C7246-01

Delivery:

Payment:

Means of Payment

For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and wire transfer.

RFQ (Request for Quotations)

It is recommended to request for quotations to get the latest prices and inventories about the part.
Our sales will reply to your request by email within 24 hours.

IMPORTANT NOTICE

1. You’ll receive an order information email in your inbox. (Please remember to check the spam folder if you didn’t hear from us).
2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Product Specifications: Hamamatsu C7246-01

Category	Parameter	Specification / Description
General Information	Product Code	C7246-01
	Product Type	Head-On Type Photomultiplier Tube
	Variant Description	Selected version of the C7246, typically for low dark current or a guaranteed maximum dark current specification.
Photocathode	Type	Bialkali
	Form	Semi-Transparent
	Effective Area	Diameter: 51 mm (2 inches)
	Window Material	Borosilicate Glass
Spectral Response	Peak Wavelength	~420 nm
	Response Range	300 nm to 650 nm
Dynode System	Structure	Venetian Blind (10 stages)
	Material	Cu-Be
Gain	Typical Value	2 x 10<sup>6</sup> (at 1000 V)
	Maximum	1 x 10<sup>8</sup> (at 1500 V)
Voltage	Operating Range (Anode to Cathode)	-1000 V to -1500 V DC
	Polarity	Negative High Voltage (Cathode)
	Recommended Divider Ratio	Requires an external voltage divider circuit. (e.g., Hamamatsu E1198-XX series)
Current	Average Anode Current	100 μA (max)
	Average Output Current (Linear)	10 mA (max, for pulsed operation)
Performance	Dark Current (Typical)	5 nA (at 1000 V, room temp) (Likely lower and more tightly controlled than the standard C7246)
	Dark Current (Maximum Guaranteed)	< 20 nA (e.g., at 1000 V) (This is the key differentiating feature of the -01 variant)
	Anode Luminous Sensitivity	50 μA/lm (Typ., at 2856 K)
	Cathode Luminous Sensitivity	70 μA/lm (Typ., at 2856 K)
	Rise Time	14 ns
	TTS (Transit Time Spread)	5.0 ns
Mechanical	Housing	Head-on type with stem at base
	Base	No integrated socket; requires external socket (e.g., Hamamatsu E1198-07)
	Overall Length	Approx. 135 mm
	Bulb Diameter	Approx. 58 mm
Environmental	Operating Temperature	-20 °C to +50 °C
	Storage Temperature	-20 °C to +60 °C
	Magnetic Shielding	Requires a mu-metal magnetic shield (e.g., Hamamatsu A50-XX) for stable operation.
Applications		Low-light applications requiring high signal-to-noise ratio: Liquid Scintillation Counting, High-Energy Physics, Low-level Radiation Spectroscopy, Sensitive LIDAR.