Usha Amorphous Metals Ltd.

Nano Crystalline Cores (Standard Core Size Table and Ordering Info)

Nano Crystalline Low AL value Cores

AL @ 1 kHz, 5 Turns (and above); Tolerence ± 30 %

Part No.
Bare Dimention

(mm)

With Reinforcement

(mm)

lm

(mm)

Ac

(mm2)
Wa (mm2)
mFe

(g)
AL (micro H)

OD ID Height OD ID Height

UMNT-A0131005 12.50 9.50 5.00 14.40 7.90 6.80 34.56 6.00 70.88 1.50 9.2

UMNT-A0141005 13.90 9.50 5.00 15.80 7.90 6.80 36.76 8.80 70.88 2.35 12.6

UMNT-A0181305 18.40 12.70 5.00 20.80 10.80 6.90 48.85 11.40 126.68 4.04 12.3

UMNT-A0271705 27.30 16.50 5.00 29.50 14.80 6.80 68.80 21.60 213.82 10.77 16.6

UMNT-A0201308 20.10 12.70 8.00 22.10 11.00 9.80 51.52 23.68 126.68 8.85 24.3

UMNT-A0201310 20.10 12.70 10.00 22.10 11.00 11.80 51.52 29.60 126.68 11.06 30.3

UMNT-A0261910 25.60 19.10 10.00 27.80 17.00 12.30 70.21 26.00 286.52 13.24 19.5

UMNT-A0191510 # 19.00 15.00 10.00 21.20 13.00 12.30 53.41 16.00 176.71 6.20 15.8

UMNT-A0251610 # 25.00 16.00 10.00 27.70 13.70 12.60 64.40 36.00 201.06 16.81 29.5

UMNT-A0252010 # 25.00 20.00 10.00 27.70 17.70 12.60 70.69 20.00 314.16 10.25 14.9

UMNT-A0251615 # 25.00 16.00 15.00 27.70 13.70 17.60 64.40 54.00 201.06 25.21 44.3

UMNT-A0252015 # 25.00 20.00 15.00 27.70 17.70 17.60 70.69 30.00 314.16 15.37 22.4

UMNT-A0251620 # 25.00 16.00 20.00 27.70 13.70 22.60 64.40 72.00 201.06 33.62 59.0

UMNT-A0252020 # 25.00 20.00 20.00 27.70 17.70 22.60 70.69 40.00 314.16 20.50 29.9

UMNT-A0302010 # 30.00 20.00 10.00 32.70 17.60 12.70 78.54 40.00 314.16 22.78 25.6

UMNT-A0302015 # 30.00 20.00 15.00 32.70 17.60 17.70 78.54 60.00 314.16 34.16 38.4

UMNT-A0302020 # 30.00 20.00 20.00 32.70 17.60 22.70 78.54 80.00 314.16 45.55 51.2

UMNT-A0403210 # 40.00 32.00 10.00 43.30 28.70 13.60 113.10 32.00 804.25 26.24 13.5

UMNT-A0403215 # 40.00 32.00 15.00 43.30 28.70 18.60 113.10 48.00 804.25 39.36 20.3

UMNT-A0403220 # 40.00 32.00 20.00 43.30 28.70 23.60 113.10 64.00 804.25 52.48 27.0

UMNT-A0402510 # 40.00 25.00 10.00 43.30 21.70 13.60 102.10 60.00 490.87 44.41 28.1

UMNT-A0402515 # 40.00 25.00 15.00 43.30 21.70 18.60 102.10 90.00 490.87 66.62 42.1

UMNT-A0402520 # 40.00 25.00 20.00 43.30 21.70 23.60 102.10 120.00 490.87 88.83 56.1

