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Recent content by AzharElectronics

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    Off the Shelf Current Source for 0-40mA Requirement

    Hi All, I need to Test Sensor Signal Conditioning Circuit for same I need a Current source from 0-40mA, In order to claim Functional Tests I need a off the shelf current source so that the calibration and accuracy is marinated from that off the shelf current source. Any thing which is around...
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    Impact on EMI/ EMC Qual Tests due to increase in data rate from 1 to 100MBPS for Digital Isolator

    TI's Digital Isolator P/N# ISO7221AQDRQ1 has 1 MBPS Data rate and P/N# ISO7721QDRQ1 has 100MBPS Data rate, as the data rate is high for P/N# ISO7721QDRQ1 what will be its impact for Automotive Grade EMC STD Qualification Testing keeping same PCB layout over earlier P/N# ISO7221AQDRQ1.
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    Leakage current issue for 555 Timer IC with PCB Traces

    Hi L Hi Klaus, The Boards are in Production so no or very little scope for proposing new change, your thoughts on variation in output due to PCB, Solder Flux and Conformal coating. Thanks.
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    Leakage current issue for 555 Timer IC with PCB Traces

    Yes Supply to IC is 5v DC. As customer requirement was 60 Seconds Pulse and reducing R would have increased C so an optimum value was used for R and C. Also PCB size contains so had to use smaller package of Capacitor.
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    Leakage current issue for 555 Timer IC with PCB Traces

    I am using KEMET make Ceramic Capacitor P/N# C1206C106J8RACTU (CAP CER 10UF 10V X7R 1206) connected to discharge Pin of SE555 Timer IC . The RC combination is to get 60Sec Output from SE55 are RA=2.7MΩ RB=2.7MΩ and C=10uF. With use of first batch of prototyping PCB boards I get SE555 Timer IC...
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    In Circuit Tester-Standards,Guidelines,Literature or Recommendation

    Hi, I am building one In-Circuit PCB Tester and for same I am was planning to add some electrical safety components like Power Entry Module with Filter and Fuse, MCB, E-Stop S/W, Start S/W, Safety Relay, Safety Door Switch, Contractor and Fuse. I need help to understand if there are any...
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    Push button or Rocker Switch which will reset it state after power recycle

    I am looking for Push button or Rocker Switch which will reset it state after Power Turn OFF and then ON. +5V DC is the operating Voltage or else if i get know the manufacturer name I will search further. Illuminated type will help.
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    Waterproof Ultrasonic range Sensor

    Hi, I am currently using P/N# HC-SR04 Ultrasonic Sensor, which is not waterproof, so I am looking for equivalent waterproof Sensor. Please let me know if any.
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    Will I be able to drive LED with attached analog circuit ?

    Hi, I have Aerospace customer released analog circuit as attached with output voltage of 3.5V max and output current max 3.5mA. Will this drive customer LED placed at 65inch away from this analog circuit unit? My worry is with LED's Forward Voltage and Forward Current. Any things that can be...
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    Panel Mount NVIS LED Vendors name for Aerospace Application

    Hi, Can you please guide me with names of best Panel Mount NVIS LED Vendors name for Aerospace Application ? Right now I am using Oxley's LED https://www.oxleygroup.com/components/lamp-products but I am finding some issues with its size. ANy other manufacturers name will help.
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    Need suggestion or recommendation for Constant Current Source Circuit or IC

    I have four Set of requirement to drive four different LEDs i:e one to four LEDs needs fix current values from 0.65mA, 2.55mA, 19mA and 24mA. Should be Mil qualified Part. Supply to LED is +5V and Discrete Enable Signal to Turn on the LEDs is +28V (Which I will be processing to +5V, internal to...
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    Need suggestion on TVS Diodes DO-160 Lightning Protection

    Need suggestion on TVS Diodes selection for DO-160 Lightning Protection per Waveform 5A Level 3 i:e 300/1000 (VL/IT). Per my calculation for worst case I will need about 100KW Power Dissipation and Clamping Voltage of 80V. Any Series combinations of TVS can be worked out and timing requirement...
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    Need suggestion or recommendation for Constant Current Source Circuit or IC

    For one of my Aerospace Application I need suggestion or recommendation for Constant Current Source Circuit to Drive LED, recommendation may include what type of circuit can be used either Analog Discrete component or any specific off the shelf IC. My Current requirement is 0.55mA to 25mA and I...
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    Darlington Array IC with Enable Pin

    Hi, Thank You for the information, got confused with Cutoff word. Any answer to my second question i:e "solution to get rid of leakage current ? (Any additional analog circuit to be added or ULN IC itself has some feature, else any other solution)
  15. A

    Darlington Array IC with Enable Pin

    As Suggested by FvM I am using additional Logic AND gates (CD4081B) for Day and Night Mode Selection. Also I am using ULN2003AI https://www.ti.com/product/ULN2003AI/technicaldocuments. what is current that will flow in off State of ULN2003AI ? (As data sheet does not specify off state leakage...
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