TO-5 CASE RELAY
DPDT
Basic
Suppression
Suppression/Steering
Transistor Driven
Product Description
Series
MA
A series of ultra miniature hermetically sealed relays constructed in a transistor style case, providing superior performance and established reliability
characteristics. Available in a variety of sensitivities contact configurations and hybrid improvements, to provide a most versatile element to the circuit
designer.
The following construction features ensure the highest reliability in extreme environments:
-
All welded relay construction
-
Cleaning and sealing techniques ensures maximum internal cleanliness
-
Low level to 1 ampere switching
-
2 form C, DPDT contacts, special metal alloy with gold plating
-
Frame design and force / mass ratio provides exceptional shock and vibration immunity
Low intercontact capacitance and contact circuit losses, provides also a reliable switching functions in demanding RF applications, combined with small
size and low coil power dissipation (see figure 1).
(note 1)
Basic Relay, 2 form C, DPDT
Basic Relay combined with an internal diode for coil
transient suppression
Basic Relay incorporates two internal diodes for coil
transient suppression and polarity reversal protection
Basic Relay incorporating an internal transistor driver
and diode for coil transient suppression
-
-
-
Series Types
MA*
MA*D
MA*DD
-
MA*T
Environmental and Physical Specifications
Temperature (Ambient)
Shock
Vibration (sinusoidal)
Vibration (random)
Acceleration
Sealing
Weight
- 65°C
to + 125°C
75 g, 6 ms.
30 g, 10 to 3000 Hz
0,4 g²
/ Hz, 50 to 2000 Hz
50 g
All welded, Hermetic
0,09 oz. (2,55 grams) max.
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
Cycles min.
Low Level
1.000.000
10 to 50
A
/ 10 to 50 mV
Resistive
100.000
1 A / 28 Vdc
100.000
250 mA / 115Vac, 60 and 400 Hz (Case not grounded)
100.000
100 mA / 115 Vac, 60 and 400 Hz
Resistive overload
100
2 A / 28 Vdc
Inductive
100.000
200 mA / 28 Vdc (320 mH)
Lamp
100.000
100 mA / 28 Vdc
0,1
max. initial, 0,2
max. after life
2,0 ms. max.
1,5 ms. max. Series: MA*
4,0 ms. max. Series: MA*D, MA*DD
7,5 ms. max. Series: MA*T
1,5 ms. max.
500 Vrms min., 60 Hz, all points at sea level
125 Vrms min., 60 Hz, all points at 70.000 ft.
10.000 M min. all points at 500 Vdc
0,7 pF typical
130 mW at pick-up, 450 mW at nominal rated coil voltage, at 25
°C
100 Vdc min. Series: MA*D, MA*DD, MA*T
1,0 Vdc max. Series: MA*D, MA*DD, MA*T
Emitter-Base Voltage (Vebo)
6,0 Vdc min.
80 Vdc min.
Collector-Base Breakdown Voltage (Vcbo) (Ic = 100
A)
Base Turn-Off Voltage
0,3 Vdc min.
50
40
30
20
10
1,0
0,8
0,6
0,4
0,2
Contact Resistance
Operate Time
Release Time
Contact Bounce
Dielectric Strength
Insulation Resistance
Intercontact Capacitance
Sensitivity
Diode P.I.V.
Negative Coil Transient
Transistor Characteristics
at 25 °C
(Series MA*T)
Figure 1 - Radio Frequency Curves
C
A
–
Insertion loss
B
–
Return loss (VSWR)
C
–
Isolation across contacts
1,3
Note:
Radio frequency curves are typical
characteristics based on factory
knowledge.
Tests
to
ensure
compliance on RF performance, are
not performed.
dB
1,2
VSWR
1,1
B
A
0,01
0,05
0,01
0,5
1,0
2,0
0
FREQUENCY (GHz)
Hi-G ITALIA S.r.l.
