Article Archive

Kaluma - run JavaScript on the RP2040

Once intended as an animation tool for web browsers, JavaScript has had a fantastic career. Thanks to the browser wars, runtime performance improved consistently. As of now, JavaScript can be run on m...Read More
Oct 23, 2023

X7R vs. X7S DC-bias & TCC considerations

The most common MLCCs (multi-layer ceramic capacitors) in the industrial and automotive markets come with a TCC (temperature co-efficient of capacitance) known widely as X7R, where the ‘X’...Read More
Oct 19, 2023

The Essential Guide to AC-DC Power Adapters

AC-DC power adapters are ubiquitous in our modern lives. We use them to power our laptops, smartphones, tablets, and other electronic devices. But what exactly is an AC/DC power adapter and how does i...Read More
Oct 10, 2023

ABX00063 - Arduino Giga R1 Wifi Board

Bucking the trend of miniaturization, Arduino introduces the Giga R1 WiFi, a behemoth of a board based on the Due form factor. With an impressive 76 GPIO pins and substantial compute power, this board...Read More
Jul 28, 2023

Vishay CNY70 – reflective optical sensor

Optoelectronics has become a go-to solution for distance sensing, where a combination of a light-emitting diode (LED) and a transistor can work wonders. The Vishay CNY70 takes center stage by seamless...Read More
Jul 28, 2023

RL822-3R3K-RC: A Classic Barrel Inductor

The RL822-3R3K-RC inductor is a well-known and widely used barrel inductor that was originally introduced by J.W. Miller and continues to be produced seamlessly after its acquisition by Bourns. This c...Read More
Jul 5, 2023

ESP32-H2 – an ESP32 with a non-WiFi radio

The ESP32-H2 marks a significant expansion in Espressif's range of wireless microcontrollers, venturing beyond WiFi capabilities. This versatile module supports both Bluetooth 5 and IEEE 802.15.4 prot...Read More
Jun 6, 2023

The 1N4148WS Small Signal Diode by Multicomp

1N4148WS small signal diode 1N4148WS small signal diode The 1N4148WS is a small signal diode that comes to OEM Secrets courtesy of the development team at Multicomp. Amongst our wide variety of semico...Read More
Dec 6, 2021

The ATXMEGA32A4U-MH by Microchip Technology

ATXMEGA32A4U-MH microchip ATXMEGA32A4U-MH microchip  The ATXMEGA32A4U-MH is an 8-bit AVR microchip that has been developed by Microchip Technology. It has proven to be a very popular and highly e...Read More
Dec 6, 2021

The LM317MBSTT3G Voltage Regulator by onsemi

By reading this article, you can learn all of the crucial information that you should know prior to making a purchase for the LM317MBSTT3G voltage regulator. Note that this item comes courtesy of the ...Read More
Sep 9, 2021

The MBRS360T3G Diode by onsemi

In this article, we will describe everything you should know about the MBRS360T3G diode. This particular electronic part has been manufactured by ON Semiconductor now rebranded as onsemi. And it is av...Read More
Sep 9, 2021

The MC74HC595ADR2G Shift Register by onsemi

In this article, we are going to provide a full explanation of what makes the MC74HC595ADR2G shift register one of the very best products of its kind. It is an electronic part listed here at oemsecret...Read More
Sep 9, 2021

The TPSD107K010R0065 Tantalum Capacitor

Today we are going to explain everything that you should know when it comes to the TPSD107K010R0065 tantalum capacitor. This electronic part is manufactured by AVX Corporation, with its current distri...Read More
Sep 9, 2021

The AQY221R2S Relay from Panasonic

This article will highlight all the primary benefits and the main technical specifications pertaining to the AQY221R2S relay. This is a product that is manufactured by the globally recognised Panasoni...Read More
Sep 1, 2021

102110423 development board by Seeed Studio

The Seeed Studio BeagleBone Black Industrial, known as manufacturer # 102110423, is a development board that is intended for SBCs or Single Board Computers. It is specifically useful to developers, ho...Read More
Jul 6, 2021

