Constructional -Ceramic standoffs-TOROIDS- wires SWG to mm

 Ceramics
Τα κεραμικά στηρίγματα. Τι είναι: Οταν θέλουμε να περάσουμε υψηλά ρεύματα είτε Ηλεκτρικά είτε Ηλεκτρομαγνητικά θα πρέπει να βρισκονται σε αποσταση ασφαλείας από τις γειώσεις . Αυτο μας το εξασφαλίζουν Κεραμικοί διαχωριστες . Είναι μικρά πράγματα που δίνουν ποιότητα σε μια κατασκευή . Μονωτήρες ρευμάτων και θερμοκρασιών . Είναι κεραμικά αλλά εμεις τα λέμε και πορσελάνες διοτι και αυτες τετοια πραγματα είναι, ψημένες γαίες.    

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Round Ceramic Threaded Standoffs - Military
Cat. No.	Length "L" Inch [mm]	O.D.	Thread Size	Thread Depth "D" Inch [mm]	NL#
7661	.500 [12,70]	.375 [9,53]	6-32	.156 [ 3,96]	NL523W01-004
7662	.625 [15,88]	.375 [9,53]	6-32	.250 [ 6,35]	NL523W01-005
7663	.625 [15,88]	.500 [12,70]	8-32	.187 [ 4,75]	NL523W02-005
7664	.750 [19,05]	.375 [9,53]	6-32	.250 [ 6,35]	NL523W01-006
7665	.750 [19,05]	.500 [12,70]	8-32	.250 [ 6,35]	NL523W02-006
7666	1.000 [25,40]	.375 [9,53]	6-32	.375 [ 9,53]	NL523W01-008
7667	1.000 [25,40]	.500 [12,70]	8-32	.375 [ 9,53]	NL523W02-008
7668	1.000 [25,40]	.750 [19,05]	10-32	.375 [ 9,53]	NL523W03-008
7669	1.250 [31,75]	.375 [9,53]	6-32	.375 [ 9,53]	NL523W01-010
7670	1.250 [31,75]	.500 [12,70]	8-32	.375 [ 9,53]	NL523W02-010
7671	1.250 [31,75]	1.000 [25,40]	1/4-20	.437 11,10]	NL523W04-010
7672	1.500 [38,10]	.375 [9,53]	6-32	.375 [ 9,53]	NL523W01-012
7673	1.500 [38,10]	.500 [12,70]	8-32	.375 [ 9,53]	NL523W02-012
7674	1.500 [38,10]	.750 [19,05]	10-32	.375 [ 9,53]	NL523W03-012
7675	1.500 [38,10]	1.000 [25,40]	1/4-20	.500 [12,70]	NL523W04-012
7676	2.000 [50,80]	.375 [9,53]	6-32	.375 [ 9,53]	NL523W01-016
7677	2.000 [50,80]	.500 [12,70]	8-32	.375 [ 9,53]	NL523W02-016
7678	2.000 [50,80]	.750 [19,05]	10-32	.375 [ 9,53]	NL523W03-016

TOROIDS

Amidon IRON POWDER TOROIDAL CORES

Iron Powder Material	Basic Iron Powder	Material Permeability µo	Temperature Stability (ppm/°C)	Resonant Circuit Frequency Range (MHz)	Color Code
0	Phenolic	1	0	100.0 - 300.0	Tan
1	Carbonyl C	20	280	0.5 - 5.0	Blue
2	Carbonyl E	10	95	2.0 - 30.0	Red
3	Carbonyl HP	35	370	0.05 - 0.5	Grey
6	Carbonyl SF	8	35	10.0 - 50.0	Yellow
7	Carbonyl TH	9	30	5.0 - 35.0	White
10	Carbonyl W	6	150	30.0 - 100.0	Black
12	Synthetic Oxide	4	170*	50.0 - 200.0	Green/White
15	Carbonyl GS6	25	190	0.10 - 2.0	Red/White
17	Carbonyl	4	50	50.00 - 200.0	Blue/Yellow
26	Special	75	882	LF filters, chokes	Yellow/White

Material #17 has been developed as a temperature stable alternative to the #12.
Frequency ranges shown are for best 'Q'/ Useful over broader frequency ranges with lower 'Q'.

