SMAJ6491

Features:

Zener voltages: 3.3 volts to 200 volts
Metallurgically bonded
Reliability data per JESD22-A108, JESD22-A104,JESD22-A113-B, JESD22-A101-B, and JESD22-A102
Thermally efficient surface mount with J-bends for stress relief (flat handling surface for easier placement)
Options for screening in accordance with MIL-PRF-19500/406 for JAN, JANTX, JANTXV, and JANS are available by adding MQ, MX, MV, or MSP prefixes respectively to part numbers. For example, designate a MXSMAJ4460 for a JANTX screen.


Application

For high reliability voltage regulation in low profile surface mount locations requiring easy placement and strain relief
Light weight for airborne or satellite applications
Superior surge quality to protect from ESD and EFT transients per IEC61000-4-2 and -4-4 and higher surge levels defined herein


Specifications

· Operating temperature: -55°C to +150°C
· Storage temperature: -55°C to +150°C
· 1.5 watt steady-state maximum power
· Thermal resistance, R_2JL = 15 °C/W


Description

This 1.5 watt zener series SMAJ6491 in a low-profile light-weight plastic surface mount configuration, with stress-relief J-bend contacts, meets or exceeds the electrical performance of the 1N4460 thru 1N4496 and 1N6485 thru 1N6491. SMAJ6491 also provides double the overall surge performance by using a larger active die element. This includes ESD protection per IEC61000-4-2, EFT protection per IEC61000-4-4, and higher surge levels defined herein. The low-flat profile provides easier insertion or automatic handling compared to other MELF style packages. Its thermally efficient design lowers junction temperatures and extends operating temperature range before derating begins. Power derates to zero at 150°C for these plastic packages.