ASSR-301C and ASSR-302C
Low C x R, Form A, Solid State Relay (Photo MOSFET)
(250V/50/15pF)
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
Description
The ASSR-30xC Series is specifically designed for fast
switching applications, commonly found in the test and
measurement systems. The low C x R and low output off-
state leakage current provide higher system throughput
and reduce system errors.
The dual channel configuration of ASSR-302C is equiva-
lent to 2 Form A Electromechanical Relays (EMR). One
channel of the relay consists of an AlGaAs infrared light-
emitting diode (LED) input stage optically coupled to
a high-voltage output detector circuit. The detector
consists of a high-speed photovoltaic diode array and
driver circuitry to switch on/off two discrete high volt-
age MOSFETs. The relay turns on (contact closes) with a
minimum input current of 1mA through the input LED.
The relay turns off (contact opens) with an input voltage
of 0.8V or less.
ASSR-301C is available in 4-pin SO package and ASSR-
302C is available in 8-pin DIP and Gull Wing Surface
Mount packages. Their electrical and switching char-
acteristics are specified over the temperature range of
-40°C to +85°C.
Features
Compact Solid-State Bi-directional Signal Switch
Single and Dual Channel Normally-off Single-Pole-
Single-Throw (SPST) Relay
250V Output Withstand Voltage
0.05A Current Rating
Low Input Current: I
F
= 1mA
Low C x R: 340pF
typical
Low Output Off-state Leakage Current: 0.3nA typical
Fast Speed Switching: 0.07ms (Ton), 0.07ms (Toff )
typical
High Transient Immunity: >1kV/s
High Input-to-Output Insulation Voltage
(Safety and Regulatory Approvals Pending)
- 3750 Vrms for 1 min per UL1577
- CSA Component Acceptance
Applications
Automatic Test Equipment
Data Acquisition System
Datalogger and Recorder
Multiplexer
Measuring Instrument
EMR / Reed Relay Replacement
Functional Diagram
Opto-isolation
1
Turn-off
Circuit
4
Truth Table
LED
Off
On
Output
Open
Close
2
Single Channel, SPST Relay,
1 Form A in 4-Pin SO Package
3
CAUTION:
It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation which may be induced by ESD.
Ordering Information
ASSR-xxxx is UL Recognized with 3750 Vrms for 1 minute per UL1577 and is approved under CSA Component Accept-
ance Notice #5.
Option
Part number
ASSR-301C
RoHS Compliant
-003E
-503E
-002E
-302E
-502E
Package
SO-4
Surface
Mount
X
X
X
X
Gull
Wing
Tape
& Reel
X
Quantity
100 units per tube
1500 units per reel
50 units per tube
50 units per tube
ASSR-302C
300 mil DIP-8
X
X
X
1000 units per reel
To order, choose a part number from the part number column and combine with the desired option from the option
column to form an order entry.
Example 1:
ASSR-301C-503E to order product of Surface Mount SO-4 package in Tape and Reel packaging and RoHS Compli-
ant.
Example 2:
ASSR-302C-002E to order product of 300mil DIP-8 package in tube packaging and RoHS Compliant.
Option datasheets are available. Contact your Avago sales representative or authorized distributor for information.
Schematic
ASSR-301C
Opto-isolation
Opto-isolation
1
Turn
-off
Circuit
Circuit
4
Equivalent
Relay
Diagram
3
1
4
2
2
3
ASSR-302C
Opto-isolation
1
Turn-off
Circuit
Opto-isolation
8
1
8
2
7
Equivalent
Relay
Diagram
2
7
3
Turn-off
Circuit
6
3
6
4
5
4
5
2
Package Outline Drawings
ASSR-301C 4-Pin Small Outline Package
0.100
2.54
LEAD FREE
TYPE NUMBER
DATE CODE
xxxx
0.173±0.008
4.40±0.20
YWW
0.268±0.016
6.8±0.4
0.189
4.80
0.047
1.20
LAND PATTERN RECOMMENDATION
0.031
0.80
0.015
0.375
0.016
0.41
0.10
2.540
0.169±0.008
4.3 ±0.2
0.079±0.009
2.0±0.2
0.018
0.46
0.008
0.20
0.02
0.5
DIMENSIONS IN MILLIMETERS AND [INCHES]
OPTION NUMBER 500 AND UL RECOGNITION NOT MARKED
0.004±0.004
0.102±0.102
0.02
0.5
ASSR-302C 8-Pin DIP Package
9.65 ± 0.25
(0.380 ± 0.010)
TYPE NUMBER
8
7
A XXXX
LEAD FREE
YYWW RU
1
1.19 (0.047) MAX.