UMNT-A0504015 # 50.00 40.00 15.00 53.40 36.60 18.70 141.37 60.00 1256.64 61.50 11.7

UMNT-A0504020 # 50.00 40.00 20.00 53.40 36.60 23.70 141.37 80.00 1256.64 82.00 15.5

UMNT-A0504025 # 50.00 40.00 25.00 53.40 36.60 28.70 141.37 100.00 1256.64 102.49 19.4

UMNT-A0645020 # 64.00 50.00 20.00 67.90 46.60 23.70 179.07 112.00 1963.50 145.41 17.2

UMNT-A0645025 # 64.00 50.00 25.00 67.90 46.60 28.70 179.07 140.00 1963.50 181.76 21.5

UMNT-A0645030 # 64.00 50.00 30.00 67.90 46.60 33.70 179.07 168.00 1963.50 218.11 25.8

UMNT-A0755020 # 75.00 50.00 20.00 79.10 46.40 23.90 196.35 200.00 1963.50 284.71 25.5

UMNT-A0755025 # 75.00 50.00 25.00 79.10 46.40 28.90 196.35 250.00 1963.50 355.88 31.9

UMNT-A0755030 # 75.00 50.00 30.00 79.10 46.40 33.90 196.35 300.00 1963.50 427.06 38.3

UMNT-A0805020 # 80.00 50.00 20.00 85.70 44.80 25.60 204.20 240.00 1963.50 355.31 29.5

UMNT-A0805025 # 80.00 50.00 25.00 85.70 44.80 30.60 204.20 300.00 1963.50 444.14 36.8

UMNT-A0805030 # 80.00 50.00 30.00 85.70 44.80 35.60 204.20 360.00 1963.50 532.97 44.2

UMNT-A0906010 # 90.00 60.00 10.00 95.70 54.80 15.60 235.62 120.00 2827.43 204.99 11.6

UMNT-A0906020 # 90.00 60.00 20.00 95.70 54.80 25.60 235.62 240.00 2827.43 409.98 23.1

UMNT-A0906025 # 90.00 60.00 25.00 95.70 54.80 30.60 235.62 300.00 2827.43 512.47 28.9

UMNT-A0906030 # 90.00 60.00 30.00 95.70 54.80 35.60 235.62 360.00 2827.43 614.97 34.7

UMNT-A1008020 # 100.00 80.00 20.00 105.50 75.00 25.40 282.74 160.00 5026.55 327.98 12.8

UMNT-A1008025 # 100.00 80.00 25.00 105.50 75.00 30.40 282.74 200.00 5026.55 409.98 16.0

UMNT-A1008030 # 100.00 80.00 30.00 105.50 75.00 35.40 282.74 240.00 5026.55 491.97 19.3

UMNT-A1037520 # 103.00 75.00 20.00 108.50 70.00 25.40 279.60 224.00 4417.86 454.07 18.2

UMNT-A1037525 # 103.00 75.00 25.00 108.50 70.00 30.40 279.60 280.00 4417.86 567.59 22.7

UMNT-A1037530 # 103.00 75.00 30.00 108.50 70.00 35.40 279.60 336.00 4417.86 681.11 27.3

# EPOXY TAPE

• All specifications are subject to change without notice.

Nano Crystalline High AL value Cores

AL @ 1 kHz, 5 Turns (and above); Tolerence ± 30 %

Part No.
Bare Dimention

(mm)

With Reinforcement

(mm)

lm

(mm)

Ac

(mm2)
Wa (mm2)
mFe

(g)
AL (micro H)

