SONG CHUAN
303
Features
Ultra Micro ISO Automotive relay.
High Rating up to 20A.
High Temperature withstand up to 125 ambient.
General Purpose for Automotive applications.
Comply with RoHS-Directive 2002/95/EC, and ELV-
Directive 2000/53/EC.
Type List
Terminal style
Contact
form
1A
(SPNO)
Designation
(provided with)
----------
Socket terminal
Resistor
Diode
Flux tight
303-1AH-C
303-1AH-C-R1
303-1AH-C-D1
Enclosure style
Sealed type washable
303-1AH-S
303-1AH-S-R1
303-1AH-S-D1
Ordering Information
303
1
1. 303
2. 1A
3. H
4. C
S
-
1A
2
H
3
-
C
4
-
R1
5
5. Blank -- Standard type
R1
-- Coil parallel with 1/2W resistor for
12V 1.1K , 24V 4.3K
D1
-- Coil parallel with diode IN4007 the
positive pole on # 85 terminal
-- Basic series designation
-- Single pole normally open
-- Contact material AgSnO
-- Flux tight
-- Sealed type washable
Contact Rating
Resistive
Motor
Lamp
20A 14VDC, 10A 28VDC, 100K ops.
16A 14VDC Inrush 80A
16A 14VDC Inrush 80A
ON 2s / OFF 5s, -30 +80
ON 3s / OFF 3s, -30 +100
, 300K ops.
, 100K ops.
Coil Rating (DC)
Rated
Voltage
(V)
12
24
Rated current
10 % at 23
°
C
(mA)
80
40
Coil resistance
10 % at 23
°
C
( )
150
600
Max continuous
voltage
at 85
°
C
133 % of
rated
voltage
Pick up
voltage(Max)
at 23
°
C
60 % of
rated
voltage
Drop out
voltage(Min)
at 23
°
C
8 % of
rated
voltage
approx. 0.96W
Power consumption
at rated
voltage
281
303
Specification
Contact material
Contact voltage drop
(1)
Operate time
(1)
Release time
(1)
Insulation resistance
(1)
Dielectric strength
(1)
Vibration resistance
Shock resistance
SONG CHUAN
AgSnO alloy
Typ. 50mV at 10A
10 ms Max.
10 ms Max.
20 M
Min. (DC 500V)
Between open contact
Between contact and coil
Operating extremes
Damage limits
Operating extremes
Damage limits
Mechanical
10
10
10G
: AC 500V, 50/60Hz 1 min.
: AC 500V, 50/60Hz 1 min.
500Hz , 5.0G
500Hz , 5.0G
100G
10,000,000 operations
(frequency 18,000 operations/hr)
Life expectancy
Operating ambient temperature
Weight
Note :
(1) initial value
-40 ~ +125
°
C (no freezing)
Approx. 20 g
Outline Dimensions
16
(0.630)
15
(0.591)
(0.433)
11
(0.933)
23.7
0.8X4
8.1
(0.319)
(0.031)
86
30
Wiring Diagram
BOTTOM VIEW
D1
(-)
87
86
85
30
87
85
30
(0.307)
7.8
87
85
R1
87
86
85
30
(+)
86
282
SONG CHUAN
303
Engineering Data
Safe breaking,arc extinguished
(normally open contact)for risistive loads
75
70
Life expectancy
10
7
Switching voltage(VDC)
60
50
40
30
0W
28
Number of operations
20
10
6
20
0W
10
W
50
10
5
15
10
0.5
1
2
3
5
7
10
Switching current(A)
0
1
5
10
15
20
25
14VDC resistive load/switching current(A)
Life expectancy
10
Max.allowable ambient temperature
7
Ambient temperature vs.
coil voltage for continuous duty
120
110
100
90
80
70
60
50
40
30
90
100
110
120
130
140
150
160
Number of operations
A
10
6
10
5
0
0
2
4
6
8
10
12
28VDC resistive load/switching current(A)
Applied coil voltage(% of rated nominal)
A:20A Contact load(risistive)
Maximum mean coil temperature=180
Operate time/Release time
8
7
6
5
avg
Operate time
max
Time (ms)
4
3
min
Release time
2
max
avg
min
1
0
70
80
90
100
110
120
130
140
150
% of Nominal coil voltage (at 23
)
————
All specifications subject to change.
Please contact Song Chuan for update.
————
283
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Song Chuan
:
303-1AH-C-R1-U01-12VDC 303-1AH-C-R1-24VDC
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