Optical Sensors Product Line

ROHM offers a wide array of optical sensor products

Image of ROHM Semiconductor's Optical Sensors Product LineROHM offers a range of optical sensors that consists of IR LEDs and phototransistors to fully integrated photointerrupter modules.

IR LEDs and transistor sensor products are offered in packages ranging from through hole packages to very small low profile (0.8 mm) SMD top view and side view packages, all featuring ambient light resistance with wide or narrow viewing angles. These devices are suitable for remote control transmitters, games, security, industrial applications, and proximity detection.

Integrated products such as photointerrupters and reflectors are offered in a variety of package sizes and different gap and slit widths. High accuracy detection due to double molding technology makes them ideal for printer applications, including paper/door detection and motor rotation/position sensing.

Tilt sensors offered in small, low profile, low noise SMD packages are applicable for orientation detection and image rotation in digital cameras, cell phones, tablet computers, and other handheld devices.

IR LEDs and Emitters

ROHM’s SIM-030ST and SIM-040ST are high-performance IR LEDs ideally suited for proximity sensor applications. These surface-mount IR LEDs feature breakthrough IR wavelength technology providing peak output of 870 nm, compared to 950 nm for comparable devices. The 870 nm level is much closer to the peak wave sensitivity of phototransistors (sensors), thus achieving higher efficiency proximity sensing and energy savings of up to 66 percent. In addition, the small package footprint and low-profile further enhance their application in cell phones and other portable devices. The following table highlights ROHM’s surface-mount and through-hole IR LEDs with wavelengths between 850 nm and 950 nm.

IR Phototransistors-Sensors

ROHM’s lineup of phototransistors feature visible light filtering and wide viewing angles which provide high sensitivity. Surface-mount and through-hole packages are available as well as side-view and reverse-mount options. When a phototransistor such as the RPT-34PB3F is paired with the IR LED SIR-34ST3F, it makes an ideal optical receiver and transmitter for control equipment. SML-810TB features high gain and collector current. This molded type chip is ideal for reverse mounting. Other features include low profile, accurate positioning, and it saves board space. This sensor is ideally suited for SMD reflow assembly applications. SCM-014TB features high gain and collector current. This top-view molded chip is designed for automatic mounting and SMD reflow assemblies. Other features include high sensitivity, 800 nm peak wavelength, and outstanding ambient light filtering. This sensor is also ideal for photo sensing and motion sensing applications. RPM-012PB is an ultra-compact side-view chip sensor. It’s ideal for high sensitivity optical remote control applications when used in combination with the SIM-012SB emitter. Features include high power lens and ultra-compact surface mount package. Reflow is possible.

Photointerrupters

Photointerruptors integrate an IR LED with a IR phototransistor into one module for optical detection. ROHM’s line of photointerruptors include both transmission and reflective types. Transmission type Photointerruptors feature groove gaps from 0.8 mm to 2 mm and slit widths from 0.15 mm to 0.4 mm. Both surface-mount and through-hole devices are available and are ideal for mini industrial sensors, copiers and digital video cameras.

Tilt Sensors

ROHM’s RPI-1035 4-directional sensor is based on a new ”Optical” solution for tilt sensing. This device receives less influence from vibration than the mechanical type device and is also free from magnetic influence unlike the magnetic type device -- so this device detects up/down in four directions accurately. RPI-1035 is an optical surface mount 4-way detection sensor with one IR LED and two phototransistors for detecting orientation, rotation, or fall in a variety of applications. Features include a thin package; silent, noise-free operation; shielded from vibration, magnetic and RF noise; and high precision detection. This tilt sensor is suitable for cell phone, digital camera, portable audio, iron, and heating fan applications.

IR LEDs and Emitters

ImageManufacturer Part NumberDescriptionAvailable Quantity
SIR-34ST3F datasheet linkEMITTER IR 950NM 100MA T-1SIR-34ST3FEMITTER IR 950NM 100MA T-17087 - Immediate
SIR-34ST3F product page link
SIM-012SBT97 datasheet linkEMITTER IR 950NM 40MA SMDSIM-012SBT97EMITTER IR 950NM 40MA SMD3188 - Immediate
SIM-012SBT97 product page link
SIR-320ST3FF datasheet linkEMITTER IR 940NM 75MA T-1SIR-320ST3FFEMITTER IR 940NM 75MA T-1902 - Immediate
SIR-320ST3FF product page link
SIR-56ST3FF datasheet linkEMITTER IR 950NM 100MA T 1 3/4SIR-56ST3FFEMITTER IR 950NM 100MA T 1 3/40SIR-56ST3FF product page link
SIR-505STA47F datasheet linkEMITTER IR 950NM 100MA T 1 3/4SIR-505STA47FEMITTER IR 950NM 100MA T 1 3/40SIR-505STA47F product page link
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IR Phototransistors-Sensors

ImageManufacturer Part NumberDescriptionAvailable Quantity
RPT-34PB3F datasheet linkPHOTOTRANSISTOR 800NM 3MMRPT-34PB3FPHOTOTRANSISTOR 800NM 3MM6729 - Immediate
RPT-34PB3F product page link
RPT-37PB3FN datasheet linkPHOTOTRANSISTOR 800NM 3MMRPT-37PB3FNPHOTOTRANSISTOR 800NM 3MM12595 - Immediate
RPT-37PB3FN product page link
SML-810TBT86 datasheet linkPHOTOTRANSISTOR 800NMSML-810TBT86PHOTOTRANSISTOR 800NM8003 - Immediate
SML-810TBT86 product page link
SCM-014TBT86 datasheet linkPHOTOTRANSISTOR 800NMSCM-014TBT86PHOTOTRANSISTOR 800NM2000 - Immediate
SCM-014TBT86 product page link
RPM-012PBT87 datasheet linkPHOTOTRANSISTOR NPN 800NM SMDRPM-012PBT87PHOTOTRANSISTOR NPN 800NM SMD0RPM-012PBT87 product page link
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Photointerrupters

ImageManufacturer Part NumberDescriptionAvailable Quantity
RPI-131 datasheet linkSENSR OPTO SLOT 1.2MM TRANS THRURPI-131SENSR OPTO SLOT 1.2MM TRANS THRU2776 - Immediate
RPI-131 product page link
RPI-121 datasheet linkSENSOR OPTO SLOT 1MM TRANS THRURPI-121SENSOR OPTO SLOT 1MM TRANS THRU2897 - Immediate
RPI-121 product page link
RPI-0226 datasheet linkSENSOR OPTO SLOT 2.0X0.3 MM SMDRPI-0226SENSOR OPTO SLOT 2.0X0.3 MM SMD0RPI-0226 product page link
RPI-125 datasheet linkPHOTOINTERRUPTER ULTRAMIN HI RESRPI-125PHOTOINTERRUPTER ULTRAMIN HI RES0RPI-125 product page link
RPI-124F datasheet linkSENSOR OPTO SLOT 1MM TRANS THRURPI-124FSENSOR OPTO SLOT 1MM TRANS THRU0RPI-124F product page link
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Tilt Sensors

ImageManufacturer Part NumberDescriptionAvailable Quantity
RPI-1035 datasheet linkIC DETECTOR 4 DIRECTION SMDRPI-1035IC DETECTOR 4 DIRECTION SMD864 - Immediate
RPI-1035 product page link
Published: 2012-06-29