“Unicoil” 10 mm

Tunable RF Inductors

Windings are precision molded into plastic for mechanical and electrical stability
Tuning is done by means of a threaded powdered iron core with a hex socket
Optional plated brass shield cans with solderable tabs provide integral shielding
Extremely economical, even in small quantities
Tune with our handy 3-in-1 "TriTuner" tuning wrench
Samples of all 7 mm and 10 mm values are available in Coilcraft Designer's Kit M302
RoHS-compliant. Terminations: Series 142 and 143 leads – Tin-silver over copper
Series 144 leads – Matte tin over copper
Shield can tabs – Tin-silver over nickel over brass

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Part number

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Count	Unit price
1	$4.44
100	$3.66
250	$2.57
500	$1.90
1000	$1.35
2500	$0.79
5000	$0.52

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

Core

Standard

Without core

. in stock, ready to ship today.

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Part number

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Designer's Kit:

Kit	Values	Price
M302	98 (2 of each)	$60.00

Specifications

Electrical specifications at 25°C.

Unshielded

Part number 1	Color	Turns	Inductance (µH) 2				Test frequency (MHz)	Q min at L nom 3	SRF typ (MHz)	DCR (mΩ) 4
Part number 1	Color	Turns	No core nom	min 5	nom	max	Test frequency (MHz)	Q min at L nom 3	SRF typ (MHz)	DCR (mΩ) 4
142-01J08L	Brown	1½	0.063	0.063	0.065	0.068	40.0	115	980	7.4
142-02J08L	Red	2½	0.092	0.093	0.10	0.11	40.0	118	600	8.4
142-03J08L	Orange	3½	0.13	0.13	0.15	0.16	40.0	120	470	9.6
142-04J08L	Yellow	4½	0.17	0.17	0.20	0.22	40.0	125	420	10.8
142-05J08L	Green	5½	0.21	0.23	0.26	0.29	40.0	122	370	11.9
142-06J08L	Blue	6½	0.26	0.28	0.32	0.36	40.0	112	340	13.2
142-07J08L	Violet	7½	0.31	0.33	0.38	0.43	40.0	112	310	14.5
142-08J08L	Gray	8½	0.36	0.40	0.45	0.50	40.0	106	290	15.7
142-09J08L	White	9½	0.41	0.47	0.52	0.57	40.0	110	270	16.9
142-10J08L	Black	10½	0.46	0.55	0.59	0.64	40.0	104	260	18.0
143-09J12L	White	9½	0.39	0.40	0.55	0.69	40.0	86	280	16.7
143-10J12L	Black	10½	0.44	0.46	0.62	0.79	40.0	90	270	17.9
143-11J12L	Brown	11½	0.49	0.52	0.71	0.90	40.0	78	260	19.2
143-12J12L	Red	12½	0.55	0.58	0.76	0.95	40.0	84	250	20.5
143-13J12L	Orange	13½	0.60	0.67	0.85	1.0	40.0	84	245	21.7
143-14J12L	Yellow	14½	0.65	0.73	0.91	1.1	40.0	82	240	22.8
143-15J12L	Green	15½	0.69	0.80	0.98	1.2	40.0	90	230	23.9
143-16J12L	Blue	16½	0.77	0.89	1.1	1.3	40.0	74	225	25.2
143-17J12L	Violet	17½	0.83	1.0	1.2	1.3	40.0	74	215	26.4
143-18J12L	Gray	18½	0.90	1.1	1.3	1.4	40.0	92	195	27.6
143-19J12L	White	19½	0.91	1.2	1.3	1.4	40.0	98	190	28.9
143-20J12L	Black	20½	0.96	1.3	1.4	1.5	40.0	92	185	30.0
144-01J12L	Brown	1½	0.053	0.056	0.059	0.062	40.0	140	1800	7.4
144-02J12L	Red	2½	0.075	0.079	0.088	0.098	40.0	145	1150	8.6
144-03J12L	Orange	3½	0.099	0.10	0.12	0.14	40.0	147	900	9.7
144-04J12L	Yellow	4½	0.13	0.13	0.16	0.20	40.0	150	765	10.9
144-05J12L	Green	5½	0.15	0.16	0.21	0.25	40.0	154	670	12.1
144-06J12L	Blue	6½	0.18	0.19	0.25	0.31	40.0	154	610	13.6
144-07J12L	Violet	7½	0.21	0.24	0.30	0.36	40.0	158	525	14.7
144-08J12L	Gray	8½	0.25	0.28	0.34	0.41	40.0	160	465	15.9
144-09J12L	White	9½	0.27	0.33	0.39	0.45	40.0	162	420	17.1
144-10J12L	Black	10½	0.31	0.39	0.44	0.49	40.0	162	390	18.5