Tel: + 39 06 9699666
SS. Appia Km. 56.420
Fax: + 39 069698688
Cisterna di Latina - Italy
56
REV. 10/2006
TO-5 CASE RELAY
DPDT
Basic
Suppression
Suppression/Steering
Transistor Driven
Typical Characteristics
Coil Voltage Code
Series
MA
Description
5
Vdc
Coil Voltage
Coil Resistance
at 25°C
MA*, MA*D, MA*DD, MA*T
MA*, MA*D, MA*DD, MA*T
MA*, MA*D, MA*T
MA*DD
MA*DD
Meas.
6
Nom.
Max.
10%
Min.
Max.
Min.
Max.
Typ.
Typ.
Min.
Max.
Min.
Max.
Max.
5,0
5,8
50
39
93,2
128,2
82,2
112,1
2,7
3,2
0,22
1,4
0,6
2,3
3,00
6,0
8,0
98
78
58,3
78,3
52,9
69,9
3,5
4,0
0,28
2,0
0,7
2,8
2,04
9,0
12,0
220
33,0
42,9
35,3
47,4
5,3
6,3
0,54
3,0
0,9
4,2
1,36
12,0
16,0
390
25,6
32,8
26,6
35,8
7,0
8,0
0,63
4,0
1,1
5,2
1,03
18,0
24,0
880
17,5
22,1
17,9
24,0
10,5
11,5
0,91
6,0
1,4
7,3
0,68
26,5
32,0
1560
14,8
18,5
14,7
19,8
14,2
15,2
1,37
8,0
1,8
9,5
0,50
Series Types
9
12
18
26
(MA only)
30
30,0
36,0
2500
-
-
-
-
-
17,7
-
1,50
10,0
-
-
-
Coil Current
at 25°C
mAdc
MA*T
MA*, MA*D, MA*T
MA*DD
MA*, MA*D, MA*T
Pick-up Voltage
at 25°C
Drop-Out
Voltage
at 25°C
Base Current to
Turn-on
Vdc
Vdc
MA*DD
MA*T (limit for base / emitter current
to 15 mA max.)
.370
(
9,40)
Dia. max
.
.335
(
8,51)
Dia. max
.
.280 (7,11)
max.
mAdc
Outline Dimensions
Terminal Locations
Basic, Suppressed and Transistor Driven
.031 (0,79)
± .003 (0,08)
.035 (0,89)
± .010 (0,25)
9
8
7
Transistor base connection
10
1
2
3
6
5
4
See note
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)
Ø
.017 (0,43)
+.002 (0,05)
- .001 (0,03)
.200 (5,08)
± .010 (0,25)
36°
±3°
Ground Pin
Note:
- Dimensions are shown in inches (millimetres)
- Viewed from terminals, numbers are for reference only
- Ground pin is optional
Schematic Diagrams
-
-
+
+
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:
MAWD - 26S
Spreader Pads
Suppression/Steering
Basic
S
.370
(9,40)
sq max.
+
.100 (2,54) Typ.
.390
(9,91)
sq max.
.300 (7,62)
±.005(0,13)
S2
.100 (2,54)
Typ.
.156 (3,96)
.100 (2,54)
+
-
+
-
.103 (2,62)
Suppression
Note: Schematics are viewed from terminals
Note:
-Dimensions are in inches (millimetres)
Transistor Driven
Note:
1
“
*
”
Indicates Terminal Variants: C, P or W
How to Order, (Part Numbering System)
MA W
D
G - 26 S
Series
C - Wire terminal
P - Pin terminal
W - Long wire terminal
- Basic
D - Diode Suppression
DD - Suppression/Steering
T - Transistor Driven
Spreader Pad (optional)
Coil Voltage Code
Ground Pin (optional)
Hi-G ITALIA S.r.l.
Tel: + 39 06 9699666
SS. Appia Km. 56.420
Fax: + 39 069698688
Cisterna di Latina - Italy
57
REV. 10/2006
Embedded System
京公网安备 11010802033920号
EEWORLD
