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Radiation sensors
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Series X: Detectors for ionizing radiation

Alpha, beta, gamma, and X-ray radiation can be detected with silicon PIN photodiodes either directly via the absorption in the crystal lattice or indirectly via the measurement of the luminescence radiation of a scintillation crystal. The Series X from First Sensor features optimized silicon PIN photodiodes, which form wide, fully depleted space-charge regions even at low reverse voltages in order to guarantee the maximum absorption of radiation. For high-energy radiation we offer detectors with a CsI:TI scintillation crystal.

Special features
  • Very low dark current signals
  • Very low capacitance levels
  • Minimal series resistance at full depletion
Downloads
Radiation sensors of First SensorTechnical specifications and PDF datasheet
Order # Chip Package Active Area
Size (mm) /
Area (mm²)
 Dark
current
(nA)		 Capacitance
(pF)		 Gamma-
energy
(KeV)		 Scintillator
CsI (TI)		 window
50190301 X5-γ TO8S Ø 2.52 / 5 0.01 2.5 >1 no Ø 6 mm
501559 X7-F CSP 2.8 x 2.8 / 6.2 0.015 12 - no -
50190401 X10-γ TO8Si Ø 3.75 / 10 0.02 4.5 >1 no Ø 6 mm
50190001 X10-γ TO8S Sc Ø3.75 / 10 0.02 4.5 2…>1000 yes Ø 6 mm
501907 X10-6 TO39 Ø 3.57 / 10 0.5 18 >5 no epoxy dome
501401 X100-7 LCC10 10 x 10 / 100 3 80 >5 no black epoxy
501400 X100-7 CerPin 10 x 10 / 100 3 80 >5 no black epoxy
50147702 X100-7 CerPin 10 x 10 / 100 5 80 5..>1000 4 mm white coating
50147701 X100-7 CerPin 10 x 10 / 100 5 80 5..>1000 8 mm white coating
Technical specification and PDF datasheet *
Order # Package Active Area
Size (mm) /
Area (mm²)
50190301 TO8S Ø 2.52 / 5
501559 CSP 2.8 x 2.8 / 6.2
50190401 TO8Si Ø 3.75 / 10
50190001 TO8S Sc Ø3.75 / 10
501907 TO39 Ø 3.57 / 10
501401 LCC10 10 x 10 / 100
501400 CerPin 10 x 10 / 100
50147702 CerPin 10 x 10 / 100
50147701 CerPin 10 x 10 / 100
* For large screens, this table contains more technical specifications. For mobile devices, they are not shown.

Photodiode arrays

Our linear PIN photodiode arrays are optimized for CsI:Tl scintillator luminescence detection and designed for linear multi-device assembly.

Technical specifications and PDF datasheet
Order # Chip Package Elements Pitch
(mm)		 Active Area
Size (mm) /
Area (mm²)
 Dark current
at10 mV (pA)		 Capacitance
at 0 V (pF)		 Scintillator
50146101 16XA1.9-B DIL18 full 16 1.275 0.9 x 2.15 / 1.94 5 250 optional
50146102 16XA1.9-B DIL18 slim 16 1.275 0.9 x 2.15 / 1.94 5 250 optional
50146201 16XA2.6-A DIL18 full 16 1.575 1.2 x 2.15 / 2.58 5 135 optional
50146202 16XA2.6-A DIL18 slim 16 1.575 1.2 x 2.15 / 2.58 5 135 optional
50146301 16XA5.2-A DIL18 full 16 2.525 2.15 x 2.4 / 5.16 7.5 240 optional
50146302 16XA5.2-A DIL18 slim 16 2.525 2.15 x 2.4 /  5.16 7.5 240 optional

Technical specification and PDF datasheet *
Order # Package Active Area
Size (mm) /
Area (mm²)
50146101 DIL18 full 0.9 x 2.15 / 1.94
50146102 DIL18 slim 0.9 x 2.15 / 1.94
50146201 DIL18 full 1.2 x 2.15 / 2.58
50146202 DIL18 slim 1.2 x 2.15 / 2.58
50146301 DIL18 full 2.15 x 2.4 / 5.16
50146302 DIL18 slim 2.15 x 2.4 /  5.16
* For large screens, this table contains more technical specifications. For mobile devices, they are not shown.
For price and delivery information or any other question please contact First Sensor.
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In the growth market of sensor systems, First Sensor develops and produces customer-specific sensors, electronics, modules and complex systems for the ever-increasing number of applications in the industrial, medical, and mobility target markets. As a solution provider the company offers complete development services from a first draft and proof of concept up to the development of prototypes and finally serial production. First Sensor offers comprehensive development expertise, state-of-the-art packaging technologies and production capacities in clean rooms from ISO class 8 to 5.
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In the growth market of sensor systems, First Sensor develops and produces customer-specific sensors, electronics, modules and complex systems for the ever-increasing number of applications in the industrial, medical, and mobility target markets. As a solution provider the company offers complete development services from a first draft and proof of concept up to the development of prototypes and finally serial production. First Sensor offers comprehensive development expertise, state-of-the-art packaging technologies and production capacities in clean rooms from ISO class 8 to 5.
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