Model: PH25-4R990H

Nonind Wire Wound Fixed Resistor

Properties:

Tempurature Coefficient Of Resistance In Ppm Per Deg Celsius
-50.0/+50.0
Electrical Resistance
4.990 ohms
Resistance Tolerance In Percent
-3.000/+3.000
Ambient Tempurature In Deg Celsius At Full Rated Power
25.0
Ambient Tempurature In Deg Celsius At Zero Percent Rated Power
275.0
Tempurature Range Of Tempurature Coefficient In Deg Celsius
-55.0/+275.0
Inclosure Method
Encased
Terminal Type
Tab, solder lug
Reliability Indicator
Not established
Terminal Length
Between 0.313 inches and 0.437 inches
Body Diameter
Between 0.844 inches and 0.906 inches
Mounting Bushing Length
0.783 inches
Body Length
Between 0.781 inches and 0.843 inches
Power Dissipation Rating In Watts
25.000 free air
Terminal Width
0.140 inches
Mounting Bushing Diameter
0.625 inches
Cubic Measure (non-core)
0.488 cubic inches
Unpackaged Unit Weight
22.0 grams
Style Designator
Axial terminals one end
NSN
5905-01-145-9829
Part Number
PH25-4R990H
Description
Resistor,fixed,wire Wound,nonind
CAGE
91637

Inc 37404 reinstated on 010303~a resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of high resistance wire (or ribbon) either wound on an insulated form or constructed so as to be self-supporting. The items must have inherent characteristics of inducing little or no self-inductance. Opposition to current flow is an inherent property of the resistance wire and is manifested by the heat dissipation in the resistor. Excludes suppressor, ignition interference. See also resistor (1), fixed, wire wound, inductive.

Part PH25-4R990H NSN 5905-01-145-9829

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37404
FIIG:
A001A0
Concept No.:
1
App. Key:
B
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062960
UFC:
35140
LTL:
77.5
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8533390080
  • SITC: 77233
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Wirewound variable resistors, nesoi

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