OD ID Height OD ID Height

UMNT-V0131005 12.50 9.50 5.00 14.40 7.90 6.80 34.56 6.00 70.88 1.50 20.6

UMNT-V0141005 13.90 9.50 5.00 15.80 7.90 6.80 36.76 8.80 70.88 2.35 28.4

UMNT-V0141008 13.90 9.50 8.00 15.80 7.90 9.80 36.76 14.08 70.88 3.75 45.5

UMNT-V0181305 18.40 12.70 5.00 20.80 10.80 6.80 48.85 11.40 126.68 4.04 27.7

UMNT-V0271705 27.30 16.50 5.00 29.50 14.80 6.80 68.80 21.60 213.82 10.77 37.3

UMNT-V0201308 20.10 12.70 8.00 22.10 11.00 6.80 51.52 23.68 126.68 8.85 54.6

UMNT-V0201310 20.10 12.70 10.00 22.10 11.00 6.80 51.52 29.60 126.68 11.06 68.2

UMNT-V0261910 25.60 19.10 10.00 27.80 17.00 6.80 70.21 26.00 286.52 13.24 44.0

UMNT-V0191510 # 19.00 15.00 10.00 21.20 13.00 6.80 53.41 16.00 176.71 6.20 35.6

UMNT-V0251610 # 25.00 16.00 10.00 27.70 13.70 6.80 64.40 36.00 201.06 16.81 66.4

UMNT-V0252008 # 25.00 20.00 8.00 27.70 17.70 10.60 70.69 16.00 314.16 8.20 26.88

UMNT-V0252010 # 25.00 20.00 10.00 27.70 17.70 6.80 70.69 20.00 314.16 10.25 33.6

UMNT-V0251615 # 25.00 16.00 15.00 27.70 13.70 6.80 64.40 54.00 201.06 25.21 99.6

UMNT-V0252015 # 25.00 20.00 15.00 27.70 17.70 6.80 70.69 30.00 314.16 15.37 50.4

UMNT-V0251620 # 25.00 16.00 20.00 27.70 13.70 6.80 64.40 72.00 201.06 33.62 132.8

UMNT-V0252020 # 25.00 20.00 20.00 27.70 17.70 6.80 70.69 40.00 314.16 20.50 67.2

UMNT-V0302010 # 30.00 20.00 10.00 32.70 17.60 6.80 78.54 40.00 314.16 22.78 57.6

UMNT-V0302015 # 30.00 20.00 15.00 32.70 17.60 6.80 78.54 60.00 314.16 34.16 86.4

UMNT-V0302020 # 30.00 20.00 20.00 32.70 17.60 6.80 78.54 80.00 314.16 45.55 115.2

UMNT-V0403210 # 40.00 32.00 10.00 43.30 28.70 6.80 113.10 32.00 804.25 26.24 30.4

UMNT-V0403215 # 40.00 32.00 15.00 43.30 28.70 6.80 113.10 48.00 804.25 39.36 45.6

UMNT-V0403220 # 40.00 32.00 20.00 43.30 28.70 6.80 113.10 64.00 804.25 52.48 60.8

UMNT-V0402510 # 40.00 25.00 10.00 43.30 21.70 6.80 102.10 60.00 490.87 44.41 63.1

UMNT-V0402515 # 40.00 25.00 15.00 43.30 21.70 6.80 102.10 90.00 490.87 66.62 94.7

UMNT-V0402520 # 40.00 25.00 20.00 43.30 21.70 6.80 102.10 120.00 490.87 88.83 126.3

