General Description
The DPA 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 DPA
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. Voltage controlled models with an
internal resistor to limit the control current are also
available.
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 DPA Series ChipSwitch is a single-pole,
normally-open SSR capable of switching up to 1.0
ARMS 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 DPA 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 1.033A
DPA Series
Microelectronic
Power IC Relay
1.0 Amp Load Current, 20 - 280 VACRMS
ChipSwitch® DIP Relay
DPA Series Features
S3X power IC chips n
25 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 DC Input
Number Overvoltage Voltage Sensitivity
(VPEAK)(V
RMS) (Turn-On)
DPA4111 400 20-140 10mA
DPA4119 400 20-140 3.5V
DPA6111 600 20-280 10mA
DPA6119 600 20-280 3.5V
(ChipSwitch and HEXFET are trademarks of International Rectifier)
Series DPA  ChipSwitch® DIP Relay
OUTPUT CHARACTERISTICS Limits Units
DPA4111 DPA6111
DPA4119 DPA6119
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) (see Note 3) 1.0 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 @ 1.0 ARMS 1.5 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) 25 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, 500V DC 1012
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
INPUT CHARACTERISTICS Limits Units
Maximum Turn-On Current: DPA4111, DPA611 1 10.0 mA
Minimum Turn-Off Current: DPA4111, DPA6111 0.5 mA
Control Current Range (Caution: current limit input LED, see figure 3) 10 to 25 mA
DPA4111, DPA6111 (see figure 4 for DPA4119, DPA6119)
Maximum Turn-On V oltage: DPA41 19, DPA61 19 3.5 V
Minimum Turn-Off Voltage: DP A4119, DP A6119 0.8 V
Control Voltage Range: DP A4119, DP A6119 3.5 to 7 V
Maximum Reverse V oltage (All Models) 7.0 V
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(DPA4111, DPA6111) or input voltage of zero Volts (DPA4119, DPA6119).
3. The UL508 motor control rating per Sec. 52 overload test conditions is 0.4A max., and general purpose
and incandescent load control rating is 1.0A.
Electrical Specifications (-30°C TA+85°C unless otherwise specified)
Series DPA  ChipSwitch® DIP Relay
16
20
12
8
4
0
0.5 1.0 1.5 2.0
0
CAUTION: provide current limiting
so that 25 mA maximum steady-
state control current rating is
not exceeded
TYPICAL
Min. device and +85 deg. C limit
Max. device and -40 deg. C limit
Figure 1. Derating Curve, Free Standing Figure 2. Maximum Allowable Surge
Maximum Surge Current (A peak)
Ambient Temperature (deg. C) Surge Duration (seconds)
Load Current (Arms)
Input Current (mA)
LED Forward Voltage Drop (Volts DC) Input Voltage (Volts DC)
Maximum Input Current (mA)
DPA4119
DPA6119
Figure 3. Input Characteristics (Current Controlled) Figure 4. Input Characteristics (Voltage Controlled)
20 30 40 50 60 70 80 90
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
DPA4111
DPA6111
1234567
30
20
10
08
0.01 0.02 0.05 0.1 0.2 0.5 1.0 2.0
40
35
25
20
15
10
5
0
5.0 10
30
Note: C urv e re pr esents a non- rep etit iv e unif orm
amplitu de puls e of given t ime and peak
Control of conduction may be lost
during surge .
current. Tj 40 deg.C before sur ge .
Series DPA  ChipSwitch® DIP Relay
Wiring Diagram +DC 16
-DC 1
AC10
AC8
Output
(Load)
Input
(Control)
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.
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