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
・
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
Temperature
coefficient
of resistance
Resistance tolerance
Series
code
Current sensing surface mount resistors
Nominal resistance value
Size: PRL0816, PRL1220, PRL1632, PRL3264
Series
code
Resistance tolerance
Nominal resistance value
Size: RL3720W, RL7520W
◆Electrical
Specification
Type
Power
ratings
Temperature
coefficient
of resistance
Resistance range(Ω) Resistance tolerance
±0.5% (D)
±1% (F)
±2% (G)
±5% (J)
Maximum Resistance Operating
voltage value series temperature
Packaging
quantity
(ppm/°C)
±50
PRL / RL series
PRL0816
1/3W
±100
0 ∼ +200
0 ∼ +350
±50
±100
0 ∼ +200
0 ∼ +350
±50
±100
0 ∼ +200
0 ∼ +350
±50
PRL1220
PRL1632
2/3W
1W
PRL3264
2W
±100
0 ∼ +200
0 ∼ +350
±50(Q)
±100(R)
0 ∼ +200(S)
0 ∼ +350(T)
±50(Q)
±100(R)
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
ー
ー
ー
ー
ー
ー
ー
ー
100m≦R≦1
5m≦R≦91m
1m≦R≦4m
100m≦R≦470m
10m≦R≦91m
100m≦R≦470m
10m≦R≦91m
ー
E-24
ー
E-24
1m step
(7m ~ 10m)
E-24
1m step
(5m ~ 10m)
E-24
1m step
(3m ~ 10m)
T5
ー
ー
-55℃
~ 125℃
√(P・R)
3m≦R≦4m
RL3720W
1W
ー
E-24
1m step
(1m ~ 10m)
4,000pcs
ー
RL7520W
2W
0 ∼ +200(S)
0 ∼ +350(T)
0 ∼ +420(T)
0 ∼ +800(T)
5m≦R≦9m
1m≦R≦4m
E-24
1m step
(1m ~ 10m)
◆Dimensions
L
Type
PRL0816
W
(inch)
0603
0805
1206
2512
1508
3008
Size
L
0.80±0.20
1.25±0.20
1.60±0.20
3.20±0.20
2.00±0.20
2.00±0.20
W
1.60±0.20
2.00±0.20
3.20±0.20
6.40±0.20
3.75±0.30
7.50±0.30
a
ー
ー
ー
ー
0.40±0.20
0.40±0.20
b
0.20±0.10
0.35±0.15
0.45±0.15
0.90±0.15
0.40＋0.20
0.40±0.20
t
0.40±0.10
0.50±0.10
0.50±0.10
0.50±0.10
0.50±0.20
0.50±0.20
（unit：mm）
PRL1220
PRL1632
a
t
b
PRL3264
RL3720W
RL7520W
59
◆ESL
(Equivalent series inductance)
6
5
4
3
2
1
0
0.1
1
10
group1：Distance
group2：Distance
group3：Distance
group4：Distance
between
between
between
between
the
the
the
the
two
two
two
two
electrodes6.4½½
（RL-3264）
electrodes3.2½½
（RL1632）
electrodes1.6 ∼ 2.0½½
（RL3720W）
electrodes1.25½½
（KRL2012）
ESL(nH)
Short
side
terminal
type
Long
side
terminal
type
Frequency/MHz
100
◆Surface
temperature data
○
The high power type land pattern and
surface temperature
RL3720W
（Power rating 1Ｗ）
Increase of the surface
temperature⊿T（℃）
Land area
（S） ・
＝Ｗ Ｌ
Chip resistors
Land pattern
1W applied
0.75W
applied
0.5W applied
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.
220
220
RL7520W（Power rating 2Ｗ）
Land area
（S） ・
＝Ｗ Ｌ
Chip resistors
2W applied
Land pattern
Increase of the surface
temperature⊿T（℃）
200
180
160
120
100
80
60
40
20
0
0
W
L
200
180
160
120
100
80
60
40
20
0
0
1W applied
0.5W applied
W
L
(27mm)
(27mm)
5
10
W
（mm）
15
20
25
5
10
W
（mm）
15
20
25
Current sensing surface mount resistors
300
RL3720W
（Power rating 0.5Ｗ）
Increase of the surface
temperature⊿T（℃）
（4.15mm）
300
W
250
200
150
100
RL7520W
（Power rating 1Ｗ）
（7.9mm）
W
Increase of the surface
temperature⊿T（℃）
250
200
150
100
50
0
0
0.5W applied
Chip resistors
0.25W applied
Land pattern
1W applied
0.75W applied
0.5W applied
0.25W applied
Chip resistors
Land pattern
L
L
PRL / RL series
50
0
10
L
（mm）
20
30
0
10
L
（mm）
20
30
◆Derating
Curve
Ratio to
rated power (％)
100
Ratio to
rated power (％)
0
70
125
100
50
50
0
−55
Pulse duration (seconds)
0
−55
0
Pulse duration (seconds)
30
125 150
RL3720W
RL7520W
◆Resistance
to power pulse
Maximum pulse power limit
（W）
200
150
100
50
RL1220-R10
0
0.001
0.01
0.1
1
10
RL3264-R050
RL1632-R050
RL7520W-R10
RL7520-R10
Test procedure
Voltage pulse is applied to the test samples mounted
on the test board.
After each pulse, resistance drift is measured. Pulse
vol tage is increased until the drift exceeds +/-0.5%.
The power at that voltage is defined as the maximum
pulse power.
Pulse duration
（seconds）
60
