1N5276A(DO35) Microchip Diode (Diodes, Axial Diameter Horizontal Mounting) In Stock
Microchip 1N5276A is a 100 V, 500 mW Zener diode in a DO-35 axial leaded package used for voltage regulation and reference applications. It provides a tight Zener breakdown voltage tolerance with low dynamic impedance, suitable for precision voltage clamping in analog circuits.
- Manufacturer
- Microchip
- Package
- Diodes, Axial Diameter Horizontal Mounting
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- 1N5276A(DO35) Datasheet PDF
- Category
- Diode
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 100 V Zener breakdown voltage in a compact DO-35 axial package rated at 500 mW for precise voltage clamping and regulation
- Low dynamic impedance ensuring stable Zener voltage across varying load currents for accurate reference and protection circuit design
- Axial DO-35 through-hole package providing easy hand-soldering and compatibility with standard radial PCB layouts and test fixtures
Applications
The 1N5276A is used in analog voltage reference networks, overvoltage protection clamps, and signal limiter circuits where a 100 V Zener breakdown voltage and 500 mW power rating are required in a DO-35 through-hole axial package. It is also commonly employed in industrial power supply crowbar circuits and biasing networks where tight breakdown voltage tolerance and low leakage ensure reliable voltage regulation.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the key electrical ratings of the 1N5276A Zener diode for voltage clamping circuit design?
The 1N5276A is a Zener diode with a 100 V breakdown voltage and a 500 mW power dissipation rating in the DO-35 axial package. These parameters make it suitable for clamping high-voltage transients in signal conditioning circuits, analog references, and overvoltage protection networks operating below 100 V DC.
How does the DO-35 axial package of the 1N5276A affect its use in through-hole PCB designs?
The DO-35 axial package has a body diameter of approximately 1.9 mm with standard lead spacing, enabling easy horizontal or vertical through-hole mounting on PCBs. This package is compatible with automated axial insertion equipment and supports hand soldering for low-volume prototyping, providing flexibility for both production-scale and engineering-sample PCB assembly at 100 V operation.
When is the 1N5276A preferred over a transient voltage suppressor (TVS) for overvoltage protection?
The 1N5276A is preferred when a precise 100 V Zener reference voltage with 500 mW continuous dissipation is needed for steady-state voltage clamping rather than transient spike suppression. TVS diodes are optimized for brief high-energy pulses, while the 1N5276A provides a stable, low-impedance 100 V clamp for analog biasing, linear regulation, and moderate continuous overvoltage protection scenarios.
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