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• MATERIAL #0 (µ=1): Most commonly used for frequencies above 100 MHz. Available in toroidal form only. Note: Due to the nature of this material the inductance resulting from the use of a given AL value may not be as accurate as we would like. Inductance vs. number of turns will vary greatly depending upon the winding technique.
• MATERIAL #1 (µ=20): A Carbonyl 'C' material, very similar to material #3 except that it has higher volume resistivity and better stability. Available in toroidal form and shielded coil form.
• MATERIAL #2 (µ=10): A Carbonyl 'E' iron powder material having high volume resistivity. Offers high 'Q' for the 2 MHz to 20 MHz frequency range. Available in toroidal form and shielded coil form.
• MATERIAL #3 (µ=35): A Carbonyl 'HP' material having excellent stability and good 'Q' for the lower frequencies from 50 KHz to 500 KHz. Available in toroidal form and shielded coil form.
• MATERIAL #6 (µ=8): A Carbonyl 'SF' material. Offers very good 'Q' and temperature stability for the 20 to 50 MHz frequency range. Available in both toroidal and shielded coil form.
• MATERIAL #7 (µ=9): A Carbonyl 'TH' material. Very similar to the #2 and #6 materials but offers better temperature stability than either. Available in both toroidal and shielded coil form.
• MATERIAL #10 (µ=6): A powdered iron 'W' material. Offers good 'Q' and high stability for frequencies from 40 MHz to 100 MHz. Available in toroidal form and shielded coil form.
• MATERIAL #12 (µ=4): A Synthetic oxide material which provides good 'Q' and moderate stability for frequencies from 50 MHz to 200 MHz. If high 'Q' is of prime importance this material is a good choice. If stability is of a prime importance, consider the #17 material. The #12 material is available in all sizes up to T-94, in toroidal form. Not available in shielded coil form.
• MATERIAL #15 (µ=25): A carbonyl 'GS6' material. Has excellent stability and good 'Q'. A good choice for commercial broadcast frequencies where good 'Q' and stability are essential. Available in toroidal form only.
• MATERIAL #17 (µ=4): This is a new carbonyl material which is very similar to the #12 material except tatar it has better temperature stability. However, as compared to the #12 material, there is a slight 'Q' loss of about 10% from 50 MHz to 100 MHz. Above 100 MHz, the 'Q' will gradually deteriorate to approximately 20% lower. It is available in both toroidal form and the shielded coil form.
• MATERIAL #26 (µ=75): A Hydrogen Reduced material. Has highest permeability of all of the iron powder materials. Used for EMI filters and DC chokes. The #26 is very similar to the older #41 material but can provide and extended frequency range. See AC Line Filter and CD Choke sections for size, permeability and frequency range information.

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  MATERIAL 0 -- Permeability 1, Freq Range 100 MHz - 300 MHz, Color - Tan

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-12-0	.125	.062	.050	.74	.010	.007	3.0
T-16-0	.160	.078	.060	.95	.016	.015	3.0
T-20-0	.200	.088	.070	1.15	.025	.029	3.5
T-25-0	.255	.120	.096	1.50	.042	.063	4.5
T-30-0	.307	.151	.128	1.83	.065	.119	6.0
T-37-0	.375	.205	.128	2.32	.070	.162	4.9
T-44-0	.440	.229	.159	2.67	.107	.286	6.5
T-50-0	.500	.303	.190	3.03	.121	.367	6.4
T-68-0	.690	.370	.190	4.24	.196	.831	7.5
T-80-0	.795	.495	.250	5.15	.242	1.246	8.5
T-94-0	.942	.560	.312	6.00	.385	2.310	10.6
T-106-0	1.060	.570	.437	6.50	.690	4.485	19.0
T-130-0	1.300	.780	.437	8.29	.730	6.052	15.0

Note:

Due to the nature of the '0' material, the inductance resulting from the use of the given A_L value may vary greatly depending upon the winding technique. This may cause discrepancy between calculated and measured inductance.