Shielded

Part number 1	Color	Turns	Inductance (nH) 2				Test frequency (MHz)	Q min at L nom 3	SRF typ (GHz)	DCR (mΩ) 4
Part number 1	Color	Turns	No core nom	min 5	nom	max	Test frequency (MHz)	Q min at L nom 3	SRF typ (GHz)	DCR (mΩ) 4
142-01J08SL	Brown	1½	58	58	59.5	61	40.0	82	1.2	7.4
142-02J08SL	Red	2½	81	84	86	89	40.0	83	0.65	8.4
142-03J08SL	Orange	3½	110	115	120	121	40.0	85	0.55	9.6
142-04J08SL	Yellow	4½	140	147	156	160	40.0	88	0.46	10.8
142-05J08SL	Green	5½	174	182	197	205	40.0	94	0.41	11.9
142-06J08SL	Blue	6½	210	220	240	248	40.0	94	0.37	13.2
142-07J08SL	Violet	7½	247	259	280	290	40.0	90	0.33	14.5
142-08J08SL	Gray	8½	284	299	322	337	40.0	86	0.32	15.7
142-09J08SL	White	9½	319	338	363	377	40.0	88	0.31	16.9
142-10J08SL	Black	10½	357	382	410	422	40.0	82	0.29	18.0
143-09J12SL	White	9½	300	315	369	423	40.0	80	0.30	16.7
143-10J12SL	Black	10½	338	355	416	477	40.0	82	0.29	17.9
143-11J12SL	Brown	11½	377	396	468	540	40.0	78	0.27	19.2
143-12J12SL	Red	12½	412	433	509	585	40.0	80	0.27	20.5
143-13J12SL	Orange	13½	452	475	556	637	40.0	80	0.27	21.7
143-14J12SL	Yellow	14½	490	515	604	693	40.0	78	0.26	22.8
143-15J12SL	Green	15½	522	583	660	738	40.0	80	0.25	23.9
143-16J12SL	Blue	16½	575	638	720	801	40.0	76	0.25	25.2
143-17J12SL	Violet	17½	612	693	770	846	40.0	76	0.24	26.4
143-18J12SL	Gray	18½	650	754	814	874	40.0	82	0.22	27.6
143-19J12SL	White	19½	675	792	846	900	40.0	80	0.21	28.9
143-20J12SL	Black	20½	715	847	896	945	40.0	74	0.20	30.0
144-01J12SL	Brown	1½	50	52	53	54	40.0	97	2.2	7.4
144-02J12SL	Red	2½	67	70	74	78	40.0	98	1.2	8.6
144-03J12SL	Orange	3½	88	92	99	106	40.0	98	0.92	9.7
144-04J12SL	Yellow	4½	106	111	122	133	40.0	100	0.79	10.9
144-05J12SL	Green	5½	126	132	149	165	40.0	101	0.69	12.1
144-06J12SL	Blue	6½	147	154	175	196	40.0	106	0.63	13.6
144-07J12SL	Violet	7½	168	176	200	223	40.0	104	0.53	14.7
144-08J12SL	Gray	8½	190	202	226	250	40.0	108	0.48	15.9
144-09J12SL	White	9½	210	239	256	274	40.0	108	0.44	17.1
144-10J12SL	Black	10½	232	270	282	295	40.0	106	0.42	18.5

Notes

To order fixed inductance parts without cores, eliminate the “J08” or “J12”, e.g. 144-01.
Inductance and Q readings taken on Boonton 260-A Q meter with 16 AWG tinned copper 1/2" long soldered along leads and bent at 90° 1/4" down from stand offs.
All inductance values greater than 0.1 µH read at recommended Q meter frequency.
All inductance values below 0.1 µH calculated from readings taken at 50 MHz.
Q min measured at L nom at 40 MHz.
DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
L min measured with core halfway out top of form.

Termination:

Series 142 and 143 leads: Tin-silver over copper
Series 144 leads: Matte tin over copper
Shield can tabs: Tin-silver over nickel over brass

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

−40°C to +85°C

Storage temperature range:

Component: −40°C to +85°C
Packaging trays or tubes: −40°C to +80°C

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

See FIT/MTBF Calculations

Physical characteristics

Unshielded Styles

Shielded Styles

General specification

Core Material:

Carbonyl J Core length: 142 Series - 1/4"; 143, 144 Series - 3/8"

Weight:

142 series unshielded: 1.39 – 1.82 g, shielded: 1.64 – 2.16 g; 143 series unshielded: 1.75 – 2.40 g, shielded: 2.85 – 3.54 g; 144 series unshielded: 1.22 – 1.74 g, shielded: 2.35 – 2.91 g

Packaging:

Unshielded: 50 per tube
With shield can: 50 per tube

Soldering/Washing

Resistance to soldering heat:

Wave solder only. Recommended maximum board surface temperature of 168°C (334°F) for no more than three seconds. Pre-heating is recommended to minimize time over the solder nozzle.

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

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

“Unicoil” 10 mm

Tunable RF Inductors

Specifications

Unshielded

Shielded

Termination:

Physical characteristics

Unshielded Styles

Shielded Styles

General specification

Soldering/Washing

Related product series

“Unicoil” 5 mm

“Unicoil” 7 mm

Warehouses

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“Unicoil” 10 mm

Tunable RF Inductors

Selected configuration not available

Specifications

Unshielded

Shielded

Termination:

Physical characteristics

Unshielded Styles

Shielded Styles

General specification

Soldering/Washing

Related product series

“Unicoil” 5 mm

“Unicoil” 7 mm

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