EI Metric Bobbins

Materials	PA66 Nylon, plastic, PET, PBT etc
Color	Black, white, Ivory and customized
OEM	New mold acceptable
Size	Our general size, and customized
Average Efficiency	Meets energy star level VI & COC V5 Tier2(2016)
Standby Power	0.075W max
Temperature	Operating: 0 ~ 40 °C; Storage: -20 ~ 85 °C

EI Metric Bobbins are a type of transformer bobbin commonly used in electronic devices and electrical systems. They are named after their shape, which resembles the letters “EI.” These bobbins are designed to support and protect the coils of specific-sized transformers, ensuring stability and reliability in circuits. EI Bobbins are typically made of insulating materials to prevent short circuits and failures between electrical components. They play a crucial role in facilitating stable and reliable power transmission in various applications within the electronics and electrical industries.

		A	B	C	D	E	H
EI-22	5*5	5.3	5.1	16.6	16.4	19	17.5
	5*6	5.2	6	16.6	11.4	13	17.7
EI-28	8*11	8.1	11	19.4	14.8	16.7	25.1
	8*11	8.3	11.3	22.7	12.9	15.1	25.5
	8*11.5	8.1	11.8	19.5	14.7	16.6	25
	8*12.1	8.3	12.1	19.6	15	16.6	25.1
	8*15	8.4	15.1	19.3	14.8	16.6	28.8
	8*18	8.3	18	19.4	14.6	16.4	31
EI-35	10*10	10.1	10.4	24	17.3	19.7	25
	10*13	10.2	13.7	23.8	16.8	19	29.3
	10*14	10.2	14	23.9	16.9	19	29.3
	10*15	10.2	15.2	24.9	12	19	30.7
	10*20	10.2	20.3	24.9	16.9	19.1	36
EI-41	13*13	13.5	13.1	28.8	18.9	20.7	29.5
	13*15	13.3	15.3	28.7	19.1	20.7	33.6
	13*17	13.3	17.3	28.3	18.2	20.5	35.2
	13*20	13.3	20	27.5	18.2	20.5	37.1
	13*25	13.3	25.3	28.4	18.3	20.5	43.9
E-I48	16*16-1	16.3	16.3	31.4	21.4	23.3	35
	16*16-2	16.4	16.1	31.4	21.0	23.2	34.5
	16*16-3	16.5	16.5	42.3	21.3	25.3	41.6
	16* 18	16.3	18.3	31.4	21.3	23.4	37
	16*20	16.5	20.7	31.6	21.4	25	38.8
	16*24-1	16.4	24	31.3	20.6	24	43.8
	16*24-2	16.5	24.1	31.6	21.1	23.5	44
	16*28	16.8	28.4	31.0	21.0	23.5	45.1
	16*31	16.7	31.2	31.1	21.2	23.4	47.2
	16*30	16.9	30.3	31.6	21.0	23.6	49.6
	16*35	16.7	35.3	31.4	21.3	23.7	54.7
EI-57	19*18(T)	19.7	18.4	37.3	25.8	29.2	40.4
	19*20	19.5	20.3	37.2	25.6	28.0	44
	19*25-1	19.6	25.3	37	25.7	28.0	48.6
	19*25-2	19.8	25.1	37.1	25.8	27.8	48.5
	19*28-1	19.5	28.3	37.7	25.6	28.3	53.8
	19*28-2	19.5	28.5	37.2	25.5	28.2	50.1
	19*30	19.8	30.0	37.5	25.5	28.1	53.9
	19*35	19.5	35.3	32.8	25.1	28	57.4
	19*38	19.8	38.2	37.3	25.5	27.8	60.3
EI-66	22*18-1	22.5	18.2	43.1	29.9	32.5	42.9