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MATERIAL 1 -- Permeability 20, Freq. Range 0.5 MHz to 5 MHz, Color - Blue

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	X (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-12-1	.125	.062	.050	.74	.010	.007	48
T-16-1	.160	.078	.060	.95	.016	.015	44
T-20-1	.200	.088	.070	1.15	.025	.029	52
T-25-1	.255	.120	.096	1.50	.042	.063	70
T-30-1	.307	.151	.128	1.83	.065	.119	85
T-37-1	.375	.205	.128	2.32	.070	.162	80
T-44-1	.440	.229	.159	2.67	.107	.286	105
T-50-1	.500	.303	.190	3.03	.121	.367	100
T-68-1	.69	.370	.190	4.24	.196	.831	115
T-80-1	.795	.495	.250	5.15	.242	1.246	115
T-94-1	.942	.560	.312	6.00	.385	2.310	160
T-106-1	1.060	.570	.437	6.50	.690	4.485	325
T-130-1	1.300	.780	.437	8.29	.730	6.052	200
T-157-1	1.570	.950	.570	10.05	1.140	11.457	320
T-184-1	1.840	.950	.710	11.12	2.040	22.685	500
T-200-1	2.000	1.250	.550	12.97	1.330	17.250	250

Note:

Most cores can be very useful well below the lower frequency limits shown here.

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MATERIAL 2 -- Permeability 10, Freq. Range 2 MHz to 30 MHz, Color - Red

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-12-2	.125	.062	.050	.74	.010	.007	20
T-16-2	.160	.078	.060	.95	.016	.015	22
T-20-2	.200	.088	.070	1.15	.025	.029	25
T-25-2	.255	.120	.096	1.50	.042	.063	34
T-30-2	.307	.151	.128	1.83	.065	.119	43
T-37-2	.375	.205	.128	2.32	.070	.162	40
T-44-2	.440	.229	.159	2.67	.107	.286	52
T-50-2	.500	.303	.190	3.03	.121	.367	49
T-68-2	.690	.370	.190	4.24	.196	.831	57
T-80-2	.795	.495	.250	5.15	.242	1.246	55
T-94-2	.942	.560	.312	6.00	.385	2.310	84
T-106-2	1.060	.780	.437	6.50	.690	4.485	135
T-130-2	1.300	.950	.437	8.29	.730	6.052	110
T-157-2	1.570	.950	.570	10.05	1.140	11.457	140
T-184-2	1.840	1.250	.710	11.12	2.040	22.685	240
T-200-2	2.000	1.250	.550	12.97	1.330	17.250	120
T-200A-2	2.000	1.405	1.000	12.97	2.240	29.050	218
T-225-2	2.250	1.485	.550	14.56	1.508	21.956	120
T-225A-2	2.250	1.250	1.000	14.56	2.730	39.749	215
T-300-2	3.058	1.925	.500	19.83	1.810	35.892	114
T-300A-2	3.048	1.925	1.000	19.83	3.580	70.991	228
T-400-2	4.000	2.250	.650	24.93	3.660	91.244	180
T-400A-2	4.000	2.250	1.300	24.93	7.432	185.250	360
T-520-2	5.200	3.080	.800	33.16	5.460	181.000	207

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MATERIAL 3 -- Permeability 35, Freq. Range 0.05 MHz to 0.5 MHz, Color - Gray

