303136-37R900-CBT datasheet, PDF

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303136-37R900-CBT: DescriptionFixed Resistor, Metal Foil, 0.2W, 37.9ohm, 57V, 0.25% +/-Tol, 0.2ppm/Cel, Surface Mount, 1506, CHIP; CategoryPassive components The resistor; File Size423KB，6 Pages; ManufacturerVishay; Websitehttp://www.vishay.com

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303136-37R900-CBT Overview

Fixed Resistor, Metal Foil, 0.2W, 37.9ohm, 57V, 0.25% +/-Tol, 0.2ppm/Cel, Surface Mount, 1506, CHIP

303136-37R900-CBT Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Vishay
package instruction	SMT, 1506
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	NON INDUCTIVE, ULTRA HIGH PRECISION, STANDARD: MIL-PRF-55182
structure	Rectangular
JESD-609 code	e0
Manufacturer's serial number	303136
Installation features	SURFACE MOUNT
Number of terminals	2
Maximum operating temperature	150 °C
Minimum operating temperature	-55 °C
Package height	0.64 mm
Package length	3.81 mm
Package shape	RECTANGULAR PACKAGE
Package form	SMT
Package width	1.57 mm
method of packing	TR
Rated power dissipation(P)	0.2 W
Rated temperature	70 °C
Guideline	MIL-PRF-55342
resistance	37.9 Ω
Resistor type	FIXED RESISTOR
series	303136
size code	1506
surface mount	YES
technology	METAL FOIL
Temperature Coefficient	.2 ppm/°C
Terminal surface	Tin/Lead (Sn/Pb)
Terminal shape	WRAPAROUND
Tolerance	0.25%
Operating Voltage	57 V

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303134, 303135, 303136, 303137, 303138

Vishay Foil Resistors

Models 303134 through to 303138 (Ultra High Precision Surface 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):

0.05 ppm/°C typical (0 °C to + 60 °C)

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



Tolerance: to ± 0.02 %



Power coefficient “R due to self heating”:

5 ppm at rated power



Power rating: to 400 mW at + 70 °C

Top View



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

power



Resistance range: 10 to 75 k



Vishay 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



Voltage coefficient < 0.1 ppm/V



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 3) 100 % tests performed, with no destructive

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

information, please contact

foil@vishaypg.com

INTRODUCTION

The 303134 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

303134 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 303134 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

()

250to 75K

100to < 250

50to < 100

25to < 50

10to < 25

TOLERANCE

(%)

± 0.02

± 0.05

± 0.1

± 0.25

± 0.5

MAXIMUM TCR

(ppm/°C)

±3

±4

±5

FIGURE 1 - POWER DERATING CURVE

Percent of Rated Power

- 55 °C

100

- 75

+ 70 °C

- 50

- 25

+ 25 + 50 + 75 + 100 + 125 + 150 + 175

Ambient Temperature (°C)

Document Number: 63169

Revision: 29-Mar-10

For any questions, contact:

foil@vishaypg.com

www.foilresistors.com

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