SMD code SMBJ54A
Marking codes are not standardised, and the same code is reused by unrelated makers for unrelated parts. Below is every part in our tables printed with it, and any printed with a code that is easy to misread as it, from the manufacturers' own marking tables and published code lists.
SMBJ54A is a part number in our tables
SMBJ54A
- What it is
- TVS diode
- Maker
- DOWO, Good-Ark, Hottech, JieJie, ProTek Devices, SOCAY, Taitron Components, Vishay, WeEn Semiconductors, HXY, YFW, Bourns, Diodes Incorporated, EIC Semiconductor, High diode Semiconductor, Leimao Electronic Technology, Lite-On Semiconductor, Lucky Forest, Rectron, Ruilong Yuan Electronics, Secos, Socay Electronics, StarHope, Starsea Electronic, SynSemi, Taiwan Semiconductor, Yint Electronics
- Package
- SMB
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead?
Diode range, from the protected line to ground, part lifted if you can.
Working, it reads
A one-way part reads about 0.6 to 0.8 V forward and open in reverse. A two-way part reads open both ways. Arrays with several lines read as the datasheet's diagram draws them.
Dead, it reads
- From the line to ground, the same reading both ways, near 0 V with a continuous beep: shorted.
- A reading both ways on a one-way part: leaky.
- A one-way part open both ways: failed open.
- On the board
- , a line reading shorted to ground can be this part or anything else on that line. Lift it: if the short goes with it, it has failed.
- Compare:
- The same part on the next line or connector pin is the healthy reading to compare with.
- Watch for:
- A two-way part reads open both ways when it is good, exactly like one that has failed open. The meter cannot tell them apart; an identical part on the next line can.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Codes printed on it
Each maker prints its own code, and each code has a page of its own.
- NEDOWO, SMB
- NEGood-Ark, SMBDatasheet for SMBJ54A, Good-Ark, opens in a new tab
- NEHottech, SMBDatasheet for SMBJ54A, Hottech, opens in a new tab
- NEJieJie, SMBDatasheet for SMBJ54A, JieJie, opens in a new tab
- NEProTek Devices, SMBDatasheet for SMBJ54A, ProTek Devices, opens in a new tab
- NESOCAYDatasheet for SMBJ54A, SOCAY, opens in a new tab
- NETaitron ComponentsDatasheet for SMBJ54A, Taitron Components, opens in a new tab
- NEVishay, SMBDatasheet for SMBJ54A, Vishay, opens in a new tab
- B054AJWeEn Semiconductors, SMBDatasheet for SMBJ54A, WeEn Semiconductors, opens in a new tab
- NEHXY, SMBDatasheet for SMBJ54A, HXY, opens in a new tab
- NEYFW, SMBDatasheet for SMBJ54A, YFW, opens in a new tab
- NEBourns, SMB
- NEDiodes Incorporated, SMB
- 6565EIC Semiconductor, SMB
- BREHigh diode Semiconductor, SMB
- NELeimao Electronic Technology, SMB
- NELite-On Semiconductor, SMB
- NELucky Forest, SMB
- TB54ARectron, SMB
- NERuilong Yuan Electronics, SMB
- BJ54ASecos, SMB
- NESocay Electronics, SMB
- NEStarHope, SMB
- NEStarsea Electronic, SMB
- 54ASynSemi, SMB
- NETaiwan Semiconductor, SMB
- NEYint Electronics, SMB
The only part printed SMBJ54A in our tables
TSMBJ54A
- What it is
- TVS diode
- Maker
- Galaxy Microelectronics
- Package
- SMB
- Pins
- 2
- Details
- 54V, 600W, Surface Mount TVS
- Source
- Manufacturer datasheet
Is it dead?
Diode range, from the protected line to ground, part lifted if you can.
Working, it reads
A one-way part reads about 0.6 to 0.8 V forward and open in reverse. A two-way part reads open both ways. Arrays with several lines read as the datasheet's diagram draws them.
Dead, it reads
- From the line to ground, the same reading both ways, near 0 V with a continuous beep: shorted.
- A reading both ways on a one-way part: leaky.
- A one-way part open both ways: failed open.
- On the board
- , a line reading shorted to ground can be this part or anything else on that line. Lift it: if the short goes with it, it has failed.
- Compare:
- The same part on the next line or connector pin is the healthy reading to compare with.
- Watch for:
- A two-way part reads open both ways when it is good, exactly like one that has failed open. The meter cannot tell them apart; an identical part on the next line can.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Was it this one?
Did you find your part?
Open this in the search to correct a character or try another package.