	22*18-2	22.3	18.2	43.0	29.7	32.5	36.8
	22*23	22.5	23.0	43.5	30.1	32.8	46.2
	22*25-1	22.5	25.2	42.8	30.1	32.6	48.6
	22*25-2	22.4	25.1	42.4	30.1	32.5	48.5
	22*28	22.5	27.8	43	30.1	32.1	51
	22*30	22.5	30.3	43.2	29.6	32.3	56.6
	22*33	22.6	33.4	43.8	30.4	32.8	60.5
	22*35	22.6	35.3	43.2	29.5	32.3	61.5
	22*36	22.6	36.3	43.2	29.5	32.3	61.5
	22*38	22.5	38.4	43.6	29.8	32.6	62.2
	22*40	22.5	40.3	43.3	30	32.5	66.5
	22*44	22.5	44.3	43.5	28.7	32.4	68.8
EI-76.2	26*26	26.2	26.3	50.1	35.5	38	54.7
	26*28	26.2	28.3	49.9	34.0	37.6	55.7
	26*30	26.2	30.3	49.9	33.4	37.5	57.4
	26*32	26.3	32.3	50.3	33.6	37.5	60.0
	26*35	26.3	35.7	49.6	34.6	37.3	64.5
	26*40	26.3	40.1	50.1	33.1	37.6	67.3
	26*42	26.2	42.2	50.3	33.9	37.2	71.0
	26*45	26.3	45.0	50.2	34.4	37.7	72.2
	26*50	26.2	50.1	50.2	33.9	37.2	77.8
	26*55	26.3	55	50.5	33.5	37.2	82.7
EI-84	28*30	29.1	29.5	54.2	37.1	41.5	59.2
	28*35	29.1	35.3	54.3	37.5	41.5	64.7
	28*38	29.3	38.3	56.1	38.1	41.9	69.5
	28*40	29.1	40.3	54.5	37.4	41.5	69.8
	28*45	28.9	45.0	54.6	38.1	41.7	75.0
EI-85.8	28.6*30	29.1	29.5	54.2	37.1	41.5	59.2
	28.6*30(S)	28.8	31.0	55.6	31.5	35.9	62.2
	28.6*33	29.5	33.2	56.5	39.1	42.1	65
	28.6*35(F)	29.2	35.1	54.6	38.1	41.6	65.1
	28.6*38	29.3	38.3	56.1	38.1	41.9	69.5
	28.6*40	29.1	40.3	54.5	37.4	41.5	69.8
	28.6*45	28.9	45	54.6	38.1	41.7	75
	28.6*50	30.1	50.1	57.1	39.1	42.4	82.8
	28.6*55	29.2	55.1	55.9	38.5	42.4	86.2
	28.6*60	29.1	60	55.5	38.5	42.2	91.1
EI-96	32*28	32.5	28.3	63.1	44.7	47.9	62.7
	32*33	33	33.1	63.7	43.9	47.6	69.3
	32*35	32.9	35.1	63.4	44.5	48.9	70
	32*40	32.5	40	63.5	44.3	47.5	75.2
	32*45	33.2	45.5	63.6	44.5	47.8	82
	32*50	33.2	50.2	63.5	44.5	47.6	87
	32*55	33	55.3	63.9	43	47.5	91.1
	32*60	33.1	60.5	63.1	44.2	47.8	96.8
	32*60 JBK5	32.8	60.4	61.9	44.3	69.5	94
	32*65	32.9	65	63.1	43.5	47.5	101.5
	32*70	33.2	70.5	63.9	43.8	47.8	107.2
	32*75	32.5	76	63	44.1	47.3	112.3
EI-105	35*35-1	35.8	35.2	69.2	48.5	52.2	74.5
	35*35-2	36	35	68.8	48.1	52.0	76.8
	35*40	36	40.4	69	48.3	51.7	79.5
	35*45	36	45.1	69.6	47.6	52	84.5
	35*50	35.7	50.2	69.8	48.5	52.7	89.6
	35*55	35.8	55	69.2	47.7	52.2	94.2
	35*60	36.1	60.3	63.8	48.9	52.2	99.5
EI-114	38*40	39	40.1	75.5	51.5	56.3	84.6
	38*45	38.5	45.1	74.1	52.4	56.6	89.5
	35*50	38.8	50	75.2	51.1	56.3	94.3
	38*52	39	52.1	75	51.8	56.5	94.4
	38*55	39.5	55.3	75.4	52.5	56.6	100.5
	38*60	39	60	75	51.2	56.2	104
	38*65	39.3	65	75.2	52.1	56.6	109.3
	38*70	39.2	70	75.5	52	56.5	114.5
	38*75	38.7	75.5	75	52.3	56.3	120
