1109

P&B

Dimensions are shown for

reference purposes only.

Dimensions are in inches over

(millimeters) unless otherwise

specified.

Catalog 1308242

Issued 3-03

Specifications and availability

subject to change.

www.tycoelectronics.com

Technical support:

Refer to inside back cover.

-(B)

OUTPUT C

B1

B2

OUTPUT A

†

EQUIVALENT CIRCUIT ONLY

ZERO

VOLTAGE

CIRCUIT †

ZERO

VOLTAGE

CIRCUIT †

ZERO

VOLTAGE

CIRCUIT†

ZERO

VOLTAGE

CIRCUIT †

OUTPUT D

OUTPUT B

A1

A2

D1

D2

C1

C2

Random Turn-On Units Have A Random Turn-On Circuit Instead Of A Zero Voltage Circuit

-(A)

-(D)

-(C)

+

COMMON

A1

MTNG HOLE / SLOT 2 PLCS.

.170 (4.3) DIA.

2.3

(58.4)

1.75

(44.45)

.250 (6.35)

Q.C. TERMS

8 PLACES

.025 (.635) SQ. PINS

ON .100 (2.54) CENTERS

A1

C1

C2

B1

B2

D1

D2

DC SEC. A –

DC SEC. B –

– DC SEC. C

+ DC COMM

– DC SEC. D

1.125

(28.57)

1.87

(47.5)

.85

(21.6)

A2

.375

(9.5)

Outline Dimensions

Input Terminals mate with the following

connectors or equivalent:

AMP P/N: 103976-4

Consult your local distributor for connectors.

Operating Diagram

Electrical Characteristics (Thermal Derating Curves)

*See Thermal Derating Curves. Note: While each output section is rated for a maximum of 20A, the maximum output per package is 60A.

Parameter

Conditions

Units

Load Voltage Range V

Repetitive Blocking Voltage (Min.)

Thermal Resistance, Junction to Case (R

) (Max.)

I t Rating

A Sec.

V rms

V/

µs

ms

ms

Turn-Off Time (Max.)

I = Max.

2

Turn-On Time (Max.)

L

L

24-280

Single Cycle Surge Current (Min.)

Load Current Range I *

Leakage Current (Off-State) (Max.)

Static dv/dt (Off-State) (Min.)

Load Power Factor Rating

L

t = 8.3 ms

2

f = 60 Hz.

f = 60 Hz.

I = Max.

L

f = 60 Hz. V = 280Vrms

V peak

A rms

A peak

mA rms

On-State Voltage Drop (Max.)

V peak

8.3 for Zero Voltage Turn-On Models

0.1 for Random Voltage Turn-On Models

250

.15-20

- 600

260

J-C

10

1.6

200

1.2

8.3

°C/W

L

All Sections On

0.5 - 1.0

θ

Resistive

V = 280Vrms

L

Output Specifications (@ 25° C, unless otherwise specified)

Heatsink Recommendations

• We recommend that solid state relay modules be

mounted to a heatsink sufficient to maintain the

module’s base temperature at less than 85°C under

worst case ambient temperature and load conditions.

• The heatsink mounting surface should be a smooth

(30-40 micro-inch finish), flat (30-40 micro-inch

flatness across mating area), un-painted surface which

is clean and free of oxidation.

• An even coating of thermal compound (Dow Corning

DC340 or equivalent) should be applied to both the

heatsink and module mounting surfaces and spread to

a uniform depth of .002” to eliminate all air pockets.

• The module should be mounted to the heatsink using

two #10 screws.

Loads Current (A rms)

0

15

30

45

60 0

20

40

60

80

90

80

40

60

20

105

75

Ambient Temp. (

°C)

0.5

°C

/W

1°C

/W

2

°C

/W

3

°C/W

Example #2:

Given: SSRQ24020

Find: Maximum rating mounting to 1.0°C/W HS @ 60°C All

sections ON

Solution: From Thermal Dissipation Graph

Rating mounted to 1.0°C/W HS @ 60°C = 36A total

9A for 4 Sections ON = 36A total

12A for 3 Sections ON = 36A total

Example #1:

Find: Minimum heatsink required

Solution: From Thermal Dissipation Graph

4 x 7.5A = 30A 4 sections ON

Heatsink = 2°C/W minimum

How To Use These Curves

Knowing maximum load current and maximum ambient temperature, use derating curves to determine required heat sink and maximum allowable base plate

temperature. On left hand power dissipation curve, locate the point corresponding to maximum load current. Extend a line to the right from that point to the

intersection of vertical line on right hand chart corresponding to maximum ambient temperature. From heat sink curve, read directly or extrapolate required heat

sink size. Extend the line farther to the right and read on the right hand scale the maximum allowable base plate temperature.