KOA Speer manufactures a broad line of surface mount passive components that will ensure the optimum performance of your circuit design. Their engineering teams are developing a wide range of new smaller sizes and integrated packages to accommodate higher clock speeds and product downsizing, such as resistors, inductors, EMI/RFI suppressors, MLCC, SMD/SMT, resistor networks and arrays, as well as thick and thin film resistors. KOA Speer's world class manufacturing facilities are poised to ramp up with new designs, allowing the shortest of lead times to market.
KOA Speer SL Series Molded Current Sense Resistors are surface mountable components that are AEC-Q200 qualified for automotive applications. The SL Series Molded Current Sense Resistors from KOA Speer are constructed in a flameproof UL94V0 molded polymer case and have excellent dimension accuracy, mountability, and shock resistance. This series offers zero ohm (SLZ) and low-profile (TSL) options.
KOA Speer PSI Series Power Shunt Resistors address higher-current applications. The PSI Series Resistors from KOA Speer have 3W power rating that allows them to have a smooth current flow which is ideal for large current detecting. These resistors have a flat rectangular structure for strong mounting and T.C.R. value of ±50 for effective operation over a wider temperature span. The AEC-Q200 qualified PSI resistor series offers resistance range from 3mΩ to 4mΩ and operating temperature range from -65ºC to +155ºC.
KOA Speer PSE Series Power Shunt Resistors address higher-current applications. The PSE Series Resistors from KOA Speer have power rating up to 5W allowing them to offer a smooth current flow ideal for large current detecting. These resistors have a flat rectangular structure for strong mounting and T.C.R. value of ±150ppm/ºC that gives them effective operation over a wider temperature span. They also have greater stability under load and are AEC-Q200 qualified. PSE series resistors have a resistance range from 0.5mΩ to 2mΩ.
KOA Speer NV73DS Series Metal Oxide Varistor is a multilayer, 40-joule load dump varistor that absorbs surge voltage that occurs from the inductive loads of motors and relays to protect electronic components. The NV73DS series load dump metal oxide varistors from KOA feature symmetrical non-linearity V-I characteristics ideal for maximum absorption of both positive and negative surges and have a high resistance to cyclic temperature stress. These varistors meet load dump surge test for JASO and are AEC-Q200 qualified. NV73DS specifications include voltage ranges from 20 to 45 V1mA, maximum clamping voltages between 40 and 60 V1A, and operating temperature range from -40ºC to +125ºC.
KOA Speer BPR Series Metal Plate Resistors are rectangular power current detecting resistors that are flame retardant in a ceramic case. The BPR series metal plate resistors from KOA are also space-saving components that offer automatic insertion for a 5mm pitch between terminals. Other features include low inductance, power rating from 2W to 10W, and operating temperature range from -40ºC to +200ºC.
KOA Speer RK73H-RT Series Anti-Sulfur, AEC-Q200 Qualified Thick
Film Chip Resistor is made with a sulfur-proof electrode material, and features precision tolerances of 0.5% and 1.0% and a
resistance range of 10Ω ~ 10MΩ. It is available in sizes ranging
from 0402 up to 2512, and is ideal for industrial, automotive,
transportation, telecommunication and consumer markets, in applications
such as power supplies, factory automation, car electronics, oil-rich
environments and outdoor environments such as welding, mining,
agriculture and winery. The RK73-RT series meets ASTM-B-809 Flowers of
Sulfur testing and is AEC-Q200 qualified.
KOA Speer TPR Series Temperature Protection Resistors safely interrupt open circuits up to AC250V voltage and completely isolate the circuit after quickly fusing to the overload. The TPR series temperature protection resistors from KOA have the pulse capability of wirewound resistors and are approved by UL1412 safety standards and are lightning surge compliant (IEC61000-4-5). Other TPR series features include resistance range from 2Ω-10kΩ at 5% tolerance, wide operating temperature range from -40ºC to +150ºC, and 1 watt power rating. This series is ideal for AC adaptors, small size switching power supplies, and lighting equipment (LED).
KOA Speer RK73B Series Chip Resistors are available in a wide range of sizes, from the 01005 (1F) up to 2512 (3WA). These chip resistors feature a power rating range of .03W to 1W, resistances up to 22MΩ, and maximum working voltages between 15V and 200V. Used primarily on portable products where size and/or weight are key selling points, KOA Speer RK73B Series Chip Resistors are ideal for applications such as package-on-package (PoP) high density PCBA's, mobile phones, RF modules, micro drives, handheld memory products (SD cards), portable application-mobile phones, and digital cameras.
KOA Speer has expanded the voltage of the TLR current sense resistor
series to 3W (TLR3AP). The TLR3AP series is AEC-Q200 certified, making
it a great product for automotive applications. KOA Speer TLR Series Current Sense Resistors feature filletless products
with high reliability and performance, low resistance, are SMD type,
and are small with low height. TLR Series Current Sense Resistors are
suitable for reflow soldering. Ideal applications for KOA Speer TLR
Series Current Sense Resistors include current sensing, voltage
division, and pulse applications.
NEW! KOA Speer has expanded the HV73 Flat Chip Resistor Series with additional case sizes 0603, 0805, and 2512.
KOA Speer HV73 Flat Chip Resistors, flat chip resistors for high
voltage, feature superior maximum working voltage to the RK73 series.
KOA Speer HV73 Flat Chip Resistors are available in two case sizes, 1206
and 2010, and a have resistance tolerance of ±1% to ±5%.
KOA Speer PCF Series Ceramic Fixed Power Resistors feature a power rating range of 0.5 W to 2 W and tolerance of ±10%. KOA Speer PCF Series Ceramic Fixed Power Resistors are able to replace carbon composition resistors in most applications and are suitable for automatic machine insertion.
KOA Speer's SG73 Series Surge Current Thick Film Resistors are superior to RK73B/RK73H Series in surge dielectric withstanding voltage. The SG73 Series Surge Current Thick Film Resistors from KOA Speer are surface mountable resistors that feature the following markings: SG73P-black three-digit; SG73S-white three-digit on green protective coating; SG73P/S(1E, 1J)- no marking; and SG73P/S (1E)-black coating. SG73 Series resistors use lead-free terminations that meet EU RoHS requirements.
KOA Speer HV73 Flat Chip Resistors are flat chip resistors for high voltage and feature superior maximum working voltage to the RK73 series. KOA Speer HV73 Flat Chip Resistors are available in two case sizes, 1206 and 2010, and have a resistance tolerance of ±1% to ±5%.
NEW! KOA Speer has added additional case sizes 0603, 0805, and 2512 to the HV73 Flat Chip Resistor Series.
KOA Speer WK73 Series Wide Terminal Flat Chip Resistors are
highly reliable and have high performance with T.C.R. ±100 x 10-6/K and a
resistance tolerance of ±1%. The wide terminals offer higher power
ratings, superior thermal shock characteristics and high solder joint
reliability. Constructed of ceramic substrate, resistive film, solder
and plating, and a protective coating, KOA Speer WK73 Series Wide
Terminal Flat Chip Resistor products with lead-free terminations meet
EU RoHS requirements.
KOA Speer TLRH Series Metal Plate Chip Resistors are small size, low resistance resistors for current detection. KOA Speer TLRH Series Metal Plate Chip Resistors features a carrier metal plate inside, and are resistors of high radiation of heat structure. KOA Speer TLRH Series Metal Plate Chip Resistors have high reliability and performance with low T.C.R. and are suitable for reflow soldering.