4312RV Series
RFID Transponder Coils

• For RFID applications at 125kHz
• Designed to withstand the harshest mechanical shock and high temperatures
• Developed for tire pressure monitoring systems
• Uniquely shaped terminations ensure excellent board adhesion
• RoHS Compliant. 260°C compatible. Gold over nickel over phos bronze terminations.
• COTS Plus tin-silver-copper and tin-lead terminations available

Photo    Pricing    Materials declaration    PDF data sheet

SPECIFICATIONS

L versus Frequency    Dimensions    Tape and reel specifications   

Qualification standards

---

4312RV-404XGL_	0.40	21	19.65 / 49,91	9.14	4050	11.5	6340
4312RV-105XGL_	1.00	21	24.25 / 61,60	15.26	1621	29	4150
4312RV-245XGL_	2.38	26	28.35 / 72,01	24.72	681	55	2470
4312RV-495XGL_	4.90	24	32.85 / 83,44	42.45	331	103	1270
4312RV-725XGL_	7.20	30	35.05 / 89,03	60.02	225	128	1465
4312RV-905XGL_	9.00	32	35.80 / 91,00	78.10	180	150	1200

1	When ordering, please specify tolerance, termination and packaging codes: e.g. 4312RV-725XGLD
	Termination:	L = RoHS compliant gold over nickel over phos bronze 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 at125 kHz. For recommended test procedures, contact Coilcraft.
3	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.
4	Sensitivity measured in accordance with Coilcraft application note Measuring Sensitivity of Transponder Coils.
5	Matching capacitor value required for parallel resonant circuit operating at 125 kHz.
6	DCR measured on micro-ohmmeter.
7	SRF measured using Agilent/HP 8753D network analyzer. Details
8	Ambient temperature range:	–40°C to +125°C
9	Storage temperature range:	Component: –40°C to +125°C Packaging: –55°C to +80°C
10	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.
11	Electrical specifications at 25°C.
12	Temperature coefficient of inductance: +300 to +1100 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.