ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：DIODE ZENER 180V 500MW SQ-MELF
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：180 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：1500 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 137 V
- Operating Temperature：-65°C ~ 175°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SQ-MELF, B
- Voltage - Forward (Vf) (Max) @ If：1.4 V @ 1 A
- Grade：-
- Qualification：-
Download product information
Overview
The Microchip Technology 1N6354US/TR is a military-qualified Zener voltage regulator diode designed for high-reliability applications. It features a voidless hermetically sealed glass MELF package with an internal metallurgical bond. The device provides a nominal Zener voltage of 180V at a test current of 0.68mA, with a maximum dynamic impedance of 1500 Ohms and a maximum reverse leakage current of 10µA at 25°C. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 0.5W.
Feature Summary
- Hermetically sealed voidless hard glass construction with tungsten slugs
- Internal metallurgical bonds ensuring robust physical integrity
- Qualified per MIL-PRF-19500/533 for JAN, JANTX, JANTXV, and JANS reliability levels
- Inherently radiation hard and non-sensitive to electrostatic discharge
Applications
- High-reliability aerospace systems
- Military electronic circuits
- Harsh environment power regulation
- Radiation-hardened circuit protection
Procurement Notes
Verify the specific reliability level (JAN, JANTX, JANTXV, or JANS) required for your application, as this affects qualification standards. Confirm RoHS compliance status if applicable, noting that commercial versions may differ from military grades. Ensure the tape and reel packaging meets EIA-481-B standards for automated assembly processes.
Selection Notes
Select this component when a 180V breakdown voltage is needed in a surface-mount form factor. Consider the 1500 Ohm dynamic impedance for noise-sensitive designs. Evaluate thermal derating curves based on the end-cap temperature limits for continuous operation. Verify that the 0.5W power dissipation rating aligns with the expected load conditions.
Part Context
This part belongs to the 1N6309US through 1N6355DUS series of 0.5-watt Zener diodes. It serves as the surface-mount equivalent to the axial-leaded JEDEC registered 1N6309 series. The US suffix indicates the MELF package style, while the TR suffix denotes tape and reel packaging for manufacturing efficiency.
Replacement Considerations
Direct replacements must match the 180V Zener voltage and 0.5W power rating. Equivalent parts include other manufacturers' MIL-PRF-19500/533 qualified 1N6354 variants. Ensure the replacement maintains the same voidless glass package and metallurgical bond specifications for environmental resilience.
