1997 nov 21 734 philips components product speci?cation ferrite ring cores (toroids) tn36/23/15 ring cores (toroids) effective core parameters coating the cores are coated with polyamide 11 (pa11), flame retardant in accordance with ul 94v-2 . isolation voltage dc isolation voltage: 2000 v. contacts are applied on the edge of the ring core, which is also the critical point for the winding operation. symbol parameter value unit s (i/a) core factor (c1) 0.935 mm - 1 v e effective volume 8600 mm 3 i e effective length 89.6 mm a e effective area 95.9 mm 2 m mass of core ? 42 g fig.1 tn36/23/15 ring core. dimensions in mm. handbook, halfpage cbw300 21.9 0.7 15.7 0.6 coating pa11 ( ? 0.3) 36.9 0.9 ring core data notes 1. uncoated ring cores have the following dimensions: outer dimension = 36 0.7 mm; inner dimension = 25 0.5 mm; height = 15 0.3 mm. 2. due to the rectangular bh-loop of grade 3r1, inductance values strongly depend on the magnetic state of the ring core and measuring conditions. therefore no a l value is specified. for the application in magnetic amplifiers a l is not a critical parameter. 3. ring cores in grade 3e5 are lacquered (polyurethane) and have different dimensions: outside diameter = 36.25 0.9 mm; inside diameter = 22.75 0.7 mm; height = 15.25 0.6 mm. grade a l (nh) m i colour code type number 4c65 170 25% ? 125 violet tn36/23/15-4c65 4a11 940 25% ? 700 uncoated t36/23/15-4a11 (1) 3r1 -? 800 black tn36/23/15-3r1 (2) 3s4 2285 25% ? 1700 uncoated t36/23/15-3s4 (1) 3f3 2420 25% ? 1800 blue tn36/23/15-3f3 3c85 2700 25% ? 2000 red tn36/23/15-3c85 3c11 5800 25% ? 4300 white tn36/23/15-3c11 3e25 7390 25% ? 5500 orange tn36/23/15-3e25 3e5 11400 30% ? 8500 yellow/white tl36/23/15-3e5 (3) warning do not use grade 3r1 cores close to their mechanical resonant frequency. for more information refer to 3r1 material speci?cation in this data handbook.
1997 nov 21 735 philips components product speci?cation ferrite ring cores (toroids) tn36/23/15 properties of cores under power conditions grade b (mt) at core loss (w) at h = 250 a/m; f = 25 khz; t = 100 c f = 25 khz; = 200 mt; t = 100 c f = 100 khz; = 100 mt; t = 100 c f = 400 khz; =50mt; t = 100 c 3c85 3 320 1.4 1.6 - 3f3 3 320 - 0.95 1.7 b ? b ? b ?
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