1999 dec 23 1 philips components product speci?cation ferrite ring cores (toroids) tn36/23/15 ring cores (toroids) effective core parameters coating 1. the cores are coated with polyamide 11 (pa11), flame retardant in accordance with ul 94v-2 ; ul file number e 45228 (m). isolation voltage 2. 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: outside diameter = 36 0.7 mm; inside diameter = 23 0.5 mm; height = 15 0.3 mm. 2. due to the rectangular bh-loop of 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 3e5 and 3e6 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; flame retardant in accordance with ul 94v-2 ; ul file number e 192048. 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 (2) -? 800 black tn36/23/15-3r1 3s4 2285 25% ? 1700 uncoated t36/23/15-3s4 (1) 3f3 2420 25% ? 1800 blue tn36/23/15-3f3 3c90 3090 25% ? 2300 ultramarine tn36/23/15-3c90 3c11 5800 25% ? 4300 white tn36/23/15-3c11 3e25 7390 25% ? 5500 orange tn36/23/15-3e25 3e5 (3) 11400 30% ? 8500 yellow/white tl36/23/15-3e5 3e6 (3) 13600 30% ? 1000 purple/white tl36/23/15-3e6 warning do not use 3r1 cores close to their mechanical resonant frequency. for more information refer to 3r1 material speci?cation in this data handbook.
1999 dec 23 2 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; = 50 mt; t = 100 c 3c90 3 320 0.96 0.96 - 3f3 3 320 - 0.95 1.7 b ? b ? b ?
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