E989-02

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Product Specifications: E989-02 – PMT Voltage Divider Circuit

Category	Specification	Details / Notes
General Model Info	Product Code	E989-02
	Product Type	Voltage Divider Circuit (PMT Base)
	Manufacturer	Hamamatsu Photonics
	Primary Use	To supply graded high voltage and extract signal from a PMT.
Compatibility	Intended PMT Type	Head-on type PMTs (e.g., R3896, R6350, R9880U series)
	Socket Type	10-stage PMT with standard pin arrangement (e.g., 12-pin).
Electrical	Input Voltage (V~in~)	+900 V to +1500 V DC (Positive polarity)
	Output Signal	Positive pulse
	Output Connector	BNC connector
	Divider Type	Standard resistor divider network
	Divider Ratio	Fixed, optimized for the intended PMT type.
	Polarity	Cathode Grounded / Anode at High Voltage
	Capacitive Decoupling	Typically included on final dynodes for pulse operation.
Performance	Rise Time	< 5 ns (Dependent on PMT and circuit values)
	Maximum Average Anode Current	100 μA (To maintain linearity and prevent damage)
	Output Impedance	High (Typically 1 kΩ or less, defined by resistor values)
Mechanical	Housing Material	Plastic (PBT)
	PMT Socket	Integrated, with pin guides and securing mechanism.
	High Voltage Input	SHV connector (Standard High Voltage)
	Signal Output	BNC connector
	Dimensions	Varies, typically a cylindrical or rectangular base.
	Shielding	May include a metal shield cap option (often sold separately).
Environmental	Operating Temperature	-10 °C to +50 °C
	Storage Temperature	-20 °C to +60 °C
	Humidity	Non-condensing