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CD31-105 Chip Inductor

CD31-105 chip inductor, also known as SMT power inductor, has the advantages of small volume, thin type, high energy storage, low DC resistance, large output, high production efficiency, low price, automatic chip installation, better stability, mature production technology and perfect quality control system.

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Product Description

1. Product Introduction of CD31-105 Chip Inductor

The magnetic core of this product is made of high-quality nickel core magnetic materials from Taiwan and Japan. The magnetic core can withstand high current, low temperature coefficient and stable characteristics. The enamelled copper wire can withstand the 180℃high-temperature wire to ensure the quality of the product.

The production process adopts full automation, fast production speed and fast delivery time are our first advantages. Our high-quality CD31-105 chip inductor solves the problem of insufficient current power and space for customers, which is deeply loved by customers in China, Europe and America.

2. Product Parameter (Specification) of CD31-105 Chip Inductor

1. Five-ring pattern and size (SHAPE AND SIZE) (unit mm)

Five ring number	A	B	C	D ref
CD31	3.5±0.3	3.0±0.3	1.1±0.2	0.8
CD32	3.5±0.3	3.0±0.3	2.0±0.3	0.8
CD43	4.5±0.3	4.0±0.3	3.2±0.3	1.5
CD52	5.8±0.3	5.2±0.3	2.5±0.3	1.7
CD53	5.8±0.3	5.2±0.3	3.0±0.3	1.7
CD54	5.8±0.3	5.2±0.3	4.5±0.3	1.7
CD73	7.8±0.3	7.0±0.3	3.5±0.5	2.0
CD75	7.8±0.3	7.0±0.3	5.0±0.5	2.0
CD104	10.0±0.3	9.0±0.3	4.0±0.3	2.5
CD105	10.0±0.3	9.0±0.3	5.4±0.3	2.5
CD108	10.0±0.3	9.0±0.3	8.0±0.3	2.5
CD137	13.0±0.3	12.0±0.3	7.0±0.3	3.0
CD2017	20.0±0.3	19.0±0.3	17.0±0.3	3.0
2. Five ring number representation
ＣＤ７５　－　221 　 K (1) (2) (3) 　 (4)
(1). Number (Type): CD31/32/43/52/53/54/73/75/104/105 (CD)
(2). Size: According to size (75)
(3). Nominal inductance (Inductance): "221" means 220uH (Example: "221"for 220uH) (221)
(4). Inductance tolerance (Tolerance): "M: ±20%, "K": ±10%, "J": ±5% (K)