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-12-3	.125	.062	.050	.74	.010	.007	60
T-16-3	.160	.078	.060	.95	.016	.015	61
T-20-3	.200	.088	.070	1.15	.025	.029	76
T-25-3	.255	.120	.096	1.50	.042	.063	100
T-30-3	.307	.151	.128	.183	.065	.119	140
T-37-3	.375	.205	.128	2.32	.070	.162	120
T-44-3	.440	.229	.159	2.67	.107	.286	180
T-50-3	.500	.303	.190	3.03	.121	.367	175
T-68-3	.690	.370	.190	4.24	.196	.831	195
T-80-3	.795	.495	.250	5.15	.242	1.246	180
T-94-3	.942	.560	.312	6.00	.385	2.310	248
T-106-3	1.060	.570	.437	6.50	.690	4.485	450
T-130-3	1.300	.780	.437	8.29	.730	6.052	350
T-157-3	1.570	.950	.570	10.05	1.140	11.457	420
T-184-3	1.840	.950	.710	11.12	2.040	22.685	720
T-200-3	2.000	1.250	.550	12.97	1.330	17.250	425
T-200A-3	2.000	1.250	1.000	12.97	2.240	29.050	460
T-225-3	2.250	1.405	.550	14.56	1.508	21.956	425

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MATERIAL 6-- Permeability 8, Freq. Range 10 MHz to 50 MHz, Color - Yellow

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-12-6	.125	.062	.050	.74	.010	.007	17
T-16-6	.160	.078	.060	.95	.016	.015	19
T-20-6	.200	.088	.070	1.15	.025	.029	22
T-25-6	.255	.120	.096	1.50	.042	.063	27
T-30-6	.307	.151	.128	.183	.065	.119	36
T-37-6	.375	.205	.128	2.32	.070	.162	30
T-44-6	.440	.229	.159	2.67	.107	.286	42
T-50-6	.500	.303	.190	3.03	.121	.367	46
T-68-6	.690	.370	.190	4.24	.196	.831	47
T-80-6	.795	.495	.250	5.15	.242	1.246	45
T-94-6	.942	.560	.312	6.00	.385	2.310	70
T-106-6	1.060	.570	.437	6.50	.690	4.485	116
T-130-6	1.300	.780	.437	8.29	.730	6.052	96
T-157-6	1.570	.950	.570	10.05	1.140	11.457	115
T-184-6	1.840	.950	.710	11.12	2.040	22.685	195
T-200-6	2.000	1.250	.550	12.97	1.330	17.250	100
T-200A-6	2.000	1.250	1.000	12.97	2.240	29.050	180
T-225-6	2.250	1.405	.550	14.56	1.508	21.956	100

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MATERIAL 7 -- Permeability 9, Freq. Range 3 MHz to 35 MHz, Color - White

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-25-7	.255	.120	.096	1.50	.042	.063	29
T-37-7	.375	.205	.128	2.32	.070	.162	32
T-50-7	.500	.303	.190	3.03	.121	.367	43
T-68-7	.690	.370	.190	4.24	.196	.831	52

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MATERIAL 10-- Permeability 6, Freq. Range 30 MHz to 100 MHz, Color - Black

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-12-10	.125	.062	.050	.74	.010	.007	12
T-16-10	.160	.078	.060	.95	.016	.015	13
T-20-10	.200	.088	.070	1.15	.025	.029	16
T-25-10	.255	.120	.096	1.50	.042	.063	19
T-30-10	.307	.151	.128	.183	.065	.119	25
T-37-10	.375	.205	.128	2.32	.070	.162	25
T-44-10	.440	.229	.159	2.67	.107	.286	33
T-50-10	.500	.303	.190	3.03	.121	.367	31
T-68-10	.690	.370	.190	4.24	.196	.831	32
T-80-10	.795	.495	.250	5.15	.242	1.246	32
T-94-10	.942	.560	.312	6.00	.385	2.310	58

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MATERIAL 12-- Permeability 4, Freq. Range 50 MHz to 200 MHz, Color - Green & White

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-12-12	.125	.062	.050	.74	.010	.007	7.5
T-16-12	.160	.078	.060	.95	.016	.015	8.0
T-20-12	.200	.088	.070	1.15	.025	.029	10
T-25-12	.255	.120	.096	1.50	.042	.063	12.0
T-30-12	.307	.151	.128	.183	.065	.119	16.0
T-37-12	.375	.205	.128	2.32	.070	.162	15.0
T-44-12	.440	.229	.159	2.67	.107	.286	18.5
T-50-12	.500	.303	.190	3.03	.121	.367	18.0
T-68-12	.690	.370	.190	4.24	.196	.831	21.0
T-80-12	.795	.495	.250	5.15	.242	1.246	22.0
T-94-12	.942	.560	.312	6.00	.385	2.310	32.0

