Description of Part Number

P thyristor for circuit protection

Part Number

P

310

0

E

B

Code

①

②

③

④

⑤

Main

Suffix

Product type

P

TYPE

② MEDIAN VOLTAGE RATING

Code

Median voltage rating

310

310 V

③ CONSTRUCTION VARIABLE

Code

Product shape

0

One chip

1

Unidirectional part

2

Two chips

3

Three chips

④ PACKAGE TYPE

Code

PACKAGE TYPE

E

TO–92

M

DO-27

S

SMB/DO–214AA

R

SMA/DO-214AC

L

DO-15

⑤ IPP RATING

Code

IPP RATING

B

250 A (8x20 µs)

C

400 A (8x20 µs)

D

1000 A (8x20 µs)

A

150 A (8x20 µs)

Applications

When protecting telecommunication circuits, P devices are connected across Tip and Ring for metallic protection

and across Tip and Ground and Ring and Ground for longitudinal protection. They typically are placed behind some

type of current-limiting device. Common applications include:

• Central office line cards (SLICs)

• T-1/E-1, ISDN, and xDSL transmission equipment

• Customer Premises Equipment (CPE) such as phones, modems, and caller ID adjunct boxes

• PBXs, KSUs, and other switches

• Primary protection including main distribution frames, five-pin modules, building entrance equipment, and station

protection modules

• Data lines and security systems

• CATV line amplifiers and power inserters

• Sprinkler systems

Thyristor/T0-92 Series

REV.2014.05.01

01 | www.spsemi.cn