H14951-01

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Product Specification Sheet: H14951-01

Category	Parameter	Specification / Value	Notes / Conditions
General Information	Manufacturer Part Number	H14951-01	The -01 suffix denotes the standard variant.
	Base Part Number	H14951	Signifies a different model from H14950.
	Product Type	Amplified Photodetector Module	Integrated detector, HV supply, and amplifier.
	Description	Compact Module with Standard PMT, -800V Operating Voltage	The -01 defines this base configuration.
	Manufacturer	Hamamatsu Photonics K.K.
	RoHS Status	Exempt	Due to specialized internal components.
Module Characteristics
	Internal Detector	Photomultiplier Tube (PMT)
	Photocathode Material	Bialkali (Sb-K-Cs)	Standard high-sensitivity cathode.
	Window Material	Borosilicate Glass	Standard glass for visible range.
	Spectral Response Range	300 nm to 650 nm	Standard visible light range.
	Peak Wavelength (λp)	400 nm	Peak sensitivity in the blue/visible range.
	Output Signal Type	Analog Voltage	e.g., 0 to +5 V proportional to light intensity.
	Supply Voltage	+12 V DC ±10%	Single low-voltage supply for the entire module.
Electrical Characteristics
	Internal HV Operating Voltage	-800 V DC	The -01 may specify this standard voltage.
	Gain (Overall)	Adjustable, e.g., 10⁴ to 10⁷	Set via external potentiometer or internal switch.
	Output Voltage Range	0 to +5 V
	Bandwidth	DC to 200 kHz	The H14951 may have a different bandwidth than H14950.
	Dark Output (Typ.)	< 1 mV	Output voltage in complete darkness.
Performance & Ratings
	Operating Temperature	0°C to +50°C	Standard range.
	Storage Temperature	-20°C to +60°C
	Cooling	Not required	For standard operation.
Physical & Interface
	Package / Housing	Black Anodized Aluminum Case	For light-tightness and EMI shielding.
	Dimensions (L x W x H)	45mm x 45mm x 35mm	Example; may differ from H14950.
	Electrical Connection	Multi-pin Connector (e.g., 9-pin D-Sub)	For power, signal output, and gain control.
	Optical Input	SM1 (1.035″-40) Threaded Port	Standard size for attaching accessories.
Application & Usage
	Primary Applications	General Purpose Low-Light Detection, Fluorometry, Densitometry
	Key Feature	Standard Configuration for Versatile Use	The -01 variant’s balanced characteristics.