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MATERIAL 15-- Permeability 25, Freq. Range 0.1 MHz to 2.0 MHz, Color - Red & White

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-12-15	.125	.062	.050	.74	.010	.007	50
T-16-15	.160	.078	.060	.95	.016	.015	55
T-20-15	.200	.088	.070	1.15	.025	.029	65
T-25-15	.255	.120	.096	1.50	.042	.063	85
T-30-15	.307	.151	.128	.183	.065	.119	93
T-37-15	.375	.205	.128	2.32	.070	.162	90
T-44-15	.440	.229	.159	2.67	.107	.286	160
T-50-15	.500	.303	.190	3.03	.121	.367	135
T-68-15	.690	.370	.190	4.24	.196	.831	180
T-80-15	.795	.495	.250	5.15	.242	1.246	170
T-94-15	.942	.560	.312	6.00	.385	2.310	200
T-106-15	1.060	.570	.437	6.50	.690	4.485	345
T-130-15	1.300	.780	.437	8.29	.730	6.052	250
T-157-15	1.570	.950	.570	10.05	1.140	11.457	360

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MATERIAL 17-- Permeability 4, Freq. Range 20 MHz to 200 MHz, Color - Blue & Yellow

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T-12-17	.125	.062	.050	.74	.010	.007	7.5
T-16-17	.160	.078	.060	.95	.016	.015	8.0
T-20-17	.200	.088	.070	1.15	.025	.029	10.0
T-25-17	.255	.120	.096	1.50	.042	.063	12.0
T-30-17	.307	.151	.128	.183	.065	.119	16.0
T-37-17	.375	.205	.128	2.32	.070	.162	15.0
T-44-17	.440	.229	.159	2.67	.107	.286	18.5
T-50-17	.500	.303	.190	3.03	.121	.367	18.0
T-68-17	.690	.370	.190	4.24	.196	.831	21.0
T-80-17	.795	.495	.250	5.15	.242	1.246	32.0
T-90-17	.942	.560	.312	6.00	.385	2.310	32.0

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WIRES

SWG to mm conversion chart

SWG #	Diameter (mm)	Area (mm2)
7/0	12.700	126.6769
6/0	11.786	109.0921
5/0	10.973	94.5638
4/0	10.160	81.0732
3/0	9.449	70.1202
2/0	8.839	61.3643
0	8.230	53.1921
1	7.620	45.6037
2	7.010	38.5989
3	6.401	32.1780
4	5.893	27.2730
5	5.385	22.7735
6	4.877	18.6793
7	4.470	15.6958
8	4.064	12.9717
9	3.658	10.5071
10	3.251	8.3019
11	2.946	6.8183
12	2.642	5.4805
13	2.337	4.2888
14	2.032	3.2429
15	1.829	2.6268
16	1.626	2.0755
17	1.422	1.5890
18	1.219	1.1675
19	1.016	0.8107
20	0.914	0.6567
21	0.813	0.5189
22	0.711	0.3973
23	0.610	0.2919
24	0.559	0.2452
25	0.5080	0.2027
26	0.4572	0.1642
27	0.4166	0.1363
28	0.3759	0.1110
29	0.3454	0.0937
30	0.3150	0.0779
31	0.2946	0.0682
32	0.2743	0.0591
33	0.2540	0.0507
34	0.2337	0.0429
35	0.2134	0.0358
36	0.1930	0.0293
37	0.1727	0.0234
38	0.1524	0.0182
39	0.1321	0.0137
40	0.1219	0.0117
41	0.1118	0.0098
42	0.1016	0.0081
43	0.0914	0.0066
44	0.0813	0.0052
45	0.0711	0.0040
46	0.0610	0.0029
47	0.0508	0.0020
48	0.0406	0.0013
49	0.0305	0.0007
50	0.0254	0.0005

screws

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