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Product Detailed Parameters
- Description：DIODE ZENER 12V 5W AXIAL
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Zener (Nom) (Vz)：12 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：2.5 Ohms
- Current - Reverse Leakage @ Vr：2 µA @ 9.1 V
- Operating Temperature：-65°C ~ 200°C
- Mounting Type：Through Hole
- Package / Case：T-18, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
- Grade：-
- Qualification：-
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Overview
The onsemi 1N5349BRLG is a single-channel Zener voltage regulator diode from the 1N53 Series, housed in an axial lead DO-15 (Surmetic 40) package. It features a nominal Zener voltage of 12 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 and includes silicon-oxide passivated junctions for superior environmental protection.
Feature Summary
- Utilizes silicon-oxide passivated junctions for enhanced reliability and operating characteristics
- Features void-free, transfer-molded thermosetting plastic packaging for corrosion resistance
- Provides high surge current capability up to 180 W at 8.3 ms pulse width
- Guarantees tight limits on multiple electrical parameters including impedance and leakage
Applications
- Voltage regulation in general-purpose electronic circuits
- Overvoltage protection for sensitive components
- Reference voltage sources in power supply designs
Procurement Notes
Verify the specific ordering suffix 'RLG' confirms tape and reel packaging containing 4000 units per reel. Confirm RoHS compliance status as indicated by the 'G' suffix. Ensure the procurement documentation matches the exact part number 1N5349BRLG to guarantee correct voltage rating and package type.
Selection Notes
Select this component when a 12 V reference with 5 W power handling is required. The axial lead configuration suits through-hole mounting. Consider the thermal resistance and derating requirements above 25°C for continuous operation. Verify that the ±5% tolerance meets the circuit's precision requirements.
Part Context
This device belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators. The series offers a wide Zener voltage range from 3.3 V to 200 V. All devices share common mechanical characteristics and are designed for robust performance in various environmental conditions using axial lead packages.
Replacement Considerations
Direct substitutes include other manufacturers' 1N5349B variants or equivalent 12 V 5 W Zener diodes in DO-15 packages. Verify pinout polarity and thermal characteristics match before substitution.
