Document
DATA SHEET
PHOTO DIODE
NR7500 Series
φ50 µm InGaAs PIN-PD COAXIAL MODULE FOR 2.5 Gb/s FIBEROPTIC COMMUNICATIONS
DESCRIPTION The NR7500 Series is an InGaAs PIN photo diode (PIN-PD) coaxial module with optical fiber pigtail. This module
is designed for long wavelength 2.5 Gb/s optical communication systems and ideal as a receiver for Synchronous Digital Hierarchy (SDH) system, STM-16, ITU-T recommendations.
FEATURES
• Small dark current
ID = 0.1 nA
• High speed response
fC = 2.5 GHz MIN.
• High sensitivity
S = 0.89 A/W @ λ = 1 310 nm
S = 0.94 A/W @ λ = 1 550 nm
• Low operating voltage
VR = 5 V
• Coaxial module with SMF or GI-50 fiber
• With SC connector : standard, FC connector : option
(Refer to ORDERING INFORMATION)
The information in this document is subject to change without notice. Before using this document, please confirm that
this is the latest version. Not all devices/types available in every country. Please check with local NEC Compound Semiconductor Devices representative for availability and additional information.
Document No. PL10156EJ01V0DS (1st edition) (Previous No. P15333EJ2V0DS00) Date Published May 2002 CP(K) Printed in Japan
The mark ! shows major revised points.
NEC Corporation 2001 NEC Compound Semiconductor Devices 2002
NR7500 Series
PACKAGE DIMENSIONS (UNIT: mm)
Optical Fiber Length: 1 m MIN.
FP/FR
φ 0.9
φ 3.2±0.2
φ 5.0±0.2 φ 7.0±0.2
4.0±0.5
Optical Fiber Length: 1 m MIN.
CP/CR
φ 0.9
φ 3.2±0.2
φ 5.0±0.2 φ 7.0±0.2
25.4±1.0
4.0±0.5
11.2±1.0 3.5±0.5
24.7±1.0
10.5±1.0 3.5±0.5
3.2
1.2±0.2
4.0±0.2 2.2
14.0±1.0
14.0±1.0
0.5±0.1 0.5
φ 2.2
φ 0.45±0.05
φ 0.45±0.05
1.0±0.1
12.7±0.2 17.0±0.2
PIN CONNECTIONS
P.C.D. = φ2.0
3 21
3.7±0.3 7.2±0.3
16.0±0.2
3 21
1. Anode (Negative) 2. Cathode (Positive) 3. Case
PIN CONNECTIONS
P.C.D. = φ2.0 4–R1.25±0.2
3 21
2– φ 2.5 8.5±0.2 12.0±0.1
7.0±0.2
3 21
1. Anode (Negative) 2. Cathode (Positive) 3. Case
OPTICAL FIBER CHARACTERISTICS
Parameter
Mode Field Diameter Core Diameter Cladding Diameter Maximum Cladding Noncircularity Maximum Core/Cladding Concentricity Outer Diameter Cut-off Wavelength Minimum Fiber Bending Radius Fiber Length Flammability
Specification
SMF
GI-50 Fiber
9.5±1
−
− 50±3
125±2
125±2
22
1.6 4.0
0.9±0.1
0.9±0.1
1 100 to 1 270
−
30 30
1 000 MIN.
1 000 MIN.
UL1581 VW-1
Unit
µm µm µm % % mm nm mm mm
35±2 mm
8.99±0.5 mm
Fiber Length: 1 000 mm MIN.
Connector
2 Data Sheet PL10156EJ01V0DS
NR7500 Series
ORDERING INFORMATION
Part Number NR7500FP-BC NR7500FP-CC NR7500FR-BB NR7500FR-CB NR7500CP-BC NR7500CP-CC NR7500CR-BB NR7500CR-CB
Flange Type Flat Mount Flange
Vertical Mount Flange
Fiber Type SMF GI-50 Fiber SMF GI-50 Fiber
Available Connector*1 With FC-UPC Connector With SC-UPC Connector With FC-SPC Connector With SC-SPC Connector With FC-UPC Connector With SC-UPC Connector With FC-SPC Connector With SC-SPC Connector
*1 SC Connector : standard FC Connector : option
ABSOLUTE MAXIMUM RATINGS
Parameter Reverse Voltage Forward Current Optical Input Power Operating Case Temperature Storage Temperature Lead Soldering Temperature Relative Humidity (noncondensing)
Symbol VR IF Pin TC Tstg Tsld RH
Ratings 20 10 8
−40 to +85 −40 to +85 260 (10 sec.)
85
Unit V mA
mW °C °C °C %
ELECTRO-OPTICAL CHARACTERISTICS (TC = −40 to +85°C, unless otherwise specified)
Parameter Dark Current
Terminal Capacitance Sensitivity
Cut-off Frequency Optical Return Loss
Symbol
Conditions
ID VR = 5 V, TC = 25°C
VR = 5 V
Ct VR = 5 V, f = 1 MHz, TC = 25°C
S VR = 5 V, λ = 1 310 nm
VR = 5 V, λ = 1 550 nm
fC VR = 5 V, TC = 25°C
ORL SMF
GI-50 Fiber
MIN.
0.78 0.80 2.5 30 28
TYP. 0.1
0.7 0.89 0.94
MAX. 1.0 20 0.9
Unit nA
pF A/W
GHz dB
Data Sheet PL10156EJ01V0DS
3
NR7500 Series
TYPICAL CHARACTERISTICS (TC = 25°C, unless otherwise specified)
WAVELENGTH DEPENDENCE OF QUANTUM EFFICIENCY
100
TEMPERATURE DEPENDENCE OF SENSITIVITY
10 λ = 1 310 nm
80
Sensitivity (Relative Value) ∆S/S (%)
Quantum Efficiency η (%)
60 0
40
20
0 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7
Wavelength λ ( µm)
REVERSE VOLTAGE DEPENDENCE OF DARK CURRENT
10 TC = +75°C
1.0 +50°C +25°C
0.1 0°C –25°C
0.01
Dark Current ID (nA)
–10 –60 –40 –20 0 20 40 60 80 100 Case Temperature TC (°C)
TEMPERATURE DEPENDENCE OF DARK CURRENT
10 VR = 5 V
1.0
0.1
0.01
Dark Current ID (nA)
Response (3dB/div.)
0.001 0
10 Reverse Voltage VR (V)
20
12 9 6 3 0
–3 –6 –9 –12 –15
0
FREQUENCY RESPONSE
VR = 5 V, λ = 1 310 nm, Pin = –10 dBm, RL = 50 Ω
2.5 Frequency f (GHz)
5.0
Terminal Capacitance Ct (pF)
0.001 –60 –40 –20 0 20 40 60 80 100 Case Temperature TC (°C)
REVERSE VOLTAGE DEPENDENCE OF TERMINAL CAPACITANCE
2 f = 1.0 MHz
1
0.5
0.3 0.1
0.3 1 3 Reverse Voltage VR (V)
10
Remark The graphs indicate nominal characteristics.
4 Data Sheet PL10156EJ01V0DS
NR7500 Series
InGaAs APD/PD FAMILY.