CD31 series features
Five ring number Type	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	(KHz).	(Ω) MAX.	A MAX
CD31-2R2M	2.2	100KHZ	0.24	1.20
CD31-3R3M	3.3	100KHZ	0.27	1.08
CD31-4R7M	4.7	100KHZ	0.30	1.00
CD31-6R8M	6.8	100KHZ	0.47	0.80
CD31-8R2M	8.2	100KHZ	0.52	0.76
CD31-100M	10.0	100KHZ	0.55	0.70
CD31-120M	12.0	100KHZ	0.75	0.60
CD31-150M	15.0	100KHZ	0.91	0.50
CD31-220M	22.0	100KHZ	1.20	0.40
CD31-270M	27.0	100KHZ	1.50	0.36
CD32 series features
Five ring number TYPE	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	(KHz).	(Ω) MAX.	A MAX
CD32-100K	10	100	0.23	0.760
CD32-120K	12	100	0.27	0.685
CD32-150K	15	100	0.31	0.635
CD32-180K	18	100	0.41	0.525
CD32-220K	22	100	0.47	0.500
CD32-270K	27	100	0.66	0.405
CD32-330K	33	100	0.76	0.380
CD32-390K	39	100	0.85	0.355
CD32-470K	47	100	0.97	0.330
CD32-560K	56	100	1.25	0.290
CD32-680K	68	100	1.45	0.275
CD32-820K	82	100	1.85	0.235
CD32-101K	100	100	2.20	0.220
CD32-121K	120	100	2.90	0.185
CD32-151K	150	100	3.40	0.170
CD32-181K	180	100	3.90	0.165
CD32-221K	220	100	4.50	0.155
CD32-271K	270	100	6.00	0.135
CD32-331K	330	100	7.00	0.125
CD32-391K	390	100	7.80	0.115
CD43 series features
Five ring number	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	( MHz ).	(Ω) MAX.	A MAX
CD43-1R0M	1.0	7.96	0.0487	2.560
CD43-1R4M	1.4	7.96	0.0562	2.520
CD43-1R8M	1.8	7.96	0.0637	1.950
CD43-2R2M	2.2	7.96	0.0712	1.750
CD43-2R7M	2.7	7.96	0.0787	1.580
CD43-3R3K	3.3	7.96	0.0862	1.440
CD43-3R9K	3.9	7.96	0.0937	1.330
CD43-4R7K	4.7	7.96	0.1087	1.150
CD43-5R6K	5.6	7.96	0.1257	0.990
CD43-6R8K	6.8	7.96	0.1312	0.950
CD43-8R2K	8.2	7.96	0.1462	0.840
CD43-100K	10	2.52	0.1820	1.040
CD43-120K	12	2.52	0.2100	0.970
CD43-150K	15	2.52	0.2350	0.850
CD43-180K	18	2.52	0.3380	0.740
CD43-220K	22	2.52	0.3780	0.680
CD43-270K	27	2.52	0.5220	0.620
CD43-330K	33	2.52	0.5400	0.560
CD43-390K	39	2.52	0.5870	0.520
CD43-470K	47	2.52	0.8440	0.440
CD43-560K	56	2.52	0.9370	0.420
CD43-680K	68	2.52	1.1170	0.370
CD52 series features
Five ring number	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	( MHz ).	(Ω) MAX.	A MAX
CD52-2R2M	2.2	7.96	0.039	2.16
CD52-2R7M	2.7	7.96	0.044	2.08
CD52-3R3K	3.3	7.96	0.049	1.90
CD52-3R9K	3.9	7.96	0.056	1.84
CD52-4R7K	4.7	7.96	0.062	1.60
CD52-5R6K	5.6	7.96	0.078	1.44
CD52-6R8K	6.8	7.96	0.091	1.36
CD52-8R2K	8.2	7.96	0.103	1.12
CD52-100K	10	2.52	0.133	1.04
CD52-120K	12	2.52	0.148	0.96
CD52-150K	15	2.52	0.166	0.88
CD52-180K	18	2.52	0.213	0.77
CD52-220K	22	2.52	0.248	0.73
CD52-270K	27	2.52	0.328	0.64
CD52-330K	33	2.52	0.378	0.58
CD52-390K	39	2.52	0.438	0.54
CD52-470K	47	2.52	0.546	0.49
CD52-560K	56	2.52	0.621	0.45
CD52-680K	68	2.52	0.715	0.41
CD52-820K	82	2.52	1.000	0.35
CD52-101K	100	1KHZ	1.070	0.35
CD52-121K	120	1KHZ	1.250	0.32
CD52-151K	150	1KHZ	1.660	0.26
CD52-181K	180	1KHZ	1.900	0.23
CD52-221K	220	1KHZ	2.440	0.21
CD52-271K	270	1KHZ	2.730	0.19
CD53 series features
Five ring number TYPE	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	( MHz ).	(Ω) MAX.	A MAX
CD53-2R2M	2.2	7.96	0.03	3.50
CD53-2R7M	2.7	7.96	0.04	3.20
CD53-3R3K	3.3	7.96	0.05	2.80
CD53-3R9K	3.9	7.96	0.06	2.60
CD53-4R7K	4.7	7.96	0.07	2.50
CD53-5R6K	5.6	7.96	0.08	2.40
CD53-6R8K	6.8	7.96	0.09	2.20
CD53-8R2K	8.2	7.96	0.10	2.00
CD53-100K	10	2.52	0.12	1.80
CD53-120K	12	2.52	0.13	1.75
CD53-150K	15	2.52	0.15	1.70
CD53-180K	18	2.52	0.18	1.60
CD53-220K	22	2.52	0.22	1.50
CD53-270K	27	2.52	0.24	1.40
CD53-330K	33	2.52	0.30	1.10
CD53-390K	39	2.52	0.40	1.00
CD53-470K	47	2.52	0.43	0.90
CD53-560K	56	2.52	0.50	0.85
CD53-680K	68	2.52	0.60	0.80
CD53-820K	82	2.52	0.80	0.65
CD53-101K	100	1KHZ	0.90	0.60
CD53-121K	120	1KHZ	1.00	0.58
CD53-151K	150	1KHZ	1.30	0.43
CD53-181K	180	1KHZ	1.50	0.41
CD53-221K	220	1KHZ	2.00	0.38
CD53-271K	270	1KHZ	2.50	0.35
CD53-331K	330	1KHZ	3.20	0.28
CD53-391K	390	1KHZ	3.50	0.26
