DATA SHEET
PHOTO DIODE
NDL5421P Series
1 000 to 1 600 nm OPTICAL FIBER COMMUNICATIONS
φ
φ
φ φ
DESCRIPTION
NDL5421P Series is an InGaAs PIN photo diode module with multimode fiber. It is designed for 2.5Gb/s optical
fiber communication systems and covers the wavelength range between 1 000 and 1 600 nm with high efficiency.
FEATURES
•Small dark current ID = 0.1 nA
•High quantum efficiency
•Detecting area size
•Low operating voltage VR = 5 V
•Low terminal capacitance Ct = 0.7 pF @ f = 1.0 MHz, VR = 5 V
•High speed response fC = 2.5 GHz min.
•Coaxial module with multimode fiber (GI-50/125) or optional siglemode fiber (SM-9/125)
µµµµ
50
m InGaAs PIN PHOTO DIODE MODULE
η
= 86 % @ λ = 1 300 nm
η
= 75 % @ λ = 1 550 nm
φ
50 µm
NDL5421P
Optical Fiber:
GI-50/125
Length: 1 m MIN.
+0.0
φ
6.0
–0.1
6.9±0.3
–0.1
+0.0
6.0
231
Shrunk tube
φ
2.5
φ
0.45
φ
2.0
30.0 MAX.
12.5 MIN.
3.0±0.3
PACKAGE DIMENSIONS
in millimeters
NDL5421P1
Optical Fiber:
GI-50/125
Length: 1 m MIN.
φ
14.0±0.1
φ
3.9±0.5
6.9±0.3
φ
2– 2.2
231
1.5
7.0±0.3
18.0±0.1
PIN CONNECTIONS
1 Anode (Negative)
2 Cathode (Positive)
3 Case
Optical Fiber:
NDL5421P2
GI-50/125
Length: 1 m MIN.
Shrunk tube Shrunk tube
2.5
6.0
+0.0
–0.1
φ
2.0
30.0 MAX.
4.0±0.1
12.5 MIN.
4.0±0.3
3
12
φ
6.0
0.5±0.1
2.5±0.1
+0.0
–0.1
231
12.0±0.1
16.0±0.2
φ
2.5
2– 2.5
φ
2.0
30.0 MAX.
12.5 MIN.
φ
7.0±0.15
•
Document No. P10262EJ2V0DS00 (2nd edition)
Date Published June 1996 P
Printed in Japan
The information in this document is subject to change without notice.
The mark
••••
shows major revised points.
©
1995
ORDERING INFORMATION
••••
Part Number Available Connector Description
NDL5421P Without Connector GI-50/125 No Flange
NDL5421PC With FC-PC Connector
NDL5421PD With SC-P C Connector
NDL5421PS Without Connector SM-9/125
NDL5421PSC With FC-PC Connector
NDL5421PSD With SC-P C Connector
NDL5421P1 Without Connector GI-50/125 Flat Mount Flange
NDL5421P1C With FC-PC Connector
NDL5421P1D With SC-P C Connector
NDL5421P1S Without Connector SM-9/125
NDL5421P1SC With FC-PC Connector
NDL5421P1SD With SC-P C Connector
NDL5421P2 Without Connector GI-50/125 Vertical Flange
NDL5421P2C With FC-PC Connector
NDL5421P2D With SC-P C Connector
NDL5421P2S Without Connector SM-9/125
NDL5421P2SC With FC-PC Connector
NDL5421P2SD With SC-P C Connector
NDL5421P Series
ABSOL UTE MAXIMUM RATINGS (TC = 25
Parameter Symbol Ratings Unit
Reverse Voltage V
Forward Current I
Optical Input Power P
Operating Case Temperature T
Storage Temperature T
R
F
in
C
stg
C, unless otherwise specified)
°°°°
20 V
10 mA
−
40 to +85
−
40 to +85
ELECTRO-OPTICAL CHARACTERISTICS (TC = 25
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Dark Current I
Terminal Capacitance C
Quantum Effici ency
Responsivity S
Cut-off Frequency f
D
η
C
VR = 5 V 0.1 1.0 nA
t
VR = 5 V, f = 1.0 MHz 0.7 0.9 pF
λ
= 1 300 nm 75 86 %
λ
= 1 550 nm 64 75
λ
= 1 300 nm 0.78 0.89 A/W
λ
= 1 550 nm 0.80 0.94
VR = 5 V, RL = 50 Ω, λ = 1 300 nm 2.5 GHz
8mW
°
C
°
C
C, unless otherwise specified)
°°°°
2
NDL5421P Series
TYPICAL CHARACTERISTICS (TC = 25
WAVELENGTH DEPENDENCE
OF QUANTUM EFFICIENCY
100
80
η
60
40
20
Quantum Efficiency (%)
0
0.9 1.0 1.1 1.31.2 1.4 1.5 1.6 1.7
Wavelength λ ( m)
µ
REVERSE VOLTAGE DEPENDENCE
OF DARK CURRENT
10
T
C
= 75 ˚C
50 ˚C
25 ˚C
(nA)
D
1.0
C, unless otherwise specified)
°°°°
TEMPERATURE DEPENDENCE
OF RESPONSIVITY
10
∆
0
–10
–60
Responsivity (Relative Value) S/S (%)
–40 –20 0 20
TEMPERATURE DEPENDENCE
OF DARK CURRENT
1
10
0
10
(nA)
D
–1
10
–2
10
Dark Current I
–3
10
–60 –40 –20 0
λ = 1 300 nm
40 60 80
C
Case Temperature T
20 40
Case Temperature TC (˚C)
(˚C)
60 80
••••
100
VR = 5 V
100
0.1
Dark Current I
0.01
0.001
0
–25 ˚C
10
Reverse Voltage V
0 ˚C
R
(V)
20
REVERSE VOLTAGE DEPENDENCE
OF TERMINAL CAPACITANCE
2
(pF)
t
1
0.5
Terminal Capacitance C
0.3
Reverse Voltage VR (V)
13 100.1 0.3
f = 1.0 MHz
3