Top Passive Component Reviews

Senmod 25 x 25 x 10mm Heat Sink Cooling Module Aluminum Heatsink Cooler Fin Pack of 20

Can be applied for passive cooling of Stepper Drive, MOSFET, VRM, Vram, IC Chips etc..
Good appearance, easy to install and use.
Made of high quality Aluminum, good thermal conductivity..
Reduce the risk of hardware failure due to overheating..
Please make sure that the size of the heat sink fits that of your component..

Check Stock

Astrozap 6 SCT Flexi-Shield™ Flexible Dew Shield - fits Celestron telescopes with Side bar Notch - AZ-116

The dew shield is the basic component of the passive dew fighting system with the added feature of shielding the telescope from undesirable stray light..
Felt-lined to help absorb moisture and to prevent extraneous light from reaching the optics and greatly improve contrast..
Made from the highest quality ABS-grade polymers..

Check Stock

(2) Pairs MB QUART FSB216 6.5' 280 Watt Car Audio Component Speakers

Features: Pair MB Quart FSB216 6.5" 280 Watt Component Car Speakers. RMS Power Handling: 70 Watts (Per Speaker) / 140 Watts (Per Pair). Peak Power Handling: 140 Watts (Per Speaker) / 280 Watts (Per Pair). Speaker Impedance: 4 Ohms. Frequency Response: 55 Hz - 20 kHz. Sensitivity: 88 dB. Crossover Point: 2 kHz. Crossover Slope: 12 dB. Tweeter Dome Material: Aluminum dome tweeters deliver great sound with increased reliability.
Speaker Surround: Butyl rubber surrounds provide durability and deeper mid-bass impact. Voice Coil: Pure Copper voice coil creates a strong magnetic field with a very thin extrusion. Voice Coil Former: Kapton voice coil former is lightweight and efficiently dissipates heat. Spider: Natural fiber allows flexibility while the infused epoxy gives strength during the manufacturing process. Cone Material: Lightweight thermal-formed polypropylene cones enable faster midrange response.
Surround/Cone Coupling: The cone/surround connection utilizes a high temp adhesive which assure the cone and surround do not separate in high power uses or extremes of weather. Gasket: A textured ABS gasket assures a rigid linear seal to the mounting surface. Tinsel Leads: Highly conductive while remaining flexible during high power applications. Cooling S....

Check Stock

SynoRiver High Precision Passive Preamp, HiFi Preamplifier - RCA Stereo Audio Signal Volume Control (Silver)

...ssive speaker (can not connect passive speaker directly). RCA cable comes with package.
【Premium Material】 Solid and textured aluminum alloy oxidation wiredrawing shell, black immersion gold PCB sheet and gold-plated interface ensures more stable signal transmission, high-temperature resistance. High performance component will bring high quality listening experience, low noise and pure sound.
【Packing Lists】 Package includes 1 x tube preamp, 2 x 6K4 tubes, 1 x 12V 1A power supply, 1 x RCA cable, 1 x user manual, 1 x warranty card. Comes with 12-month guarantee.This is a preamplifier, not a power amplifier or phono preamp. Not for turntables or car audio.

Check Stock

Dayton 1 HP Belt Drive Motor, Capacitor-Start, 1725 Nameplate RPM, 115/208-230 Voltage, Frame 56

❶ This AIYIMA A07 power amplifier adopt the TPA3255D2 amp chip and NE5532 op-amp chip.Very Quiet, Runs Extremely Cool,Easy to set up.It's a nice mini audio component amplifiers for Home Audio stereo system.
❷ 300W+300W 2.0 Channel HiFi integrated class D amplifier, Exclusively designed for the customers who pursue HiFi sound,Use powerful power adapter have High efficient max power output up to 300 Watt.
❸ Two input ways:3.5mm AUX Audio input/ RCA Audio input（3.5mm interface is also Aux Audio output interface(3.5mm AUX sed as audio output can go to connect any Powered device: Speakers, Amplifier,Active Subwoofer ect.).More detail connection and use ways,pls see the main picture shown).
❹ Simple compact design,And the exterior design is delicate and beautiful little amp,It can match with your computer/ desktop /Home theatre system and so on.
A computer, an tube preamp(TUBE A3 PRO / T7 / T8), matched with our A07 home speaker amplifier, connected to your home audio passive speakers to form a perfect HIFI system, allowing you to liberate your ears in this noisy city.
❺ Package with a DC 32V 5A Power Adapter for free,you can upgraded the powerful power supply to get the maximum 300W x2 power output, such as 48V/10A(Cannot use industrial power suppl....

