NEC's φ50 µ µm InGaAs APD IN COAXIAL PACKAGE NR8501 Series FOR 2.5Gb/s APPLICATIONS FEATURES DESCRIPTION • SMALL DARK CURRENT: ID = 7 nA NEC's NR8501 Series are InGaAs avalanche photo diode (APD) coaxial modules with optical fiber pigtail. They are designed for long wavelength 2.5 Gb/s optical communication systems and are ideal as a reciever for Synchronous Digital Hierarchy (SDH) system, STM-16 ITU-T recommendations. • HIGH SENSITIVITY: S = 0.94 A/W at λ = 1310 nm, M = 1 S = 0.96 A/W at λ = 1550 nm, M = 1 • HIGH SPEED RESPONSE: fC = 2.5 GHz at M = 5 • COAXIAL MODULE WITH SINGLE MODE FIBER (SMF) or GI-50 Fiber • WITH SC CONNECTOR: Standard, FC connector: Option (Refer to Ordering Information) ELECTRO-OPTICAL CHARACTERISTICS (TC = 25°C, Unless otherwise specified) PART NUMBER SYMBOLS VBR PARAMETERS AND CONDITIONS Reverse Breakdown Voltage, ID =100 µA δ1 Temperature Coefficient of Reverse Breakdown Voltage ID NR8501 Series UNITS MIN TYP MAX V 40 60 80 %/ºC 0.20 Dark Current, VR = VBR x 0.9 nA 7 IDM Multiplied Dark Current, M = 2 to 10 nA 1 5 Ct Terminal Capacitance, VR = V(BR)R x 0.9, f = 1 MHz pF 0.5 0.75 fC Cut-off Frequency, M = 5 M = 10 M = 30 GHz 2.5 2.5 1.0 3.0 3.0 1.2 S Sensitivity, A/W 0.80 0.81 0.94 0.96 M Multiplication Factor, λ = 1310 nm, IPO = 1.0 µA 30 40 λ = 1310 nm, M = 1 λ = 1550 nm, M = 1 30 VR = V (@ID = 1 µA) x Excess Noise Factor2, λ = 1310 nm, 1550 nm, IPO =1.0 µA, M = 10, f = 35 MHz, B = 1 MHz 0.7 F Excess Noise Factor2, λ = 1310 nm, 1550 nm, IPO =1.0 µA, M = 10, f = 35 MHz, B = 1 MHz 5 ORL Optical Return Loss SMF GI-50 Fiber dB 30 28 Notes: VBR(25°C+∆T°C)-VBR(25°C) 1. δ = ∆T°C • VBR(25°C) 2. F = MX California Eastern Laboratories NR8501 SERIES ABSOLUTE MAXIMUM RATINGS1 (TC = 25°C, unless otherwise specified) SYMBOLS PARAMETERS UNITS RATINGS IF Forward Current mA 10 IR Reverse Current mA 1.0 TC Operating Case Temp. °C -40 to +85 TSTG Storage Temperature °C -40 to +85 TSLD Lead Soldering Temperature °C 260 (10 sec.) Relative Humidity (noncondensing) % 85 RH Note: 1. Operation in excess of any one of these parameters may result in permanent damage. TYPICAL PERFORMANCE CURVES (TC = 25°C, unless otherwise specified) TERMINAL CAPACITANCE vs. REVERSE VOLTAGE WAVELENGTH DEPENDENCE OF QUANTUM EFFICIENCY 100 Terminal Capacitance Ct (pf) Quantum Efficiency, η (%) 100 80 60 40 20 0 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 EXCESS NOISE FACTOR vs. MULTIPLICATION FACTOR Excess Noise Factor F 10 1 10 Multiplication Factor M 20 10 5 2 1 2 5 10 20 Reverse