ASSR-401C and ASSR-402C
Low C x R, Form A, Solid State Relay (Photo MOSFET)
(400V/100/15pF)
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
Description
Features
The ASSR-40xC Series is specifically designed for fast
switching applications, commonly found in the test and
measurement systems. The low C x R and low output offstate leakage current provide higher system throughput
and reduce system errors.
Compact Solid-State Bi-directional Signal Switch
Single and Dual Channel Normally-off Single-PoleSingle-Throw (SPST) Relay
400V Output Withstand Voltage
0.04A Current Rating
Low Input Current: IF = 1mA
Low C x R: 650pF typical
Low Output Off-state Leakage Current: 0.3nA typical
Fast Speed Switching: 0.08ms (Ton), 0.05ms (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
The dual channel configuration of ASSR-402C is equivalent to 2 Form A Electromechanical Relays (EMR). One
channel of the relay consists of an AlGaAs infrared lightemitting 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 voltage 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-401C is available in 4-pin SO package and ASSR402C is available in 8-pin DIP and Gull Wing Surface
Mount packages. Their electrical and switching characteristics are specified over the temperature range of
-40°C to +85°C.
Functional Diagram
Opto-isolation
1
4
Automatic Test Equipment
Data Acquisition System
Datalogger and Recorder
Multiplexer
Measuring Instrument
EMR / Reed Relay Replacement
Output
Off
3
Truth Table
LED
Turn-off
Circuit
2
Applications
Open
On
Close
Single Channel, SPST Relay,
1 Form A in 4-Pin SO Package
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.
Package Outline Drawings
ASSR-401C 4-Pin Small Outline Package
LAND PATTERN RECOMMENDATION
0.100
2.54
0.031
0.80
TYPE NUMBER
LEAD FREE
0.047
1.20
DATE CODE
xxxx
0.173±0.008
4.40±0.20
YWW
0.015
0.375
0.189
4.80
0.268±0.016
6.8±0.4
0.10
2.540
0.016
0.41
0.079±0.009
2.0±0.2
0.169±0.008
4.3 ±0.2
0.018
0.46
0.008
0.20
0.02
0.5
0.004±0.004
0.102±0.102
0.02
0.5
DIMENSIONS IN MILLIMETERS AND [INCHES]
OPTION NUMBER 500 AND UL RECOGNITION NOT MARKED
ASSR-402C 8-Pin DIP Package
7.62 ± 0.25
(0.300 ± 0.010)
9.65 ± 0.25
(0.380 ± 0.010)
TYPE NUMBER
8
7
6
5
YYWW RU
1
1.19 (0.047) MAX.
6.35 ± 0.25
(0.250 ± 0.010)
DATE CODE
A XXXX
LEAD FREE
OPTION CODE*
2
3
4
UL
RECOGNITION
1.78 (0.070) MAX.
5° TYP.
3.56 ± 0.13
(0.140 ± 0.005)
4.70 (0.185) MAX.
+ 0.076
0.254 - 0.051
+ 0.003)
(0.010 - 0.002)
0.51 (0.020) MIN.
2.92 (0.115) MIN.
1.080 ± 0.320
(0.043 ± 0.013)
3
0.65 (0.025) MAX.
2.54 ± 0.25
(0.100 ± 0.010)
DIMENSIONS IN MILLIMETERS AND (INCHES).
OPTION NUMBERS 300 AND 500 NOT MARKED.