UMNT-V0504015 # 50.00 40.00 15.00 53.40 36.60 6.80 141.37 60.00 1256.64 61.50 33.9

UMNT-V0504020 # 50.00 40.00 20.00 53.40 36.60 6.80 141.37 80.00 1256.64 82.00 45.3

UMNT-V0504025 # 50.00 40.00 25.00 53.40 36.60 6.80 141.37 100.00 1256.64 102.49 56.6

UMNT-V0645020 # 64.00 50.00 20.00 67.90 46.60 6.80 179.07 112.00 1963.50 145.41 48.5

UMNT-V0645025 # 64.00 50.00 25.00 67.90 46.60 6.80 179.07 140.00 1963.50 181.76 60.7

UMNT-V0645030 # 64.00 50.00 30.00 67.90 46.60 6.80 179.07 168.00 1963.50 218.11 72.8

UMNT-V0755020 # 75.00 50.00 20.00 79.10 46.40 6.80 196.35 200.00 1963.50 284.71 76.6

UMNT-V0755025 # 75.00 50.00 25.00 79.10 46.40 6.80 196.35 250.00 1963.50 355.88 95.8

UMNT-V0755030 # 75.00 50.00 30.00 79.10 46.40 6.80 196.35 300.00 1963.50 427.06 114.9

UMNT-V0805020 # 80.00 50.00 20.00 85.70 44.80 6.80 204.20 240.00 1963.50 355.31 88.4

UMNT-V0805025 # 80.00 50.00 25.00 85.70 44.80 6.80 204.20 300.00 1963.50 444.14 110.5

UMNT-V0805030 # 80.00 50.00 30.00 85.70 44.80 6.80 204.20 360.00 1963.50 532.97 132.6

UMNT-V0906010 # 90.00 60.00 10.00 95.70 54.80 6.80 235.62 120.00 2827.43 204.99 36.5

UMNT-V0906020 # 90.00 60.00 20.00 95.70 54.80 6.80 235.62 240.00 2827.43 409.98 73.0

UMNT-V0906025 # 90.00 60.00 25.00 95.70 54.80 6.80 235.62 300.00 2827.43 512.47 91.2

UMNT-V0906030 # 90.00 60.00 30.00 95.70 54.80 6.80 235.62 360.00 2827.43 614.97 109.4

UMNT-V1008020 # 100.00 80.00 20.00 105.50 75.00 6.80 282.74 160.00 5026.55 327.98 40.5

UMNT-V1008025 # 100.00 80.00 25.00 105.50 75.00 6.80 282.74 200.00 5026.55 409.98 50.7

UMNT-V1008030 # 100.00 80.00 30.00 105.50 75.00 6.80 282.74 240.00 5026.55 491.97 60.8

UMNT-V1037520 # 103.00 75.00 20.00 108.50 70.00 6.80 279.60 224.00 4417.86 454.07 52.6

UMNT-V1037525 # 103.00 75.00 25.00 108.50 70.00 6.80 279.60 280.00 4417.86 567.59 65.8

UMNT-V1037530 # 103.00 75.00 30.00 108.50 70.00 6.80 279.60 336.00 4417.86 681.11 78.9

# EPOXY TAPE

• All specifications are subject to change without notice.

Physical and Magnetic Properties

Application and Benefits

Transformer Cores (DT)

