SMBJ190A is a TVS diode marked PA on the silk screen, located on the L7 hash board, and its VRWM voltage is 190V.

Product parameter:

Product Type: TVS Diodes

Polarity: Unidirectional

Working Voltage: 190 V

Number of Channels: 1 Channel

Termination Style: SMD/SMT

Package / Case: DO-214AA-2

Breakdown Voltage: 232 V

Clamping Voltage: 307.8 V

Pppm - Peak Pulse Power Dissipation: 600 W

Ipp - Peak Pulse Current:  1.9 A

Minimum Operating Temperature:   - 55 ℃

Maximum Operating Temperature: + 150 ℃