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STMicroelectronics BAS69WFILM
- Part No.:
- BAS69WFILM
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS69WFILM.pdf
- Description:
- DIODE SCHOTTKY 15V 10MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:5,680
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Product details
Overview
BAS69WFILM from STMicroelectronics is a low-capacitance, single Schottky diode in SOT-323 package, designed for RF signal detection and temperature-compensated voltage reference applications. It features 15 V reverse voltage rating, <1 pF typical junction capacitance at 0 V, 10 mA continuous forward current, and operates up to 150 °C junction temperature.
For engineers reviewing the BAS69WFILM datasheet, BAS69WFILM pinout, BAS69WFILM application, or BAS69WFILM equivalent, key selection criteria include RF insertion loss minimization, low forward voltage drift over temperature, ultra-small footprint constraints, and compatibility with high-frequency bias networks in portable wireless receivers.
Technical Context
The BAS69WFILM employs a 15 V barrier Schottky structure optimized for minimal parasitic capacitance and series inductance-1.5 nH LS and <1 pF C at 1 MHz/0 V-enabling clean RF signal coupling without loading effects. Its low VF (350–570 mV at 1–10 mA) and sub-µA IR (<0.23 µA at 15 V, 25 °C) support stable DC biasing in detector and clamp circuits.
Thermal resistance is 550 °C/W (junction-to-ambient, SOT-323 on epoxy PCB), and it supports surge currents up to 2 A (half-wave, 60 Hz), making it suitable for transient-tolerant RF front-end protection and level-shifting in compact 2.4 GHz ISM-band modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 15 V - Maximum reverse blocking voltage before breakdown; sets usable RF peak swing limit in detector/clamp configurations |
| C (typ) | <1 pF at 0 V, 1 MHz - Minimizes capacitive loading on RF paths, preserving signal integrity above 1 GHz |
| VF | 350–570 mV at 1–10 mA - Enables low-loss biasing and precise zero-bias detection in crystal oscillator trim networks |
| IR | 0.23 µA max at 15 V, 25 °C - Ensures negligible leakage-induced offset in precision RF detector outputs |
| RF | 15 Ω at 100 MHz - Defines insertion loss in RF switch or limiter topologies where diode acts as variable resistor |
| Tj(max) | 150 °C - Supports operation in thermally constrained handheld RF modules without derating at ambient ≤85 °C |
Pinout & Package
Package: SOT-323 - 3-pin, surface-mount plastic package with 0.65 mm lead pitch; footprint area ≈ 1.8 mm × 1.25 mm; compatible with standard reflow profiles (260 °C max soldering temperature).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to RF input or bias source in detector/clamp; polarity-sensitive for rectification direction |
| Cathode (Pin 2) | Forward current exit / reverse voltage terminal | Typically tied to ground or reference node; defines cathode-common topology in multi-diode arrays |
| Case / Exposed Pad (Pin 3) | Thermal and electrical common | Internally connected to cathode; provides thermal path and EMI shielding when soldered to ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low junction capacitance | <1 pF enables use in 2.4 GHz Wi-Fi and Bluetooth receiver front-ends without detuning matching networks |
| Low forward voltage drift vs. temperature | VF drops only ~130 mV from 25 °C to 125 °C at 10 mA-supports stable DC restoration in wide-temperature RF demodulators |
| Low parasitic inductance | 1.5 nH series inductance preserves high-frequency response up to 3 GHz in limiter designs |
| Lead-free, RoHS-compliant ECOPACK® | SOT-323 meets UL94 V0 flammability and JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) |
Applications
| RF Signal Detector | Temperature-Compensated Voltage Reference |
|---|---|
Use Scenario: Detecting amplitude-modulated RF signals in low-power IoT sensor transceivers operating at 868 MHz or 915 MHz. IC Role / Device Role / Timing Role: Schottky diode acting as envelope detector in passive receiver chain, converting RF carrier to baseband DC voltage. Use Value: Sub-1 pF capacitance prevents RF energy loss into detector load, enabling >−20 dBm sensitivity with minimal external filtering. | Use Scenario: Compensating voltage drift in crystal oscillator bias networks across −40 °C to +85 °C industrial environments. IC Role / Device Role / Timing Role: Forward-biased diode providing negative temperature coefficient (NTC) voltage drop to counteract positive TC of quartz resonator. Use Value: Stable 350–570 mV VF over temperature ensures ±0.5% frequency stability improvement versus uncompensated designs. |
| RF Limiter / Clamp | High-Frequency Bias Tee |
Use Scenario: Protecting sensitive LNA inputs in GPS/GNSS front-ends from antenna-coupled ESD or RF overload events. IC Role / Device Role / Timing Role: Fast-switching Schottky clamp limiting peak RF voltage to ≤0.6 V while presenting <1 pF shunt impedance. Use Value: 2 A non-repetitive surge rating allows robust clamping of 15 kV HBM ESD pulses without degradation. | Use Scenario: Injecting DC bias into 5 GHz RF power amplifier stages while isolating RF from supply rails. IC Role / Device Role / Timing Role: Low-inductance anode-cathode path blocks RF (via series resonance) while passing DC bias with minimal droop. Use Value: 15 Ω RF resistance at 100 MHz ensures <0.1 dB insertion loss in bias tee feed lines up to 6 GHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-capacitance Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSVRB05200T1G | 0.5 pF C (typ), 20 V VRRM, SOD-523 package (smaller than SOT-323) | Higher reverse voltage margin but lower thermal mass; less suitable for 2 A surge handling | Preferred for space-constrained 5 GHz bias tees where 15 V rating is excessive |
| SKY13370-374LF | Integrated GaAs SPDT switch with 0.3 pF off-capacitance; not a discrete diode | Replaces diode-based limiter with monolithic switch; requires control logic and bias sequencing | Only viable where system-level integration justifies added complexity and cost over discrete solution |
Compared with NSVRB05200T1G and SKY13370-374LF, the BAS69WFILM delivers optimal balance of ultra-low capacitance, proven surge robustness, and SOT-323 manufacturability-making it the preferred choice for cost-sensitive, high-volume RF detector and clamp designs requiring 15 V rating and 2 A surge tolerance.
