Datasheet Spice Model S-Param Transmission line 3D Models

1508/2508 Series

Low Profile Mini Spring™ Air Core Inductors

Our 1508/2508 Series low-profile Mini Spring™ air core inductors are AEC-Q200 Grade 3 (-40°C to +85°C) qualified and provide exceptionally high Q over a wide frequency range, while being less than 2/3 the height of our standard Mini Springs. Self-resonant frequencies are as high as 5 GHz in this series and they can handle as high as 4 Amps current.

Less than 2/3 the height of our standard Mini Spring™ parts
Flat top for mechanical stability and reliable pick and place operations
Exceptionally high Q over a wide frequency range
Excellent self resonance – as high as 5 GHz
Can handle current as high as 4 Amps
AEC-Q200 Grade 3 (−40°C to +85°C)

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Part number

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Count	Unit price
1	$1.29
250	$1.03
500	$0.88
1000	$0.70
2000	$0.50
5000	$0.37

For high volume or non-stock items, request a quote.

Tolerance

J = 5%

G = 2%

Termination

L = Tin-silver

Packaging

C = 7" machine-ready reel

. in stock, ready to ship today.

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Designer's Kit:

Kit	Values	Price
C394	7 (10 of each)	$45.00
C394-2	7 (10 of each)	$70.00

Specifications

Electrical specifications at 25°C.

Part number 1	Turns	Inductance (nH) 2	Tolerance (%) 3	Q min @ 250 MHz	SRF min (GHz) 4	DCR max (mΩ) 5	Irms (A) 6
Part number 1	Turns	Inductance (nH) 2	Tolerance (%) 3	Q min @ 250 MHz	SRF min (GHz) 4	DCR max (mΩ) 5	Irms (A) 6
1508-5N5_L_	3	5.5	2,5	115	5.0	2.6	4.0
1508-9N0_L_	4	9.0	2,5	120	4.0	3.4	4.0
1508-13N_L_	5	13.0	2,5	100	3.0	3.9	4.0
2508-16N_L_	7	16.0	2,5	110	3.0	5.2	4.0
2508-18N_L_	8	18.0	2,5	110	2.9	6.0	4.0
2508-23N_L_	9	23.0	2,5	110	2.6	6.8	4.0
2508-27N_L_	10	27.0	2,5	110	2.3	7.9	4.0

Notes

When ordering, please specify tolerance, termination and packaging codes: e.g. 2508-27NJLC
L and Q measured at 250 MHz, 0.1 Vrms, 0 A using an Agilent/HP 4291A impedance analyzer with an Agilent/HP 16193A test fixture.
Tolerances in bold are stocked for immediate shipment.
SRF measured using an Agilent/HP 8753 network analyzer and a Coilcraft SMD-D test fixture.
DCR measured using a micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
Current that causes a 15°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.

Tolerance:

G = 2%, J = 5% (Table above shows stock tolerances in bold.)

Termination:

L = RoHS compliant tin-silver (96.5/3.5) over copper.
T = RoHS tin-silver-copper (95.5/4/0.5) over copper. (Special order, added cost)
S = non-RoHS tin-lead (63/37) over copper. (Special order, added cost)

Packaging:

C = 7″ machine-ready reel. EIA-481 embossed plastic tape (1000 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (3500 parts per full reel).

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +125°C with Irms current

Storage temperature range:

Component: –40°C to +140°C.
Tape and reel packaging: –40°C to +80°C

Maximum part temperature:

+140°C (ambient + temp rise).

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

L vs Frequency

Q vs Frequency

Physical characteristics

Part number	Weight (mg)
1508-5N5	52
1508-9N0	65
1508-13N	78
2508-16N	110
2508-18N	118
2508-23N	133
2508-27N	147

Size	A max	B max	C max	D	E	F max
1508	0.155	0.165	0.079	0.135	0.115 ±0.015	0.029
	3,94	4,19	2,01	3,43	2,92 ±0,38	0,74
2508	0.270	0.165	0.079	0.135	0.230 ±0.015	0.029
	6,86	4,19	2,01	3,43	5,84 ±0,38	0,74

Tape and Reel specification

Parts per reel		Reel dimensions (mm)					Tape dimensions (mm)						Orientation
7" (178 mm)	13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
1000	3500*	178/330	60/100	13	18,4	12,4	12	8	4	2	2,2	0,23

* Special order

General specification

Weight:

48 – 130 g

Packaging:

1000/7″ reel; 3500/13″ reel Plastic tape: 2 mm wide, 0.23 mm thick, 8 mm pocket spacing, 2.2 mm pocket depth

Temperature coefficient of inductance:

+5 to +70 ppm/°C

Soldering/Washing

Moisture Sensitivity Level (MSL):

) 1 (unlimited floor life at <30°C / 85% relative humidity)

Resistance to soldering heat:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

1508/2508 Series

Low Profile Mini Spring™ Air Core Inductors