-55

-40

-20

0

20

40

60 70 80

100

120

140 155

100

80

60

40

20

0

Ambient Temperature (°C)

For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with this curve.

Power Derating Curve

Characteristics - Environmental

Requirement

Test Method

Tol. ≤ 0.05%

Tol. > 0.05%

Temperature Coefficient

As per TCRs specified in value range table on page 1

+25/-55/+25/+125/+25°C

of Resistance (TCR):

Short Time Overload:

ΔR ±0.05%

ΔR ±0.2%

RCWV* 2.5 or max. overload

ΔR ±0.2% for high power rating

voltage for 5 seconds

Insulation Resistance:

>1000MΩ

Apply 100VDC for 1 minute

ΔR ±0.05%

ΔR ±0.2%

70 ±2°C, max. working voltage

Endurance:

>7kΩ ΔR ±0.5%

for 1000hrs with 1.5hrs

ΔR ±0.5% for high power rating

“ON” and 0.5hrs “OFF”

Damp Heat with Load:

ΔR ±0.05%

ΔR ±0.3%

40 ±2°C, 90 - 95% R.H. max. working voltage

ΔR ±0.5% for high power rating

hrs with 1.5hrs “ON” and 0.5hrs “OFF”

Bending Strength:

ΔR ±0.05%

ΔR ±0.2%

Bending amplitude 3mm for 10 seconds

Solderability:

95% min. coverage

245 ±5°C for 3 seconds

Resistance to Soldering Heat:

ΔR ±0.05%

ΔR ±0.2%

260 ±5°C for 10 seconds

Dielectric Withstand Voltage:

By type

Max. overload voltage for 1 minute

Thermal Shock:

ΔR ±0.05%

ΔR ±0.25%

-55°C to +150°C, 100 cycles

Low Temperature Operation:

ΔR ±0.05%

ΔR ±0.2%

1 hour, -65°C, followed by 45 minutes of RCWV

ΔR ±0.5% for high power rating

Reference Standards: MIL-STD-202, JIS-C 5201-1

Storage Temperature: 25±3°C; Humidity < 80%RH

2512

Rated Power @ 70°C:

0.5W

Resistance Range (Ohms) Min:

24R9 24R9 24R9 4R7 24R9 4R7

Max: 100K 500K 100K 1M0 100K 1M0

Tolerance (%):

0.01

0.05

0.1

Code Letter:

LA

B

Selection Series:

E24 & E96

Temp. Coefficient (ppm/°C):

510

5

10

5

10

Code Letter:

AC

A

C

A

C

Limiting Element Voltage:

150V

Max. Overload Voltage:

300V

Operating Temp. Range:

-55 to +155°C

Climatic Category (°C):

55/125/55

Insulation Resistance Dry Min:

1000MΩ

Stability:

0.5%

SMD High Power Precision Resistors

Type RN73 Series

1773270 CIS BI 06/2011

Dimensions are in millimeters

Dimensions are shown for

For email, phone or live chat, go to: te.com/help

and inches unless otherwise

reference purposes only.

specified. Values in brackets

Specifications subject

are standard equivalents.

to change.