MINIATURE RELAY
2 POLES—1 to 2 A
(FOR SIGNAL SWITCHING)
BA SERIES
s
FEATURES
q
q
q
q
q
q
q
q
q
Slim type relay for high density mounting
CSA recognized
Conforms to IEC60950, Bellcore specification and FCC
Part 68
—Clearance more than 2.0 mm between coil and contacts
—Creepage more than 2.5 mm between coil and contacts
—Dielectric strength 2,000 VAC between coil and contacts
—Surge strength 3,000 V between coil and contacts (at 2
×
10
µs
surge wave)
High sensitivity and low consumption power
Latching type available
High reliability—bifurcated contacts
Plastic sealed type
Conforms to UL (under approval)
SMT is available: BAS
s
ORDERING INFORMATION
[Example]
(a)
(b)
(c)
(d)
(e)
(g)
BA L – D
(a) (b) (*) (c)
12
(d)
W K
(e) (g)
BA : BA Series
Nil : Standard type
L : Latching type
Nil : Single winding type
D : Double winding type
Refer to the COIL DATA CHART
W : Bifurcated type
K : Plastic sealed type
Series Name
Operation Function
Number of Coil
Nominal Voltage
Contact
Enclosure
Note: Actual marking omits the hyphen (-) of (*)
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SAFETY STANDARD AND FILE NUMBERS
CSA CERTIFIED NRTL/C to C22.2 No. 14 No. 950 (File No. LR35579), UL 508, 1950 (File No. E45026)
Relay type
BA
BAL
BALD
Nominal voltage
1.5 to 48 VDC
0.5 A
2A
0.3 A
125 VAC
30 VDC
110 VDC
Contact rating
resistive
1
BA SERIES
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SPECIFICATIONS
Standard
Item
BA-( ) W-K
Contact
Arrangement
Material
Style
Resistance (initial) (at 1 A 6 VDC)
Rating (resistive)
Maximum Carrying Current
Maximum Switching Power
Maximum Switching Voltage
Maximum Switching Current
Minimum Switching Load*
1
Capacitance
Coil
Nominal Power (at 20°C)
Operate Power (at 20°C)
Operating Temperature
Time Value
Operate (at nominal voltage)
Release (at nominal voltage)
Insulation
Resistance (at 500 VDC)
between open contacts
Dielectric
Strength
between adjacent contacts
between coil and contacts
Surge Strength
Life
Mechanical
Electrical
Other
Misoperation
Vibration
Resistance Endurance
Misoperation
Shock
Resistance Endurance
Weight
2,000 VAC 1 minute
3,000 V (at 2
×
10
µs)
1
×
10
7
operations minimum
2
×
10
5
operations minimum (0.5 A 125 VAC)
5
×
10
5
operations minimum (1 A 30 VDC)
10 to 55 Hz (double amplitude of 3.3 mm)
10 to 55 Hz (double amplitude of 5.0 mm)
500 m/s
2
(11
±1
ms)
1,000 m/s
2
( 6
±1
ms)
Approximately 1.9 g
1,000 VAC 1 minute
1,500 V (at 10
×
160
µs)
2 form C (DPDT)
Gold overlay silver alloy
Bifurcated
Maximum 50 mΩ
0.5 A 125 VAC or 1 A 30 VDC
2A
62.5 AV, 30 W
250 VAC, 220 VDC
2A
0.01 mA 10 mVDC
Approximately 0.5 pF (between open contacts, adjacent contacts)
Approximately 1.0 pF (between coil and contacts)
0.25 to 0.36 W
0.14 to 0.2 W
0.2 W
0.15 W
0.36 W
0.205 W
Single Winding
Latching Type
BAL-( ) W-K
Double Winding
Latching
BAL-D ( ) W-K
–40°C to +70°C (no frost) (refer to the CHARACTERISTIC DATA)
Maximum 6 ms
Maximum 4 ms
Maximum 6 ms (set)
Maximum 6 ms (reset)
Minimum 1,000 MΩ
1,000 VAC 1 minute
*
1
Minimum switching loads mentioned above are reference values. Please perform the confirmation test with the actual
load before production since reference values may vary according to switching frequencies, environmental conditions
and expected reliability levels.
