303138-1K24-A-B-T datasheet, PDF

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303138-1K24-A-B-T: DescriptionFixed Resistor, Metal Foil, 0.4W, 1240ohm, 173V, 0.05% +/-Tol, -.2,.2ppm/Cel, 2512,; CategoryPassive components The resistor; File Size442KB，6 Pages; ManufacturerVishay; Websitehttp://www.vishay.com

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303138-1K24-A-B-T Overview

Fixed Resistor, Metal Foil, 0.4W, 1240ohm, 173V, 0.05% +/-Tol, -.2,.2ppm/Cel, 2512,

303138-1K24-A-B-T Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Objectid	848807159
Reach Compliance Code	compliant
ECCN code	EAR99
structure	Chip
Number of terminals	2
Maximum operating temperature	150 °C
Minimum operating temperature	-55 °C
Package height	0.64 mm
Package length	6.32 mm
Package form	SMT
Package width	3.23 mm
method of packing	TR
Rated power dissipation(P)	0.4 W
Guideline	MIL-PRF-55342
resistance	1240 Ω
Resistor type	FIXED RESISTOR
series	303138
size code	2512
technology	METAL FOIL
Temperature Coefficient	-.2,.2 ppm/°C
Tolerance	0.05%
Operating Voltage	173 V

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303133, 303134, 303135, 303136, 303137, 303138

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es0 1 3 u h 0 1 ( ta i hP i i S ra e o n hp e i t r V M ZF T c n gC ni ua

Mount Chip Resistors, VSMP Z-Foil Technology Configuration)

Screen/Test Flow in Compliance with EEE-INST-002,

(Tables 2A and 3A, Film/Foil, Level 1) and MIL-PRF-55342

FEATURES

• Temperature coefficient of resistance (TCR):

0.2 ppm/°C typical (–55°C to +125°C, +25°C ref.)

• Tolerance: to ±0.01%

• Power coefficient “∆R due to self heating”: 5 ppm at

rated power

• Power rating: to 400 mW at +70°C

• Load-life stability: to ±0.03% at 70°C, 2000 h at rated

power

• Resistance range: 10 Ω to 75 kΩ

• Bulk Metal

Foil resistors are not restricted to standard

values, we can supply specific “as required” values at

no extra cost or delivery (e.g. 1K2345 vs. 1K)

• Fast thermal stabilization <1 s

•

Electrostatic discharge (ESD) up to 25 000 V

• Short-time overload: ≤0.02%

• Non-inductive, non-capacitive design

• Rise time: 1 ns effectively no ringing

• Current noise: –42 dB

• Non-inductive: <0.08 μH

• Non-hot-spot design

• Terminal finish: tin/lead alloy

• Matched sets are available on request

• For prototype units, append a “U” to the model number

(example: 303134U). These units have all of the table

2A (page 4) 100% tests performed, with no destructive

qualification testing required (table 3A, page 4). For

more information, please contact

foil@vpgsensors.com

Top View

INTRODUCTION

The 303133 through to 303138 series is the first surface

mount device to provide high rated power, excellent

load-life stability along with extremely low TCR all in one

resistor.

One of the most important parameters influencing

stability is the temperature coefficient of resistance (TCR).

Although the TCR of foil resistors is considered extremely

low, this characteristic has been further refined over the

years. The 303133 through to 303138 series utilizes ultra

high-precision Bulk Metal

Z-Foil. The Z-Foil technology

provides a significant reduction of the resistive element’s

sensitivity to ambient temperature variations (TCR) and

to self-heating when power is applied (power coefficient).

Along with the inherently low PCR and TCR, Z-Foil

technology also provides remarkably improved load-life

stability, low noise and availability of tight tolerance.

The 303133 through to 303138 series has a full

wraparound termination which ensures safe handling

during the manufacturing process, as well as providing

stability during multiple thermal cyclings.

Our application engineering department is available to

advise and make recommendations.

Table 1 – Tolerance and TCR vs. Resistance

Value

(–55°C to +125°C, +25°C ref.)

RESISTANCE

VALUE

(Ω)

250 to 75K

100 to <250

50 to <100

25 to <50

10 to <25

TOLERANCE

(%)

±0.01

±0.05

±0.1

±0.25

±0.5

MAXIMUM TCR

(ppm/°C)

±3

±4

±5

Figure 1 – Power Derating Curve

Percent of Rated Power

100

–75

–55°C

+70°C

–50

–25

Ambient Temperature (°C)

+25

+50

+75 +100 +125 +150 +175

4188-EN

Rev 01-Oct-2020

For any questions, contact

foil@vpgsensors.com

www.vishayfoilresistors.com

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