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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 33V SOT-363
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Configuration：2 Independent
- Voltage - Zener (Nom) (Vz)：33 V
- Tolerance：±5%
- Power - Max：200 mW
- Impedance (Max) (Zzt)：58 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 25 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
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Overview
The MMBZ5257BS-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 33 V with a tolerance range of 31.35 V to 34.65 V at a test current of 3.8 mA. The device supports a maximum power dissipation of 200 mW and exhibits a maximum Zener impedance of 58 Ω at the test current. Electrical characteristics include a maximum reverse leakage current of 0.1 μA at 25 V and a forward voltage of 0.9 V at 10 mA. The component operates within a temperature range of -65°C to +150°C.
Feature Summary
- Dual isolated Zener diodes integrated into a single ultra-small surface mount package
- Planar die construction designed for automated assembly processes
- Lead-free and RoHS compliant manufacturing
Applications
- Voltage regulation circuits requiring compact dual-channel solutions
- Signal clamping applications in space-constrained designs
- Protection circuits utilizing dual independent reference voltages
Procurement Notes
Verify the specific ordering suffix against official manufacturer documentation to confirm packaging configuration. Confirm that the requested part number matches the exact electrical specifications required for the design. Ensure compliance with environmental directives such as RoHS if applicable to the target market. Cross-reference the date code marking system to determine manufacturing age if required by quality standards.
Selection Notes
Select this component when two independent Zener references are needed in a minimal footprint. The SOT-363 package offers significant space savings compared to discrete components. Verify that the 200 mW power dissipation rating meets the thermal requirements of the application. Consider the 58 Ω impedance value for high-frequency or precision regulation needs.
Part Context
This component belongs to the MMBZ5221BS through MMBZ5259BS series from Diodes Incorporated. The series provides various Zener voltage options within the same physical package format. The MMBZ5257BS variant specifically targets the 33 V nominal breakdown voltage requirement within this family.
Replacement Considerations
Substitute parts must match the SOT-363 package dimensions and pinout. Verify equivalent Zener voltage tolerances and power dissipation ratings. Check for compatible thermal resistance values to ensure reliable operation under similar conditions.
