S4S2RP View Datasheet(PDF) - Littelfuse, Inc

Part Name

Description

Manufacturer

S4S2RP

Teccor® brand Thyristors 0.8 Amp Sensitive SCRs

Littelfuse, Inc 

Teccor® brand Thyristors

0.8 Amp Sensitive SCRs

Figure 12: Surge Peak On-State Current vs. Number of Cycles

100.0

10.0

1.0

4611-:
'3&26&/$:

)[
4JOVTPJEBM

LOAD: Resistive

RMS On-State Current: [I ]: Maximum Rated

T(RMS)

7BMVF
BU
4QFDJmFE
$BTF
5FNQFSBUVSF

Notes:


(
BUF
DPOUSPM
NBZ
CF
MPTU
EVSJOH
BOE
JNNFEJBUFMZ

following surge current interval.

2. Overload may not be repeated until junction

temperature has returned to steady-state

rated value.

0.1

1

10

100

1000

Surge Current Duration -- Full Cycles

Figure 13: Simple Test Circuit for Gate Trigger Voltage and Current

Reset

Normally-closed

Pushbutton

/PUF

7

‰

7
UP

7
ED
NFUFS

7(5
‰

7
UP

7
ED
NFUFS

I(
‰

N"
UP


N"
ED
NJMMJBNNFUFS

3
‰

L
QPUFOUJPNFUFS

+

6VDC

–

100

To measure gate trigger voltage and current, raise gate

WPMUBHF
7(5
VOUJM
NFUFS
SFBEJOH
7
ESPQT
GSPN

7
UP

7

D.U.T.

V1

(BUF
USJHHFS
WPMUBHF
JT
UIF
SFBEJOH
PO
7(5
KVTU
QSJPS
UP
7

IGT

IG

IN4001

100

R1

ESPQQJOH
(BUF
USJHHFS

DVSSFOU
*(5 Can be computed from

the relationship

1k

(1%)

VGT

I = I - _7_(_5_ Amps

(5 ( 1000

where I(
JT
SFBEJOH
JO
BNQFSFT
PO
NFUFS
KVTU
QSJPS
UP
7

dropping

Note: I may turn out to be a negative quantity (trigger

(5

current flows out from gate lead). If negative current

occurs, I value is not a valid reading. Remove 1 k resistor

(5

and use I as the more correct I value. This will occur on

(

(5

12 μA gate products.

©2010 Littelfuse, Inc

Specifications are subject to change without notice.

167

Revised: March 31, 2010 03:44 PM

EC103xx & SxSx Series

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