EK-K7-KC705-G FPGA by Xilinx

The EK-K7-KC705-G or Kintex-7 FPGA KC705 by Xilinx is an FPGA (Field Programmable Gate Array) evaluation board. Described as a high-performance and versatile base platform, it offers several advantage...Read More
Jul 6, 2021

LL4148 Diode by Vishay Intertechnology

Manufactured by Vishay Intertechnology, the LL4148 is a small/signal fast switching diode that has silicon epitaxial planar coating. It also has a unidirectional single configuration. Applications tha...Read More
Apr 15, 2021

MMBT2222ALT1G Transistor by ON Semiconductor

Manufactured by ON Semiconductor, the MMBT2222ALT1G is an NPN bipolar transistor that allows circuits to manage high levels of voltage. It is specifically intended for switching, as well as for linear...Read More
Apr 15, 2021

ULTIMAKER S5 - 3D Printer by Ultimaker

The Ultimaker S5 is an industrial desktop 3D printer. It is an FDM (fused deposition modeling) 3D printer created by Dutch company Ultimaker, a pioneer and respected authority in the field of 3D print...Read More
Apr 8, 2021

MIC5235YM5-TR - Volt regulator by Microchip

Manufactured by Microchip Technology, the MIC5235YM5-TR is a linear voltage regulator. It is a low dropout regulator with 310mV at 150mA, and wide input voltage range – from 2.3V to 24V. This hi...Read More
Apr 1, 2021

SHT85 Humidity Sensor by Sensirion

The SHT85 humidity sensor is a pin-type device, so it’s easier to change. It can also convert data from analog to digital and is considered the higher-end version of SHT75 (EOL) and SHT71, which...Read More
Mar 23, 2021

E2K-C25ME1 High-Grade Sensors

E2K-C25ME1 is a proximity sensor from Omron. It is used to detect metallic- and non-metallic objects. E2K-C25ME1 is a capacitive, unshielded component that operates at low voltage and offers customiza...Read More
Mar 21, 2021

HC-SR501 PIR Motion Sensor

The HC-SR501 sensor is a highly versatile component often used in automated lighting, security systems, and other devices that are sensitive to motion. Depending on how this is set up, HC-SR501 can op...Read More
Mar 19, 2021

Ultrasonic Distance Sensor (HC-SR04)

HC-SR04 Proximity Sensor HC-SR04 is a low-cost but highly accurate proximity sensor that can be used as a stand-alone unit or as an integration to Arduino. Users can add this to their tech projects, w...Read More
Mar 15, 2021

Panasonic AMG8833 – FLIR for cheap

FLIR made infrared thermal sensors cool – sadly, their parts are all but cheap (and suffer from export control problems). Panasonic’s Grid-EYE family is a low-resolution alternative that c...Read More
Mar 12, 2021

Wuerth 970170151 – Hex Spacing Made Easy

Anyone who ever tore down a HP 8753C’s power supply during repairs has, for sure, marveled at the hex nuts HP used to keep the unit together. Thanks to German engineering powerhouse Wuerth, doin...Read More
Mar 12, 2021

Myrra 44266 - PCB-Mountable Transformers

Even though recent failures of vintage HP test equipment have Joe Boeschert a bad name, history has all but vindicated his decision to become a pioneer of switching regulators. Their success has pushe...Read More
Mar 12, 2021

Vishay's NTCS0805E3222JMT Case Resistor

NTCs and other thermosensors traditionally come in through-hole packages. Vishays NTCS0805E3222JMT is an excellent SMD part which can be placed right next to the heat source or ground plane whose temp...Read More
Mar 12, 2021

Takachi's TWN4-2-6W

A frequently repeated bit of advice by the crew involves looking off the beaten path. When looking for a ready-made case for your electronic trinket du jour, taking a look at the offeri...Read More
Mar 12, 2021

On Semiconductor's LM324DR2G

When the LM324 opamp showed up in our oemsecrets search trends, more than one engineer in our team was shocked - the 324 is one of the most beloved general-purpose operational amplifiers on the market...Read More
Mar 12, 2021

