Compact Head-on PMT Photosensor Modules H7826 Series The H7826 series photosensor modules consist of a 19-mm (3/4") diameter head-on photomultiplier tube and a high-voltage power supply circuit. The length of the photomultiplier tube used here is short compared to other photomultiplier tubes of the same diameter, making it compact even though it has a large light input diameter of 15 mm. The H7826 series also has excellent resistance to vibration and shock compared to other photomultiplier tubes, making it ideal for use in portable equipment. Product Variations Type No. H7826 H7826P H7826-01 H7826P-01 Spectral Response 300 nm to 650 nm 300 nm to 850 nm Features For general applications in visible range For photon counting For general applications in visible to near IR range For photon counting This product can't be used at vacuum environment or reduced pressure environment. Specifications Parameter Anode Cathode Input Voltage Max. Input Voltage Max. Input Current Max. Output Signal Current Max. Control Voltage Recommended Control Voltage Adjustment Range Effective Area Peak Sensitivity Wavelength Min. Luminous Sensitivity Typ. Blue Sensitivity Index (CS 5-58) Typ. Red/White Ratio Typ. Radiant Sensitivity *1 Typ. Min. Luminous Sensitivity *2 Typ. Radiant Sensitivity *1 *2 Typ. Typ. Dark Current *2 *3 Max. Gain *2 Min. Typ. Dark Count *3 *4 Max. Typ. Rise Time *2 2 5 Ripple Noise * * (peak to peak) Max. Max. Settling Time *6 Operating Ambient Temperature *7 Storage Temperature *7 Weight (at +25 °C) H7826 H7826P H7826-01 +11.5 to +15.5 +18 40 100 +1.2 (Input impedance 100 kΩ) +0.5 to +1.1 15 420 380 60 80 90 120 10.5 — — 0.2 85 49 420 60 90 10.5 — 85 30 1.3 × 104 3 20 — — — 1.8 × 106 200 500 1.5 0.5 0.2 +5 to +45 -20 to +50 70 380 80 120 — 0.2 49 — — — 3 20 10 50 4.7 × 104 H7826P-01 Unit V V mA µA V V mm nm µA/lm — — mA/W A/lm A/W nA 1 × 106 2000 3500 — s-1 ns mV s °C °C g *1: Measured at the peak sensitivity wavelength *2: Control voltage = +1.0 V *3: After 30 minutes storage in darkness *4: Control voltage: Plateau voltage *5: Cable RG-174/U, Cable length 450 mm, load resistance = 1 MΩ, load capacitance = 22 pF *6: The time required for the output to reach a stable level following a change in the control voltage from +1.0 V to +0.5 V. *7: No condensation 26 Current Output Type Photosensor Modules Characteristics (Cathode radiant sensitivity, Gain) TPMOB0143EA 107 CATHODE RADIANT SENSITIVITY (mA/W) 100 TPMOB0144EC H7826-01 106 10 H7826 GAIN H7826 105 1 H7826-01 104 0.1 200 300 400 600 500 700 800 103 0.5 900 0.6 0.7 0.8 0.9 1.0 1.1 1.2 CONTROL VOLTAGE (V) WAVELENGTH (nm) Sensitivity Adjustment Method VOLTAGE PROGRAMMING RESISTANCE PROGRAMMING SIGNAL OUTPUT LOW VOLTAGE INPUT(RED) GND (BLACK) Vref OUTPUT (BLUE) Vcont INPUT (WHITE) SIGNAL OUTPUT LOW VOLTAGE INPUT(RED) GND (BLACK) Vref OUTPUT (BLUE) Vcont INPUT (WHITE) +15 V GND +15 V GND MONITOR +0.5 V to +1.1 V • Electrically insulate the reference voltage output. • Adjust the control voltage to adjust the sensitivity. POWER SUPPLY PHOTOSENSOR MODULE CW POWER SUPPLY PHOTOSENSOR MODULE POTENTIOMETER (10 kΩ) When using a potentiometer, adjust sensitivity while monitoring the control voltage so it does not exceed +1.2 V. GND TPMOC0149ED Dimensional Outlines (Unit: mm) EFFECTIVE AREA 15 MIN. 18.6 ± 0.7 18 14.0 ± 0.5 50.0 +1.0 -0 56.0 +0.5 -0 THREADED HOLE for OPTION (4-M2 DEPTH: 5) 10.0 ± 0.5 FRONT VIEW SIGNAL OUTPUT BNC-R 19.0 ± 0.5 18.0 ± 0.5 0 +0.1 -0.3 18 25.0 ± 0.5 26.0 +0.5 -0 16.0 ± 0.5 POWER INPUT HIROSE HR10A-7R-6P MOUNTING THREADED HOLE (2-M3 DEPTH: 5) SIDE VIEW 1: GND 2: LOW VOLTAGE INPUT (+15 V) 3: Vcont INPUT (+0.5 V to +1.1 V) 4: Vref OUTPUT (+1.2 V) 5: NC 6: NC REAR VIEW Power cable with connector (HIROSE HR10A-7P-6S) is supplied with the H7826 series 700 ± 20 BLACK : GND RED : LOW VOLTAGE INPUT (+15 V) WHITE : Vcont INPUT (+0.5 V to +1.1 V) BLUE : Vref OUTPUT (+1.2 V) GREEN: NC TPMOA0005EE 27