1A388 Datasheet, PDF (1/9 Pages) Mitel Networks Corporation – High-Performance LED(Datacom, Intra-Office Telecom)

PRODUCT INFORMATION
820nm
1A388
High-Performance LED
Datacom, Intra-Office Telecom
This device is designed for Ethernet
100 Mbps and Intra-Office Telecom
applications and offers an excellent
price/performance ratio for cost-
effective solutions. Its double-lens
optical system results in optimum
coupling of power into the fiber. And
it matches the 1A354 PIN
Photodiode.
Optical and Electrical Characteristics (25°C Case Temperature)
PARAMETER
SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION
Fiber-Coupled Power
(Fig.1, 2,& 3) (Table 1)
P_fiber 40 50
µW I_F =50mA
(Note 1)
Fiber:
62.5/ 125µm
Rise and Fall Time
(10-90%)
Bandwidth
(3dBel )
t_r, t_f
2 ns I_F =50mA
(no bias)
f_c 200 250
MHz I_F =50 mA
Graded
Index
NA= 0.275
Peak Wavelength
␭_p 800 820 840 nm I_F =50 mA
Spectral Width (FWHM)
⌬␭
60 nm I_F =50 mA
Forward Voltage (Fig.5)
V_F
Reverse Current
I_R
Capacitance
C
1.85 V
20 µA
20
pF
Note 1: Measured at the exit of 100 meters of fiber.
I_F =50 mA
V_R=1V
V_R= 0V, f=1 MHz
Ø4.7
Ø1.5
0.5
3.7
14
0.4
CASE
ANODE
CATHODE
2.5
5.4
BOTTOM VIEW
The diode chip is isolated from the case.
TO-46 Package With Lens
Absolute Maximum Ratings
PARAMETER
Storage Temperature
Operating Temperature (derating: Fig.4)
Electrical Power Dissipation (derating: Fig.4)
Continuous Forward Current (fр10 kHz)
Peak Forward Current (duty cycleр50%, fу1 MHz)
Reverse Voltage
Soldering Temperature (2mm from the case for 10sec)
SYMBOL
T_stg
T_op
P_tot
I_F
I_FRM
V_R
T_sld
LIMIT
-55 to +125°C
-55 to +125°C
250 mW
110 mA
180 mA
1.5 V
260° C
Thermal Characteristics
PARAMETER
SYMBOL MIN. TYP. MAX.
Thermal Resistance - Infinite Heat Sink R_thjc
100
Thermal Resistance - No Heat Sink
R_thja
400
Temperature Coefficient - Optical Power dP/dT_j
-0.6
Temperature Coefficient -Wavelength d␭ /dT_j
0.3
UNIT
°C/W
°C/W
%/°C
nm/°C
12940.11 1996-10-02
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