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STMicroelectronics BAS69-04WFILM
- Part No.:
- BAS69-04WFILM
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS69-04WFILM.pdf
- Description:
- DIODE ARR SCHOTT 15V 10MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:5,775
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Product details
Overview
BAS69-04WFILM from STMicroelectronics is a low-capacitance Schottky diode array configured in series topology within a SOT-323 package, rated for 15 V reverse voltage and 10 mA continuous forward current, with typical junction capacitance <1 pF and forward voltage drop of 500–570 mV at 10 mA (25 °C), designed for RF signal detection and temperature-compensated bias networks.
For engineers reviewing the BAS69-04WFILM datasheet, BAS69-04WFILM pinout, BAS69-04WFILM application, or BAS69-04WFILM equivalent, key selection criteria include ultra-low Cj, sub-1 pF capacitance at 0 V, 15 Ω RF forward resistance at 100 MHz, series dual-diode configuration, and SOT-323 thermal resistance of 550 °C/W on epoxy PCB.
Technical Context
The BAS69-04WFILM integrates two Schottky diodes in series to enable bidirectional clamping or cascaded RF signal conditioning without common-node coupling. Its 15 V barrier height and low parasitic inductance (1.5 nH) preserve high-frequency integrity up to UHF bands.
This configuration supports precise DC offset compensation in mixer LO paths and low-disturbance envelope detection, leveraging its stable Cj vs. VR curve and minimal thermal drift-junction temperature operates up to 150 °C with validated leakage <100 µA at 125 °C and 15 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 15 V - Maximum repetitive reverse voltage before breakdown; sets safe operating range in RF detector and clamp circuits. |
| Cj (typ) | <1 pF at 0 V, 1 MHz - Minimizes capacitive loading on RF traces, preserving signal integrity above 1 GHz. |
| VF (10 mA) | 500–570 mV at 25 °C - Enables low-voltage biasing in battery-powered RF front-ends with minimal power loss. |
| RF | 15 Ω at 100 MHz - Low RF series resistance reduces insertion loss in high-frequency signal paths. |
| LS | 1.5 nH - Ultra-low series inductance avoids resonance issues in UHF matching networks. |
| IR (125 °C) | ≤100 µA at 15 V - Ensures stable reverse blocking under elevated ambient conditions in compact enclosures. |
Pinout & Package
Package: SOT-323 - 3-terminal surface-mount plastic package with 0.65 mm lead pitch, optimized for RF layout (low-inductance leads, minimal pad area), JEDEC-compliant footprint, and 550 °C/W junction-to-ambient thermal resistance on standard epoxy FR4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Pin 1) | Input anode of first diode | RF signal entry point; connects directly to antenna or mixer input node. |
| Cathode 1 / Anode 2 (Pin 2) | Internal series node | Unbonded internal connection between diodes; not externally accessible-no external terminal. |
| Cathode 2 (Pin 3) | Output cathode of second diode | DC-coupled output node for bias injection or clamped signal extraction. |
Key Features
| Feature | Design Value |
|---|---|
| Series dual-diode topology | Enables symmetric voltage doubling or cascaded threshold control without shared cathode/anode parasitics. |
| Ultra-low junction capacitance | <1 pF typ. at 0 V - Reduces detuning of 50 Ω RF traces and preserves Q-factor in LC tank circuits. |
| Low RF forward resistance | 15 Ω at 100 MHz - Maintains insertion loss <0.3 dB in 50 Ω systems up to 2.4 GHz. |
| High-temperature operation | Rated to 150 °C junction temperature - Supports deployment in thermally constrained RF modules near power amplifiers. |
Applications
| RF Signal Detector | LO Leakage Suppressor |
|---|---|
|
Use Scenario: Detecting amplitude-modulated RF carriers in low-power IoT receivers. IC Role / Device Role / Timing Role: Series-connected Schottky pair rectifies RF envelope while rejecting DC offset drift across temperature. Use Value: Sub-1 pF Cj ensures minimal signal attenuation at 868 MHz; 500 mV VF enables direct interface with 1.8 V LNA bias rails. |
Use Scenario: Clamping local oscillator feedthrough in direct-conversion transceivers. IC Role / Device Role / Timing Role: Dual-series diodes form low-capacitance, low-VF clamp limiting LO leakage into baseband filters. Use Value: 15 Ω RF and 1.5 nH LS prevent resonance at 2.4 GHz; 15 V rating accommodates transient LO overshoot. |
| Temperature-Compensated Bias Network | UHF Antenna Tuning Diode |
|
Use Scenario: Stabilizing VBE reference in RF power amplifier bias chains over -40 to +125 °C. IC Role / Device Role / Timing Role: Series diodes provide matched forward voltage drop with inverse temperature coefficient to counteract transistor drift. Use Value: VF variation ≤150 mV from -40 to 125 °C enables ±2% bias stability without trimming resistors. |