Voltage, VR (V) Wavelength, λ (µm) 0.1 1 50 100 50 100 NR8501 SERIES TYPICAL PERFORMANCE CURVES (TC = 25°C, unless otherwise specified) DARK CURRENT AND PHOTO CURRENT vs. REVERSE VOLTAGE 10 -4 DARK CURRENT vs. REVERSE VOLTAGE 10 2 10-5 λ = 1310 nm, 10 -5 10 Iph 10-6 1 Dark Current, ID (nA) Ipo = 1.0 µA 10-6 10 -7 10 -8 Tc = 10-9 10 -10 10 -7 10 10 -12 0 20 40 60 80 Reverse Voltage, VR (V) -8 EXCESS NOISE FACTOR vs. MULTIPLICATION FACTOR 10-9 ID 100 10 Excess Noise Factor F Dark Current,ID, Iph (nA) 10-11 °C 100 °C +80 °C +60 °C +40 °C +20 0 °C °C -20 -10 10-11 10-12 0 20 40 60 80 • 1310 nm ( ), 1550 nm (O) f = 35 MHz, B=1 MHz 50 K 0.5 0.4 20 10 5 2 1 2 5 10 20 Reverse Voltage, VR (V) Multiplication Factor M 50 100 NR8501 SERIES OUTLINE DIMENSIONS (Units in mm) CP/CR ø0.9 6.0 4.3 0.5±0.2 15.0 24.7±1.0 0.5 ø2.2 8.0±0.3 14.0±1.0 4.0±0.2 2.2 ø7.0±0.2 4.0±0.5 1.2±0.2 3.2 ø5.0±0.2 10.5±1.0 3.5±0.5 ø3.2±0.2 ø7.0±0.2 ø0.9 Optical Fiber Length: 1 m MIN ø0.45±0.05 25.3±1.0 FP/FR Optical Fiber Length: 1 m MIN ø0.45±0.05 14.0±1.0 16.0±0.2 12.7±0.2 17.0±0.2 PIN CONNECTIONS 3.7±0.3 P.C.D. = ø2.0 3 2 2 1 3 2 3 7.2±0.3 1.0±0.1 PIN CONNECTIONS P.C.D. = ø2.0 4–R1.25±0.2 3 1 2 1. Anode (Negative) 2. Cathode (Positive) 3. Case 2–ø2.5 1 8.5±0.2 12.0±0.15 1 7.0±0.2 1. Anode (Negative) 2. Cathode (Positive) 3. Case OPTICAL FIBER CHARACTERISTICS PARAMETER SPECIFICATION UNITS SMF GI-50 Fiber Mode Field Diameter 9.5±1 − µm Core Diameter 50±3 µm Cladding Diameter 125±2 125±2 µm Maximum Cladding Noncircularity 2 2 % Maximum Core/Cladding Concentricity 1.6 4.0 % Outer Diameter 0.9±0.1 0.9±0.1 mm Cut-off Wavelength 1100 to 1270 nm Minimum Fiber Bending Radius 30 30 mm Fiber Length 1000 MIN 1000 MIN mm Flammability UL1581 VW-1 35±2 5±2 mm 8.99±0.5 mm Connector Fiber Length: 1000 mm MIN ORDERING INFORMATION PART NUMBER NR8501FP-BC NR8501FP-CC NR8501FR-BB NR8501FR-CB NR8501CP-BC NR8501CP-CC NR8501CR-BB NR8501CR-CB FLANGE TYPE Flat Mount Flange Vertical Mount Flange FIBER TYPE AVAILABLE CONNECTOR SMF With FC-UPC Connector With SC-UPC Connector GI-50 Fiber With FC-UPC Connector With SC-UPC Connector SMF With FC-UPC Connector With SC-UPC Connector GI-50 Fiber With FC-UPC Connector With SC-UPC Connector Life Support Applications These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably be expected to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and agree to fully indemnify CEL for all damages resulting from such improper use or sale. 02/24/2003 A Business Partner of NEC Compound Semiconductor Devices, Ltd.