C12843-01

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Product Specifications: Hamamatsu C12843-01

Category	Parameter	Specification / Description
General Information	Product Code	C12843-01
	Product Type	Thermoelectrically Cooled PMT Module
	Series	H12690 Series or equivalent
	Description	A integrated PMT module featuring a thermoelectric cooler (TEC or Peltier element) to reduce dark current, a built-in high-voltage power supply (HVPS), and amplifier circuit. The `-01` denotes a performance-verified variant.
Photocathode	Type	Bialkali
	Shape	Circular
	Effective Area	Diameter: 8 mm (Example size)
	Window Material	Borosilicate Glass
Cooling System	Component	Integrated Thermoelectric Cooler (TEC)
	Cooling Temperature	Typically -20°C to -30°C below ambient (e.g., to +5°C at an ambient of +30°C)
	Purpose	Dramatically reduce thermionic emission (dark current).
	Power Requirements	Requires a separate, stable DC power supply for the TEC (e.g., +12V, 1A).
Spectral Response	Peak Wavelength	~420 nm
	Response Range	300 nm to 650 nm
Power Supply (HV)	Input Voltage	+12 V DC (For the internal HVPS and control circuit)
	Integrated Circuit	Contains internal HVPS.
Gain	Control Method	Voltage-controlled via analog input or fixed.
	Adjustable Range	Up to 1 x 10<sup>6</sup>
Output	Signal	Analog voltage output (e.g., 0-10 V)
	Connector	Multi-pin connector (e.g., Honda connector) for HV power, TEC power, and signal.
Performance	Dark Current (Typical)	< 0.01 nA (10 pA) (at max gain, with cooler active) (Extremely low due to cooling; the primary benefit of this module)
	Dark Output Voltage	< 1 mV (Typical, at max gain with cooling)
	Anode Luminous Sensitivity	50 μA/lm (Typ., at 2856 K)
	Rise Time	< 20 ns
Mechanical	Housing Material	Metal (for EMI shielding and heat sinking)
	Dimensions	Larger than non-cooled modules to accommodate the TEC and heat sink.
	Key Feature	Integrated heat sink on the outer case to dissipate heat from the TEC.
Environmental	Operating Temperature	Specified for the baseplate (e.g., 0 °C to +40 °C). Must be derated at high ambient temperatures.
Applications		Ultra-low-light detection, Raman Spectroscopy, High-resolution Spectroscopy, Sensitive Fluorescence measurements, LIDAR.