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RD Series

Features | Dimensions | Schematics | Pad Layout | Part Number System | Coil Ratings | Contact Ratings | Characteristics | Reference Data

Features

UL & CUL File #E256619

1. Ultra-miniature size with universal terminal footprint
2. High contact capacity : 12A
3. Sealed types available
4. Low coil power consumption

Dimensions

Unit: mm

NOTE 07.15.09: PCN pending to change lead length from 4.5 ± 0.2mm to 3.5 ± 0.3mm.

Schematics

(Bottom view)

Pad Layout

(Bottom view)
Unit: mm

Part Number System

RD
1		 1A
2		 - 12
3		 S
4

1 Basic Designation
    

RD = RD Series

2 Contact Arrangement
    

1A = 1 Form A (SPST-NO)
1B = 1Form B (SPST-NC)
1C = 1 Form C (SPDT)
3 Coil Voltage
     3~48V
4 Enclosure
Nil = Unsealed type
S = Sealed type

Coil Ratings (at 20°C)

Coil Nominal Voltage
(VDC)

Coil Resistance
(Ω ± 10%)

Pick-Up Voltage
(VDC) max.

Drop-Out Voltage
(VDC) min.

Nominal Operating
Power (W)
Max. Allowable Voltage
3
25
2.25
0.15

0.36
130% of nominal voltage
5
69
3.75
0.25
6
100
4.50
0.30
9
225
6.75
0.45
12
400
9.00
0.60
18
900
13.5
0.90
24
1600
18.0
1.20
48
6400
36.0
2.40
 

Contact Ratings

Contact Arrangement
1C; 1A ; 1B
Max. Swittching Power
1250VA 280W
Mac. Switching Voltage
250VAC 125VDC
Max. Switching Current
12A
Contact Resistance (By voltage drop 6V 1A)
50mΩ max.
UL/ C-UL Resistive Load (cos ø = 1)

Inductive Load (cos Ø = 0.75 ~ 0.8)
1A Arrangement only
12A / 125VAC
15A /125VAC(NO)
10A / 250VAC(NO)
10A / 28VDC
7A / 250VAC
3A / 125VAC
Contact Material
silver alloy

Characteristics

Electrical Life (at 20cpm)
1 x 105
Mechanical Life (at 180 cpm)
1 x 107
Initial Insulation Resistance
Min. 100MΩ 500VDC
Operate Time
8ms max.
Release Time
5ms max.
Initial Breakdown Voltage
50/60Hz 750VAC 1 min. (between open contacts)
50/60Hz 1500VAC 1 min. (between coil & contact)
Vibration Resistance
Functional: 10 to 55Hz at double Amplitude of 1.5mm
Destruction: 10 to 55Hz at double Amplitude of 1.5mm
Shock Resistance
Functional: Min. 10G
Destruction: Min. 100G
Ambient Temperature
-40°C ~ +85°C
Temperature Rise (max.)
65°
Operating Humidity
45 to 85% RH
Unit Weight
Approx. 9g

Reference Data

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Industrial Relays

Notes on Correct Use

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Last updated: 9-1-07