H14950-103

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Product Specification Sheet: H14950-103

Category	Parameter	Specification / Value	Notes / Conditions
General Information	Manufacturer Part Number	H14950-103	The -103 suffix defines the precise variant.
	Base Part Number	H14950	Modular photodetector assembly.
	Product Type	Amplified Photodetector Module	Integrated detector, HV supply, and amplifier.
	Description	Compact Module with PMT (Bialkali Cathode, UV Glass), -1000V	The -103 code defines these attributes.
	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)	The ‘1’ in -103 denotes this cathode.
	Window Material	UV Glass	The ‘0’ in -103 specifies this window for UV transmission.
	Spectral Response Range	160 nm to 650 nm	Extended UV response due to UV glass window.
	Peak Wavelength (λp)	400 nm	Peak sensitivity in the 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	-1000 V DC	The ‘3’ in -103 often denotes this voltage.
	Gain (Overall)	Adjustable, e.g., 10⁵ to 10⁸	Set via external potentiometer or internal switch.
	Output Voltage Range	0 to +5 V
	Bandwidth	DC to 100 kHz
	Dark Output (Typ.)	< 2 mV	Output voltage in complete darkness.
Performance & Ratings
	Operating Temperature	0°C to +50°C
	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)	50mm x 50mm x 40mm	Example size.
	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 lenses or filters.
Application & Usage
	Primary Applications	UV Spectroscopy, UV Light Detection, Fluorescence in UV range, Laser Detection
	Key Feature	UV-Glass Window for Enhanced Ultraviolet Response	The -103 variant’s defining characteristic.