1N5348BRL

Overview

The onsemi 1N5348BRL is a single-channel Zener voltage regulator diode from the 1N53 Series, housed in an axial lead DO-15 (Surmetic 40) plastic package. It features a nominal Zener voltage of 11 V with a ±5% tolerance and a maximum steady-state power dissipation of 5 W at 25°C. The device operates within a temperature range of -65°C to +200°C. Key electrical parameters include a test current of 125 mA, a maximum Zener impedance of 2.5 Ω, and a maximum reverse leakage current of 5 μA.

Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics and tight parameter limits.
• Features robust surge handling capabilities with ratings up to 180 W for 8.3 ms pulses.
• Includes high ESD protection rated at Class 3 (>16 kV) per the Human Body Model.
• Constructed with void-free, transfer-molded thermosetting plastic for environmental resistance.

Applications

• Voltage regulation in general-purpose electronic circuits
• Overvoltage protection for sensitive components
• Reference voltage generation in power supplies

Procurement Notes

Verify that the ordering suffix 'RL' corresponds to the tape and reel packaging configuration containing 4000 units per reel. Confirm the presence of the 'G' suffix if lead-free compliance is required. Ensure the component matches the Surmetic 40 case outline dimensions and polarity band marking specifications provided in the datasheet.

Selection Notes

Select this component when a stable 11 V reference is needed with a 5 W power rating. Consider the specific test current of 125 mA and the resulting impedance characteristics for circuit stability. Evaluate thermal management requirements given the 25°C/W junction-to-lead thermal resistance and the derating curve above 25°C ambient temperature.

Part Context

This part belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators. The series covers a wide voltage range from 3.3 V to 200 V, all sharing the same mechanical package and general performance profile. The 'B' designation indicates a ±5% tolerance, while the 'RL' suffix specifies the reel packaging format for automated assembly.

Replacement Considerations

Compatible substitutes within the same family include the 1N5348B (box packaging) or other 1N53xxB devices with similar voltage ratings. Cross-manufacturer equivalents must match the 11 V nominal voltage, 5 W power dissipation, and DO-15 axial lead package constraints.