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 ARRAY 28V SOT-363
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Configuration：2 Independent
- Voltage - Zener (Nom) (Vz)：28 V
- Tolerance：±5%
- Power - Max：200 mW
- Impedance (Max) (Zzt)：44 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 21 V
- Operating Temperature：-65°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-363
- Voltage - Forward (Vf) (Max) @ If：900 mV @ 10 mA
Download product information
Overview
The MMBZ5255BS-7-F is a dual isolated Zener diode manufactured by Diodes Incorporated, housed in an SOT-363 surface-mount package. It features a nominal Zener voltage of 28V with a tolerance range of 26.60V to 29.40V at a test current of 4.5mA. The device supports a maximum power dissipation of 200mW and exhibits a maximum Zener impedance of 44 Ohms at the test current. Maximum reverse leakage current is specified as 600µA at a reverse voltage of 21V. The component operates within a temperature range of -65°C to +150°C.
Feature Summary
- Dual isolated Zener configuration integrated into an ultra-small surface mount package for automated assembly processes.
- Planar die construction utilizing lead-free plating and RoHS compliant materials.
Applications
- Voltage reference circuits requiring dual independent regulation channels.
- Transient voltage suppression in compact electronic assemblies.
- Clamping applications in signal processing paths.
Procurement Notes
Verify the specific ordering suffix against official manufacturer documentation to confirm packaging quantity and tape-and-reel specifications. Ensure that the requested part number matches the exact electrical characteristics required for the design, particularly the Zener voltage tolerance and leakage current limits defined in the datasheet.
Selection Notes
Select this component when a dual-channel Zener solution is required in a minimal footprint. The SOT-363 package provides isolation between the two internal diodes, allowing for independent circuit connections. Consider the thermal resistance and power derating requirements if operating near the maximum junction temperature limit.
Part Context
This component belongs to the MMBZ5221BS through MMBZ5259BS series from Diodes Incorporated. The series offers various Zener voltage options ranging from 2.4V to 39V within the same physical package form factor, facilitating standardized inventory management for designs requiring different voltage references or clamping levels.
Replacement Considerations
Direct replacements must match the SOT-363 package dimensions and pinout. Verify that substitute parts meet the 200mW power dissipation rating and the specific 28V Zener voltage tolerance. Check for equivalent leakage current and impedance specifications to ensure circuit performance compatibility.
FAQ
What is the marking code for the MMBZ5255BS-7-F?
The product type marking code for this device is KK5.
How are the two Zener diodes configured internally?
The device contains two electrically isolated Zener diodes within a single SOT-363 package, allowing for independent operation.
What is the maximum reverse leakage current at 21V?
The maximum reverse leakage current is 600µA when measured at a reverse voltage of 21V.
