C10439-03

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Technical Specifications: C10439-03

Parameter Category	Parameter	Symbol	Min	Typ	Max	Unit	Conditions
General Information	Manufacturer Part Number	–		C10439-03
	Description	–		Compact Head-On PMT Module (Ultra-Low Noise)			Integrated voltage divider circuit
	Photosensitive Area	–		Ø 3		mm	Key differentiator for low noise
	Window Material	–					UV-Transparent Glass / Fused Silica
	Cathode Type	–					Low Noise Bialkali
	Package	–					Shielded metal housing with integrated base
Absolute Maximum Ratings
	Anode Supply Voltage	V<sub>AN</sub>	-0.5		1500	V
	Anode Average Current	I<sub>A</sub>			0.1	mA
	Storage Temperature	T<sub>stg</sub>	-30		70	°C
	Operating Temperature	T<sub>op</sub>	-40		50	°C	Wider low-end range for cooling
Recommended Operating Conditions
	Operating Voltage (Anode to Cathode)	V<sub>OP</sub>	600	800 – 1000	1200	V
	Recommended Divider Current	I<sub>div</sub>		0.1		mA
	Supply Voltage for Module	V<sub>CC</sub>	+11	+12	+15	V	For internal HV circuit
Spectral Response Characteristics
	Cathode Radiant Sensitivity	K		65		mA/W	λ = 400 nm
	Cathode Luminous Sensitivity	S<sub>K</sub>		80		μA/lm
	Anode Luminous Sensitivity	S<sub>A</sub>	40	90		A/lm	V<sub>OP</sub> = 1000V
	Spectral Response Range	λ	300		650	nm
	Peak Wavelength (Cathode)	λ<sub>p</sub>		400		nm
Gain & Dark Characteristics (Key Differentiator)
	Electron Multiplication Gain	G		1.0 x 10<sup>6</sup>			V<sub>OP</sub> = 1000V, Typical
	Anode Dark Current	I<sub>DA</sub>		0.1	0.5	nA	V<sub>OP</sub> = 1000V, T<sub>a</sub>=25°C
	Dark Count Rate	DCR		10	25	cps	V<sub>OP</sub> = 1000V, T<sub>a</sub>=25°C
	Dark Count Rate (Cooled)	DCR		< 1		cps	T<sub>a</sub> = -20°C
Time Response Characteristics
	Rise Time	t<sub>r</sub>		2.2		ns
	TTS (Transit Time Spread)	TTS		2.5		ns	FWHM
	Electron Transit Time	t<sub>t</sub>		21		ns
Output
	Output Connector	–					BNC (Anode Output)
	Output Impedance	Z<sub>out</sub>		50		Ω