Skip to the content
PCBKitNew board
CJSMAJ51A on a board, in 3D

CJSMAJ51A

Jiangsu Changjing Electronics Technology (CJ)

Extended
Category
ESD And Surge Protection (TVS, ESD)
Package
SMAG
Pins
2

Overview

The CJSMAJ51A is an ESD And Surge Protection made by Jiangsu Changjing Electronics Technology (CJ) in a SMAG package with 2 pins.

PCBKit's library has its KiCad symbol (Device:D_TVS, from KiCad's library) and its footprint (EasyEDA_Cloud:SMAG_L4.3-W2.6-LS5.3-RD, from EasyEDA), ready for a KiCad board. 4,928 are in stock at JLCPCB (part C7499081).

Symbol

Device:D_TVSFrom KiCad's library

Footprint

12
EasyEDA_Cloud:SMAG_L4.3-W2.6-LS5.3-RDFrom EasyEDA

Parameters

10
Clamping Voltage
81.6V
Number of Channels
1
Operating Temperature
-55℃~+150℃
Peak Pulse Current (Ipp)
4.9A@10/1000us
Peak Pulse Power Dissipation (Ppp)
400W@10/1000us
Polarity
Unidirectional
Reverse Leakage Current (Ir)
5uA
Reverse Stand-Off Voltage (Vrwm)
51V
Type
TVS
Voltage - Breakdown
62.66V

Order codes

1

Pinout

2
The pins of the CJSMAJ51A
PinNameType
1A1Passive
2A2Passive

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/cj/CJSMAJ51A" title="CJSMAJ51A in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/cj/CJSMAJ51A.jpg" alt="CJSMAJ51A" width="1200" height="900">
A picture that opens the part, for a README
[![CJSMAJ51A](https://pcbkit.io/embed/parts/cj/CJSMAJ51A.jpg?size=s)](https://pcbkit.io/parts/cj/CJSMAJ51A)

Questions

Is there a KiCad symbol and footprint for the CJSMAJ51A?

Yes. The symbol is Device:D_TVS and the footprint EasyEDA_Cloud:SMAG_L4.3-W2.6-LS5.3-RD, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CJSMAJ51A?

SMAG, with 2 pins. Its footprint is drawn on this page.

Where is the CJSMAJ51A datasheet?

Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.

Where can I order the CJSMAJ51A?

JLCPCB lists it as part C7499081, with 4,928 in stock; the sellers' links on this page open their listings.

What can replace the CJSMAJ51A?

Parts like it in the library: the SMCJ51A by hongjiacheng, the SMF51CA by Shandong Jingdao Microelectronics, the SMBJ51CA by hongjiacheng and the SMCJ51CA by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8