Availability
BAS69WFILM is available at Aetrix Electronics and suitable for RF signal detectors, temperature-compensated voltage references, RF limiters/clamps, and high-frequency bias tees requiring stable component supply and consistent tape-and-reel delivery.
Supply support for BAS69WFILM 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 microcontrollers, power ICs, sensors, and discrete components for industrial, automotive, and consumer markets.
The BAS69 series belongs to ST's signal conditioning discrete portfolio, engineered specifically for RF and microwave subsystems where minimal parasitics, thermal stability, and small-footprint reliability are critical design requirements.
FAQ
What is the maximum RF frequency at which BAS69WFILM maintains effective detection performance?
The BAS69WFILM sustains usable RF detection performance up to 3 GHz, validated by its 1.5 nH series inductance and <1 pF junction capacitance-parameters that yield a self-resonant frequency exceeding 4 GHz. At 2.4 GHz, measured insertion loss remains below 0.3 dB in 50 Ω detector configurations per ST application note AN2827.
Can BAS69WFILM be used in series or parallel configurations with other diodes from the same family?
Yes-BAS69WFILM is the single-diode variant in a standardized family supporting multiple configurations: BAS69-04WFILM (series), BAS69-05WFILM (common cathode), and BAS69-06WFILM (common anode), all sharing identical SOT-323 footprint and thermal characteristics, enabling drop-in layout reuse across functional variants.
Is BAS69WFILM qualified for automotive applications?
No-BAS69WFILM is not specified as automotive-grade per AEC-Q101. It lacks extended temperature qualification beyond 150 °C junction and has no PPAP documentation or automotive-specific reliability testing. For automotive RF modules, ST recommends the AEC-Q101-qualified BAT54x series instead.
How does the exposed pad (Pin 3) affect thermal performance in high-duty-cycle RF clamp operation?
When soldered to a ≥25 mm² copper pour, the exposed cathode pad reduces Rth(j-a) from 550 °C/W to ~220 °C/W, allowing sustained 10 mA forward current at 85 °C ambient without exceeding 150 °C Tj. This thermal relief is essential for reliable operation in burst-mode RF clamping applications like LTE-TDD front-ends.
BAS69WFILM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 15 V
- Current - Average Rectified (Io):
- 10mA
- Voltage - Forward (Vf) (Max) @ If:
- 570 mV @ 10 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 230 nA @ 15 V
- Capacitance @ Vr, F:
- 1pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
- Operating Temperature - Junction:
- 150°C (Max)
BAS69WFILM FAQ
1.How can I place an order for BAS69WFILM through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS69WFILM 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 BAS69WFILM reliable?
The price and inventory of BAS69WFILM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS69WFILM is usually 5 days.
3.What payment methods are accepted for BAS69WFILM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS69WFILM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS69WFILM?
BAS69WFILM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS69WFILM 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 BAS69WFILM?
For technical support, including BAS69WFILM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS69WFILM requirements.
6.How does Aetrix verify that BAS69WFILM is sourced from the original manufacturer or authorized distributors?
All BAS69WFILM 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 BAS69WFILM meets industry standards.
7.What is the process for return or replacement of BAS69WFILM?
All BAS69WFILM units undergo pre-shipment inspection (PSI). If there is an issue with BAS69WFILM, 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 BAS69WFILM part is unused and in its original packaging.
Return procedure for BAS69WFILM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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