Photodetector / Photodiode

Photodetector / Photodiode

STX series photodetectors are high quality InGaAs/InP PIN photodiodes designed for optical power monitoring and measurement applications. They are assembled into a hermetically-sealed TO package with flat window. Active areas are 300m, 1000m, 3000m an

STX Series Photodetectors

STX series photodetectors are high quality InGaAs/InP PIN photodiodes designed for optical power monitoring and measurement applications. They are assembled into a hermetically-sealed TO package with flat window. Active areas are 300μm, 1000μm, 3000μm and 5000μm respectively.

photodetector

FEATURES

  • Long Wavelength Operation.
  • Low Dark Current.
  • High Responsivity.
  • TO46, TO5, TO8 packages available.
  • Excellent Reliability, qualified based on MIL-STD-883 and GR-468-CORE.

APPLICATIONS

  • Optical power monitoring.
  • Industrial watching and controlling.
  • Measuring instrument.

SPECIFICATIONS

Absolute Maximum Rating

Unit STX-20T-143H-3HG STX-20T-121K-3HF STX-20T-123K-3QH STX-20T-125K-6MK
Active detection diameter μm 300 201000 3000 5000
Reverse voltage V 20 20 20 20
Maximum input optical power mW 10 10 10 10
Forward current mA 10 10 10 10
Reverse current mA 2 2 2 2
Storage temp. oC -40-100 -40-100 -40-100 -40-100
Operating tem. oC -40-85 -40-85 -40-85 -40-85
Relative humidity % 5-95 5-95 5-95 5-95
Lead soldering oC/s 260/10 260/10 260/10 260/10
Power supply voltage V 5 5 5 5
Package & drawing TO46 TO46 TO5 TO8

E-O and O-E Characteristics (Tc=25 oC unless specified)

Unit STX-20T-143H-3HG STX-20T-121K-3HF STX-20T-123K-3QH STX-20T-125K-6MK
Wavelength range nm 700-1700 700-1700 700-1700 700-1700
Responsivity@850nm A/W 0.23 0.23
Responsivity@1310nm A/W 0.95 0.95 0.95 0.85
Responsivity@1550nm A/W 1.05 1.05 1.0 0.9
Responsivity / temperature@1550nm %/ oC 0.03 0.03
Responsivity / input power % -5-5 -5 - 5
Responsivity / wavelength % -5-5 -5 - 5
Dark current@25 oC nA 0.3-1.5 1.5-5
Dark current@85 oC nA 17-30 17-100 7-50 10-50
Bandwidth MHz 300-600 35-50
Reverse breakdown voltage@10uA V 30 20
Forward voltage@1mA V 1.2 0.6 0.6
Saturated optical power dBm 10 10
Capacitance@1MHz pF 3-5 35-50 35-50 1.2-1.5

Laser Pulse Parameter Measurement (High-speed Photodetector)

Laser pulse duration, usually refers to the interval between the time when the laser power maintains at a certain value. The pulse duration of different lasers can vary greatly.

High-speed photodetector combined with oscilloscope can monitor ultra-fast pulsed laser and measure pulse duration, frequency, period and other parameters of lasers.

Product name High-speed photodetector
Part number STC-PD
Wavelength 200-1100nm
Rise time 1ns, 5ns(optional)
Dimensions Ultra-thin body [3/4 inch (19.1 mm)] can measure in narrow space
Battery Internal A23 bias battery (accessory)