What is Low Pass Filter

When working with electrical parts and electronic signals, it is important to consider both time and frequency domains. The time-domain reflects the voltage value of the signal at a specific time. Whi...Read More
Mar 12, 2021

BMP180 Barometric Pressure Sensor

BMP180 is a next-generation sensor that performs a wide variety of functions, including working as an altimeter. It provides high-precision reading and runs with its proprietary firmware or software f...Read More
Mar 12, 2021

ESP8266 Arduino Wi-Fi Module

The Internet of Things (IoT) is sure to fire up in the coming years. According to Statista, the global market for IoT could hit a whopping $1.6 trillion by 2025 for end-user solutions. Those who like ...Read More
Mar 12, 2021

LoRa SX1278 Module

The LoRa SX1278 module is a high-sensitivity component with long-range spectrum communication capabilities. Its heart is the LoRa tech that uses patented modulation. What Is the LoRa SX1278? The LoRa ...Read More
Mar 12, 2021

LM2653MTC-ADJ from Texas Instruments

Texas Instruments offers engineers a set of switching regulator evergreens which combine high efficiency with simple PCB layouts. The highly efficient LM2653, first introduced in 1999, usually stands ...Read More
Mar 12, 2021

BlueNRG-1 bluetooth without hassle

Designing and impendance matching RF-related circuitry is an art of its own. STMicroelectronics’s SPBTLE-1S combines a Bluetooth 4.2 radio module with a Cortex-M0 processor intended to handle RF...Read More
Mar 12, 2021

Texas Instruments’ OPA333 & OPA2333

TI’s micro-power OPA333x opamp goes where few opamps have gone before No matter how advanced your digital circuitry is: sometimes, you need an OpAmp. Technology improvements allow for low-power ...Read More
Mar 12, 2021

Nordic Semiconductor’s nRF52840-dk

Nordic semiconductor is the king of the wireless hill. Their chips support a variety of protocols used in the internet of things. The recently announced nRF52840 Dongle uses the nRF52840 chip on a USB...Read More
Mar 12, 2021

Laird DA1206C121R-10 Ferrite bead networks

Ferrite beads come in groups – if your circuit needs one, it usually doesn‘t take long until a regulator makes you add another. Laird now provides a resistor array-like solution for the fe...Read More
Mar 12, 2021

NXP PCF2127 – Lord of the Time

Adding real time clock information to microcontroller driven systems is problematic. As time goes by, small errors in computing routines add up. Given that users hate entering system times, a real-tim...Read More
Mar 12, 2021

NXP’s MMA8451QR1

Process computer designs usually start out with an accelerometer. As reliability problems creep in, making the switch to a more “professional” solution is beneficial. Accelerometers are ba...Read More
Mar 12, 2021

Texas Instruments’ PGA20 x series

Test equipment and sensors both profit from amplifiers which change their gain on the fly. One of Texas Instruments evergreens recently saw quite a bit of additional attention. From a technical point ...Read More
Mar 12, 2021

Using NXP’s NXQ1TXH5 Qi Charging Circuit

QIck charging Adding wireless charging to furniture and other consumer goods is a nice way to add some oomph to an otherwise boring product. NXP’s NXQ1TXH5 provides an interesting, albeit diffic...Read More
Mar 12, 2021

BAV99 and BAS16 – Smart Diodes

Two-terminal diodes are among the best-known components in electrical engineering: electronics 101 cannot be passed without them – BAV99 and BAS16. Combining multiple diodes reduces part count a...Read More
Mar 12, 2021

AD9833 from Analog Devices

While arbitrary waveform generators are among the most helpful tools in the laboratory, they tend to spend most of their time outputting sines, triangles, and rectangles intended to stimulate sensors ...Read More
Mar 12, 2021

Analog Devices’ AD215

Isolated amplifier Galvanic insulation is God‘s gift to man – whether optocoupler or light waveguide line, being able to transfer things without creating a physical connection is extremely...Read More
Mar 12, 2021

