Metal Glazed Resistor MGR Series - MERITEK Coating-insulated megohm fixed resistors ( Metal Glazed ) High Voltage Surge Resistors. Features: •Stable performance against high temperature and voltage. •Good performance in enduring moisture and overload capability. •Operating ambient temperature: -55℃ to +175℃ •Lead (Pb)-free solder contacts •Epoxy and silicone coating available for various applications. •Resistance tolerance: 1% & 5% •Power rating: 1/8 watt to 3 watts, ±50 ppm/°C to ±200 ppm/°C •Resistance range – up to 10G ohms •Dielectric withstanding voltage - Vmax: 1,200V Part Number System : MGR S 1/4W - VALUE J TR B = Bulk; TR = Tape & Reel Resistance Tolerance (e.g J = +/-5%, F = +/-1%) Resistance Value (e.g. 0R1, 1R, 10R, 100R, 1K, 10K, 100K, 1M, 10M) Power Rating Coating (S = Silicone, E = Epoxy) Metal Glazed Resistor Dimension : Style (Din Size) L Dimension(mm) D H d MGR1/8W(0204) 3.3±0.5 1.8±0.3 28±2.0 0.45±0.03 MGR1/4W (0207) 6.3±0.5 2.3±0.3 28±2.0 0.55±0.03 MGR1/2WS (0207) 6.3±0.5 2.3±0.3 28±2.0 0.55±0.03 MGR1/2WS(0309) 8.5±0.5 2.7±0.5 27±2.0 0.60±0.03 Appearance : MGR 1/2W (0410) 9.0±0.5 3.2±0.5 26±2.0 0.65±0.03 MGR 1WS (0412) 9.0±0.5 4.0±0.5 26±2.0 0.65±0.03 Silicone Resin ------ Brown --- (Flame-Proof) Epoxy Resin ------ Light Blue MGR 1W (0414) 11.5±1.0 4.0±0.5 35±2.0 0.78±0.03 MGR 2WS (0416) 11.5±1.0 4.5±0.5 35±2.0 0.78±0.03 MGR 2W (0516) 15.5±1.0 5.0±0.5 32±2.0 0.78±0.03 MGR 3WS (0518) 15.5±1.0 5.0±0.5 32±2.0 0.78±0.03 Metal Glazed Resistor MGR Series - MERITEK Rating : Power rating MGR1/8W(0204) MGR1/4W(0207) MGR1/2WS(0207) MGR1/2WS(0309) Max. working Voltage Max. Overload Voltage DC500V DC1600V AC1150V DC1700V DC1800V Dielectric Withstanding Voltage Resistance Range* Silicone Resin Epoxy Resin 1000V 300V 400V 100K~100M DC2000V AC1500V 400V 500V 100K-1G 2500V 400V 500V 100K-1G MGR1/2W(0410) DC2000V 2500V 500V 700V 100K-1G MGR1WS(0412) DC2500V 3500V 500V 700V 100K-1G MGR1W(0414) DC3000V 4000V 500V 1000V 100K-1G MGR2WS(0416) DC3500V 4000V 500V 1000V 100K-1G MGR2W(0516) DC3500V 4000V 700V 1200V 100K-1G MGR3WS(0518) DC3500V 4000V 700V 1200V 100K-1G Resistance Tolerance T.C.R. Rating Ambient Temperature Operating Temperature 70℃ -55℃～+175℃ K（±10％）E12 J（±5％）E24 ±200PPM/℃ F（±1％）E24 ±100PPM/℃ ＞1G（±10％） ±50PPM/℃ E12 * Resistance range reflects standard resistance values. Other resistance values are available on request. Maximum resistance: 10G ohms Performance : Test Items Short time overload Moisture resistance Load life Insulation resistance Dielectric withstanding voltage Resistance to soldering heat Temperature cycling Terminal strength Intermittent ‘overload Test Methods Rated Voltage X 2.5 or Max. overload Voltage, whichever is lower, for 5sec. 40℃±2℃, 90%~95%RH,1000h 90 min【ON】30 min【OFF】 1000hours at rated voltage, 70℃ 90 min【ON】30 min【OFF】 Specifications ±（1.0%＋0.05Ω） ±（5.0%＋0.05Ω） ±（3.0%＋0.05Ω） 500±50V DC During 1 min V-Block method ±10,000MΩ Over In V-Block for 60 seconds By Type 260℃±5℃,10s±1s or 350℃±10℃, 3.5s±0.5s 5 cycles for –25℃±3℃(30min)；room temp.(30min) ~ +85℃±3℃(30min) room temp. (30min) ±（1.0%＋0.05Ω） Direct load for 10 sec. In the direction of the terminal leads. Tensile:≧2.5kg 4 times RCWV for10000cycles(1sec.on，25secs.off) ±（1.0%＋0.05Ω） ±(1%+0.05Ω)