H14601-04

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Product Specification Sheet: H14601-04

Category	Parameter	Specification / Value	Notes / Conditions
General Information	Manufacturer Part Number	H14601-04	The -04 suffix defines this specific variant.
	Base Part Number	H14601	Denotes a different model than H14600.
	Product Type	Head-On Type Photomultiplier Tube (PMT)
	Description	PMT with Bialkali Photocathode, -800V Operating Voltage, 8-Stage	Example description; the -04 defines this.
	Manufacturer	Hamamatsu Photonics K.K.
	RoHS Status	Exempt	Due to specialized glass and materials.
Optical Characteristics
	Spectral Response Range	300 nm to 650 nm	Standard visible light range for bialkali.
	Peak Wavelength (λp)	400 nm
	Cathode Material	Bialkali (Sb-K-Cs)
	Window Material	Borosilicate Glass
Electrical & Gain Characteristics
Operating Voltage (Variant -04)	-800 V DC	*The -04 suffix often specifies the voltage rating.*
	Number of Dynode Stages	8	The H14601 model may have fewer stages than H14600.
	Gain (Typical)	2.0 x 10⁵	Lower gain due to fewer stages and/or lower voltage.
	Dark Current (Typ.)	1 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	Beneficial for low-light applications
Physical Characteristics
	Package / Shape	Head-On (Circular) / Cylindrical	The H14601 may have a different size.
	Base Type	8-Pin (Octal) Base
	Dimensions (Dia. x L)	22 mm diameter	Example of a potentially smaller size.
	Weight	~45 g
Application & Usage
	Primary Applications	Low-Light Level Detection, Spectroscopy, Medical Analyzers	Applications requiring lower voltage and gain.
	Handle with Care	Extremely sensitive to light, mechanical shock, and humidity.	Keep in complete darkness until installed.