CD53-471K	470	1KHZ	4.20	0.20
CD53-561K	560	1KHZ	4.50	0.19
CD53-681K	680	1KHZ	6.00	0.18
CD53-821K	820	1KHZ	6.50	0.15
CD53-102K	1000	1KHZ	8.00	0.13
CD54 series features
Five ring number	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	(MHz).	(Ω) MAX.	A MAX
CD54-100K	10	2.52	0.10	1.44
CD54-120K	12	2.52	0.12	1.40
CD54-150K	15	2.52	0.14	1.30
CD54-180K	18	2.52	0.15	1.23
CD54-220K	22	2.52	0.18	1.11
CD54-270K	27	2.52	0.20	0.97
CD54-330K	33	2.52	0.23	0.88
CD54-390K	39	2.52	0.32	0.80
CD54-470K	47	2.52	0.37	0.72
CD54-560K	56	2.52	0.42	0.68
CD54-680K	68	2.52	0.46	0.61
CD54-820K	82	2.52	0.60	0.58
CD54-101K	100	1KHZ	0.70	0.52
CD54-121K	120	1KHZ	0.93	0.48
CD54-151K	150	1KHZ	1.10	0.40
CD54-181K	180	1KHZ	1.39	0.38
CD54-221K	220	1KHZ	1.57	0.35
CD73 series features
Five ring number	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	(MHz).	(Ω) MAX.	A MAX
CD73-100K	10	2.52	0.08	1.44
CD73-120K	12	2.52	0.09	1.39
CD73-150K	15	2.52	0.10	1.24
CD73-180K	18	2.52	0.11	1.12
CD73-220K	22	2.52	0.13	1.07
CD73-270K	27	2.52	0.15	0.94
CD73-330K	33	2.52	0.17	0.85
CD73-390K	39	2.52	0.22	0.74
CD73-470K	47	2.52	0.25	0.68
CD73-560K	56	2.52	0.28	0.64
CD73-680K	68	2.52	0.33	0.59
CD73-820K	82	2.52	0.41	0.54
CD73-101K	100	1KHZ	0.48	0.51
CD73-121K	120	1KHZ	0.54	0.49
CD73-151K	150	1KHZ	0.75	0.40
CD73-181K	180	1KHZ	1.02	0.36
CD73-221K	220	1KHZ	1.20	0.31
CD73-271K	270	1KHZ	1.31	0.29
CD73-331K	330	1KHZ	1.50	0.28
CD75 series features
Five ring number	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	(MHz).	(Ω) MAX.	A MAX
CD75-100K	10	2.52	0.07	2.30
CD75-120K	12	2.52	0.08	2.00
CD75-150K	15	2.52	0.09	1.80
CD75-180K	18	2.52	0.10	1.60
CD75-220K	22	2.52	0.11	1.50
CD75-270K	27	2.52	0.12	1.30
CD75-330K	33	2.52	0.13	1.20
CD75-390K	39	2.52	0.16	1.10
CD75-470K	47	2.52	0.18	1.10
CD75-560K	56	2.52	0.24	0.94
CD75-680K	68	2.52	0.28	0.85
CD75-820K	82	2.52	0.37	0.78
CD75-101K	100	1KHZ	0.43	0.72
CD75-121K	120	1KHZ	0.47	0.66
CD75-151K	150	1KHZ	0.64	0.58
CD75-181K	180	1KHZ	0.71	0.51
CD75-221K	220	1KHZ	0.96	0.49
CD75-271K	270	1KHZ	1.11	0.42
CD75-331K	330	1KHZ	1.26	0.40
CD75-391K	390	1KHZ	1.77	0.36
CD75-471K	470	1KHZ	1.96	0.34
CD104 series features
Five ring number	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	(MHz).	(Ω) MAX.	A MAX
CD104-100K	10	2.52	0.053	2.38
CD104-120K	12	2.52	0.061	2.38
CD104-150K	15	2.52	0.070	1.87
CD104-180K	18	2.52	0.081	1.73
CD104-220K	22	2.52	0.088	1.60
CD104-270K	27	2.52	0.100	1.44
CD104-330K	33	2.52	0.120	1.26
CD104-390K	39	2.52	0.151	1.20
CD104-470K	47	2.52	0.170	1.10
CD104-560K	56	2.52	0.199	1.01
CD104-680K	68	2.52	0.223	0.91
CD104-820K	82	2.52	0.252	0.85
CD104-101K	100	1KHZ	0.344	0.74
CD104-121K	120	1KHZ	0.396	0.69
CD104-151K	150	1KHZ	0.544	0.61
CD104-181K	180	1KHZ	0.621	0.56
CD104-221K	220	1KHZ	0.721	0.53
CD104-271K	270	1KHZ	0.950	0.45
CD104-331K	330	1KHZ	1.100	0.42
CD104-391K	390	1KHZ	1.245	0.38
CD104-471K	470	1KHZ	1.526	0.35
CD104-561K	560	1KHZ	1.904	0.32
CD105 series features
Five ring number	L	TESTING	DC	RATED DC
	L	FREQ.	RESISTANCE	CURRENT
	uH	(MHz).	(Ω) MAX.	A MAX
CD105-100K	10	2.52	0.06	2.60
CD105-120K	12	2.52	0.07	2.45
CD105-150K	15	2.52	0.08	2.27
CD105-180K	18	2.52	0.09	2.15
CD105-220K	22	2.52	0.10	1.95
CD105-270K	27	2.52	0.11	1.76
CD105-330K	33	2.52	0.12	1.50
CD105-390K	39	2.52	0.14	1.37
CD105-470K	47	2.52	0.17	1.28
CD105-560K	56	2.52	0.19	1.17
CD105-680K	68	2.52	0.22	1.11
CD105-820K	82	2.52	0.25	1.00
CD105-101K	100	1KHZ	0.35	0.97
CD105-121K	120	1KHZ	0.40	0.89
CD105-151K	150	1KHZ	0.47	0.78
CD105-181K	180	1KHZ	0.63	0.72
CD105-221K	220	1KHZ	0.73	0.66
CD105-271K	270	1KHZ	0.97	0.57
CD105-331K	330	1KHZ	1.15	0.52
CD105-391K	390	1KHZ	1.30	0.48
CD105-471K	470	1KHZ	1.48	0.42
CD105-561K	560	1KHZ	1.90	0.33
CD105-681K	680	1KHZ	2.25	0.28
CD105-821K	820	1KHZ	2.55	0.24

