Shindengen Launched D35XB80 Rated Current 35A Bridge Diode with Improved Heat Dissipation Performance

时间： 2023-07-29 来源：Shindengen News

技术问答

The D35XB80 has the same appearance as the standard 5S package of insulated SIP single-phase bridge diodes but achieves a new maximum rated current of 35 A.

A new "5S GEN2" structure is used in order to improve heat dissipation performance. A renovation of the internal structures has achieved terminal temperatures of 100℃ or lower (*1) even when average forward current I_F (AV) = 35 A, while also maintaining a surge forward current I_FSM of 550 A.

The increased current capacity makes this bridge diode suitable for high-performance, large-scale air conditioners and other applications which require high-power operation.

We plan to continue to develop and release more next-generation bridge diodes using "5S GEN2" going forward.

*1: With 25℃ water-cooled heat dissipation fins attached

Figure 1：Terminal temperature measurement results

*Average forward current I_F (AV) = 35 A (actual measured value)

2. Features

Insulated SIP single-phase bridge diodes
Average forward current I_F (AV) = 35A (Tc = 93℃)
Repetitive peak reverse voltage V_RRM = 800V
Surge forward current I_FSM = 550A (50 Hz), 603A (60 Hz)
Reverse recovery time trr = 27μs (max.)
Thermal resistance Rth (j - c) = 0.8℃/W (max.)
Isolation voltage Vdis = 2.5kV (UL1557 certified)

3. External Dimensions Diagram (units: mm) and Equivalent Circuit Diagram

Figure 2：External dimensions diagram（5S package）

Figure 3：Equivalent circuit diagram

4. Factory Location

Lumphun SHINDENGEN Co., Ltd. (Thailand) etc.

5. Availability

Available

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