303
Type List
Terminal
style
Contact
form
1A
(SPNO)
SONG CHUAN
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.
Designation
(provided with)
----------
Resistor
Diode
(1)
Enclosure style
Dust cover
303-1AH-D
Flux tight
303-1AH-C
Sealed type
303-1AH-V
Sealed type
washable
303-1AH-S
Socket terminal
303-1AH-D-R1 303-1AH-C-R1 303-1AH-V-R1 303-1AH-S-R1
303-1AH-D-D1 303-1AH-C-D1 303-1AH-V-D1 303-1AH-S-D1
Note：(1) 12VDC COIL: 680
Ω
Resistor in parallel
Ordering Information
303
1
1. 303
2. 1A
3. H
4. D
C
V
S
-
1A
2
H
3
-
D
4
-
R1
5
5. Blank -- Standard type
R1
-- Coil parallel with resistor 680
Ω
for
coil voltage 12VDC
D1
-- Coil parallel with diode IN4007 the
positive pole "+" on # 85 terminal
-- Basic series designation
-- Single pole normally open
-- Contact material AgSnO
-- Dust cover
-- Flux tight
-- Sealed type
-- Sealed type washable
Contact Rating
Inductive
Motor fuel-pump
Motor radiator-fan
Lamp
Resistive
Max. switching current
4A 14VDC
；ON
3s / OFF 3s -30∼+80℃ 880K ops.
8A 14VDC Inrush 30A
；ON
1s / OFF 3s -30
∼+80℃
160K ops.
16A 14VDC Inrush 80A
；ON
2s / OFF 5s -30
∼+80℃
440K ops.
16A 14VDC Inrush 80A
；ON
3s / OFF 3s -30
∼+100℃
100K ops.
20A 14VDC +25℃ 100K ops.
Coil 16VDC / Contact 20A 14VDC +100℃
Coil Rating (DC)
Rated
voltage
(V)
Rated current
(mA)
Coil resistance Max. continuous
voltage
at 85˚C
133 % of
12
80
150
rated
voltage
(Ω)
Pick up
voltage(Max)
at 23˚C
60 % of
rated
voltage
Drop out
voltage(Min)
at 23˚C
10 % of
rated
voltage
approx. 0.96W
Power consumption
at rated
voltage
±10
% at 23˚C
±10
% at 23˚C
246
303
Specification
Contact material
Contact voltage drop
Operate time
Release time
(1)
(1)
(1)
(1)
SONG CHUAN
SONG CHUAN
303
AgSnO alloy
NO:200 mV Max. at 15A NC:250mV Max. at 10A
10 ms MAX
10 ms MAX
20 MΩ Min. (DC 500V)
Between open contact
Between contact and coil
Operating extremes
Damage limits
Operating extremes
Damage limits
Mechanical
:
AC 500V , 50/60Hz 1 min.
:
AC 500V , 50/60Hz 1 min.
Insulation resistance
Dielectric strength
(1)
Vibration resistance
10∼500Hz , 5.0G
10∼500Hz , 5.0G
10G
100G
10,000,000 operations
(frequency 18,000 operations/hr)
100,000 operations
(frequency 1,800 operations/hr)
-40 ~ +125˚C (no freezing)
Approx. 20 g
Shock resistance
Life expectancy
Electrical
Operating ambient temperature
Weight
Note:(1)Initial value
Outline Dimensions
16
(0.630)
15
(0.591)
(0.433)
11
(0.933)
23.7
0.8X5
(0.031)
8.1
(0.319)
Wiring Diagram
BOTTOM VIEW
(0.307)
7.8
1A
30
85
86
87
1A (R1)
30
85
86
87
247
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Song Chuan
:
303-1AH-D-R1-12VDC 303-1AH-C-D1-12VDC 303-1AH-D-12VDC 303-1AH-C-R1-U04-24VDC 303-1AH-S-R1-U06-
12VDC 303-1AH-C-D1-24VDC
GD32 MCU
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