| Supply voltage (DC) | 425 V |
| Weight | 5 G |
| Supply Ability | 1000pcs/Month |
| Payment Terms | L/C, D/A, D/P, T/T, , |
| Delivery Time | 3-5workingdays |
| Packaging Details | Standard Package |
| Sensitivity type | 1200 Min-1 |
| Peak current | 200 MA |
| Background maximum | 10 Min |
| Spectral response (short) | 185 Nm |
| Discharge start voltage | (DC) 260 V |
| Spectral response (long) | 300 Nm |
| Brand Name | Hamamatsu |
| Model Number | R12257 |
| Place of Origin | Japan |
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Product Specification
| Supply voltage (DC) | 425 V | Weight | 5 G |
| Supply Ability | 1000pcs/Month | Payment Terms | L/C, D/A, D/P, T/T, , |
| Delivery Time | 3-5workingdays | Packaging Details | Standard Package |
| Sensitivity type | 1200 Min-1 | Peak current | 200 MA |
| Background maximum | 10 Min | Spectral response (short) | 185 Nm |
| Discharge start voltage | (DC) 260 V | Spectral response (long) | 300 Nm |
| Brand Name | Hamamatsu | Model Number | R12257 |
| Place of Origin | Japan | ||
| High Light | R12257 UV Photodiode Sensor ,1200 Min-1 UV Photodiode Sensor | ||
R12257 Flame Sensors UV TRON UV On Off High Sensitivity
The UVTRON UV On/Off detector utilizes the metal photoelectric effect and the gas multiplication effect. It has a narrow spectral sensitivity of 185 nm to 300 nm and is completely insensitive to visible light. Unlike semiconductor detectors, it does not require an optical visible light cutoff filter, making it easy to use.
| Discharge holding voltage (DC) | 170 V |
| Sensitivity typical | 1200 min-1 |
| Background max. | 10 min-1 |
| [Recommended operating parameters] Supply voltage (DC) | 310 V +/- 25 V |
| [Recommended operating parameters] Average discharge current | 2 mA |
| [Recommended operating parameters] Quench time min. | 1 ms |
| Applicable socket (sold separately) | E678-9C |
1: Value was measured at wavelength 200 nm and intensity of light 10 pW/cm2.
*2: Value was measured at recommended operating conditions under indoor lighting (approx. 500 lx).
*3: Value for sustained electrical discharge at recommended operating conditions.
*4: When building an external CR quenching circuit, set the circuit constants so that the quenching time exceeds this value.
*5: If the sensor is used at this value, it will considerably reduce the life of the sensor. Therefore, use the sensor at the recommended operating conditions.
*6: This is the peak value of pulse current that can instantaneously flow. This is for when the half-value width of the peak value is 10 μs or less.
*7: Value was measured at an action time of 11 ms using the IEC 60068-2-27 shock test method.
*8: min-1 indicates counts/min.
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Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
900000-1000000
Employee Number:
50~80
Ecer Certification:
Verified Supplier
Shenzhen Yijiajie Electronic Technology Co., Ltd. has long been deeply engaged in the field of sensing and control technology, specializing in sensor solutions and technical support. The company is an authorized distributor for City, and Siargo, and maintains long-term, stable partnerships with othe... Shenzhen Yijiajie Electronic Technology Co., Ltd. has long been deeply engaged in the field of sensing and control technology, specializing in sensor solutions and technical support. The company is an authorized distributor for City, and Siargo, and maintains long-term, stable partnerships with othe...
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