L
W
a
t
b
◆Part numbering system
◆Electrical Specification
◆Dimensions
PRL1220-R010-D-T5
（unit：mm）
PRL0816
PRL1220
PRL1632
PRL3264
RL3720W
RL7520W
E-24
E-24
1mstep
(7m˜10m)
E-24
1mstep
(5m˜10m)
E-24
1mstep
(3m˜10m)
E-24
1mstep
(1m˜10m)
E-24
1mstep
(1m˜10m)
√(P・R)
Resistance range(Ω) Resistance tolerance
Resistance
value series
-55℃
˜125℃
Operating
temperature
(ppm/°C)±0.5% (D) ±1% (F) ±2% (G) ±5% (J)
Type
Maximum
voltage
Power
ratings
1/3W
2/3W
1W
2W
1W
2W
±50
±100
0 〜 +200
0 〜 +350
±50
±100
0 〜 +200
0 〜 +350
±50
±100
0 〜 +200
0 〜 +350
±50
±100
0 〜 +200
0 〜 +350
±50(Q)
±100(R)
0 〜 +200(S)
0 〜 +350(T)
±50(Q)
±100(R)
0 〜 +200(S)
0 〜 +350(T)
0 〜 +420(T)
0 〜 +800(T)
75m≦R≦100m
43m≦R≦6 8m
33m≦R≦3 9m
18m≦R≦2 7m
10m≦R≦1 5m
56m≦R≦100m
47m≦R≦5 1m
ー
56m≦R≦100m
20m≦R≦5 1m
10m≦R≦1 8m
56m≦R≦100m
47m≦R≦5 1m
20m≦R≦4 3m
10m≦R≦1 8m
5m≦R≦9m
20m≦R≦4 3m
10m≦R≦1 8m
5m≦R≦9m
100 m≦R≦1
5m≦R≦91 m
1m≦R≦4m
100m≦R≦470m
10m≦R≦9 1m
100m≦R≦470m
10m≦R≦9 1m
5m≦R≦9m
1m≦R≦4m
ー
ー
ー
ー
3m≦R≦4m
ー
ー
ー
7m≦R≦9m
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
Resistance tolerance
Packaging
quantity:
T5(5,000pcs)
Nominal resistance value
Size: PRL0816, PRL1220, PRL1632, PRL3264
Series
code
RL3720WT-R10-F
Resistance
tolerance
Temperature coefficient of resistance
Nominal resistance value
Size: RL3720W, RL7520W
Series
code
T5
4,000pcs
Packaging
quantity
Low resistance chip resistors
(long-side terminal)
■PRL / RL series
・
・
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.
PC power sources, inverters, automotive electronics, adopters, industrial machines
Applications
Features
PRL0816
PRL1220
PRL1632
PRL3264
RL3720W
RL7520W
Type
0.80±0.20
1.25±0.20
1.60±0.20
3.20±0.20
2.00±0.20
2.00±0.20
0603
0805
1206
2512
1508
3008
Size
(inch) L
1.60±0.20
2.00±0.20
3.20±0.20
6.40±0.20
3.75±0.30
7.50±0.30
W
ー
ー
ー
ー
0.40±0.20
0.40±0.20
a
0.20±0.10
0.35±0.15
0.45±0.15
0.90±0.15
0.40＋0.20
0.40±0.20
0.40±0.10
0.50±0.10
0.50±0.10
0.50±0.10
0.50±0.20
0.50±0.20
b t
Temperature
coefficient
of resistance
59
PRL / RL series Current sensing surface mount resistors
Pulseduration(seconds) Pulseduration(seconds)
Ratioto
ratedpower(％)
Ratioto
ratedpower(％)
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.
Increaseofthesurface
temperature⊿T（℃）
0
0
20
40
60
80
100
120
160
180
200
220
5 10 15 20 25
RL3720W（Powerrating1Ｗ）
W（mm）
1Wapplied
0.75W
applied
0.5Wapplied
W
Chipresistors L
(27mm)
Landpattern
Landarea（S）＝Ｗ・Ｌ
Increaseofthesurface
temperature⊿T（℃）
0
0
20
40
60
80
100
120
160
180
200
220
5 10 15 20 25
RL7520W（Powerrating2Ｗ）
W（mm）
2Wapplied
1Wapplied
0.5Wapplied
W
Chipresistors
Landpattern
Landarea（S）＝Ｗ・Ｌ
L
(27mm)
Increaseofthesurface
temperature⊿T（℃）
0
0
50
100
150
200
250
300
10 20 30
RL3720W（Powerrating0.5Ｗ）
L（mm）
0.5Wapplied
0.25Wapplied
W
（4.15mm）
Chipresistors L
Landpattern
0
0
50
100
150
200
250
300
10 20 30
RL7520W（Powerrating1Ｗ）
Increaseofthesurface
temperature⊿T（℃）
L（mm）
1Wapplied
0.75Wapplied
0.5Wapplied
0.25Wapplied
W
（7.9mm）
Chipresistors
L
Landpattern
0.1
0
1
2
3
4
5
6
1 10 100
ESL(nH)
Frequency/MHz
group1：Distancebetweenthetwoelectrodes6.4ｍｍ（RL-3264）
group2：Distancebetweenthetwoelectrodes3.2ｍｍ（RL1632）
group3：Distancebetweenthetwoelectrodes1.6 〜 2.0ｍｍ（RL3720W）
group4：Distancebetweenthetwoelectrodes1.25ｍｍ（KRL2012）
Short
side
terminal
type
Long
side
terminal
type
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.
Test procedure
Pulseduration（seconds）
Maximumpulsepowerlimit（W）
200
150
50
100
0
0.001 0.01 0.1 1 10
RL7520W-R10
RL3264-R050
RL7520-R10
RL1632-R050
RL1220-R10
100
50
0
−55 0 70 125
RL3720W
100
50
0
−55 0 30 150125
RL7520W
◆Resistance to power pulse
◆ESL (Equivalent series inductance)
◆Surface temperature data
○
◆Derating Curve
The high power type land pattern and
surface temperature
60
PRL / RL series
Current sensing surface mount resistors