Photon counting modules: C11202 series

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Features

High sensitivity in short wavelength range

Low dark count

Low afterpulse

Applications

Low-light-level measurement

Particle diameter measurement

Fluorescence measurement

Analytical instrument

Structure

Parameter	Symbol	C11202-050	C11202-100	Unit
Internal photodetector	-	Single-pixel photon counter		-
Photoseinsitive area size	-	ϕ50	ϕ100	μm

Absolute maximum ratings

Parameter	Symbol	Condition	C11202-050	Unit
Supply voltage	Vs		±6	V
Operating temperature	Topr	No condensation	-10 to +40	°C
Storage temperature	Tstg	No condensation	-20 to +70	°C

Electrical and optical characteristics (Typ. Ta=25 °C, λ=λp, Vs=±5 V, unless otherwise noted)

Parameter	Symbol	Condition	C11202-050			C11202-100			Unit
Parameter	Symbol	Condition	Min.	Typ.	Max.	Min.	Typ.	Max.
Spectral response range	λ		320 to 900			320 to 900			nm
Peak sensitivity wavelength	λp	No condensation		450			450		nm
Element temperature	Td	No condensation	-	-20	-	-	-20	-	°C
Photon detection efficiency	PDE		60	70	-	60	70	-	%
Dark count	-		-	7	25	-	30	100	cps
Afterpulse probability	-	50ns~100ns	-	0.1	-	-	0.1	-	%
Comparator output	-		TTL compatible			TTL compatible			-
Maximum count rate	-		-	30	-	-	20	-	Mcps

Electrical characteristics

Parameter	Symbol	Condition	Min.	Typ.	Max.	Unit
Supply voltage	+Vs		+4.75	+5	+5.25	V
Supply voltage	-Vs		-4.75	-5	-5.25	V
Current consumption	Ic	+Vs	-	+200	+1000	mA
Current consumption		-Vs	-	-20	-40	mA

Block diagram

Connection example

Measurement example

Photon detection efficiency vs. wavelength

Linearity (typical example)

Dimensional outline (unit: mm)