§ All of the above bare chips are provided with two 3" long 29-30 AWG insulated color coded leads attached to the front for anode (RED) and to the back for Cathode (BLACK).
They are also available in chip form only (Leadless). For Ordering subtract Suffix ‘L’ from the Model Number, i.e. S-100C.
Since the spectral response of silicon photodiode includes the visible light region, care must be taken to avoid photodiode exposure to high ambient
light levels, particularly from tungsten sources or sunlight. During shipment from UDT Sensors, your photodiodes are packaged in opaque, padded
containers to avoid ambient light exposure and damage due to shock from dropping or jarring.
AVOID SHARP PHYSICAL SHOCK
Photodiodes can be rendered inoperable if dropped or sharply jarred. The wire bonds are delicate and can become separated from the photodiode’s
bonding pads when the detector is dropped or otherwise receives a sharp physical blow.
CLEAN WINDOWS WITH OPTICAL GRADE CLOTH / TISSUE
Most windows on UDT Sensors photodiodes are either silicon or quartz. They should be cleaned with isopropyl alcohol and a soft (optical grade) pad.
OBSERVE STORAGE TEMPERATURES AND HUMIDITY LEVELS
Photodiode exposure to extreme high or low storage temperatures can affect the subsequent performance of a silicon photodiode. Storage temperature
guidelines are presented in the photodiode performance specifications of this catalog. Please maintain a non-condensing environment for optimum
performance and lifetime.
OBSERVE ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
UDT Sensors photodiodes, especially with IC devices (e.g. Photops) are considered ESD sensitive. The photodiodes are shipped in ESD protective
packaging. When unpacking and using these products, anti-ESD precautions should be observed.
DO NOT EXPOSE PHOTODIODES TO HARSH CHEMICALS
Photodiode packages and/or operation may be impaired if exposed to CHLOROTHENE, THINNER, ACETONE, or TRICHLOROETHYLENE.
INSTALL WITH CARE
Most photodiodes in this catalog are provided with wire or pin leads for installation in circuit boards or sockets. Observe the soldering temperatures and
conditions specified below:
Soldering Iron:
Soldering 30 W or less
Temperature at tip of iron 300°C or lower.
Bath Temperature:
Immersion Time:
Soldering Time:
DO NOT USE
DO NOT USE
260±5°C.
within 5 Sec.
within 3 Sec.
Dip Soldering:
Vapor Phase Soldering:
Reflow Soldering:
Photodiodes in plastic packages should be given special care. Clear plastic packages are more sensitive to environmental stress than those of black
plastic. Storing devices in high humidity can present problems when soldering. Since the rapid heating during soldering stresses the wire bonds and can
cause wire to bonding pad separation, it is recommended that devices in plastic packages to be baked for 24 hours at 85°C.
The leads on the photodiode
SHOULD NOT BE FORMED.
If your application requires lead spacing modification, please contact UDT Sensors
Applications group at (310)978-0516 before forming a product’s leads. Product warranties could be voided.
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