3. Product Feature And Application of CD31-105 Chip Inductor

CD31-105 chip inductor is UNSHIELDED SMT POWER INDUCTORS Characteristics:

Saturation Current(Isat):The current when the inductance Becomes 10% lower than is initial value.(Ta=20℃).

Temperature Rise Current(Irms):The current when the temperature of coil increases up to max.ΔT=40℃. (Ta=20℃) Operating temperature: -40℃ to 125℃.

Applications: Power supply for VTRs. LCD televisions, Notebook PCs, Portable communication equipment. DC/DC converters ,etc.

4. Product Details of CD31-105 Chip Inductor

Features: Silver Plated Type, Low cost designed. Available on tape and reel for auto surface mounting.

Test equipment: L: Agilent 4284A Precision LCR meter.

L Load: Agilent 4284A with HP42841A current source.

DCR: Milli-ohm meter.

5. Product Qualification of CD31-105 Chip Inductor

The product has stable quality, can withstand the impact of high and low temperature, small volume, various varieties, complete models, conventional products are in stock, and the quality is guaranteed for more than 5 years, which is trustworthy. Inductance tolerance: "M": ±20%; "L": ±15%; "K": ±10% Operating Temperature: -55℃ ~ 125℃.

6. Deliver, Shipping And Serving of CD31-105 Chip Inductor

Our CD31-105 chip inductor generally have a domestic delivery date of 5 working days; The foreign delivery period is 8 working days. Our products are packed in three-level packaging. The packaging is firm and reliable, which can effectively protect the products from falling.