Device Overview
Nexperia BZA420A,115 is a quadruple common-anode ESD transient-voltage suppressor for protecting four lines. The 20 V figure belongs to the non-clamping operating range; it should not be confused with the specified 28 V clamping voltage at 0.7 A.
Selection-Critical Data
| Parameter | Confirmed Data | Engineering Relevance |
|---|---|---|
| Protected lines | 4, common-anode arrangement | Must match the number and topology of protected circuit lines. |
| Non-clamping range | -0.5 to 20 V | Defines the signal-voltage range in which the device should remain non-clamping. |
| ESD rating | >8 kV to the stated IEC 1000-4-2 condition | Indicates the published ESD withstand level under that standard condition. |
| Maximum reverse peak power | 19.6 W at tp = 1 ms | Indicates transient power capability for the specified pulse duration. |
| Clamping voltage | 28 V at Izsm = 0.7 A | Defines the residual clamp voltage at the stated surge current. |
| Package | SOT-457 | Defines footprint and pin arrangement. |
