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6
AS Series
Anti-surge Thick Film Chip Resistors
FEATURES
•Smallsizeandlightweight
•Suitableforbothwaveandreflowsoldering
•Canwithstandhighsurge
•Reductionofassemblycosts
SERIES SPECIFICATIONS
CHARACTERISTICS
Power Max Max Dielectric
Rating Working Overload Withstanding Resistance
Type at 70°C Voltage Voltage Voltage Range
AS08 (0805) 0.33W 150V 300V 500V 1Ω~10MΩ
AS12 (1206) 0.5W 200V 400V 500V 1Ω~10MΩ
AS25 (2512) 1.5W 500V 500V 500V 1Ω~20MΩ
Std. Oper. Temp. -55°C ~ +155°C
Standard Values E-24 values
Construction Thick film
Tolerance ±5% standard; ±10%
and ±20% available
Derating
Reflow
100
Percent Rated Power
Ambient Temperature, °C
60
20
0
80
40
050 100 15570-55
300
Temperature °C
Time
Preheating
150° ~ 180°
90 ±30sec.
Soldering
Cooling
200
50
0
250
100
150
230° ~ 245°/250°
20 ±10sec.
Test ΔR Test Methods (JIS C 5201-1 )
Temperature
Coefficient
1Ω-10Ω: ≤ ±400PPM/°C
(±200 PPM can be provid-
ed on a case to case basis)
11Ω-10MΩ: ≤ ±100PPM/°C
Natural ΔR/°C
R2-R1 x 106 (PPM/°C)
R1(t2-t1)
R1: at room temp. (T1)
R2: at room temp. plus 100°C (T2)
Test pattern: room temp. (T1), room
temp. +100°C(T2)
Short Time
Overload
±(1.0% + 0.1Ω) max. Permanent ΔR after the application of a
potential of 2.5 times RCWV for 5 sec.
Terminal
Bending
±(1.0% + 0.05Ω) max. Twist of Test Board: Y/X = 3/90 mm for
60 sec.
Soldering Heat ±(1.0% + 0.05Ω) max. 260°C±3°C for 10 ±1 sec.
Single Pulse ±(1.0% + 0.1Ω) max. See graph on next page.
Humidity ±(3.0% + 0.1Ω) max. Temporary ΔR after 240 hr. at 40 ±2°C
and 90-95% relative humidity
Load Life in
Humidity
±(3.0% + 0.1Ω) max. ΔR after 1,000 hr. (1.5 hr. "on", 0.5 hr.
"off" ) at RCWV at 40 ±2°C and 90-95%
relative humidity
Load Life ±(3.0% + 0.1Ω) max. ΔR change after 1,000 hr. operat-
ing at RCWV, with duty cycle of (1.5
hours"on", 0.5 hour"off") at 70°C ±2°C
ambient
Solderability Min. 95% coverage Wave Solder: 245°C ±3°C for 2-3 sec.
Temperature
Cycling
±(1.0% + 0.05Ω) max. ΔR after 5 cycles:
-55°C ±3°C 30 min.
Room temp. 10-15 min.
+155°C ±2°C 30 min.
4 Room temp. 10-15 min.
Dielectric
withstanding
voltage
No evidence of flashover,
mechanical damage, arcing
or insulation breakdown
Clamped in the trough of a 90°C metal-
lic v-block at specified AC potential
60-70 sec.
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CHARACTERISTICS
AS Series
Anti-surge Thick Film Chip Resistors
Series L W H a b
AS08 2.00 ±0.15 125 +0.15/-0.10 0.55 ±0.10 0.40 ±0.20 0.40 ±0.20
AS12 3.10 ±0.15 155 +0.15/-0.10 0.55 ±0.10 0.45 ±0.20 0.45 ±0.20
AS25 6.35 ±0.10 3.10 ±0.15 0.55 ±0.10 0.60 ±0.25 0.50 ±0.20
Series Packaging Qty./reel A B T W
AS08 Paper 5,000 pcs. 1.65 2.40 0.81 10
AS12 Paper 5,000 pcs. 2.00 3.60 0.81 10
AS25 Embossed 4,000 pcs. 3.50 6.70 1.0 13.8
DIMENSIONS
(mm)
ORDERING INFORMATION
Standard Part Numbers
Tape and Reel
0805
AS08J1R00ET
AS08J10R0ET
AS08J1000ET
AS08J1001ET
AS08J1002ET
AS08J1003ET
AS08J1004ET
1206
AS12J1R00ET
AS12J10R0ET
AS12J1000ET
AS12J1001ET
AS12J1002ET
AS12J1003ET
AS12J1004ET
2512
AS25J1R00ET
AS25J10R0ET
AS25J1000ET
AS25J1001ET
AS25J1002ET
AS25J1003ET
AS25J1004ET
a a
b b
Pulse Curve Lightning Surge
178 ±260 ±1
13 ±.5
2 ±.5
W ±1
21 ±.5
A ±.2
B ±.2
T ±.1 1.5 +0.1/-0
1.75 ±.1
3.5 ±0.05
4.0 ±.1
8.0 ±.2
Paper
Embossed
2.0 ±.05
A ±.2
B ±.2
1.0 ±.1 1.5 +0.1/-0
1.5 +0.1/-0
1.75 ±.1
3.5 ±0.05
4.0 ±.1
8.0 ±.2
2.0 ±.05
AS08J1004ET
RoHS
compliant
Ohms
First 3 digits are
significant; 4th digit
is multiplier. Values
below 100 ohms use
"R" as a decimal
holder.
examples:
1001 = 1000 ohms
1502 = 15000 ohms
Tolerance
J = 5%
standard
for E24
values
Series
AS08= 0805
AS12= 1206
AS25= 2512
TCR
T= tape and
reel: 0805 and
1206 paper
tape; 2512
embossed tape.
Single
AS25
AS12
AS08
AS25
AS12
AS08
Continuous (100KΩ)
AS25
AS12
AS08
1.2/50µs Lightning Surge
Resistance (Ω)
Voltage (V)
10,000
1,000
100
101 10 100 1K 10K 1M100K
Mouser Electronics
Authorized Distributor
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Ohmite:
AS12J1001JET AS12J1002JET AS08J10R0JET AS12J1004JET AS25J1001JET AS08J1000JET AS25J1004JET
AS25J1003JET AS12J1R00JET AS08J1003JET AS08J1001JET AS12J1003JET AS25J1R00JET AS25J1002JET
AS25J10R0JET AS08J1004JET AS08J1002JET AS25J1000JET AS12J10R0JET AS12J1000JET AS08J10R0ET
AS25J1004ET AS12J1R00ET AS25J10R0ET AS25J1R00ET AS08J1001ET AS25J1003ET AS25J1002ET
AS12J1002ET AS08J1000ET AS12J1001ET AS12J10R0ET AS12J1000ET AS08J1004ET AS12J1003ET
AS08J1003ET AS08J1002ET AS12J1004ET AS08J1R00ET AS25J1000ET AS25J1001ET