Datasheet BZX38450 (Nexperia) - 3

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Nexperia BZX38450 series Low-current voltage regulator diodes 8. Limiting values Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
IF forward current - 250 mA PZSM non-repetitive peak reverse power tp = 100 µs; square wave; - 40 W dissipation Tj = 25 °C; prior to surge Ptot total power dissipation Tamb ≤ 25 °C [1] - 300 mW Tj junction temperature - 150 °C Tamb ambient temperature −55 +150 °C Tstg storage temperature −65 +150 °C [1] Device mounted on an FR4 Printed-Circuit Board (PCB), single sided copper, tin-plated and standard footprint.
9. Thermal characteristics Table 6. Thermal characteristics Symbol Parameter Conditions Min Typ Max Unit
Rth(j-a) thermal resistance from junction in free air [1] - - 415 K/W to ambient Rth(j-sp) thermal resistance from junction [2] - - 110 K/W to solder point [1] Device mounted on an FR4 Printed-Circuit Board (PCB), single sided copper, tin-plated and standard footprint. [2] Soldering point of cathode tab BZX38450_SER All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. Al rights reserved
Product data sheet Rev. 2 — 25 August 2021 3 / 11
Document Outline 1. General description 2. Features and benefits 3. Applications 4. Quick reference data 5. Pinning information 6. Ordering information 7. Marking 8. Limiting values 9. Thermal characteristics 10. Characteristics 11. Package outline 12. Soldering 13. Revision history 14. Legal information Contents