S11865-128G

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Parameter Table: S11865-128G Photomultiplier Tube Module

The following table lists the key electrical, optical, and mechanical parameters for the Hamamatsu S11865-128G PMT module.

Parameter Category	Parameter	Symbol	Min.	Typ.	Max.	Unit	Conditions
General	Model Number	—		S11865-128G		—	12-stage, head-on type
	Product Type	—		PMT Module		—	Integrated HV power supply
Optical Characteristics	Spectral Response Range	λ	300		650	nm	—
	Peak Wavelength	λₚ		420		nm	—
	Cathode Radiant Sensitivity	—		65		mA/W	@ λₚ (420 nm)
	Anode Luminous Sensitivity	Sₐ	50			A/lm	Vᵣ = 1000 V, T_a = 25°C
	Cathode Luminous Sensitivity	Sₖ	80			μA/lm	Vᵣ = 1000 V, T_a = 25°C
	Dark Current	I_d		0.3	3	nA	Sₐ = 100 A/lm, Vᵣ = 1000 V
Electrical Characteristics	Supply Voltage	Vᵣ	700	1000	1250	V DC	—
	Supply Current	Iᵣ		50		μA	Vᵣ = 1000 V, No light
	Output Voltage	V_out			5	V	—
	Output Current	I_out			100	μA	—
	Gain	G	1.0 x 10⁶			—	Vᵣ = 1000 V
	Rise Time	t_r		2.2		ns	—
	Fall Time	t_f		2.7		ns	—
	TTS (Transit Time Spread)	σ		1.5		ns	—
Mechanical Characteristics	Window Material	—		Borosilicate Glass		—	—
	Photosensitive Area	—		Ø 8		mm	—
	Housing Material	—		Metal		—	Electromagnetic shielding
	Connector	—		BNC		—	Output signal
	Power Supply	—		Cable (Red/Black)		—	—
	Dimensions (W x H x L)	—		28 x 28 x 48		mm	—
	Weight	—		~40		g	—
Environmental	Operating Temperature	T_op	-30		50	°C	—
	Storage Temperature	T_stg	-40		70	°C	—
	Soldering Temperature	T_sol			260	°C	< 5 seconds