2
BA SERIES
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COIL DATA CHART
MODEL
BA-1.5 W-K
BA- 3 W-K
BA-4.5 W-K
Standard Type
BA- 5 W-K
BA- 6 W-K
BA- 9 W-K
BA- 12 W-K
BA- 18 W-K
BA- 24 W-K
Nominal
voltage
1.5 VDC
3 VDC
4.5 VDC
5 VDC
6 VDC
9 VDC
12 VDC
18 VDC
24 VDC
Coil resistance
(
±
10%)
9
Ω
36
Ω
81
Ω
100
Ω
144
Ω
324
Ω
576
Ω
1,296
Ω
2,304
Ω
Must operate
voltage*
1
+1.13 VDC
+2.25 VDC
+3.38 VDC
+3.75 VDC
+4.5 VDC
+6.75 VDC
+9.0 VDC
+13.5 VDC
+18.0 VDC
+36.0 VDC
Must release
voltage*
1
+0.15 VDC
+0.3 VDC
+0.45 VDC
+0.5 VDC
+0.6 VDC
+0.9 VDC
+1.2 VDC
+1.8 VDC
+2.4 VDC
+4.8 VDC
Nominal
power
250 mW
250 mW
250 mW
250 mW
250 mW
250 mW
250 mW
250 mW
250 mW
360 mW
BA- 48 W-K
48 VDC
6,400
Ω
Note: *1 Specified values are subject to pulse wave voltage.
All values in the table are measured at 20°C.
Nominal
voltage
1.5 VDC
3 VDC
4.5 VDC
5 VDC
6 VDC
9 VDC
12 VDC
18 VDC
24 VDC
1.5 VDC
3 VDC
4.5 VDC
5 VDC
6 VDC
9 VDC
12 VDC
18 VDC
24 VDC
Coil resistance
(
±
10%)
11.25
Ω
45
Ω
101
Ω
125
Ω
180
Ω
405
Ω
720
Ω
1,620
Ω
2,880
Ω
P 6.25
Ω
S 6.25
Ω
BAL-D 3 W-K
BAL-D4.5 W-K
BAL-D 5 W-K
BAL-D 6 W-K
BAL-D 9 W-K
BAL-D 12 W-K
BAL-D 18 W-K
BAL-D 24 W-K
P
S
Double Winding Latching Type
25
Ω
25
Ω
MODEL
Single Winding Latching Type
BAL-1.5 W-K
BAL- 3 W-K
BAL-4.5 W-K
BAL- 5 W-K
BAL- 6 W-K
BAL- 9 W-K
BAL- 12 W-K
BAL- 18 W-K
BAL- 24 W-K
BAL-D1.5 W-K
Set
voltage*
1
+1.13 VDC
+2.25 VDC
+3.38 VDC
+3.75 VDC
+4.5 VDC
+6.75 VDC
+9.0 VDC
+13.5 VDC
+18.0 VDC
+1.13 VDC
Reset
voltage*
1
–1.13 VDC
–2.25 VDC
–3.38 VDC
–3.75 VDC
–4.5 VDC
–6.75 VDC
–9.0 VDC
–13.5 VDC
–18.0 VDC
+1.13 VDC
Nominal
power
200 mW
200 mW
200 mW
200 mW
200 mW
200 mW
200 mW
200 mW
200 mW
360 mW
360 mW
+2.25 VDC
+2.25 VDC
+3.38 VDC
+3.38 VDC
+3.75 VDC
+3.75 VDC
+4.5 VDC
+4.5 VDC
+6.75 VDC
+6.75 VDC
+9.0 VDC
+9.0 VDC
+13.5 VDC
+13.5 VDC
+18.0 VDC
+18.0 VDC
P 56.3
Ω
S 56.3
Ω
P 69.4
Ω
S 69.4
Ω
P
S
P
S
P
S
P
S
100
Ω
100
Ω
225
Ω
225
Ω
400
Ω
400
Ω
900
Ω
900
Ω
360 mW
360 mW
360 mW
360 mW
360 mW
360 mW
360 mW
P: Primary coil S: Secondary coil
P 1,600
Ω
S 1,600
Ω
Note: *1 Specified values are subject to pulse wave voltage.
All values in the table are measured at 20°C.
3
BA SERIES
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CHARACTERISTIC DATA
4
BA SERIES
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REFERENCE DATA
Distribution of Operate & Release Time
100
80
Distribution (%)
BA-5W-K
n=200
Operate
Release
60
40
20
0
1
2
3
4
5
6
7
Time (ms)
5
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