Check Stock

Rockford Fosgate PP4-X Punch Pro 4-Ohm Passive Crossover

The PP4-X Punch Pro Crossover is designed for use with 4-Ohm Punch Pro midrange and tweeters, creating a 2-way component system.
Featuring dual woofer outputs for use with two Punch Pro midrange drivers, providing 6dB/Octave dedicated low pass filter, working with built-in....
Pro series 4 Ohm passive crossover with power handling of 125 Watt RMS/250 Watt Max power and Designed ONLY for Rockford Fosgate Punch Pro speakers.
The PP4-X is sold as an individual unit (not in pairs) and includes mounting hardware.
Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller.

Check Stock

Oscilloscope Transistor Tester 2 in 1, Geevorks 2.4" TFT Digital Oscilloscope 200kHz Bandwidth, Electronic Component Tester, NPN/PNP Diode Capacitor Resistor Transistor Testing Tool

【2 In 1 Testing Tool】This product ingeniously integrates digital oscilloscope, electronic component tester, PWM signal generator and other functions into one. 2.4inch High-definition color screen curve data at a glance..
【One-key Auto/3 Trigger Modes】Equipped with efficient one-key AUTO, the measured waveform can be displayed without cumbersome adjustment. With complete trigger function (Single, Normal, Automatic), it can be used freely for both periodic analogs signals and aperiodic digital signals..
【Digital Oscilloscope】The oscilloscope has a real-time sampling rate of 2.5MS/s and a 200kHz bandwidth. Up to ±400V voltage signal can be measured, has a wide applications. Self-contained 80kHz /5.0V PWM waves test signal source with adjustable duty cycle..
【Transistor Tester】Automatically identify and measure various transistors, including NPN and PNP transistors, N-channel and P-channel FETs, junction FETs, diodes, dual diodes, thyristors, etc., as well as passive components such as resistors, inductors, and capacitors.
【Electronic Component Tester】This product ....

Check Stock

Resistance Tester Resistance Capacitance Meter, MASTECH MS8910 Capacitance Meter Tester Resistance Capacitance Meter, LCR/ESR Meter

LCD DISPLAY ENSURES CLEAR READING--3000 count LCD display.
HANDHELD RESISTANCE TESTER OFFERS CONVENIENT OPERATION--The tester is a handheld and battery operated very convenient small Tool that is specially used to measuring SMD.
AUTOMATICALLY IDENTIFIED CAPACITANCE TESTER--The tester is automatically identified the passive component.
AUTO POWER OFF PROVIDES ECONOMIC USING--Auto Power OFF. If the tester is idle for more than 10 minutes, the tester will automatically turn off the power.
PREMIUM QUALITY MATERIAL ENSURES GOOD DURABILITY AND NICE APPEARANCE--The entire outer surface of the tester case has been with thermo plastic elastomer, and the two testing pins has been gold-plated, so that it is reduce pin contact resistance and prevent to get rusty.

Check Stock

RTL-SDR Blog R820T2 RTL2832U 1PPM TCXO SMA Software Defined Radio (Dongle Only)

Includes 1x RTL-SDR Blog brand R820T2 RTL2832U 1PPM TCXO HF Bias Tee SMA Dongle (V3) (Dongle Only).
Several improvements over other brands including use of the R820T2 tuner, improved component tolerances, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector, aluminium shielded case with thermal pad for passive cooling, activatable bias tee circuit and a much improved antenna set..
Can tune from 500 kHz to 1.7 GHz and has up to 3.2 MHz of instantaneous bandwidth (2.4 MHz stable). (HF reception below 24 MHz in direct sampling mode with reduced performance). Please note RTL-SDR dongles are RX only..

Check Stock

AIYIMA A07 TPA3255 Power Amplifier 300Wx2 HiFi Class D Stereo Digital Audio Amp 2.0 Channel Amplifier for Passive Speaker Home Audio (A07+DC 32V Power Adapter)

