470 Dimensions are shown for
reference purposes only. Dimensions are in inches over
(millimeters) unless otherwise
specified.
Specifications and availability
subject to change.
OEG
Catalog 1308242
Issued 3-03
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
Features
• Meet UL TV-3 and CSA TV-4 rating available for DM5 type.
• 2 Form A contact arrangements.
• Immersion cleanable, sealed version available.
• Meet 3,000V dielectric voltage between coil and contacts.
• Meet 5,000V surge voltage between coil and contacts (1.2 / 50µs).
OSA series
2 Pole Miniature
Power PC Board Relay
Appliances, Audio Equipment, Office Machines
UL File No. E82292
CSA File No. LR48471
SEMKO File No. 9452086 (available for DM5)
TUV File No. R9551879 (available for DM5)
Initial Insulation Resistance
Between Mutually Insulated Elements: 1,000M ohms min. @ 500VDC. Mechanical Data
Termination: Printed circuit terminals.
Enclosure (94V-0 Flammability Ratings):
OSA-SS: Vented (Flux-tight) plastic cover.
OSA-SH: Sealed plastic case.
Weight: 0.46 oz (13g) approximately.
Coil Data @ 20°C
Operate Data
Must Operate Voltage: 75% of nominal voltage or less.
Must Release Voltage: 10% of nominal voltage or more.
Operate Time:20 ms max.
Release Time: 10 ms max.
Environmental Data
Temperature Range:
Operating:-30°C to +60°C
Vibration, Mechanical: 10 to 55 Hz., 1.5mm double amplitude
Operational: 10 to 55 Hz., 1.5mm double amplitude.
Shock, Mechanical: 1,000m/s2 (100G approximately).
Operational: 100m/s2 (10G approximately).
Operating Humidity: 20 to 85% RH. (Non-condensing).
Initial Dielectric Strength
Between Open Contacts: 1,000VAC 50/60 Hz. (1 minute).
Between Coil and Contacts: 3,000VAC 50/60 Hz. (1 minute).
Surge Voltage Between Coil and Contacts: 5,000V (1.2 / 50µs).
Contact Data @ 20°C
Arrangements: 2 Form A (DPST-NO).
Material: Ag-GS Alloy (DM3) and AgSnO (DM5).
Max. Switching Rate: 300 ops./min. (no load).
30 ops./min. (rated load).
Expected Mechanical Life: 10 million operations (no load).
Expected Electrical Life: 100,000 operations (rated load).
Minimum Load:
OSA-DM3: 1mA @ 1VDC.
OSA-DM5: 100mA @ 5VDC.
Initial Contact Resistance: 50 milliohms @ 1A, 6VDC.
Coil Data
Voltage: 5 to 48VDC.
Nominal Power: 540 mW
Coil Temperature Rise: 50°C max., at rated coil voltage.
Max. Coil Power: 130% of nominal.
Duty Cycle: Continuous.
Contact Ratings
Ratings: OSA-DM3: 3A @ 120VAC resistive,
3A @ 24VDC resistive,
OSA-DM5: 5A @ 240VAC resistive,
5A @ 30VDC resistive,
TV-3 @ 120VAC Tungsten (UL),
TV-4 @ 120VAC Tungsten (CSA).
Max. Switched Voltage:
OSA-DM3: AC: 240V.DC: 50V.
OSA-DM5: AC: 250V.DC: 30V.
Max. Switched Current: 5A
Max. Switched Power:
OSA-DM3: 300VA.
OSA-DM5: 1,100VA.
OSA
Rated Coil Nominal Coil Must Operate Must Release
Voltage Current Resistance Voltage Voltage
(VDC) (mA) (ohms) ± 10% (VDC) (VDC)
5 106.4 47 3.75 0.50
6 88.0 68 4.50 0.60
9 58.0 155 6.75 0.90
12 44.4 270 9.00 1.20
24 21.8 1,100 18.00 2.40
48 11.0 4,400 36.00 4.80
Users should thoroughly review the technical data before selecting a product part
number. It is recommended that user also seek out the pertinent approvals files of
the agencies/laboratories and review them to ensure the product meets the
requirements for a given application.
471
Dimensions are shown for
reference purposes only. Dimensions are in inches over
(millimeters) unless otherwise
specified.
Specifications and availability
subject to change. www.tycoelectronics.com
Technical support:
Refer to inside back cover.
OEG
Catalog 1308242
Issued 3-03
Reference Data
Wiring Diagram (Bottom View)
Outline Dimensions
Coil Temperature Rise Operate Time Life Expectancy
PC Board Layout (Bottom View)
Ordering Information Typical Part Number BOSA -SS -2 24 D M 3 ,000
1. Basic Series:
OSA = Miniature Power PC board relay.
2. Enclosure:
SS = Vent (Flux-tight)* plastic cover.
SH = Sealed, plastic case.
3. Termination:
2 = 2 pole
4. Coil Voltage:
05 = 5VDC 09 = 9VDC 24 = 24VDC
06 = 6VDC 12 = 12VDC 48 = 48VDC
5. Coil Input:
D = Standard
6. Contact Arrangement:
M = 2 Form A, DPST-NO
7. Contact Rating:
3 = 3A @ 120VAC resistive (DM3). 5 = 5A @ 240VAC resistive (DM5).
8. Suffix:
,000 = Standard model Other Suffix = Custom model
* Not suitable for immersion cleaning processes.
12
10
8
6
4
2
0.2 0.4 0.6 0.8 1.0 1.2 1.4
0.1 0.2 0.3 0.4 0.5 0.6 0.7
Coil Power (W)
Coil Power (W)
Time (msec)
60
50
40
30
20
10
Temp. Rise (°C)
Release Time
Operate Time
100
Contact Current (A)
Operation (x 10
4
)
10
10123
45
DM3 T ype,
120VAC, 24VDC
Resistive
DM5 T ype,
240VAC, 30VDC
Resistive
.976 ± .02
(24.8 ± .5)
.96 ± .02
(24.4 ± .5)
.018
(.45)
.197 ± .008
(5.0 ± .2)
.012
(.3)
.59 ± .008
(15.0 ± .2)
.295 ± .008
(7.5 ± .2)
.157 ± .02
(4.0 ± .5)
.508 ± .02
(12.9 ± .5)
.02
(.5)
.077 ± .008
(1.95 ± .2) .096 ± .008
(2.45 ± .2)
.106 ± .008
(2.7 ± .2)
.106 ± .008
(2.7 ± .2)
.039 ± .004
(1.0 ± .1) .039 ± .004
(1.0 ± .1)
2 – .039 DIA
(1.0)
.197 ± .004
(5.0 ± .1)
.59 ± .004
(15.0 ± .1)
.295 ± .004
(7.5 ± .1)
4 – .047 DIA
(1.2)
None at present.
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