Pulse duration (seconds)

Pulse duration (seconds)

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.

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

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)

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）

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

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）

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

150

125

RL7520W

◆

Resistance to power pulse

◆

ESL (Equivalent series inductance)

◆

Surface temperature data

○

◆

Derating Curve

The high power type land pattern and

surface temperature

58

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/℃)

±0.5% (D)

±1% (F)

±2% (G)

±5% (J)

Type

Maximum

voltage

Power

ratings

1/3W

2/3W

1W

2W

1W

2W

±50(Q)

±100(R)

0 ∼ +200(S)

0 ∼ +350(T)

±50(Q)

±100(R)

0 ∼ +200(S)

0 ∼ +350(T)

±50(Q)

±100(R)

0 ∼ +200(S)

0 ∼ +350(T)

±50(Q)

±100(R)

0 ∼ +200(S)

0 ∼ +350(T)

±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≦68m

33m≦R≦39m

18m≦R≦27m

10m≦R≦15m

56m≦R≦100m

47m≦R≦51m

ー

56m≦R≦100m

20m≦R≦51m

10m≦R≦18m

56m≦R≦100m

47m≦R≦51m

20m≦R≦43m

10m≦R≦18m

5m≦R≦9m

20m≦R≦43m

10m≦R≦18m

5m≦R≦9m

100m≦R≦1

5m≦R≦91m

1m≦R≦4m

100m≦R≦470m

10m≦R≦91m

100m≦R≦470m

10m≦R≦91m

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

57