Check the listing for details. Portable MK328LCD Backlight Transistor Tester Diode Inductance Capacitance Meter. Condition: New. Listed at 24.48 USD. Store category Sign Up Now ! You may also like Portable MK328LCD Backlight Transistor Tester Diode Inductance Capacitance Meter Product Description Features:This meter is an intelligent semiconductor device analyzer, it can measure most of the diodes, bipolartransistors, Junction/MOS FETs and low power thyristors. It automatically identifies the type of devices andpinouts, measures the current gain HFE, gate theshhold and FET junction capacitance, a typical application is topair two transistors or identify an unknown SMD device. The test clips can be connected any way round, thepinout can be identified and displayed on screen vs. test clip numbers. Beside the semiconductor device analyzer,this meter can also work as a RLC/ESR meter, the RLC/ESR accuracy may not be able to compete with theprofessional one, but it definitely meets the needs for most of the applications. A 9V battery (part number 6F22) isused for this meter, the typical working current is about 20mA, standby current is about 20nA. Dimension:83x152x34mm, weight 175 gram (no exclude battery).Special caution: Discharge the capacitors completely before you measure it, otherwise, it could damageyour meter!2．Panel features, test clips and test jig2.1 Panel features (refer to Figure 1)Figure 1: Panel features① :LCD screen, to display measured data② : Test/power-on button. When this button is first pushed, it turns on the meter power andexcuses a measurement. After that, every push, it will excuses a measurement. The meter will turn3off the power automatically if you don’t use it within 20 seconds③ : Test terminal 1, Yellow, will display as pin 1 on LCD.④ : Test terminal 2, Green, will display as pin 2 on LCD.⑤ : Test terminal 3, Red, will display as pin 3 on LCD.2.2 Test clips and test jigFor those big size DUTs (device under test), you may connect them directly to the test terminals,otherwise, you need the test clips and test jig as shown in Figure 2 and Figure 3. With clips and jigyou can measure all most all the devices.Figure 2: Test clips （standard）Figure 3: Multi-function Test Jig(option)3．Basic Meter operation3.1 Clips: Three clips can be used for any non-SMD devices, you can hook up the clips any wayround, the meter will identify and display the pinout vs. the clip numbers on the screen. Figure 4shows an example for a medium-power NPN transistor test.4Figure 4: Test Transistor with Test Clips3.2 Test Jig: It is used for small pin pitch and thin pin lead device, such as low power transistor,resistor and capacitors,.This jig has a test area for SMD devices. Figure 5 shows an example ofcapacitor test .5Figure 5: Test Capacitor with Test Jig4．Test examples4.1It shows that no device is connected on test terminals or an unknown part. It may also be that the devise wasdamaged----------------------------------------------------------------------------------------------------------------------------------------64.2 Test a NPN transistorIt shows that the DUT is NPN transistor, test terminal 1,2,and 3 are connected to E,C and B pins, Gain is 248, andforward voltage on junction B and E is 619Mv, leakage current ICE0=0,ICES=0.4.3 Test a PNP transistorIt shows that the DUT is a PNP transistor, the test terminals 1, 2 and 3 are connected to transistor pin E, C and B,Gain is 356, the forward voltage on B and E junction is 662mV, leakage current ICE0=0,ICES=0.4.4 Test a Junction FETIt shows that the DUT is a N junction FET, the test terminals 1, 2 and 3 are connected to pin D, G and S. When thevoltage between G and S is 0.75V, the measured drain current is 1.1mA4.5 Test a MOS FETIt shows that the DUT is NMOS FET, test terminals 1, 2 and 3 are connected to pin S, G and D. There is a protectdiode between S and D, the anode of the diode is connected to S, and the cathode of the diode is connected toD.Junction capacitance is 92pF, the gate threshold voltage is 1.9V and the forward voltage is 708mV.4.6 Test a thyristor7It shows that DUT is a thyristor, test terminals 1, 2 and 3 are connected to pin C (cathode), G (control gate) and A(anode), the forward voltage is 0.78V.4.7 Test a triacIt shows that the DUT is a triac, test terminals 1, 2 and 3 are connected to first anode 1, control gate G, secondanode2, and the forward voltage is 0.99V----------------------------------------------------------------------------------------------------------------------------------------4.8 Test a diodeIt shows that the DUT is a diode, test terminal 1 is connected to anode, and test terminal 3 is connected to cathode.The forward voltage is 666mV. Junction capacitance is 11pF.4.9 Test a resistorIt show the DUT is a 82.57k resistor, between terminal 1 and 3.----------------------------------------------------------------------------------------------------------------------------------------4.10 Test two resistorsIt shows that the DUT are two resistors, 12.34k ohm between terminal 1 and 2, and 8889 ohm between terminal 2and 3. Payment Shipping Return policy Contact us & Warranty Working time Payment We accept PayPal only. Payment must be received within 7 business days of auction closing. We ship to PayPals address only. Please make sure your address in EBAY can match with your shipping address on PayPal. All major credit cards are accepted through secure payment processor PayPal. TOTAL AMOUNT DUE includes the final auction price plus S&H (Shipping and Handling). S&H will be determined based upon the ship to address. PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. Shipping 1. Item processing time. We will ship the products within 1-5 working days upon the confirmation of your cleared payment, when buyers have some special request (e.g.Voltage, color...etc.), we may delay to ship the orders and will inform buyers about it. Do please check your message box in 1-2 days after payment is cleared. Otherwise order may be cancelled due to insufficient of your information. 2.Shipping methods. Items are shipped out via SpeedPAK or E-packet or any other shipping method that can fit your country, we will choose the reasonable way for you. 3. Delivery time may vary with countries and international shipping for some countries may be much slower than expected. Also your local custom may delay the shipping a lot due to the custom duty they want to charged from you for importing this item from other countries. Note: Any Import or export duties and the cost of dispatching for remote areas, will be borne by the buyer, because it is difficult to know all countrys custom duty or remote area before shipping the item. 4. Please Note buyers from some of the countries may need to contact us before making payment.You may be requested to pay extra shipping cost charged by shipping company otherwise order may be cancelled automatically due to insufficient payment for shipping. We need to revise your invoice before your payment please... Return policy (1) Taking photos and sending it via eBay Message Box. Missing item or get wrong item or damaged items, or the item seams can not work well, please keep all the items in original condition, make all the items together with packing, then take some photos of them and send us the photos by message box. (2) How we will react? We will investigate the case and may send you the missing item or replacement or refund upon the situation of the case. (sometimes you may be requested to return the incorrect item).Or if it is not sellers error, buyer may need to cover the returning cost. (3) Valid time for returning. Please contact us within 7 days upon receiving the package.All items must be returned within 30 days of purchasing the item. Contact us & Warranty Warranty: 3-24 months warranty is provided to our products. The length of the warranty depends on the nature of the products. Please contact us if you are wondering about how the warranty works for your item. Contact: Do please contact us before leaving any negative feedback or Opening any kind of case. We promise to achieve your 100% satisfaction. But negative feedback actually can not solve any problem. Thank you so much for your kindness and understanding. Working time Beijing time :AM 8:00 -PM 8: 00