W260
ENGINEERING DATA SHEET
RELAY - NONLATCH
2 PDT, 2 AMP
Non polarized, non latching hermetically sealed relay
2 PDT
Contact arrangement
Coil supply
Qualified to
Direct current
MIL-R-39016/6
PRINCIPLE TECHNICAL CHARACTERISTICS
Contacts rated at
Weight
Dimensions of case
without mounting
brackets
APPLICATION NOTES:
001
007
APPLICABLE SOCKETS:
HRCW
SO9005
SF250-R4
2 Amp / 28Vdc
10 grams max
20.6mm x 10.4mm x 10.4mm max
Hermetically sealed corrosion protected metal can.
CONTACT ELECTRICAL CHARACTERISTICS
Minimum
operating cycles
100,000 cycles
100,000 cycles
100,000 cycles
1,000,000
cycles
100 cycles
Contact rating per
pole and load type
resistive load
inductive load (0.2H)
---Type 1
---Type 2
lamp load
low level (10mA/50mV max)
resistive overload
Load Current in Amps
@28Vdc
2
0.75
0.5
0.16
-
4
@115Vac/60-400Hz
0.3
-
-
-
-
-
Featuring
LEACH
©
power and control solutions
www.esterline.com
AMERICAS
6900 Orangethorpe Ave.
P.O. Box 5032
Buena Park, CA 90622
.
.
Tel: (01) 714-736-7599
Fax: (01) 714-670-1145
EUROPE
2 Rue Goethe
57430 Sarralbe
France
.
.
Tel: (33) 3 87 97 31 01
Fax: (33) 3 87 97 96 86
ASIA
Units 602-603 6/F Lakeside 1
No.8 Science Park West Avenue
Phase Two, Hong Kong Science Park
Pak Shek Kok, Tai Po, N.T.
Hong Kong
Tel: (852) 2 191 3830
Fax: (852) 2 389 5803
Data sheets are for initial product selection and comparison. Contact Esterline Power Systems prior to choosing a component.
Date of issue:
9/10
- 37 -
Page 1 of 4
COIL CHARACTERISTICS (Vdc)
CODE
Nominal operating voltage
Maximum operating voltage
Maximum pickup voltage at +125° C
Guaranteed drop-out voltage at -65° C
Coil resistance in
Ω
±10% at +25° C
Back EMF suppression to (Vdc)
A
26.5
32
18
1
700
B
12
15
9
0.5
160
C
6
7.5
4.5
0.25
40
D
36
42
24
2
1250
E
48
56
36
2.5
2500
F
60
70
40
3.5
3500
N
W260
26.5
32
18
1
700
N/A
N/A
N/A
N/A
N/A
N/A
-42
GENERAL CHARACTERISTICS
Temperature range
Dielectric strength at sea level all points
Dielectric strength at altitude 25,000 m, all terminals to ground
Initial insulation resistance at 100 Vdc
-65°C to +125°C
500 Vrms / 50 Hz
350 Vrms / 50 Hz
>10000 M
Ω
30 G / 10 to 3000 Hz
20 G / 75 to 2000 Hz
100 G / 6 ms
10 µs
4 ms max
4 ms max
2 ms max
50 mΩ max
Sinusoidal vibration (except N coil)
Sinusoidal vibration (only N coil)
Shock
Maximum contact opening time under vibration and shock
Operate time at nominal voltage
Release time
Bounce time
Contact resistance at nominal current
Date of issue: 9/10
- 38 -
Page 2 of 4
MOUNTING STYLES
W260
Dimensions in mm
Tolerances unless otherwise specified ±0.25mm
TERMINAL TYPES
Date of issue: 9/10
- 39 -
Page 3 of 4
SCHEMATIC DIAGRAM
BOTTOM VIEW, DE-ENERGIZED COIL
W260
SHEMATIC DIAGRAM WITHOUT TERMINAL DESIGNATION WILL APPEAR ON THE CASE
N COIL
A2
B1
+
X1
A3
B1
A2
+
X1
A3
B3
-
X2
B2
A1
B3
-
X2
B2
A1
NUMBERING SYSTEM
W260 *
*
*
*** * *
Basic series designation__________________________|
|
|
|
|
| |
1-Mounting Style (A,B,G,O,R)__________________________|
|
|
|
| |
2-Terminal Types(1,2,4)___________________________________|
|
|
| |
3-Coil Voltage (A,B,C,D,E,F,N)________________________________|
|
| |
4-Standard Version (blank); 004 (qualified to MIL-R-39016/6)_______|
| |
5-Failure Rate L,M,P,R (only for 004)__________________________________| |
6-Contact Data 1,2, (See page 1 for Type)_________________________________|
NOTES
1.
Socket:
1.2 HRCW - 1M with mounting hardware and solder connections.
1.2 SF 250 R4 with mounting hardware and crimping contacts.
1.3 SO-9005 for printed circuit board.
2.
Isolation spacer pads for PCB mounting available on request
3.
Ultra sonic cleaning may adversely effect the normally closed contacts
TYPICAL CHARACTERISTICS
G
G
Coil L/R ratio for all coil = 1.5 ms
Coil resistance/temperature change: See application note no. 001
Date of issue:
9/10
- 40 -
Page 4 of 4
Application notes
N°001
CORRECTION DUE TO COIL COPPER WIRE RESISTANCE
CHANGE IN TEMPERATURE
1.8
1.6
Correction coefficient
1.4
1.2
1
0.8
0.6
-80
-30
Temperature ( °C)
20
70
120
170
Nominal Resistance at 25°C
Nominal Resistance at 20°C
Example: Coil resistance at 25°C: 935 ohms. What is it at 125°C?
Correction coefficient on diagram is: 1.39 at 125°C. R becomes: 935x1.39=1299 Ohms
Correction also applies to operating voltages
Date of issue: 3/06
-1-
Page 1 of 1
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