TO-5 CASE RELAY
DPDT, HIGH CURRENT
Series
MCA
Product Description
A series of ultra miniature hermetically sealed relays constructed in a transistor style case, providing superior performance and established reliability
characteristics. Designed for high density PCB mounting is available in a variety of sensitivities. Contact configurations and material improvements to
provide a most versatile element to the circuit designer especially for resistive load rated at 2 amperes.
The following construction features ensure the highest reliability in extreme environments:
-
All welded relay construction
-
Cleaning and sealing techniques ensures maximum internal cleanliness
-
500 mA to 2 amperes switching
-
2 form C, DPDT contacts, special metal alloy with gold plating
-
Frame design and force / mass ratio provides exceptional shock and vibration immunity
Series Type
-
MCA*
(note 1)
2 form C, DPDT
Environmental and Physical Specifications
Temperature (Ambient)
Shock
Vibration (sinusoidal)
Sealing
Weight
Finish
- 65°C to + 125°C
75 g, 6 ms.
30 g, 10 to 2000 Hz, 1,5 amplitude peak
All welded, Hermetic
0,09 oz. (2,55 grams) max.
Bright tin lead plated terminations and
case
Electrical Characteristics
(over the Temperature range. Unless otherwise noted)
Coil Data
Contact Rating
(Note: All ratings with grounded
case)
See Typical Characteristics chart
Type Load
Contact Load
Resistive
500 mA to 2 A / 28 Vdc (note 2)
500 mA / 115Vac, 60 and 400 Hz (Case not grounded)
250 mA / 115 Vac, 60 and 400 Hz
Resistive overload
2,5 A / 28 Vdc
Inductive
280 mA / 28 Vdc (320 mH)
0,2
max. initial, 0,35
max. after life
3,5 ms. max.
2,5 ms. max.
2,0 ms. Max.
500 Vrms min., 60 Hz, all points at sea level
10.000 M min. all points at 500 Vdc
150 mW at pick-up, 500 mW at nominal rated coil voltage, at 25 °C
Cycles min.
100.000
50.000
50.000
100
50.000
Contact Resistance
Operate Time
Release Time
Contact Bounce
Dielectric Strength
Insulation Resistance
Sensitivity
High Generation S.r.l.
Tel: + 39 06 96873136
Fax: + 39 06 94443060
57
REV. 0/2012
TO-5 CASE RELAY
DPDT, HIGH CURRENT
Typical Characteristics
Coil
Voltage
Code
5
6
9
12
18
26
Series
MCA
Coil Voltage
[Vdc]
Rated
Max.
5,0
6,0
9,0
12,0
18,0
26,5
5,8
8,0
12,0
16,0
24,0
32,0
Coil resistance
[]
10% at 25 °C
50
98
220
390
880
1560
Operated Voltage
[Vdc] Max. at
25 °C
125 °C
3,0
3,8
5,5
8,0
11,0
14,5
4,2
4,8
7,0
10,0
14,0
18,2
Release Voltage Vdc
Non-release at
Must-release at
25 °C
125 °C
25 °C
- 65 °C
1,5
2,3
3,2
4,2
6,4
8,2
2,5
3,5
5,1
6,8
10,4
13,3
0,20
0,28
0,54
0,65
0,91
1,4
0,14
0,18
0,35
0,43
0,59
0,9
Outline Dimensions
.370
(
9,40)
Dia. max
.
.335
(
8,51)
Dia. max
.
.280 (7,11)
max.
Terminal Locations
.031 (0,79) ± .003 (0,08)
.035 (0,89) ± .010 (0,25)
9
8
7
1
2
3
6
4
See note
Ø
.017 (0,43)
+.002 (0,05)
- .001 (0,03)
.200 (5,08) ± .010 (0,25)
36° ±3°
Note:
- Dimensions are shown in inches (millimetres)
- Terminal Variants: - (C) Standard Wire Terminal = .500 (12,7) min,
- (W) Long Wire Terminal = 1.500 (38,1) min,
- (P) Pin Terminal = .187 ± .010 (4,75 ± 0,25)
Note:
- Dimensions are shown in inches (millimetres)
- Viewed from terminals, numbers are for reference only
Schematic Diagram
Spreader Pads
Relays can be supplied with a spreader pad epoxied to the relay
header, to prevent the possible shorting of printed circuit board land
lines and to facilitate circuit board cleaning. To order relay with pad
add. “S” or “S2”to Part Number, Example:
MCAW - 26S
S
Basic
.370
(9,40)
sq max.
.100 (2,54) Typ.
.390
(9,91)
sq max.
.100 (2,54)
.300 (7,62)
±.005(0,13)
S2
.100 (2,54)
Typ.
.156 (3,96)
.103 (2,62)
Note: Schematics are viewed from terminals
Note:
-Dimensions are in inches (millimetres)
Note:
1 “ * ” Indicates Terminal Variants: C, P or W
2 Not suitable for use below 500 mA resistive
How to Order, (Part Numbering System)
MCA W
- 26
S
Series
C - Wire terminal
P - Pin terminal
W - Long wire terminal
Spreader Pad (optional)
Coil Voltage Code
High Generation S.r.l.
Tel: + 39 06 96873136
Fax: + 39 06 94443060
58
REV. 0/2012
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