General Description
The SPA Series ChipSwitch uses exclusive Interna-
tional Rectifier S3X power integrated circuit technol-
ogy to form a fully functioning solid-state relay. The
S3X technology combines MOS and bipolar pro-
cesses, derived from IR’s HEXFET® power MOS-
FET designs, to eliminate the need for both discrete
components and hybrid circuits. The basic SPA
Series ChipSwitch consists of two identical power
integrated circuits connected in inverse parallel
(analogous to back-to-back SCRs) for AC control
plus an isolated GaAIAs light emitting diode (LED)
for actuation.
Extreme reliability is achieved by the reduction of
component count from approximately 20 discrete
components in a conventional SSR to 3 basic
components in the ChipSwitch.
The SPA Series ChipSwitch is a single-pole,
normally-open SSR capable of switching up to 0.9
ARMS low power factor load currents with precise
zero-voltage turn-on and zero-current turn-off, thus
reducing EMI emissions.
These devices are ideally suited for interfacing
microprocessors to AC loads, such as small motors,
lamps, solenoids, valves and high power motor
starters. The economy of the SPA Series
ChipSwitch allows the in-house manufacturer to
replace assemblies of triacs, triac drivers and
associated components with a highly reliable,
miniature, standard SSR.
PD 1.032A
SPA Series
Microelectronic
Power IC Relay
0.9 Amp Load Current, 20 - 280 VACRMS
ChipSwitch® SIP Relay
SPA Series Features
S3X power IC chips n
24 Amp surge n
4,000 VRMS I/O isolation n
10 µA of f-state leakage current n
Zero-voltage turn-on n
Operates without snubber n
600 V/µs of f-state dv/dt n
Solid-State reliability n
UL recognized and CSA certified n
Part Identification
Part Transient Operating
Number Overvoltage Voltage
(VPEAK)(V
RMS)
SPA4191 400 20-140
SPA6191 600 20-280
ChipSwitch® and HEXFET® are registered trademarks of International Rectifier.)
Series SPA ChipSwitch® SIP Relay
Notes:
1. Off-state dv/dt test method per EIA/NARM standard RS-443 with VP equal to the instantaneous peak of
the maximum operating voltage.
2. LED input currrent of zero mA and at maximum operating voltage.
3. Load current rating may be extended to 1.1 ARMS (@TAMB≤+40°C) by using an external snubber circuit:
0.033 µF +100Ω.
4. The UL508 motor control rating per Sec. 52 overload test conditions is 0.4A max., and general purpose
and incandescent load control is 0.9A.
Electrical Specifications (-30°C ≤ TA ≤ +85°C unless otherwise specified)
INPUT CHARACTERISTICS Limits Units
Maximum Turn-On Current 10.0 mA
Minimum Turn-On Current 0.5 mA
Control Current Range (Caution: current limit input LED, see figure 3) 10 to 25 mA
Maximum Reverse V oltage 7.0 V
OUTPUT CHARACTERISTICS Limits Units
SPA4191 SPA6191
Operating Voltage Range (47 - 63 Hz) 20-140 20-280 V RMS
Transient Overvoltage (non-repetitive) 400 600 VPEAK
Maximum Load Current @ TA=+40°C (see figure 1; Notes 3 and 4) 0.9 ARMS
Minimum Load Current 0.5 mARMS
Minimum Off-State dv/dt (see Note 1) 600 V/µS
Power Factor Range 0.2 to 1.0 —
Maximum On-State Voltage Drop @ 0.9 ARMS 1.4 VPEAK
Maximum Off-State Leakage Current (see Note 2) 10 µARMS
Maximum Turn-On T ime (60 Hz) 8.3 ms
Maximum Turn-Off T ime (60 Hz) 8.3 ms
Maximum Surge Current, Single-Cycle, Non-Repetitive 20 ms (see figure 2) 24 APEAK
Maximum Overcurrent, Non-Repetitive 1 second 7.5 APEAK
Maximum I2T for Fusing (0.01 sec) 4.5 A2s
Maximum Zero Voltage T urn-On 12 VPEAK
GENERAL CHARACTERISTICS Limits Units
Minimum Dielectric Strength, Input-Output 4000 VRMS
Minimum Insulation Resistance, Input-Output @TA=+25°C, 50%RH, 500VDC 1012 Ω
Tracking Resistance (VDE Test) KB 100/A —
Maximum Capacitance, Input-Output 2. 0 pF
Maximum Pin Soldering Temperature (10 seconds maximum) +260
Ambient Temperature Range: Operating -30 to +85 °C
Storage -40 to +100
Series SPA ChipSwitch® SIP Relay
Figure 1. Derating Curve, Free Standing Figure 2. Maximum Allowable Surge
Figure 3. Input Characteristics (Current Controlled)
Note: Curve represents a non-repetitive uniform
amplitude pulse of given time and peak
Control of conduction may be lost
during surge.
current. Tj ≤ ≤ 40 deg.C before surge.
≤
Series SPA ChipSwitch® SIP Relay
Case Outline
Dimensions in millimeters (inches)
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 322 3331
EUROPEAN HEADQUARTERS: Hurst Green, Oxted, Surrey RH8 9BB, UK Tel: ++ 44 1883 713215
IR CANADA: 7321 Victoria Park Ave., Suite 201, Markham, Ontario L3R 2Z8, Tel: (905) 475 1897
IR GERMANY: Saalburgstrasse 157, 61350 Bad Homburg Tel: ++ 49 6172 96590
IR ITALY: Via Liguria 49, 10071 Borgaro, Torino Tel: ++ 39 11 451 0111
IR FAR EAST: K&H Bldg., 2F, 3-30-4 Nishi-Ikeburo 3-Chome, Toshima-Ku, Tokyo, Japan 171 Tel: ++ 81 3 3983 0641
IR SOUTHEAST ASIA: 315 Outram Road, #10-02 Tan Boon Liat Building, Singapore 0316 Tel: ++ 65 221 8371
http://www/irf.com/
Data and specifications subject to change without notice.
9/96
1682
Input
(Control) Output
(Load)
+DC
AC
AC
-DC
1268
Wiring Diagram
CURRENT LIMIT
