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 91V 500MW SQ-MELF
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Zener (Nom) (Vz)：91 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：270 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 69 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 1N6347US/TR is a surface-mount Zener voltage regulator diode housed in a B-SQ MELF package. It provides a nominal Zener voltage of 91 V with a standard tolerance of ±5%. The device operates at a test current of 1.4 mA and exhibits a dynamic impedance of 270 Ohms. Rated for a steady-state power dissipation of 0.5 W, it supports a maximum reverse current of 80 µA at 150 °C. The component functions within a junction temperature range of -65 °C to +175 °C.
Feature Summary
- Hermetically sealed voidless glass construction with internal metallurgical bonds
- Military qualification per MIL-PRF-19500/533 standards
- Inherently radiation hard design
- Non-sensitive to electrostatic discharge
Applications
- High-reliability military applications
- Voltage regulation over broad operating currents
- Radiation-hardened circuit protection
Procurement Notes
Verify the specific reliability level (JAN, JANTX, JANTXV, or JANS) required for the application, as the base part number covers multiple grades. Confirm RoHS compliance status if environmental regulations apply, noting that commercial versions may differ from qualified levels. Ensure the tape and reel packaging aligns with automated assembly requirements.
Selection Notes
Select this component when high-reliability surface-mount voltage regulation is necessary. The B-SQ MELF package offers a compact footprint suitable for space-constrained designs. Consider the positive temperature coefficient above 5.6 V and the specific dynamic impedance characteristics for precision regulation needs.
Part Context
This device belongs to the 1N6309US through 1N6355DUS series of 0.5 W Zener diodes. The series includes various voltage options ranging from 2.4 V to 200 V. The US suffix indicates the B-SQ MELL surface-mount package configuration.
Replacement Considerations
Direct replacements include other parts within the 1N6309US–1N6355US series from Microchip/Microsemi. Verify equivalent voltage ratings and tolerance levels when substituting.
