{"product_id":"thorlabs-pda55-amplified-si-photodetector-module","title":"Thorlabs PDA55 Amplified Si Photodetector Module","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"730\"\u003eThe Thorlabs PDA55 Amplified Si Photodetector with PS-12DC-US \u003ca href=\"https:\/\/plgautomation.com\/collections\/power-supplies-protection\"\u003ePower Supply\u003c\/a\u003e is used in optical measurement and photonics systems to detect visible and near-infrared light with an integrated switchable-gain amplifier for high-speed signal acquisition. Commonly installed in laser laboratories, spectroscopy systems, fiber optic test setups, microscopy equipment, optical alignment stations, and scientific research instruments requiring amplified silicon photodetection. Optical engineers, laboratory technicians, and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this photodetector for optical power monitoring, laser diagnostics, laboratory measurements, and replacement of photodetection modules. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"732\" data-end=\"749\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"751\" data-end=\"1183\"\u003eThe Thorlabs PDA55 converts incident light into a voltage output using a silicon photodiode and an integrated low-noise amplifier with selectable gain settings. It is widely used for laser beam monitoring, optical alignment, spectroscopy, fluorescence detection, photonics research, fiber optic testing, and OEM instrumentation where fast response, low noise, and high sensitivity are required. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1185\" data-end=\"1214\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1216\" data-end=\"2216\"\u003e• Brand: Thorlabs\u003cbr data-start=\"1233\" data-end=\"1236\"\u003e• Part Number: PDA55\u003cbr data-start=\"1256\" data-end=\"1259\"\u003e• Included Accessory: PS-12DC-US Power Supply\u003cbr data-start=\"1304\" data-end=\"1307\"\u003e• Product Type: Amplified Silicon Photodetector\u003cbr data-start=\"1354\" data-end=\"1357\"\u003e• Detector Material: Silicon (Si) Photodiode\u003cbr data-start=\"1401\" data-end=\"1404\"\u003e• Spectral Response Range: 320–1100 nm\u003cbr data-start=\"1442\" data-end=\"1445\"\u003e• Peak Responsivity: 0.6 A\/W @ 960 nm\u003cbr data-start=\"1482\" data-end=\"1485\"\u003e• Active Area: 3.6 × 3.6 mm\u003cbr data-start=\"1512\" data-end=\"1515\"\u003e• Bandwidth: DC to 10 MHz\u003cbr data-start=\"1540\" data-end=\"1543\"\u003e• Gain Control: Five-position switchable gain in 10 dB increments\u003cbr data-start=\"1608\" data-end=\"1611\"\u003e• Output Voltage: 0–10 V (High Impedance), 0–5 V (50 Ω Load)\u003cbr data-start=\"1671\" data-end=\"1674\"\u003e• Output Impedance: 50 Ω\u003cbr data-start=\"1698\" data-end=\"1701\"\u003e• Noise Equivalent Power (NEP): 1 × 10⁻¹¹ W\/√Hz (typical at 0 dB gain, 960 nm)\u003cbr data-start=\"1779\" data-end=\"1782\"\u003e• Mounting Thread: 8-32 Tapped Hole (0.25 in. Depth)\u003cbr data-start=\"1834\" data-end=\"1837\"\u003e• Optical Interface: Removable SM1 (1.035\"-40) Threaded Coupler Compatible with Thorlabs SM1 Accessories\u003cbr data-start=\"1941\" data-end=\"1944\"\u003e• Power Supply: PS-12DC-US, 100–120 VAC Input, ±12 VDC Output\u003cbr data-start=\"2005\" data-end=\"2008\"\u003e• Typical Applications: Laser Diagnostics, Optical Power Monitoring, Spectroscopy, Microscopy, Fiber Optics Testing, Scientific Research, and OEM Optical Instrumentation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2218\" data-end=\"2242\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2244\" data-end=\"2412\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Thorlabs PDA36A2\u003cbr data-start=\"2294\" data-end=\"2297\"\u003e• Thorlabs PDA100A2\u003cbr data-start=\"2348\" data-end=\"2351\"\u003e• Thorlabs PDA10A2\u003c\/p\u003e","brand":"Thorlabs","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51714021490990,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_9e8c9b39-b079-4adc-ac17-072effa7988d.jpg?v=1770414022","url":"https:\/\/plgautomation.com\/products\/thorlabs-pda55-amplified-si-photodetector-module","provider":"PLG Automation ","version":"1.0","type":"link"}