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4308RV Series
RFID Transponder Coils

New RoHS part numbers are shown. The products were always compliant; only the part numbers changed. The second to the last character is now L to indicate RoHS compliance. (Old data sheet can be viewed here.)

For RFID applications at 125kHz
Low profile and extended length allow longer read ranges and higher Q
Encapsulated top ensures reliable pick and place operations
Core and encapsulation rated for 125°C

For harsh environments like tire pressure monitoring systems, consider our 4312RV

5315TC

RoHS Compliant. 260°C compatible. Silver-palladium-platinum-glass frit terminations.
COTS Plus tin-silver-copper and tin-lead terminations available
Samples of all values are available in Coilcraft Designer's Kit C383

Photo Pricing Materials declaration PDF data sheet

SPECIFICATIONS

Q versus Frequency L versus Frequency Dimensions

Tape and reel specifications Qualification standards


4308RV-374X_L_	0.37	5,2	26	22 / 55.9	9.82	4380	6.5	1800	Orn Vio Yel
4308RV-404X_L_	0.40	5,2	26	23 / 58.4	10.38	4050	7.1	5000	Yel Blk Yel
4308RV-704X_L_	0.70	5,2	20	25 / 63.5	13.96	2320	19	6600	Vio Blk Yel
4308RV-904X_L_	0.90	5,2	22	26 / 66.0	16.06	1800	21	4800	Wht Blk Yel
4308RV-115X_L_	1.08	5,2	24	30 / 76.2	17.78	1500	24	4300	Brn Brn Grn
4308RV-205X_L_	1.97	5,2	28	34 / 86.4	24.90	823	31	1750	Red Blk Grn
4308RV-245X_L_	2.38	5,2	30	37 / 94.0	28.21	681	34	1700	Red Yel Grn
4308RV-295X_L_	2.89	5,2	30	37 / 94.0	32.12	561	42	1900	Red Wht Grn
4308RV-335X_L_	3.30	5,2	30	38 / 96.5	34.96	491	48	1425	Orn Orn Grn
4308RV-415X_L_	4.15	5,2	27	39 / 99.1	41.35	391	70	1620	Yel Brn Grn
4308RV-495X_L_	4.90	5,2	26	38 / 96.5	47.17	331	93	1150	Yel Wht Grn
4308RV-685X_L_	6.80	5,2	28	41 / 104.1	61.71	238	110	1080	Blu Gry Grn
4308RV-715X_L_	7.10	5,2	27	42 / 106.7	65.60	228	114	1050	Vio Brn Grn
4308RV-725X_L_	7.20	5,2	28	40 / 101.6	66.67	225	114	965	Vio Red Grn
4308RV-815X_L_	8.10	5,2	28	42 / 106.7	75.08	200	125	960	Gry Brn Grn
4308RV-905X_L_	9.00	5,2	30	40 / 101.6	84.64	180	125	725	Wht Blk Grn

1	When ordering, please specify tolerance, termination and packaging codes: e.g. 4308RV-905XGLD
	Tolerance:	G = 2%, J = 5% (Table above shows stock tolerances in bold.)
	Termination:	L = RoHS compliant silver-palladium-platinum-glass frit Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37).
	Packaging:	D = 13" machine-ready reel EIA-481 embossed plastic tape (3000 per full reel). B = Less than full reel In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter D instead.

2	Inductance and Q measured using Agilent/HP 4192A impedance analyzer.
3	Tolerances in bold are stocked for immediate shipment.
4	Read distance measured using the KEELOQ^® Transponder Evaluation Kit part number DM303005 from Microchip. Distance was recorded as the voltage across the resonant circuit dropped below 10 mV.
5	Sensitivity measured in accordance with Coilcraft application note Measuring Sensitivity of Transponder Coils.
6	Matching capacitor value required for parallel resonant circuit operating at 125 kHz.
7	DCR measured on micro-ohmmeter.
8	SRF measured using Agilent/HP 8753D network analyzer. Details
9	Ambient temperature range:	–40°C to +125°C
10	Storage temperature range:	Component: –40°C to +125°C Packaging: –55°C to +80°C
11	Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
12	Electrical specifications at 25°C.
13	Temperature coefficient of inductance: +200 to +700 ppm/°C. Details
See Qualification Standards for environmental and test data.
Refer to Application Notes Transponder Coils in an RFID System and Measuring Sensitivity of Transponder Coils for additional information.
Refer to Soldering Coilcraft Components before soldering.

4308RV Series RFID Transponder Coils

SPECIFICATIONS