Model: A57-1954

Thyristor Semiconductor Device

Properties:

Inclosure Material
Metal
Overall Length
Between 0.330 inches and 0.505 inches
Mounting Facility Quantity
1
Joint Electronic Device Engineering Council/jedec/case Outline Designation
To-48
Mounting Method
Threaded stud
Features Provided
Hermetically sealed case
Overall Width Across Flats
Between 0.544 inches and 0.562 inches
Thread Size
0.250 inches
Semiconductor Material
Silicon
Voltage Rating In Volts Per Characteristic
1000.0 repetitive peak off-state voltage
Current Rating Per Characteristic
45.00 amperes forward current, total rms nanoamperes
Maximum Operating Tempurature Per Measurement Point
125.0 degrees celsius junction
Precious Material And Location
Terminal surfaces silver
Precious Material
Silver
Thread Series Designator
Unf
Terminal Type And Quantity
1 threaded stud and 2 tab, solder lug
NSN
5961-00-394-9923
Part Number
A57-1954
Description
Semiconductor Device,thyristor
CAGE
27192

A bistable semiconductor device comprising three or more junctions which is normally a nonconductor until the application of a signal to a gate terminal, at which time the device switches to the conductive state. Includes devices capable of being switched back to the nonconductive state upon application of a different signal to the same or another gate terminal. May or may not include mounting hardware and/or heatsink. For solid state devices which are responsive to visible or infrared radiant energy, see semiconductor device, photo.

Part A57-1954 NSN 5961-00-394-9923

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
33096
FIIG:
A110A0
Concept No.:
1
App. Key:
D
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:
S
ESD:
B
ESD:
B
MMAC:
EH
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:
063025
UFC:
34525
LTL:
RATING VARIABLE
LCL:
--
WCC:
72D
TCC:
3
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8541300080
  • SITC: 77635
  • End Use: Semiconductors
  • NAICS: 334413
  • USDA: 1

Freight Class: Thyristors, diacs & triacs, other than photosensitive devices, nesoi

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