Model: 1N4957

Diode Semiconductor Device
Description:

Glass inclosure material, 0.140 inches overall length, 0.900 inches terminal length, 0.090 inches overall diameter, terminal mounting method.

Properties:

Inclosure Material
Glass and metal
Overall Length
Between 0.140 inches and 0.300 inches
Terminal Length
Between 0.900 inches and 1.500 inches
Overall Diameter
Between 0.090 inches and 0.145 inches
Mounting Method
Terminal
Features Provided
Hermetically sealed case
Semiconductor Material
Silicon
Voltage Rating In Volts Per Characteristic
9.6 breakdown voltage, dc
Current Rating Per Characteristic
520.00 milliamperes reverse surge current
Power Rating Per Characteristic
5.0 watts small-signal input power, common-collector preset
Maximum Operating Tempurature Per Measurement Point
175.0 degrees celsius ambient air
Test Data Document
81349-mil-s-19500 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Terminal Type And Quantity
2 uninsulated wire lead
Specification Data
81349-mil-s-19500/356 government specification
NSN
5961-00-009-4485
Part Number
1N4957
Description
Semiconductor Device,diode
CAGE
12969

A two electrode semiconductor device having an asymmetrical voltage - current characteristic. May or may not include mounting hardware and/or heatsink. Excludes light emitting diode and semiconductor device,photo. For items containing material such as selenium and copper oxide, see recifier, metallic.

Part 1N4957 NSN 5961-00-009-4485

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
20589
FIIG:
A110A0
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
063025
UFC:
34525
LTL:
RATING VARIABLE
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8541100070
  • SITC: 77631
  • End Use: Semiconductors
  • NAICS: 334413
  • USDA: 1

Freight Class: Diodes, other than photosensitve or led, with a maximum current of 0.5 a or less

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