SMAJ28A-TR屬于電路保護的TVS-二極管。由意法半導體集團制造生產的SMAJ28A-TRTVS - 二極管TVS 二極管是一種半導體器件，可用于限制或阻止特定電壓電平的浪涌。該系列產品使用二極管（只能單向導電的元器件）進行設計。TVS 是 Transient Voltage Suppression/Suppressor（瞬態(tài)電壓抑制/抑制器）的首字母縮寫。類型包括轉向（軌至軌）或齊納，具有單向通道、雙向通道、電壓 – 反關態(tài)、電壓 – 擊穿、電壓 – 箝位、電流 – 峰值脈沖、功率 – 峰值脈沖和電源線路保護等特征。

特性 Features

■ Peak pulse power:

– 400 W (10/1000 μs)

– 2.3 kW (8/20 μs)

■ Stand off voltage range: from 5 V to 188 V

■ Unidirectional and bidirectional types

■ Low leakage current:

– 0.2 μA at 25 °C

– 1 μA at 85 °C

■ Operating Tj max: 150 °C

■ High power capability at Tj max:

– 270 W (10/1000 μs)

■ JEDEC registered package outline

Complies with the following standards

■ IEC 61000-4-2 level 4

– 15 kV (air discharge)

– 8 kV (contact discharge)

■ IEC 61000-4-5 (see Table 3 for surge level)

■ MIL STD 883G, method 3015-7 Class 3B

– 25 kV HBM (human body model)

■ Resin meets UL 94, V0

■ MIL-STD-750, method 2026 solderability

■ EIA STD RS-481 and IEC 60286-3 packing

■ IPC 7531 footprint

描述 Description

The SMAJ Transil series has been designed to

protect sensitive equipment against electrostatic

discharges according to IEC 61000-4-2, and

MIL STD 883, method 3015, and electrical over

stress according to IEC 61000-4-4 and 5. These

devices are generally used against surges below

400 W (10/1000 μs).

Planar technology makes these devices suitable

for high-end equipment and SMPS where low

leakage current and high junction temperature are

required to provide reliability and stability over

time.

SMAJ are packaged in SMA (SMA footprint in

accordance with IPC 7531 standard).