INDUSTRIAL PART REFERENCE
HamamatsuHamamatsu R649
Hamamatsu R649 appears in the Axiparts catalogue as an industrial component. Additional attributes captured from the manufacturer record include tube diameter 51 mm, photosensitive surface shape Square, photosensitive surface size 5 x 8 mm, spectral response short 300 nm, spectral response long 850 nm, spectral response peak 420 nm and spectral response curve no 500. Also captured for this reference are photocathode material Multialkali, window material Borosilicate glass, dynode structure Box, number of dynode stages 12, anode to cathode voltage maximum rating 1500 V and average anode current maximum rating 0.01 mA. In addition the manufacturer file lists anode to cathode applied voltage 1000 V, cathode luminous sensitivity min 80 uA/lm, cathode luminous sensitivity typ 120 uA/lm, red sensitivity ratio r 68 typ 0.2 and cathode radiant sensitivity typ 51 mA/W. The same source record continues with anode luminous sensitivity min 100 A/lm, anode luminous sensitivity typ 800 A/lm, anode radiant sensitivity typ 3.4 x 10 5 A/W, gain typ 6.7 x 10 6, rise time typ 13 ns and transit time typ 70 ns. The record further documents anode dark count typ 200 s -1. The attributes listed here are drawn from manufacturer-verified source records, and no value has been interpolated or copied from a similar part.
Hamamatsu
R649
Industrial component
PROCUREMENT NOTE
Accurate identification before quotation
The complete Hamamatsu R649 reference is used as the starting point for sourcing. Price, availability, lead time and application-specific compatibility are confirmed during quotation review.
19 technical details shown below.
TECHNICAL DATA AND EVIDENCE
Technical properties and reference data
| Property | Value | Evidence |
|---|---|---|
| anode dark count typ | 200 s -1 | Checked 2026-08-24 |
| anode luminous sensitivity min | 100 A/lm | Checked 2026-08-24 |
| anode luminous sensitivity typ | 800 A/lm | Checked 2026-08-24 |
| anode radiant sensitivity typ | 3.4 x 10 5 A/W | Checked 2026-08-24 |
| Voltage | 1000 V | Checked 2026-08-24 |
| Voltage | 1500 V | Checked 2026-08-24 |
| Current | 0.01 mA | Checked 2026-08-24 |
| cathode luminous sensitivity typ | 120 uA/lm | Checked 2026-08-24 |
| dynode structure | Box | Checked 2026-08-24 |
| gain typ | 6.7 x 10 6 | Checked 2026-08-24 |
| Material | Multialkali | Checked 2026-08-24 |
| photosensitive surface shape | Square | Checked 2026-08-24 |
| photosensitive surface size | 5 x 8 mm | Checked 2026-08-24 |
| red sensitivity ratio r 68 typ | 0.2 | Checked 2026-08-24 |
| spectral response curve no | 500 | Checked 2026-08-24 |
| spectral response long | 850 nm | Checked 2026-08-24 |
| spectral response peak | 420 nm | Checked 2026-08-24 |
| spectral response short | 300 nm | Checked 2026-08-24 |
| Material | Borosilicate glass | Checked 2026-08-24 |
Revisions and regional variants may exist. Send an RFQ with the exact part number and quantity for final confirmation.
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Price, availability and lead time are confirmed only after the exact reference, requested quantity and delivery destination are reviewed. Axiparts is an independent industrial sourcing platform unless a written quotation states otherwise.
Hamamatsu R649 FAQ
What is Hamamatsu R649?
Hamamatsu R649 appears in the Axiparts catalogue as an industrial component. Additional attributes captured from the manufacturer record include tube diameter 51 mm, photosensitive surface shape Square, photosensitive surface size 5 x 8 mm, spectral response short 300 nm, spectral response long 850 nm, spectral response peak 420 nm and spectral response curve no 500. Also captured for this reference are photocathode material Multialkali, window material Borosilicate glass, dynode structure Box, number of dynode stages 12, anode to cathode voltage maximum rating 1500 V and average anode current maximum rating 0.01 mA. In addition the manufacturer file lists anode to cathode applied voltage 1000 V, cathode luminous sensitivity min 80 uA/lm, cathode luminous sensitivity typ 120 uA/lm, red sensitivity ratio r 68 typ 0.2 and cathode radiant sensitivity typ 51 mA/W. The same source record continues with anode luminous sensitivity min 100 A/lm, anode luminous sensitivity typ 800 A/lm, anode radiant sensitivity typ 3.4 x 10 5 A/W, gain typ 6.7 x 10 6, rise time typ 13 ns and transit time typ 70 ns. The record further documents anode dark count typ 200 s -1. The attributes listed here are drawn from manufacturer-verified source records, and no value has been interpolated or copied from a similar part.
What are the technical specifications of Hamamatsu R649?
anode dark count typ: 200 s -1; anode luminous sensitivity min: 100 A/lm; anode luminous sensitivity typ: 800 A/lm; anode radiant sensitivity typ: 3.4 x 10 5 A/W; Voltage: 1000 V; Voltage: 1500 V; Current: 0.01 mA; cathode luminous sensitivity typ: 120 uA/lm. The full manufacturer specification is confirmed during RFQ review.
How can I request a quote for Hamamatsu R649?
Submit the exact reference Hamamatsu R649 with quantity and destination country through the RFQ form on this page. Price, availability and lead time are confirmed in a written quotation.