❶ This AIYIMA A07 power amplifier adopt the TPA3255D2 amp chip and NE5532 op-amp chip.Very Quiet, Runs Extremely Cool,Easy to set up.It's a nice mini audio component amplifiers for Home Audio stereo system.
❷ 300W+300W HiFi integrated class D amplifier, Exclusively designed for the customers who pursue HiFi sound,High efficient max power output up to 300 Watt.
❸ Two input ways:3.5mm AUX Audio input/ RCA Audio input（3.5mm interface is also Aux Audio output interface(3.5mm AUX sed as audio output can go to connect any Powered device: Speakers, Amplifier,Active Subwoofer ect.).More detail connection and use ways,pls see the main picture shown).
❹ Simple compact design,And the exterior design is delicate and beautiful little amp,It can match with your computer/ desktop /Home theatre system and so on.
A computer, an tube preamp(TUBE A3 PRO / T7 / T8), matched with our A07 home speaker amplifier, connected to your home audio passive speakers to form a perfect HIFI system, allowing you to liberate your ears in this noisy city.
❺ Package with a DC 32V 5A Power Adapter for free,But if you want to get the maximum power of 300W, you need to buy a power adapter that uses DC 48V and current is above 7A(Cannot use industrial power supply,and please choose t....

Check Stock

FarmTek Horticultural Coarse Vermiculite - 4 Cubic Feet (1)

Horticultural coarse vermiculite is permanent, clean, odorless, non-toxic, sterile and pH neutral. It will not deteriorate, turn moldy or rot. It is typically mixed with soil, peat, composted pine bark, fertilizers, pesticides and herbicides and promotes faster root growth and quick anchorage to young roots..
Horticultural coarse vermiculite is a natural ‘wicking’ mineral. The vermiculite granules attract and hold ammonium, potassium, calcium and magnesium needed for the growing plants. Additionally, the vermiculite/peat mixture provides excellent aeration and retention of plant food and moisture. The growing plants take what they need (food, air, water, minerals), when they need it from the vermiculite granules, thus less maintenance for the grower and healthier plants with higher yields..
Because the coarse vermiculite granules can soak up to over three times its original volume in water it can be a very useful component in a passive hydroponics system that does not utilize pumps or other devices to force the nutrient solution to flow. Additionally, it is perfect for seed germination and cutting propagation..

Check Stock

AIYIMA A07 TPA3255 Power Amplifier 300Wx2 HiFi Class D Stereo Digital Audio Amp 2.0 Channel Amplifier and AIYIMA 4MM Gold-Plated Banana Plugs [4 Pairs / 8 Pcs] Bundel

❶ This AIYIMA A07 power amplifier adopt the TPA3255D2 amp chip and NE5532 op-amp chip.Very Quiet, Runs Extremely Cool,Easy to set up.It's a nice mini audio component amplifiers for Home Audio stereo system.
❷ 300W+300W HiFi integrated class D amplifier, Exclusively designed for the customers who pursue HiFi sound,High efficient max power output up to 300 Watt.
❸ Two input ways:3.5mm AUX Audio input/ RCA Audio input（3.5mm interface is also Aux Audio output interface.More detail connection and use ways,pls see the main picture shown).
❹ Simple compact design,And the exterior design is delicate and beautiful little amp,It can match with your computer/ desktop /Home theatre system and so on.
A computer, an tube preamp(TUBE A3 PRO / T7 / T8), matched with our A07 home speaker amplifier, connected to your home audio passive speakers to form a perfect HIFI system, allowing you to liberate your ears in this noisy city.
❺ Package with a DC 32V 5A Power Adapter for free,But if you want to get the maximum power of 300W, you need to buy a power adapter that uses DC 48V and curr....

Check Stock

AIYIMA A08 PRO TPA3255 Power Amplifier Bluetooth 5.1 with VU Meter 300W+300W HiFi Class D Stereo Digital Audio Amp 2.0 Channel Amplifier for Passive Speaker Home Audio

... HD transmission】Adopt Qualcomm QCC5125 Chip,Support SBCAACAPTXAPTX-LLAPTX-HDLDAC,Multiple audio input methods of Bluetooth and RCA can meet customers who need more needs.
【HiFi clear sound with tone control】 Resonable circuit and concise wiring,high quality Internal component such as Phase mode inductance,make the sounds warm and sweet no noise. Sound is typical Class D "bright," with good bass, along with a bright (and dynamic) midrange and high frequency area.that is both dynamic and full-bodied.
With treble and bass knobs to adjust one's own preferable sound styles, presents HiFi music with rousing highs and deep lows.
【Simple compact but powerful design】Adopted TPA3255 Chip,each channel can output 300W(4Ω Load), match perfectly and easily to drive all 3-8Ω passive speakers, adds a low frequency output easy to connect Powered speakers and build 2.1 channel system, the bass effects is greatly enhanced..
【What You Get after your purchase】Provide worry -free warranty and technical services.
Package with a DC 36V 6A Power Adapter for free,But if you want to get the maximum power of 300W, yo....

Check Stock