Low resistance chip resistors
(long-side terminal)
■PRL / RL series
Features
・ Innovative structure that takes consideration of heat dissipation suppresses the
surface temperature enabling the small sizes, reduction of the influence on
surrounding components, excellent temperature cycle resistance, low ESL and low
noise.
Applications
PRL / RL series
Current sensing surface mount resistors
・ PC power sources, inverters, automotive electronics, adopters, industrial machines
◆Part numbering system
PRL 1220 - R010 - D - T5
Packaging
quantity:
T5(5,000pcs)
RL 3720W T - R10 - F
Resistance tolerance
Nominal resistance value
Nominal resistance value
Series
code
Resistance
tolerance
Temperature coefficient of resistance
Series
code
Size: PRL0816, PRL1220, PRL1632, PRL3264
Size: RL3720W, RL7520W
◆Electrical Specification
Type
Power
ratings
Temperature
coefficient
of resistance
Resistance range(Ω) Resistance tolerance
(ppm/°C)
±0.5% (D)
PRL0816
1/3W
PRL1220
2/3W
PRL1632
1W
PRL3264
2W
±100
0 ∼ +200
0 ∼ +350
±50
±100
0 ∼ +200
0 ∼ +350
±50
±100
0 ∼ +200
0 ∼ +350
±50
RL3720W
1W
±100
0 ∼ +200
0 ∼ +350
±50(Q)
±100(R)
ー
0 ∼ +200(S)
ー
0 ∼ +350(T)
ー
±50(Q)
2W
E-24
ー
ー
E-24
1m step
(7m ~ 10m)
ー
E-24
1m step
(5m ~ 10m)
ー
√(P・R)
3m≦R≦4m
-40℃
~ 125℃
T5
E-24
1m step
(3m ~ 10m)
E-24
1m step
(1m ~ 10m)
ー
-55℃
1m≦R≦4m
~ 125℃
100m≦R≦470m
10m≦R≦91m
100m≦R≦470m
10m≦R≦91m
Packaging
quantity
±5% (J)
5m≦R≦91m
ー
ー
ー
ー
0 ∼ +200(S)
0 ∼ +350(T)
0 ∼ +420(T)
0 ∼ +800(T)
◆Dimensions
±2% (G)
100m≦R≦1
ー
±100(R)
RL7520W
±1% (F)
75m≦R≦100m
43m≦R≦68m
ー
ー
33m≦R≦39m
ー
18m≦R≦27m
ー
10m≦R≦15m
56m≦R≦100m
47m≦R≦51m
ー
20m≦R≦43m
10m≦R≦18m
ー
7m≦R≦9m
ー
56m≦R≦100m
20m≦R≦51m
10m≦R≦18m
ー
5m≦R≦9m
56m≦R≦100m
47m≦R≦51m
ー
20m≦R≦43m
ー
10m≦R≦18m
ー
5m≦R≦9m
±50
Maximum Resistance Operating
voltage value series temperature
4,000pcs
E-24
1m step
(1m ~ 10m)
ー
5m≦R≦9m
1m≦R≦4m
L
Type
W
a
t
b
Size
(inch)
L
W
a
b
t
PRL0816
0603
0.80±0.20
1.60±0.20
ー
0.20±0.10
0.40±0.10
PRL1220
0805
1.25±0.20
2.00±0.20
ー
0.35±0.15
0.50±0.10
PRL1632
1206
1.60±0.20
3.20±0.20
ー
0.45±0.15
0.50±0.10
PRL3264
2512
3.20±0.20
6.40±0.20
ー
0.90±0.15
0.50±0.10
RL3720W
1508
2.00±0.20
3.75±0.30
0.40±0.20
0.40+0.20
0.50±0.20
RL7520W
3008
2.00±0.20
7.50±0.30
0.40±0.20
0.40±0.20
0.50±0.20
(unit:mm)
55
◆ESL (Equivalent series inductance)
6
group1:Distance
group2:Distance
group3:Distance
group4:Distance
ESL(nH)
5
between
between
between
between
the
the
the
the
two
two
two
two
electrodes6.4mm
(RL-3264)
electrodes3.2mm
(RL1632)
electrodes1.6 ∼ 2.0mm
(RL3720W)
electrodes1.25mm
(KRL2012)
4
Short
side
terminal
type
3
2
Long
side
terminal
type
1
0
0.1
1
Frequency/MHz
10
100
◆Surface temperature data
Chip resistors
120
Land pattern
L
(27mm)
1W applied
80
0.75W
applied
60
40
0.5W applied
20
0
Increase of the surface
temperature⊿T(℃)
160
5
10
15
W
(mm)
20
0.5W applied
200
Chip resistors
150
L
Land pattern
0.25W applied
100
50
0
120
10
L
(mm)
20
(27mm)
100
80
1W applied
60
40
0.5W applied
20
0
5
10
15
20
25
W
(7.9mm)
1W applied
200
150
W
(mm)
RL7520W
(Power rating 1W)
250
Chip resistors
0.75W applied
L
Land pattern
0.5W applied
100
50
0
0
L
Land pattern
2W applied
300
W
W
Chip resistors
160
0
(4.15mm)
250
Land area
(S)
=W・L
180
25
RL3720W
(Power rating 0.5W)
300
200
PRL / RL series
0
Increase of the surface
temperature⊿T(℃)
Increase of the surface
temperature⊿T(℃)
W
180
100
RL7520W(Power rating 2W)
220
Land area
(S)
=W・L
200
Current sensing surface mount resistors
RL3720W
(Power rating 1W)
220
Increase of the surface
temperature⊿T(℃)
These high-power low resistance chip resistors are designed to dissipate heat efficiently
through the land patterns on circuit boards. The actual temperature of the surface of the
resistor is dependent upon the dimensions and the shape of the land patterns.
The high power type land pattern and
surface temperature
○
30
0.25W applied
0
10
L
(mm)
20
30
50
0
−40
0
70
125
100
50
0
−55
0
70
125
Ratio to rated power (%)
100
Ratio to rated power (%)
Ratio to rated power (%)
◆Derating Curve
100
50
0
−55
Ambient temperature (℃)
Ambient temperature (℃)
RL3720W
PRL series
0
30
125 150
Ambient temperature (℃)
RL7520W
Maximum pulse power limit(W)
◆Resistance to power pulse
200
RL7520W-R10
100
Test procedure
RL7520-R10
150
Voltage pulse is applied to the test samples mounted
RL3264-R050
on the test board.
RL1632-R050
After each pulse, resistance drift is measured. Pulse
vol tage is increased until the drift exceeds +/-0.5%.
50
The power at that voltage is defined as the maximum
RL1220-R10
0
0.001
0.01
0.1
1
10
pulse power.
Pulse duration
(seconds)
56
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