H14601-103

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Product Specification Sheet: H14601-103

Category	Parameter	Specification / Value	Notes / Conditions
General Information	Manufacturer Part Number	H14601-103	The -103 suffix defines the precise variant.
	Base Part Number	H14601	Denotes a specific model (e.g., 19mm diameter tube).
	Product Type	Head-On Type Photomultiplier Tube (PMT)
	Description	19mm PMT with Bialkali Photocathode, UV Glass Window, -1000V Operating Voltage	The -103 code defines these attributes.
	Manufacturer	Hamamatsu Photonics K.K.
	RoHS Status	Exempt	Due to specialized glass and materials.
Optical Characteristics
	Spectral Response Range	160 nm to 650 nm	Extended UV range due to UV glass window.
	Peak Wavelength (λp)	400 nm	Peak sensitivity in the visible range.
	Cathode Material	Bialkali (Sb-K-Cs)	The ‘1’ in -103 often denotes this cathode.
	Window Material	UV Glass	The ‘0’ in -103 may specify this window type.
Electrical & Gain Characteristics
	Operating Voltage (Variant -103)	-1000 V DC	The ‘3’ in -103 often denotes this voltage rating.
	Number of Dynode Stages	10	Common for this type of PMT.
	Gain (Typical)	1.0 x 10⁶	At the rated operating voltage (-1000V).
	Dark Current (Typ.)	2 nA	At rated voltage and room temperature.
	Anode Current (Average)	100 µA
Performance & Ratings
	Operating Temperature	-30°C to +50°C
	Storage Temperature	-40°C to +70°C
	Cooling	Recommended for low-light applications	To reduce dark current.
Physical Characteristics
	Package / Shape	Head-On (Circular) / Cylindrical
	Base Type	8-Pin (Octal) Base
	Dimensions (Dia. x L)	19 mm (0.75 inch) diameter	The H14601 series often denotes this size.
	Weight	~35 g
Application & Usage
	Primary Applications	UV Spectroscopy, Low-Light Level Detection in UV/Visible range, Medical Diagnostics
	Handle with Care	Extremely sensitive to light, mechanical shock, and humidity.	Keep in complete darkness until installed.