HomeProductsLight AnalysisDetectors Mounted, Unbiased Photodiodes
128_sm05photodiodes_4
1285_sm05photodiodes_4
2715_sm05pd2a_2_sgl
4826_sm05pd1b_2_sgl
2716_sm1pd5a_sgl
4827_sm1pd1b_sgl

Mounted, Unbiased Photodiodes

PrintEmail

Mounted Photodiodes




  • 15 Models to Choose From
  • InGasAs, Silicon, Ge, or GaP Photodiodes
  • Ideal for measuring Pulsed and CW Sources
  • Housing with External SM05 or SM1 Threading

The SM05PD and SM1PD series of photodiodes consists of GaP, Si, InGaAs, or Ge photodiodes mounted in convenient SM05 (0.535"-40) or SM1 (1.035"-40) externally threaded tubes. The electrical output of the photodiode is provided through a standard SMA connector (SM05PD Series) or BNC connector (SM1PD Series) for quick connection to the measuring circuit.

The photodiodes come in either a Type A (cathode grounded) or Type B (anode grounded) arrangement. The pin codes for specific items may be found below. All models are ideal for measuring pulsed and CW sources. The insulated external thread on the main body makes these photodiodes compatible with all Thorlabs SM05 and SM1 Mounting Adapters.

Please refer to the tables below for more details on each model and note that these photodiodes are not calibrated. However, they are available with NIST-traceable calibration. Contact tech support for details. We also offer unmounted calibrated photodiodes.

Please note that inhomogeneities at the edges of the active area of the detector can generate unwanted capacitance and resistance effects that distort the time-domain response of the photodiode output. Thorlabs therefore recommends that the incident light on the photodiode is well centered on the active area. This can be accomplished by placing a focusing lens or pinhole in front of the detector element.

 


SM05-Threaded Mounted Photodiodes, Cathode Grounded

 

Item #DetectorRise/Fall
Time (ns)
Active Area
(Dimensions)
NEP
(W/Hz1/2)
Dark
Current
Spectral
Range (nm)
MaterialJunction
Capacitancea
Responsivity Plots
SM05PD7A FGAP71 1 / 140b 4.8 mm2 (Ø2.5 mm) 1.3 x 10-14 40 pAc 150 - 550 GaP 1000 pF @ 0 V
SM05PD2A FDS010 1d 0.785 mm2 (Ø1.0 mm) 5.0 x 10-14 0.3 nA 200 - 1100 Si 7 pF @ 5 V
SM05PD1A FDS100 10d 13 mm2 (3.6 x 3.6 mm) 1.2 x 10-14 0.3 nA 350 - 1100 Si 65 pF @ 5 V
SM05PD4A FGA10 7d 0.8 mm2 (Ø1.0 mm) 2.5 x 10-14 1.1 nAe 800 - 1700 InGaAs 65 pF @ 5 V
SM05PD5A FGA21 66/ 66f 3.1 mm2 (Ø2.0 mm) 3.0 x 10-14 70 nAc 800 - 1800 InGaAs 180 pF @ 3 V
SM05PD6A FDG03 500g 7.1 mm2 (Ø3.0 mm) 1.0 x 10-12 4.0 µAc 800 - 1800 Ge 3.25 nF @ 1 V

 

  • Typical values, RL = 50 Ohms
  • Measured at 50 Ohm load and 5 V bias
  • Max
  • Measured at 50 Ohm load and 12 V bias
  • @ -5 V Bias
  • Measured at 50 Ohm load and 0 V bias
  • Measured at 50 Ohm load and 3 V bias

 

SM05-Threaded Mounted Photodiodes, Anode Grounded

 

Item #DetectorRise/Fall
Time (ns)
Active Area
(Dimensions)
NEP
(W/Hz1/2)
Dark
Current
Spectral
Range (nm)
MaterialJunction
Capacitancea
Responsivity Plots
SM05PD1B FDS100 10b 13 mm2 (3.6 x 3.6 mm) 1.2 x 10-14 0.3 nA 350 - 1100 Si 65 pF @ 5 V
SM05PD2B FDS010 1b 0.785 mm2 (Ø1.0 mm) 5.0 x 10-14 0.3 nA 200 - 1100 Si 7 pF @ 5 V

 

  • Typical values, RL = 50 Ohms
  • Measured at 50 Ohm load and 5 V bias

 

SM1-Threaded Mounted Photodiodes, Cathode Grounded

 

Item #DetectorRise/Fall
Time (ns)
Active Area
(Dimensions)
NEP
(W/Hz1/2)
Dark
Current
Spectral
Range (nm)
MaterialJunction
Capacitancea
Responsivity Plots
SM1PD2A - 45b 10 mm x 10 mm
Behind Ø9 mm Clear Aperture
5.5 x 10-14 1.0 µAc 200 - 1100 Si 1.75 nF @ 0V
SM1PD1A FDS1010 40b 2.07 x 10-13 1.05 nAc 400 - 1100 Si 432 pF @ 5V
SM1PD5A - 3000d 4 x 10-12 50 µAc 800 - 1800 Ge 30 nF @ 1 V

 

  • Typical values, RL = 50 Ohms
  • Measured at 50 Ohm load and 5 V bias
  • Max

 

SM1-Threaded Mounted Photodiode, Anode Grounded

 

Item #DetectorRise/Fall
Time (ns)
Active Area
(Dimensions)
NEP
(W/Hz1/2)
Dark
Current
Spectral
Range (nm)
MaterialJunction
Capacitancea
Responsivity Plots
SM1PD1B FDS1010 40b 10 mm x 10 mm
Behind Ø9 mm Clear Aperture
2.07 x 10-13 1.05 nAc 400 - 1100 Si 432 pF @ 5V

 

  • Typical values, RL = 50 Ohms
  • Measured at 50 Ohm load and 5 V bias
  • Max

 

ABOUT US

Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

contact us

Tel               +966 35823441
Fax               +966 35823441
Egypt Mobile  +2 0120 7577664
KSA Mobile     +966 545 991188
Email             This email address is being protected from spambots. You need JavaScript enabled to view it.

newsletter