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75PT12BI

Product catalog summary

Main Features:
The 75PT series of silicon controlled rectifiers (SCRs) are designed for high performance with glass passivated technology. They are suitable for general-purpose applications where power handling and dissipation are critical, such as solid-state relays and welding equipment. The series offers superior performance in surge current capabilities and high voltage insulation due to an internal ceramic pad.

Specifications:

RMS on-state current (IT(RMS)): 75A
Repetitive peak off-state voltage (VDRM) and reverse voltage (VRRM): 1200 to 1600V
Non-repetitive surge peak on-state current (ITSM): 860A
Storage temperature range: -40 to +150°C
Operating junction temperature range: -40 to +125°C

Electrical Specifications:

Gate trigger current (IGT): Max 50mA
Holding current (IH): Max 500mA
Critical rate of rise of on-state current (dI/dt): 150 A/µs

Thermal Resistance:

Junction to case (Rth(j-c)): 0.50°C/W
Junction to ambient (Rth(j-a)): 50°C/W

Package Information:

TO-3P insulated, TO-247AD, and TO-247S packages available
Weight varies by package type: 4.8g to 6.5g

Ordering Information:
The ordering scheme includes the SCR series, package type, current, and voltage code. For example, 75PT12BI indicates a 75A SCR with a TO-3P insulated package and 1200V rating.

Figures and Graphs:

Figures illustrate maximum power dissipation versus average on-state current, RMS on-state current versus case temperature, and surge peak on-state current versus number of cycles.

Catalog excerpts

Stansard SCRs, 75A Main Features Symbol DESCRIPTION The 75PT series of silicon controlled rectifiers are high performance glass passivated technology, and are suitable for general purpose applications, where power handling and power dissipation are critical, such as solid state relay, welding equipment and high power motor control. Base on a clip assembly technology, they offer a superior performance in surge current capabilities. Thanks to their internal ceramic pad, they provide high voltage insulation(2500VRMS). TO-3P (Insulated) (75PTxxBI) ABSOLUTE MAXIMUM RATINGS

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75PT Series RoHS ELECTRICAL SPECIFICATIONS (TJ = 25 °C unless otherwise specified) THERMAL RESISTANCE S=Copper surface under tab PRODUCT SELECTOR ORDERING INFORMATION

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RoHS 75PT Series RoHS ORDERING INFORMATION SCHEME SCR series Voltage Code 12 = 1200V 16 = 1600V Package type BI = TO-3P ( insulated) C = TO-247AD D = TO-247S Fig.1 Maximum power dissipation versus average on-state current (half cycle) Fig.2 RMS on-state current versus case temperature (full cycle) IT(RMS) Fig.4 Surge peak on-state current versus number of cycles. Fig.3 On-state characteristics (maximum values).

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RoHS 75PT Series RoHS Fig.6 Relative variations of gate trigger current, holding current and latching current versus junction temperature (typical values) Fig.5 Non-repetitive surge peak on-state current for a sinusoidal pulse with width tp < 10 ms, and corresponding value of l 2 t . ITSM(A),l2t(A2s) Half cycle

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RoHS 75PT Series RoHS Case Style

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75PT12BI

75PT12BI

Catalog excerpts

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