2
3
4
UL
RECOGNITION
6
5
OPTION CODE*
DATE CODE
7.62 ± 0.25
(0.300 ± 0.010)
6.35 ± 0.25
(0.250 ± 0.010)
1.78 (0.070) MAX.
5° TYP.
+ 0.076
0.254 - 0.051
+ 0.003)
(0.010 - 0.002)
3.56 ± 0.13
(0.140 ± 0.005)
4.70 (0.185) MAX.
0.51 (0.020) MIN.
2.92 (0.115) MIN.
DIMENSIONS IN MILLIMETERS AND (INCHES).
OPTION NUMBERS 300 AND 500 NOT MARKED.
1.080 ± 0.320
(0.043 ± 0.013)
0.65 (0.025) MAX.
2.54 ± 0.25
(0.100 ± 0.010)
3
ASSR-302C 8-Pin DIP Package with Gull Wing Surface Mount Option 300
LAND PATTERN RECOMMENDATION
9.65 ± 0.25
(0.380 ± 0.010)
8
7
6
5
1.016 (0.040)
6.350 ± 0.25
(0.250 ± 0.010)
10.9 (0.430)
1
2
3
4
2.0 (0.080)
1.27 (0.050)
1.19
(0.047)
MAX.
1.780
(0.070)
MAX.
9.65 ± 0.25
(0.380 ± 0.010)
7.62 ± 0.25
(0.300 ± 0.010)
3.56 ± 0.13
(0.140 ± 0.005)
+ 0.076
0.254 - 0.051
+ 0.003)
(0.010 - 0.002)
1.080 ± 0.320
(0.043 ± 0.013)
0.635 ± 0.130
2.54
(0.025 ± 0.005)
(0.100)
BSC
DIMENSIONS IN MILLIMETERS (INCHES).
LEAD COPLANARITY = 0.10 mm (0.004 INCHES).
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
0.635 ± 0.25
(0.025 ± 0.010)
12
°
NOM.
Lead Free IR Profile
tp
T
p
TEMPERATURE (°C)
TIME WITHIN 5
°
C of ACTUAL
PEAK TEMPERATURE
20-40 SEC.
260 +0/-5
°
C
217
°
C
RAMP-UP
3
°
C/SEC. MAX.
150 - 200
°
C
T
L
T
smax
T
smin
RAMP-DOWN
6
°
C/SEC. MAX.
t
s
PREHEAT
60 to 180 SEC.
25
t 25
°
C to PEAK
t
L
60 to 150 SEC.
TIME (SECONDS)
NOTES:
THE TIME FROM 25
°
C to PEAK TEMPERATURE = 8 MINUTES MAX.
T
smax
= 200
°
C, T
smin
= 150
°
C
Use of non-chlorine-activated fluxes is highly recommended.
4
Regulatory Information
The ASSR-301C and ASSR-302C are approved by the following organizations:
UL
Approved under UL 1577, component recognition program up to V
ISO
= 3750 V
RMS
CSA
Approved under CSA Component Acceptance Notice #5.
Insulation and Safety Related Specifications
Parameter
Minimum External Air Gap
(Clearance)
Minimum External Tracking
(Creepage)
Minimum Internal Plastic Gap
(Internal Clearance)
Symbol
L(101)
ASSR-301C
4.9
ASSR-302C
7.1
Units
mm
Conditions
Measured from input terminals to output
terminals, shortest distance through air.
Measured from input terminals to output
terminals, shortest distance path along
body.
Through insulation distance conductor to
conductor, usually the straight line distance
thickness between the emitter and detec-
tor.
DIN IEC 112/VDE 0303 Part 1
L(102)
4.9
7.4
mm
0.08
0.08
mm
Tracking Resistance (Compara-
tive Tracking Index)
Isolation Group
(DIN VDE0109)
CTI
175
175
V
IIIa
IIIa
Material Group (DIN VDE0109)
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Temperature
Junction Temperature
Lead Soldering Cycle
Input Current
Temperature
Time
Average
Surge
Transient
I
F
Symbol
T
S
T
A
T
J
Min.
-55
-40
Max.
125
85
125
260
10
25
50
1000
5
20
40
125
250
0.05
Units
C
C
C
C
s
mA
Note
Reversed Input Voltage
Input Power Dissipation
Output Power Dissipation
Average Output Current
(T
A
= 25°C, T
C
100°C)
Output Voltage (T
A
= 25°C)
Solder Reflow Temperature Profile
ASSR-301C
ASSR-302C
ASSR-301C
ASSR-302C
V
R
P
IN
P
O
I
O
V
O
-250
V
mW
mW
A
250
V
See Lead Free IR Profile
5
PCB Design
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