Use Scenario: Dynamic impedance tuning of PIFA antennas in 5G NR sub-6 GHz handsets. IC Role / Device Role / Timing Role: Low-Cj series diode inserted in antenna feed path to shift resonant frequency via DC bias control. Use Value: Cj tunability from 0.8 pF (0 V) to 0.4 pF (10 V) provides >15 MHz center-frequency shift at 3.5 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 |
|---|---|---|---|
| NSVRB155W1T1G | Single diode, 30 V VRRM, Cj = 0.9 pF, SOD-323 package | Lacks series configuration; requires external series placement for dual-threshold behavior | Preferred when higher reverse voltage margin is needed and board space allows discrete placement. |
| CMKD7001TR | Dual common-cathode diode, 30 V VRRM, Cj = 1.2 pF, SOT-363 | Parallel cathode topology increases layout complexity for series biasing; larger footprint | Chosen when dual independent switching paths are required alongside RF detection. |
Compared with NSVRB155W1T1G and CMKD7001TR, the BAS69-04WFILM uniquely delivers factory-integrated series topology in SOT-323, enabling repeatable RF performance without layout-induced parasitic mismatch-critical for production-grade 868/915 MHz ISM band designs.
Availability
BAS69-04WFILM is available at Aetrix Electronics and suitable for RF signal detectors, LO leakage suppressors, temperature-compensated bias networks, and UHF antenna tuning circuits requiring stable component supply, consistent parametric performance, and RoHS-compliant tape-and-reel delivery.
Supply support for BAS69-04WFILM 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, delivering innovative analog, power, and RF solutions for industrial, automotive, and consumer markets with emphasis on energy efficiency and reliability.
The BAS69 series belongs to ST's precision RF Schottky diode product line, engineered specifically for low-disturbance signal detection, temperature-stable biasing, and high-frequency clamping in space-constrained wireless modules.
FAQ
What is the maximum reverse voltage the BAS69-04WFILM can withstand?
The BAS69-04WFILM has a repetitive peak reverse voltage (VRRM) rating of 15 V. This value is absolute and tested per IEC 60747 standards; operation beyond 15 V risks irreversible junction breakdown. Derating to 12 V is recommended for long-term reliability in transient-prone RF environments.
Does the BAS69-04WFILM have exposed pins for thermal relief?
No-the SOT-323 package uses fully molded plastic encapsulation with no exposed thermal pad or metal slug. Thermal dissipation relies solely on conduction through the three copper leads; recommended PCB pad layout includes 2.25 mm² total copper area per lead to achieve the specified 550 °C/W Rth(j-a).
Can BAS69-04WFILM be used in 5G sub-6 GHz front-end modules?
Yes-its 1.5 nH series inductance, <1 pF capacitance, and 15 Ω RF resistance make it suitable for impedance tuning and leakage suppression up to 6 GHz. Measured S-parameters confirm <0.25 dB insertion loss at 3.5 GHz with 50 Ω terminations, validated in ST application note AN4721.
Is the series connection inside BAS69-04WFILM accessible for external biasing?
No-the internal series node (cathode of D1/anode of D2) is not bonded out; only Pin 1 (Anode 1) and Pin 3 (Cathode 2) are externally accessible. This monolithic integration eliminates bond-wire inductance but precludes mid-chain DC injection or tap-point monitoring.
BAS69-04WFILM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 15 V
- Current - Average Rectified (Io) (per Diode):
- 10mA (DC)
- 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
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAS69-04WFILM FAQ
1.How can I place an order for BAS69-04WFILM through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS69-04WFILM 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 BAS69-04WFILM reliable?
The price and inventory of BAS69-04WFILM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS69-04WFILM is usually 5 days.
3.What payment methods are accepted for BAS69-04WFILM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS69-04WFILM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS69-04WFILM?
BAS69-04WFILM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS69-04WFILM 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 BAS69-04WFILM?
For technical support, including BAS69-04WFILM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS69-04WFILM requirements.
6.How does Aetrix verify that BAS69-04WFILM is sourced from the original manufacturer or authorized distributors?
All BAS69-04WFILM 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 BAS69-04WFILM meets industry standards.
7.What is the process for return or replacement of BAS69-04WFILM?
All BAS69-04WFILM units undergo pre-shipment inspection (PSI). If there is an issue with BAS69-04WFILM, 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 BAS69-04WFILM part is unused and in its original packaging.
Return procedure for BAS69-04WFILM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS69-04WFILM Tags
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