[muRata] Products for Automotive | Products/Sensors and Other Products

Ceramics, electrodes, mono-crystal materials-Murata always goes back to the fundamentals of material technology to yield necessary performance. We are striving to develop unique direct detection sensors taking advantage of electric characteristics in each material, through technologies such as material/design/process for sensor element development.

For direction and position detection of automobiles.

High precision
Excellent stability against change in the surrounding temperature
Being compact and low profile SMD increases freedom of equipment design.
Adoption of MEMS technology in its vibration element to achieve compactness and high performance.

Part Number	Supply Voltage (Vdc)		Max. Angular Velocity (deg./sec.)	Output(Vdc)	Scale Factor (mV/deg./sec.)	Offset Drift(deg./sec.)	Operating Temperature Range (°C)	Weight(g)
MEV-50A-R	4.75 to 5.25		±70	2.5	25	6 max.	-40 to +85	1.5 max.

Angle detection: feedback sensor for motor actuators, etc. / Position detection: replaces limit switches Switching: replaces rotary switches / Variable resistance: works as a low profile, long life variable resistor

Output voltage characteristics may be customized.
Effective angle of rotation may be changed electrically, and works with step output
No silver is used for the terminal or internal electrode, does not cause silver migration.
High precision is realized through, high-dispersion resistor technology, fine press/insert molding technology and high-precision screen-printing technology.

Series	Linearity (%)	Rotational Life (Cycle)	Rated Voltage (V)
SV01A (SMD Type)	2	1M	5
SV01L (LEAD Type)	2	1M	5

Used to detect tire revolutions to save battery power in TPMS, and used in acceleration sensors for airbag subsensors to detect collisions.

A high resonant frequency of 39kHz means acceleration can be detected at high bandwidths.
Enable reflow surface mounting.

Part Number	Inclination Angle of Primary Axis(deg.)	Electric Charge Sensitivity (pC/G)	Insulation Resistance (MΩ)	Resonant Frequency (kHz)	Capacitance (pF)	Operating Temperature Range (°C)	Size (mm)
PKGS-25TA-R	25	0.205	500 min.	39 typ.	240	-40 to +125	4.8×2.3×1.3

Used to detect abnormal vibration from automobile engine knocking and send feedback to the engine control system.

Due to the extreme environment surrounding the sensor, it is designed with heat and stress resistance in mind.

Type	Part Number	Resonant Frequency(kHz)	Capacitance(pF)	Electro Mechanical Coupling Co-efficient (%)
Non Resonant Type	6CC-10-3R9-1000-1	165	230	20
Resonant Type	7D-25-1600	80	6300	45

Measures the distance between the car and the object behind it when backing up to park. Has a flat orientation, being wide horizontally and narrow vertically.

Very sensitive with short reverberation. Its built-in temperature compensation capacitor realizes excellent reverberation temperature characteristics.
Realized anisotropic orientation in horizontal and vertical direction through the vibration plane design. Its original damping structure prevents vibration permeating to back of the sensor.

Series	Type	Using Method	Nominal Frequency	Sensitivity(dB)	S.P.L.(dB)	Directivity(°)	Size(mm)
MA40MF14	Water Proof Type	Dual Use	40	-87 min.	103 min.	110×50	Ø14

Used for temperature compensation in various ultrasonic sensors including back sonar and corner sonar.

Optimal for temperature compensation of ultrasonic sensors

GRM_9E	Temp. Co-efficient	ZLM	-4700+1000/-2500ppm/°C max. (-25°C to +20°C)
GRM_9E	Temp. Co-efficient	ZLM	-4700+500/-1000ppm/°C max. (+20°C to +85°C)

Optimal for human presence detection sensor.

Due to its high unloaded Q, favorable N/C characteristics are achieved
Compactness and high performance are achieved through dielectric ceramic technology and copper electrode plating technology.
2.4GHz Band DRR Type: Inductance of VCO
24GHz Band DRD Type: Resonant Element of Oscillator Circuit

Type	Material	Dielectric Constant(εr)	Size (mm)	Resonant Frequency (MHz)	Wavelength
DRR Type	P Series	21(typ.)	2, 3, 4, 6	1000 to 5000	λ/4

Type	Material	Dielectric Constant(εr)	Q(=1/tanδ)	Temp. Characteristics of Resonant Frequency (τf)
DRD Type	R Series	30 (typ.)	12,000 min.(@10GHz)	0 to 6ppm/°C

Sound Components to generate acknowledgment tone in instrumental panel, power slide door alarm, ultrasonic sonar operation alert and other alarm sounds.

Lightweight, compactness and low profile are realized through simple construction.
Since it is voltage-driven, power consumption is less than 10% of electromagnetic sounders. Drive circuit can be simplified by directly driving from an IC.
No EMI noise due to no magnet used.
Taping product (ammo pack) and SMD are also available.
Low resonant frequency (2kHz) version is available.

Series	Type	Features
PKLCS	SMD Type	Super-compact and low-profiled, workable with automatic mounting and reflow soldering
PKM_EPP(H)	Pin Type	General-purpose products, low frequency (2kHz) products and high sound pressure products are in the line-up
PKM13EPYH	Pin Type	Small and low-profiled, workable with automatic insertion

Coating type with shatterproof 50µm thin film. Separate type plate-form thin type sandwich core prevents accidental breakage.

Thin-type sandwich core is 50% thinner and 20% lighter than a conventional thin-type flat cable core.
Both coating-type core and thin-type sandwich core are shatterproof, preventing secondary damage to other devices in the case of accidental breakage. The cores maintain a noise removal function.

Type	Line-up	Frequency (MHz)
Coating Core	Workable with all line-ups	Several 10 to Several 100
Thin Type Sandwich Core	Length of Core 10, 15, 20, 22, 29mm	Several 10 to Several 100

Generates ions as an added function to a car air-conditioner to deodorize and clean the air in the car.

Low voltage operation (-2.5kVdc) is possible due to Ø70µm thin line and optimization of ground potential structure.
Suppressing leakage current to the ground potential makes it ozone-free(ozone generation is less than 0.01ppm).

Rated Voltage (kVdc)	Ion Amount (CC)	Ozone Amount (ppm)
-2.5	500000	0.01 max.

Used for power supplies of all circuits and actuators in the car navigation system including digital signal processing circuit, VICS circuit, DVD driver, HDD driver and tuner circuit. It is also fully customizable for LCD driver power supply, as well as for backlight LED power supply.

Adopted a high efficiency synchronous rectifier circuit, and simultaneously realized downsizing
Multi-output is possible with Murata’s own MV circuit.
Built-in noise measuring circuit for AM radio band and TV band
Usable with metal case shield for radiation noise measure
SMD format allowing reflow