7.5 V regulation with tight ±2% tolerance
The 1N4737CE3/TR13 is a 7.5 V Zener diode in the standard 1N4737 family from Microchip Technology, housed in a DO-204AL (DO-41) axial-lead package. The ±2% tolerance on the nominal voltage means the regulation window is ±150 mV — tighter than the common ±5% grade, so it holds the reference rail closer for precision biasing or clamping circuits. Rated for 1 W continuous power dissipation, the part can sink steady-state current up to about 133 mA at 7.5 V before the junction temperature hits the derating limit.
Packaged in Tape & Reel (TR), it ships in volume quantities suited for automated pick-and-place or through-hole insertion lines. The DO-204AL (DO-41) axial footprint is a decades-old industry standard, so replacement sourcing from other manufacturers is straightforward if a second-source hedge is needed.