	38*80	38.5	80	70.5	51.9	56.5	124.3
EI-120	40*40	40.8	40.4	78.7	55.6	59.4	84.7
	40*45	40.6	45.1	78.7	55.6	60	89.5
	40*50	40.6	50.1	79.1	55.3	59.5	94.6
	40*55	40.8	55.3	78.9	55.0	59.2	99.7
	40*60	40.8	60.3	78.8	55.8	59.5	104.6
	40*67	40.8	67.4	78.9	56.0	59.6	111.5
	40*75	41.1	75.3	79	55.6	59.5	119.5
	40*80	41	80	79	55.9	59.4	124.4
EI-133.2	44*45	45.5	45.9	87.8	61.8	65.7	103
	44*50	46.1	50.5	87	62.7	65.8	100
	44*55	45.1	55.3	87.4	61.2	65.6	105.4
	44*60	44.7	60.3	87.1	60.9	65.5	110
	44*64	45.8	64.2	87.9	61.2	65.7	113.5
	44*65	45.4	64.6	86.6	61.4	66.5	112.7
	44*70	45.8	70.2	86.9	62	66.5	118.5
	44*75	45.3	75.1	87.5	61.4	65.8	125.3
	44*80	45.8	80.1	86.9	61	65.7	128.2
	44*100	45.8	100.2	88.5	59.7	65.7	149
EI-150	50*40	50.9	40.5	98.9	69.5	74.5	94.5
	50*45	51.1	45.5	99.0	69.4	74.5	99.9
	50*50-1	51.5	50.5	99.1	70	74.5	104.5
	50*50-2	51.2	50.0	98.5	70	74.5	105
	50*55	50.9	55.4	98.8	69.7	74.4	109.8
	50*60	51.6	60.3	98.8	70.36	81.66	115.4
	50*65	50.6	65.2	98.9	69.8	74.4	119
	50*70	51.2	70	99.3	69.5	74.8	124.5
	50*75	52.9	75.4	99	70.36	81.66	132.3
	50*80	52.8	80.1	99	70.36	81.66	137.2
	50*85	51.1	85.5	99.1	68.7	74.3	139.5
	50*90	51.1	90.1	99.2	70.36	81.66	144.94
	50*100	52.8	100.1	99	70.5	81.8	157.2
	50*120	51.6	120.3	99.2	70.36	81.66	177.7
EI-152	50.8*50	52.3	50.5	98.6	69.8	74.7	104.5
	50.8*70	51.2	70.0	99.3	69.5	74.8	124.5
	50.8*75	52.9	75.4	99	70.36	81.66	132.3
	50.8*80	52.8	80.1	99	70.36	91.66	137.2
	50.8*100	54.9	100.3	107.3	75	80.3	160
EI-162	54*70	55.4	70	107.1	76.7	80.7	130
	54*75	55.2	75	107.2	75.6	80.3	135.1
	54*90	54.6	90	107.1	74.6	80.5	150.1
	54*100	54.9	100.3	107.3	75	80.3	160
EI-168	56*65	57.2	65.6	110.7	78.6	83.3	127.5
	56*80	57.3	80.2	110	76.1	83.1	143.8
	56*90	57.1	90	110.6	78.2	83.2	150.1
EI-180	60*40	61.2	41.6	118.2	82.7	88.3	104.7
	60*60	61.2	61.6	118	82.3	87.9	124.6
	60*70	61	70	119	83.7	89.2	134.5
	60*80	61.3	80.1	119.1	83.1	89.3	144.7
	60*90	61.2	90.1	119	83.3	89.2	154.4
	60*100	60.7	100.4	118.9	84.3	88.9	165
EI-192	64*55	65.8	55.6	125.1	91.1	102.4	126.8
	64*70	65.8	70.1	126.8	91.1	102.4	140.5
	64*80	65.7	80.2	127	89.7	95.2	149.6
	64*90	65.8	90.2	125.7	90.3	102.47	159.44
	64*100	65.8	100.3	126.7	89.5	95	169.5
	64*110	65.7	110.5	126.7	90.4	102.8	179.5
	64*120	66.5	120.5	126.8	87.6	95	189.6
	64*130	65	130.5	126.8	90.8	95	197.5
EI-228	76*100	77.3	100.6	146.2	106.7	113.1	175.8
	76*110	77.6	110.5	150.1	106.7	113.1	189.2