{"id":1562,"date":"2026-05-29T13:55:31","date_gmt":"2026-05-29T05:55:31","guid":{"rendered":"..\/..\/..\/..\/index.html\/?p=1562"},"modified":"2026-05-29T13:55:37","modified_gmt":"2026-05-29T05:55:37","slug":"mp930-non-inductive-thick-film-resistor","status":"publish","type":"post","link":"..\/..\/..\/..\/index.html\/mp930-non-inductive-thick-film-resistor\/","title":{"rendered":"MP930 Non-inductive thick film resistor"},"content":{"rendered":"\n
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I. Overview MP930 is a series of high-power ceramic thick-film resistors from the INFEIMI brand, packaged in TO 220. It features non-inductive, high-power, high-precision, and can be mounted with a heat sink. It is commonly used in high-power scenarios such as current sampling, buffering\/absorption, and load management in power supplies, servo systems, and battery equipment.
II. Core Structure and Features \uf0b7 Process: Ceramic substrate + thick film resistor layer<\/strong> High-temperature sintering, with the resistor film integrated with the ceramic, resulting in good heat dissipation and high stability.
Package: TO 220 2 (two pins), with a bare ceramic heat dissipation surface on the back, allowing for direct attachment of a heat sink, making installation convenient.
Non-inductive design: Special resistor pattern, extremely low inductance, suitable for high-frequency, switching power supplies, snubber circuits, and RF (up to 500MHz at 50\u03a9).
Electrical isolation: The resistor body is isolated from the heat dissipation surface with an AC voltage of 1500Vrms, ensuring safety and reliability.
III. Key parameters (typical values) \uf0b7 Power: 30W @25\u2103; derated to 0W at 150\u2103.
Resistance range: 0.02\u03a9\uff5e4.99k\u03a9; options as low as 0.01\u03a9 are available, suitable for high-current sampling.
Accuracy: o\u22650.05\u03a9: \u00b11% (mainstream) o0.02\uff5e0.04\u03a9: \u00b15% oSome values are optional \u00b15%\/\u00b120%<\/strong>.
Temperature coefficient TCR: -20 to +80 ppm\/\u2103.
Operating temperature: -55\u2103 to +150\u2103.
Voltage resistance: 250V.
\uf0b7Dimensions: 10.41 \u00d7 3.18 \u00d7 16.52 mm (length \u00d7 width \u00d7 height).
Environmental protection: RoHS compliant.
IV. Model Naming (Example) MP930 0R50 1% \uf0b7 MP930: Series \uf0b7 0R50: 0.5\u03a9 \uf0b7 1%: Accuracy Common Resistance Values: 0.05\u03a9, 0.1\u03a9, 0.5\u03a9, 1\u03a9, 10\u03a9, 100\u03a9, 100k\u03a9, etc.<\/p>\n\n\n\n

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  1. Main functions and applications 1. Current sampling resistor: Accurately detects high currents (low resistance, 1% accuracy, no inductance) in power supplies, servo drivers, and battery management systems (BMS).<\/li>\n\n\n\n
  2. Snubber\/Absorbing Resistor: RC absorption and spike suppression (non-inductive, high-frequency) for switching power supplies and IGBT\/MOSFET circuits.<\/li>\n\n\n\n
  3. Load\/Discharge Resistor: Power supply dummy load, battery discharge, inverter braking (30W high power, heat dissipation available).<\/li>\n\n\n\n
  4. High-frequency \/ RF resistors: used in radio frequency circuits and matching networks (low inductance, available up to 500MHz).
    VI. Advantages Comparison \uf0b7 Wirewound Resistors: No inductance, good high-frequency performance, small size; wirewound inductors have large inductance and poor high-frequency performance.
    \uf0b7Ordinary thick film: high power, capable of heat dissipation, good isolation; ordinary thick film has low power and cannot be attached with a heat sink.
    Metal film: low resistance, high power; it is difficult to achieve 0.01\u03a9 with metal film, and it has low power.
    VII. Installation and Heat Dissipation \uf0b7 Directly attaching a heat sink: Apply thermal grease on the ceramic surface on the back, secure with M3 screws, which can significantly increase power (e.g., from 30W to 50W+).
    \uf0b7Pins: Standard TO 220 pins, with a pitch of 5.08mm, suitable for PCB mounting.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    I. Overview MP930 is a series of high-power ceramic thick-film resistors from the INFEIMI brand, packaged in TO 220. It […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1562","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"blocksy_meta":[],"_links":{"self":[{"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/posts\/1562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/comments?post=1562"}],"version-history":[{"count":1,"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/posts\/1562\/revisions"}],"predecessor-version":[{"id":1563,"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/posts\/1562\/revisions\/1563"}],"wp:attachment":[{"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/media?parent=1562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/categories?post=1562"},{"taxonomy":"post_tag","embeddable":true,"href":"..\/..\/..\/..\/index.html\/wp-json\/wp\/v2\/tags?post=1562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}