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66171 Datasheet, PDF (1/2 Pages) Micropac Industries – Base lead provided for conventional transistor biasing
66171
08/10/2012
PROTON RADIATION TOLERANT,
QUAD CHANNEL, HERMETIC 20 PIN LCC,
OPTICALLY COUPLED ISOLATOR
OPTOELECTRONIC
PRODUCTS
DIVISION
Features:
Applications:
 High Reliability
 Base lead provided for conventional transistor
biasing
 Very high gain, high voltage transistor
 Stability over wide temperature range.
 +1kVdc electrical isolation
 Screening available
 Eliminate ground loops
 Level shifting
 Line receiver
 Switching power supplies
 Motor control
DESCRIPTION
The Mii 66171 is an optically coupled isolator, consisting of four GaAlAs LEDs and four silicon phototransistors mounted and
coupled in a miniature surface mount hermetic leadless chip carrier. The 66171 uses an LED proven to be more tolerant to
proton radiation. All electrical characteristics of each channel are similar to the JEDEC registered 4N49. Each unit contains
four channels. These solid state couplers are ideal for designs where board space, device weight and radiation tolerance are
important design considerations.
ABSOLUTE MAXIMUM RATINGS
Input-to-output Voltage (see Note 1) ................................................................................................................................... +1 kV
Collector-Base Voltage .......................................................................................................................................................... 45 V
Collector-Emitter Voltage (Value applies to emitter-base open-circuited & the input-diode equal to zero) ......................... 40 V
Emitter-Base Voltage ............................................................................................................................................................... 7 V
Input Diode Reverse Voltage .................................................................................................................................................. 3 V
Input Diode Continuous Forward Current at (or below) 65°C Free-Air Temperature (see note 2) ................................... 40 mA
Input Diode Power Dissipation .......................................................................................................................................... 60 mW
Continuous Collector Current ............................................................................................................................................. 50 mA
Continuous Transistor Power Dissipation at (or below) 25°C Free-Air Temperature (see Note 3) ...............................300 mW
Storage Temperature......................................................................................................................................... -65°C to +125°C
Operating Free-Air Temperature Range ............................................................................................................-55°C to +100°C
Lead Solder Temperature (10 seconds) ............................................................................................................................ 240°C
Notes:
1. Measured with Inputs shorted together and outputs shorted together.
2. Derate linearly to 100°C free-air temperature at the rate of 0.53 mA/°C above 65°C.
3. Derate linearly to 100°C free-air temperature at the rate of 4 mW/°C.
Package Dimensions
Schematic Diagram
PIN 16
0.090 [2.29]±0.009 [0.23]
0.050 [1.27] TYP.
PIN 1
66171
C
XXXX
0.050
TYP
0.350 [8.89] SQ.
±0.008 [0.20]
0.085 [2.16]
TYP.
ALL DIMENSIONS ARE IN INCHES [MILLIMETERS]
A1 3
R0.008 [R0.20] TYP.
PIN 1
K1 2
A2 8
K2 7
6 C1 A3 13
5 E1
4 B1
11 C2
K3 12
A4 17
10 E2
9 B2 K4 18
16 C3
15 E3
14 B3
1 C4
20 E4
19 B4
MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION  725 E.Walnut St., Garland, TX 75040  (972)272-3571  Fax (972)487-6918
www.micropac.com E-MAIL: OPTOSALES @ MICROPAC.COM