303266-3K4400-QBT datasheet, PDF

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303266-3K4400-QBT: DescriptionFixed Resistor, Metal Foil, 0.4W, 3440ohm, 173V, 0.02% +/-Tol, -3,3ppm/Cel, 2512,; CategoryPassive components The resistor; File Size617KB，8 Pages; ManufacturerVishay; Websitehttp://www.vishay.com

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303266-3K4400-QBT Overview

Fixed Resistor, Metal Foil, 0.4W, 3440ohm, 173V, 0.02% +/-Tol, -3,3ppm/Cel, 2512,

303266-3K4400-QBT Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Objectid	286425991
Reach Compliance Code	compliant
Country Of Origin	Israel
ECCN code	EAR99
YTEOL	10
structure	Rectangular
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 shape	RECTANGULAR PACKAGE
Package form	SMT
Package width	3.23 mm
method of packing	TR
Rated power dissipation(P)	0.4 W
resistance	3440 Ω
Resistor type	FIXED RESISTOR
series	303266
size code	2512
technology	METAL FOIL
Temperature Coefficient	3 ppm/°C
Tolerance	0.02%
Operating Voltage	173 V

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303261, 303262, 303263, 303264, 303265, 303266

Vishay Foil Resistors

Ultra High-Precision Wrap-Around Chip Resistors,

UltraHigh-PrecisionWrap-AroundChipResistors,

FRSMZ-1FoilT

echnologyConfiguration

FRSM Z-1 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)(see table 1

and fig. 3):

±0.05 ppm/°C nominal (0°C to +60°C, +25°C ref)

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

• Resistance tolerance: to ±0.02%

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

rated power

• Power rating: to 400 mW at +70°C (see table 2)

•

Load life stability: ±0.02% after 2,000 hrs at 70°C at

rated power.

• Resistance range: 10 Ω to 75 kΩ (for higher and lower

values, please contact us)

• Vishay Foil resistors are not restricted to standard

values; specific “as required” values can be supplied at

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

• Thermal stabilization time: <1 s (within 10 ppm of steady

state value)

• Electrostatic discharge (ESD): at least to 25 kV

• Short time overload: ≤0.005%

• Rise time: 1 ns, effectively no ringing

• Current noise: <0.010 μV

RMS

/V of applied voltage

(<–40 dB)

• Voltage coefficient: <0.1 ppm/V

• Non-inductive: <0.08 μH

• Non-hot spot design

• Terminal finishes available: tin/lead alloy

• Matched sets are available on request

• Prototype quantities available in just 5 working days or

sooner. For more information, please contact us.

• For higher temperature application up to +240°C and for

better performances, please contact us.

• Adding “U” to the model number (example: 303261U).

These units have all of the Table 2A (page 5) 100% tests

performed, with no destructive qualification testing

required (Table 3A, page 6). For more information,

please contact

foil@vishaypg.com.

Top View

INTRODUCTION

The 303261 through 303266 series, tested per

EEE-INST-002 and MIL-PRF-55342, is based on the new

generation Z-1 technology of the Bulk Metal

precision foil

resistor elements by Vishay Precision Group (VPG), which

makes these resistors virtually insensitive to destabilizing

factors. Their element, based on the new Z-1 Foil, is a

solid alloy that displays the desirable bulk properties of

its parent material; thus, it is inherently stable (remarkably

improved load life stability of 25 ppm), noise-free and

withstands ESD to 25 kV or more. The alloy is matched

to the substrate and forms a single entity with balanced

temperature characteristics for an unusually low and

predictable TCR over a wide range from –55°C to +150°C.

Resistance patterns are photo-etched to permit trimming

of resistance values to very tight tolerances.

The 303261 through 303266 series has a full wraparound

termination which ensures reliable handling during the

manufacturing process, as well as providing stability

during multiple thermal cycles.

Our application engineering department is available to

advise and make recommendations. For non-standard

technical requirements and special applications, please

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