F E at u ꢀ E S
EY Series
• Suitable for automatic machine insertion
• Ideal for high energy/high peak power applications
• Products with lead-free terminations meet EU
RoHS requirements
Ceramic Composition
10% Tolerance
• Higher reliability against disconnection compared
to wirewound resistors and film resistors
SEꢀIES SPECIFICatIONS
Series Watts max.* Resistance range Tolerance Joules max.** Max. working volts
EY 2.5 10Ω - 390KΩ ±10% 400 550
* at 25°C. **For a single impulse.
ChaꢀaCtEꢀIStICS
Basedꢀonꢀ25°Cꢀfreeꢀairꢀrating
Test Condition
Requirement ∆R ±( +0.05Ω)
Power Rating
TCR
Withinꢀregulatedꢀtoꢀtolerance
-900±300:ꢀR<100Ω
-1200±300:ꢀR≥100Ω
Resistance
Measurement
voltage
Resistance
3.3Ω~8.2Ωꢀ
10Ω~82Ωꢀ
0.3Vꢀ
1.0V
25°C
Abs.ꢀmax.ꢀworking:ꢀ550V
Abs.ꢀmax.ꢀoverload:ꢀ1100V
Abs.ꢀmax.ꢀpulse:ꢀ25kV
Voltage
100Ω~390kΩꢀ 3.0V
+25°C/-40°Cꢀandꢀ+25°C/+125°C <100Ω:ꢀ-900+/-ꢀ300ppm
≥100Ω:ꢀ-1200+/-300ppm
TCR
Voltage Coefficient
Overload
-40°Cꢀtoꢀ+110°C
Operating
Temp. Range
Ratedꢀvoltageꢀandꢀratedꢀvoltageꢀ 0~-0.05%/V
xꢀ10%ꢀ(Applyꢀforꢀoverꢀ1kΩ)
±10%ꢀstandard
Tolerance
Ratedꢀvoltageꢀxꢀ2.5ꢀorꢀmaximumꢀ ±2%ꢀlimit;ꢀ0.4%ꢀtypical
overloadꢀvoltageꢀforꢀ5s,ꢀwhich-
everꢀless
Derating
100
80
60
40
20
25°
Theꢀresistorꢀmountedꢀtoꢀtheꢀtestꢀ ±5%
circuitꢀatꢀright.ꢀSingleꢀimpulseꢀ
Single impulse
rating
Protection
resistor
testꢀofꢀ10ꢀohmꢀresistorꢀresultingꢀ
inꢀ3.3ms.
Rx
DC
500 volts
C=3300uF
350°C±10°C,ꢀ3.5s±0.5s
±2%ꢀlimit;ꢀ0.8%ꢀtypical
Resistance to sol-
dering heat
0
-40 -20
0
20 40 60 80
110°
Ambient Temperature, °C
-40°C(30min.)/+85°C(30min.),ꢀ5ꢀ ±2%ꢀlimit;ꢀ0.4%ꢀtypical
cycles
Rapid change of
temperature
40°C±2°C,ꢀ90%~95%RH,ꢀ
1000h,ꢀ1.5hꢀON/0,ꢀ5hꢀOFFꢀ
cycles
±5%ꢀlimit;ꢀ0.6%ꢀtypical
Moisture resis-
tance
40°C±2°C,ꢀ1000h,ꢀ1.5hꢀON/0,ꢀ5hꢀ ±5%ꢀlimit;ꢀ0.4%ꢀtypical
OFFꢀcycles
Load life
DippingꢀinꢀIPAꢀorꢀXyleneꢀforꢀ3ꢀ
minutesꢀandꢀleavingꢀforꢀ10ꢀmin-
utesꢀafterꢀremovingꢀdrops,
thenꢀbrushingꢀ10ꢀtimes.
Noꢀabnormalityꢀin
appearance.ꢀMarking
shallꢀbeꢀeasilyꢀlegible.
Resistance to
Solvent
200V,ꢀ112ꢀJoules,ꢀ10000ꢀcycles,ꢀ ±2%
5600ufꢀcapacitorꢀdischarge,ꢀ26ꢀ
secondꢀrestꢀtime
Pulse Tolerance
(continued)
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