-6L (6-pin) with separate anode access. Pin count, terminal mapping, and internal topology differ fundamentally; direct substitution would require PCB redesign and layout validation.
BAS70-08SFILM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 70 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323-6L
BAS70-08SFILM FAQ
1.How can I place an order for BAS70-08SFILM through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70-08SFILM 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 BAS70-08SFILM reliable?
The price and inventory of BAS70-08SFILM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70-08SFILM is usually 5 days.
3.What payment methods are accepted for BAS70-08SFILM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70-08SFILM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70-08SFILM?
BAS70-08SFILM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70-08SFILM 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 BAS70-08SFILM?
For technical support, including BAS70-08SFILM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70-08SFILM requirements.
6.How does Aetrix verify that BAS70-08SFILM is sourced from the original manufacturer or authorized distributors?
All BAS70-08SFILM 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 BAS70-08SFILM meets industry standards.
7.What is the process for return or replacement of BAS70-08SFILM?
All BAS70-08SFILM units undergo pre-shipment inspection (PSI). If there is an issue with BAS70-08SFILM, 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 BAS70-08SFILM part is unused and in its original packaging.
Return procedure for BAS70-08SFILM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70-08SFILM Tags
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