Current Sense Resistor Datasheet
Two-Terminal Surface Mount Resistor
WPA/B/C Series
Reliability Specifications
Test
Procedure
Specifications
HBM, 1±±pF, 1.ꢀk ohms Repetition: ꢀ times
Component Classification: ꢀC (2ꢀKV)
TestTemperature: 12ꢀ°C
±1.±5 Appearance: Without distinct damage, and
the marking shall be legible.
ESD
Applied voltage: rated power (derated Power will
be required if temp exceeds the derating point of
part)
±1.±5 Appearance: Without distinct damage, and
the marking shall be legible.
Load Life (Operational Life)
Test Period: 1,±±± hours (condition D)
Test conditions: 8ꢀ°C and 8ꢀ5 RH 1±5 of rated
power
±1.±5 Appearance: Without distinct damage,
and the marking shall be legible.
Biased Humidity
Test Period 1,±±± hours
Repeat 1,±±± cycles as follows:
-ꢀꢀ°C for 3± minutes 12ꢀ°C for 3± minutes
Transition time of 1 minute max
TestTemp 12ꢀ°C
±1.±5 Appearance: Without distinct damage, and
the marking shall be legible.
Temp. Cycling (Thermal Shock)
±1.±5 Appearance: Without distinct damage,
and the marking shall be legible.
HighTemp. Exposure (Storage)
Resistance to soldering heat
Test Period: 1,±±± hours No Electrical Load
Condition B (Solder dip, no pre-heat) 26±°C
±1.±5 Parts must meet initial electrical specs.
3 minute soak 2-3 ounce force
1± strokes/repetition
3 repetitions
Appearance: Without distinct damage, and the
marking shall be legible.
Resistance to Solvents
Terminal Strength (SMD)
Flammability
±1.±5 Appearance: Without distinct damage, and
the marking shall be legible.
Applied force based on part size
UL-94
V-± burning less than 1± seconds or
V-1 burning less than 3± seconds
V-± or V-1 are acceptable
Electrical test not required
Mounted parts subjected to voltages from 9.± to
32 VDC (current clamped up to ꢀ±±A)
Frequency: 1±-2,±±± Hz Acceleration: ꢀG
Test duration: 2± minutes, 12 cycles
Force: 1±±G peakTest duration: 6 ms Half-sine
waveform Velocity: 12.3ft/sec
9± mm span between fulcrums 2 mm bend
6± seconds minimum holding time
Non-activated flux dip: ꢀ-1± seconds SAC solder
dip: ꢀ seconds at 24ꢀ°C
No Flame when full automotive battery
potential is applied.
±1.±5 Appearance: Without distinct damage, and
the marking shall be legible.
±1.±5 Appearance: Without distinct damage, and
the marking shall be legible.
±1.±5 Appearance: Without distinct damage, and
the marking shall be legible.
Flame Retardance
Vibration
Mechanical Shock
Board Flex
Solderability
A new solder shall cover minimum of 9ꢀ5.
© 2023 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 10/16/23
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