Panasonic’s popular EXB-28V470JX

Be it pull-up resistors, pull-down resistors or just any other thing – many, if not most PCB designs come with a group of similar resistors. The knee-jerk reaction involves hitting the add a res...Read More
Mar 12, 2021

Littelfuse’s RUEF300 Fuse

A fuse which never blows Surface-mount fuses do a good job at protecting components from burning up – sadly, exchanging them is not a simple task manageable by end users. LittelFuse‘s RUEF...Read More
Mar 12, 2021

Wurth’s 150353 LED Family

LED, meet Plant One of the issues making underground real estate unpopular with engineers is the lack of the ability to grow plants. Artificial lighting has low efficiency – recently, Würth...Read More
Mar 12, 2021

Infineon IRLML5203PBF and Cree C3M0065090J

MOSFET Raising In the age of the IC, transistors usually are not considered particularily interesting. However, some MOSFETs stand in the center of attention – let us be your guide to some cool ...Read More
Mar 12, 2021

MicroSemi AS73211 Precision Colour Sensor

Precision colour sensing made easy Austrian MicroSemi recently divested itself of its transceiver portfolio, leaving standards such as AS-I stranded. Sensors were selected as the new main field of bus...Read More
Mar 12, 2021

Analog Devices’ LT4412B and LTC4412

A Very Brainy Diode Jack Ganssle, publisher of the legendary EmbeddedMuse newsletter, once stated that the embedded space is ideal as things permanently improve. When looking at diodes, the reverse is...Read More
Mar 12, 2021

Weidmüller 1469530000 and TMR 1212

To build or to buy? Power supply design has always been a bit of a topic – long-term followers of the OEMsecrets article series know that repairing TMI usually starts out with power supply troub...Read More
Mar 12, 2021

TPS7B68 – Watchdog Meets LDO

Power supply problems and software lockups are amongst the most common issues Power supply problems and software lockups are amongst the most common issues plaguing embedded systems. Watchdog timers a...Read More
Mar 12, 2021

Analog Devices’ AD534 Series

Digital to analog converters usually come with one or two channels. Sadly, analog output needs tend to flock – in that case, Analog Device’s eight-converter AD534x family is an excellent c...Read More
Mar 12, 2021

A Spike’s Mortal Enemy

Disturbances of the power supply are common Disturbances of the power supply are common – in the automotive space just as much as in classic AC grids. Additional demands imposed by various forms...Read More
Mar 12, 2021


Small, fast and stable Generating a stable clock is far from easy: while current microcontrollers usually have some kind of embedded clock source, accuracy requires external components. Integrated osc...Read More
Mar 12, 2021

RS485 Driver

RS485 sounds like just another serial protocol RS485 sounds like just another serial protocol which no one really uses anymore. Sadly, this cannot be further from the truth – read on to find out...Read More
Mar 12, 2021

SMBJ5342B-TP – SMBJ Diode

Resilient attenuator on the cheap When adjusting voltage levels for process computers, accuracy is not always important: in many cases, good isolation from the incoming high voltage spikes is of more ...Read More
Mar 12, 2021

LCB710 – An engineer's dream

Controlling a large current with a small one without a physical connection Controlling a large current with a small one without a physical connection, traditionally leads to a knee-jerk reaction of re...Read More
Mar 12, 2021

NRF51 – To Spend or Not to Spend

Some years ago, development kits were expensive by definition Some years ago, development kits were expensive by definition. As the “maker revolution” redistributed electronics development...Read More
Mar 12, 2021

Texas Instruments’ BQ40Z50 Alternative

Many moons ago, creating a battery for a mobile device was simple. You grabbed a few nickel cadmium cells, trickle charged them and you were sorted. Today, advanced battery chemistry and their explosi...Read More
Mar 12, 2021

Understanding the T Flip-Flop

Digital circuits are the basic building blocks for most computing devices. Digital circuits are divided into two main types: Combinational Logic Circuits, and Sequential Logic Circuits. What’s t...Read More
Jan 11, 2021
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