3D Model Datasheet

4312RV Series

RFID Transponder Coils for TPMS

Our 4312RV Series of RFID transponder coils is made of a rugged design and is approved for tire pressure monitoring (TPMS) systems.

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
AEC-Q200 Grade 1 (−40°C to +125°C)

Buy Now:

Part number

Find my part

Count	Unit price
1	$0.98
750	$0.92
1500	$0.80
3000	$0.72
6000	$0.64

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

Tolerance

G = 2%

Termination

L = Gold over nickel

Packaging

D = 13" machine-ready reel

. in stock, ready to ship today.

Request a Sample:

Part number

Find my part

Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (mH) at 125 kHz 2 (Tolerance: ±2%)	Q min	Read distance (inch/cm) 3	Sensitivity (mV/µT) 4	Matching capacitor (pF) 5	DCR max (Ω) 6	SRF typ (kHz) 7
4312RV-404XGL_	0.40	21	19.65 / 49.91	9.14	4050	11.5	6340
4312RV-105XGL_	1.00	21	24.25 / 61.6	15.26	1621	29.0	4150
4312RV-245XGL_	2.38	26	28.35 / 72.01	24.72	681	55.0	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	35.83 / 91.0	78.1	180	150	1200

Notes

When ordering, please specify packaging code: 4312RV-725XGLD
Inductance and Q measured using Agilent/HP 4192A impedance analyzer at 125 kHz. For recommended test procedures, contact Coilcraft
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.
Sensitivity measured in accordance with Coilcraft application note “Measuring Sensitivity of Transponder Coils.”
Matching capacitor value required for parallel resonant circuit operating at 125 kHz.
DCR measured on micro-ohmmeter
SRF measured using Agilent/HP 8753D network analyzer

Termination:

RoHS compliant gold over nickel over phos bronze.

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (3000 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 D.

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +125°C

Storage temperature range:

Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C

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

See FIT/MTBF Calculations

Performance curves

L vs Frequency

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
3000	330	100	13	30,4	24,4	24	8	4	2	2,49	0,3

General specification

Weight:

210 – 240 mg

Packaging:

3000 per 13″ reel Plastic tape: 24 mm wide, 0.3 mm thick, 8 mm pocket spacing, 2.49 mm pocket depth

Temperature coefficient of inductance:

+300 to +1100 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 with pure water or alcohol only. More info

4312RV Series

RFID Transponder Coils for TPMS