Toroidal Choke Cores

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Part No.	Bare Dimention (mm)			With Reinforcement (mm)			lm (mm)	Ac (mm2)	Wa (mm2)	mFe (g)	AL (micro H)
	OD	ID	Height	OD	ID	Height
UMNT-A0131005	12.50	9.50	5.00	14.40	7.90	6.80	34.56	6.00	70.88	1.50	9.2
UMNT-A0141005	13.90	9.50	5.00	15.80	7.90	6.80	36.76	8.80	70.88	2.35	12.6
UMNT-A0181305	18.40	12.70	5.00	20.80	10.80	6.90	48.85	11.40	126.68	4.04	12.3
UMNT-A0271705	27.30	16.50	5.00	29.50	14.80	6.80	68.80	21.60	213.82	10.77	16.6
UMNT-A0201308	20.10	12.70	8.00	22.10	11.00	9.80	51.52	23.68	126.68	8.85	24.3
UMNT-A0201310	20.10	12.70	10.00	22.10	11.00	11.80	51.52	29.60	126.68	11.06	30.3
UMNT-A0261910	25.60	19.10	10.00	27.80	17.00	12.30	70.21	26.00	286.52	13.24	19.5
UMNT-A0191510 #	19.00	15.00	10.00	21.20	13.00	12.30	53.41	16.00	176.71	6.20	15.8
UMNT-A0251610 #	25.00	16.00	10.00	27.70	13.70	12.60	64.40	36.00	201.06	16.81	29.5
UMNT-A0252010 #	25.00	20.00	10.00	27.70	17.70	12.60	70.69	20.00	314.16	10.25	14.9
UMNT-A0251615 #	25.00	16.00	15.00	27.70	13.70	17.60	64.40	54.00	201.06	25.21	44.3
UMNT-A0252015 #	25.00	20.00	15.00	27.70	17.70	17.60	70.69	30.00	314.16	15.37	22.4
UMNT-A0251620 #	25.00	16.00	20.00	27.70	13.70	22.60	64.40	72.00	201.06	33.62	59.0
UMNT-A0252020 #	25.00	20.00	20.00	27.70	17.70	22.60	70.69	40.00	314.16	20.50	29.9
UMNT-A0302010 #	30.00	20.00	10.00	32.70	17.60	12.70	78.54	40.00	314.16	22.78	25.6
UMNT-A0302015 #	30.00	20.00	15.00	32.70	17.60	17.70	78.54	60.00	314.16	34.16	38.4
UMNT-A0302020 #	30.00	20.00	20.00	32.70	17.60	22.70	78.54	80.00	314.16	45.55	51.2
UMNT-A0403210 #	40.00	32.00	10.00	43.30	28.70	13.60	113.10	32.00	804.25	26.24	13.5
UMNT-A0403215 #	40.00	32.00	15.00	43.30	28.70	18.60	113.10	48.00	804.25	39.36	20.3
UMNT-A0403220 #	40.00	32.00	20.00	43.30	28.70	23.60	113.10	64.00	804.25	52.48	27.0
UMNT-A0402510 #	40.00	25.00	10.00	43.30	21.70	13.60	102.10	60.00	490.87	44.41	28.1
UMNT-A0402515 #	40.00	25.00	15.00	43.30	21.70	18.60	102.10	90.00	490.87	66.62	42.1
UMNT-A0402520 #	40.00	25.00	20.00	43.30	21.70	23.60	102.10	120.00	490.87	88.83	56.1
UMNT-A0504015 #	50.00	40.00	15.00	53.40	36.60	18.70	141.37	60.00	1256.64	61.50	11.7
UMNT-A0504020 #	50.00	40.00	20.00	53.40	36.60	23.70	141.37	80.00	1256.64	82.00	15.5
UMNT-A0504025 #	50.00	40.00	25.00	53.40	36.60	28.70	141.37	100.00	1256.64	102.49	19.4
UMNT-A0645020 #	64.00	50.00	20.00	67.90	46.60	23.70	179.07	112.00	1963.50	145.41	17.2
UMNT-A0645025 #	64.00	50.00	25.00	67.90	46.60	28.70	179.07	140.00	1963.50	181.76	21.5
UMNT-A0645030 #	64.00	50.00	30.00	67.90	46.60	33.70	179.07	168.00	1963.50	218.11	25.8
UMNT-A0755020 #	75.00	50.00	20.00	79.10	46.40	23.90	196.35	200.00	1963.50	284.71	25.5
UMNT-A0755025 #	75.00	50.00	25.00	79.10	46.40	28.90	196.35	250.00	1963.50	355.88	31.9
UMNT-A0755030 #	75.00	50.00	30.00	79.10	46.40	33.90	196.35	300.00	1963.50	427.06	38.3
UMNT-A0805020 #	80.00	50.00	20.00	85.70	44.80	25.60	204.20	240.00	1963.50	355.31	29.5
UMNT-A0805025 #	80.00	50.00	25.00	85.70	44.80	30.60	204.20	300.00	1963.50	444.14	36.8
UMNT-A0805030 #	80.00	50.00	30.00	85.70	44.80	35.60	204.20	360.00	1963.50	532.97	44.2
UMNT-A0906010 #	90.00	60.00	10.00	95.70	54.80	15.60	235.62	120.00	2827.43	204.99	11.6
UMNT-A0906020 #	90.00	60.00	20.00	95.70	54.80	25.60	235.62	240.00	2827.43	409.98	23.1
UMNT-A0906025 #	90.00	60.00	25.00	95.70	54.80	30.60	235.62	300.00	2827.43	512.47	28.9
UMNT-A0906030 #	90.00	60.00	30.00	95.70	54.80	35.60	235.62	360.00	2827.43	614.97	34.7
UMNT-A1008020 #	100.00	80.00	20.00	105.50	75.00	25.40	282.74	160.00	5026.55	327.98	12.8
UMNT-A1008025 #	100.00	80.00	25.00	105.50	75.00	30.40	282.74	200.00	5026.55	409.98	16.0
UMNT-A1008030 #	100.00	80.00	30.00	105.50	75.00	35.40	282.74	240.00	5026.55	491.97	19.3
UMNT-A1037520 #	103.00	75.00	20.00	108.50	70.00	25.40	279.60	224.00	4417.86	454.07	18.2
UMNT-A1037525 #	103.00	75.00	25.00	108.50	70.00	30.40	279.60	280.00	4417.86	567.59	22.7
UMNT-A1037530 #	103.00	75.00	30.00	108.50	70.00	35.40	279.60	336.00	4417.86	681.11	27.3
								# EPOXY TAPE
	• All specifications are subject to change without notice.