What is a press-fit pin?

It is a pin type that allows PCB mounting without soldering. It is used in PIM and 6-Pack products. The time required for the assembly process is reduced as connection is completed by pressing an IGBT module over PCB’s through-hole and applying pressure from the base side. Special press and press-in tools are required. We […]

What type of compatible female terminal (tab terminal) should we choose for a standard package control terminal?

The compatible tab is the 110 series. Please select a tab terminal which has the tab dimensions of 2.8 mm width, and 0.5 mm plate thickness. Relevant products are available on the market from Tyco Electronics Japan G.K., J.S.T. MFG. CO., LTD., and NICHIFU Co., Ltd. Please contact any of these companies for details.

Is there any recommended connector for IPM’s control terminal?

Connectors compatible with V-IPM series terminal shapes (by HIROSE ELECTRIC CO., LTD.) are on the market. P630: MA49-19S-2.54DSA, MA49-19S-2.54DSA(01)P631: MDF7-25S-2.54DSAPlease contact HIROSE ELECTRIC CO., LTD. to purchase the relevant connector or verify reliability.

Is there an upper limit of switching frequency for an IGBT?

The switching frequency (carrier frequency) is not defined in specifications. A higher frequency will increase the switching loss, leading to a problem with the junction temperature. The device will be operable under the absolute maximum rated temperature; a frequency of 15 kHz or less should be used for V-series IGBT module. For a welding device […]

How do I handle a terminal when IPM’s brake circuit is not used?

Pull up the VinDB terminal to VCC to stabilize electric potential.

How do I handle a terminal when IPM’s ALM terminal is not used?

Pull up the ALM terminal to VCC to stabilize electric potential.

How do I read a lot number?

The first digit represents the year of manufacture, the second digit is the month of manufacture, and the remaining 3 to 4 digits are the lot number.

Is there a lifetime for IGBT modules?

Yes. The main factors impacting the IGBT module’s life expectancy are temperature gaps involving the element’s junction temperature Tj, and increase and decrease of case temperature Tc. Refer to technical documents describing the relationship of ΔTj and ΔTc with the device life expectancy.

What are countermeasures against static electricity when an IGBT module is used?

(1) Discharge any static electricity by grounding through a high-capacity resistor, and use a conductive mat that has been grounded (2) Hold the package body without directly touching the IGBT module terminals (especially control terminal) (3) Ground tools such as a soldering tip, at an adequately low resistance (4) Protect a control terminal using conductive […]

Is there any quick way to determine the quality of IGBT before mounting?

You can verify the IGBT by checking the leakage current between G and E, and C and E, using a transistor curve tracer (CT). Simple failure diagnosis can also be done using a voltage, resistance tester in place of a CT. For details, refer to Application Manual Chapter 4-2.