IXTP20N65XM Equivalent & Substitute Parts

Part Overview

The IXTP20N65XM is an N-Channel 650V 9A MOSFET manufactured by IXYS in the Ultra X series, housed in a TO-220-3 through-hole package. This device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The part delivers 63W maximum power dissipation and operates across the temperature range of -55°C to 150°C. Identification of equivalent and substitute parts is necessary due to product status constraints and the need for design flexibility in high-voltage switching applications.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	650	V
Continuous Drain Current (Id) @ 25°C	9	A
Rds On (Max) @ 10A, 10V	210	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	5.5	V
Gate Charge (Qg) @ 10V	35	nC
Power Dissipation (Max)	63	W
Operating Temperature Range	-55 to 150	°C
Package Type	TO-220-3	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the IXTP20N65XM is determined by the following critical parameters: Drain to Source Voltage (Vdss), Continuous Drain Current (Id), On-State Resistance (Rds On), Gate Threshold Voltage (Vgs(th)), and package compatibility. All substitute parts must maintain the same FET type (N-Channel), technology (MOSFET Metal Oxide), and through-hole mounting configuration.

The IXTP20N65XM has two primary substitute categories:

Direct Manufacturer Upgrade (IXYS Series): The IXTP20N65X2M provides superior current handling (20A vs. 9A) while maintaining identical voltage rating (650V) and compatible package configuration. This part operates within the same temperature range and maintains ROHS3 compliance.

Cross-Manufacturer Alternatives (Infineon CoolMOS™ Series): The IPP60R280C6XKSA1 and IPP60R280CFD7XKSA1 offer voltage and current specifications within acceptable operating margins. The IPP60R280CFD7XKSA1 matches the exact voltage (650V) and current (9A) specifications of the main part, while the IPP60R280C6XKSA1 operates at 600V with higher current capacity (13.8A).

Parameter Comparison

Parameter	IXTP20N65XM (Main)	IXTP20N65X2M	IPP60R280C6XKSA1	IPP60R280CFD7XKSA1
Manufacturer	IXYS	IXYS	Infineon Technologies	Infineon Technologies
Vdss (V)	650	650	600	650
Id @ 25°C (A)	9	20	13.8	9
Rds On (Max) (mOhm)	210 @ 10A, 10V	185 @ 10A, 10V	280 @ 6.5A, 10V	280 @ 3.6A, 10V
Vgs(th) (Max) (V)	5.5 @ 250µA	4.5 @ 250µA	3.5 @ 430µA	4.5 @ 180µA
Gate Charge (Qg) (nC)	35 @ 10V	27 @ 10V	43 @ 10V	18 @ 10V
Power Dissipation (Max) (W)	63	36	104	52
Operating Temperature (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150
Package	TO-220-3	TO-220-3 Isolated Tab	PG-TO220-3	PG-TO220-3
Product Status	Last Time Buy	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

IXTP20N65X2M (Recommended Primary Substitute): This part is the preferred substitute due to active product status and manufacturer continuity within the IXYS Ultra X series. The IXTP20N65X2M provides enhanced current capacity (20A) with lower on-state resistance (185 mOhm), delivering improved thermal performance. The isolated tab package variant maintains mechanical compatibility with standard TO-220-3 footprints. ROHS3 compliance and unlimited moisture sensitivity rating ensure regulatory alignment.

IPP60R280CFD7XKSA1 (Recommended Cross-Manufacturer Substitute): This Infineon CoolMOS™ CFD7 device matches the exact voltage (650V) and current (9A) specifications of the IXTP20N65XM. Active product status provides long-term availability. The lower gate charge (18 nC) and reduced input capacitance (807 pF) offer switching efficiency advantages. ROHS3 compliance and PG-TO220-3 package configuration ensure regulatory and mechanical compatibility.

IPP60R280C6XKSA1 (Alternative Cross-Manufacturer Substitute): This CoolMOS™ device operates at 600V with higher current capacity (13.8A). Last Time Buy status limits future availability. Selection of this part requires confirmation that 600V operation is acceptable within the application voltage margin. Higher power dissipation (104W) and gate charge (43 nC) characteristics differ from the main part.

Frequently Asked Questions (FAQ)

Q: Can the IXTP20N65X2M directly replace the IXTP20N65XM without circuit modifications?

A: Yes. The IXTP20N65X2M maintains identical voltage rating (650V), compatible package configuration (TO-220-3 with isolated tab), and matching temperature range (-55°C to 150°C). The enhanced current rating (20A vs. 9A) and lower on-state resistance (185 mOhm vs. 210 mOhm) provide improved performance margins without requiring design changes.

Q: What are the key differences between IXYS and Infineon substitute options?

A: IXYS IXTP20N65X2M maintains series continuity and active product status. Infineon IPP60R280CFD7XKSA1 provides identical electrical specifications (650V, 9A) with superior switching characteristics (lower gate charge and input capacitance). Both are ROHS3 compliant and operate across the same temperature range. Package variants (isolated tab vs. standard PG-TO220-3) may affect thermal management and PCB layout considerations.

Q: Is the IPP60R280C6XKSA1 suitable for applications requiring 650V operation?

A: The IPP60R280C6XKSA1 operates at 600V maximum, which is 50V below the IXTP20N65XM specification. This part is suitable only for applications where 600V operation provides adequate voltage margin. Confirmation of application voltage requirements is necessary before selection.

Q: How do on-state resistance values affect thermal performance?

A: Lower on-state resistance (Rds On) reduces conduction losses and heat generation. The IXTP20N65X2M (185 mOhm) and IPP60R280CFD7XKSA1 (280 mOhm) exhibit different resistance characteristics. At identical current levels, the IXTP20N65X2M generates less heat. The IPP60R280CFD7XKSA1 compensates with higher maximum power dissipation rating (52W vs. 63W for main part), indicating thermal design optimization for the CoolMOS™ architecture.

Q: Are gate charge differences significant for driver circuit design?

A: Gate charge (Qg) affects switching speed and driver power requirements. The IPP60R280CFD7XKSA1 (18 nC) requires lower gate charge than the IXTP20N65XM (35 nC), enabling faster switching with reduced driver current demand. The IXTP20N65X2M (27 nC) provides intermediate characteristics. Existing driver circuits designed for the main part accommodate all substitute options without modification.

Q: What package considerations apply to TO-220-3 variants?

A: All substitute parts use TO-220-3 or compatible PG-TO220-3 packages suitable for through-hole mounting. The IXTP20N65X2M features an isolated tab variant, which may provide improved thermal isolation in specific PCB layouts. Standard PG-TO220-3 packages (Infineon parts) maintain mechanical compatibility with existing footprints. Verify PCB pad configuration and thermal management requirements before final selection.

Q: Why is product status relevant to part selection?

A: The IXTP20N65XM is Last Time Buy, indicating discontinued production with limited inventory. The IXTP20N65X2M and IPP60R280CFD7XKSA1 maintain active status, ensuring long-term availability and supply chain stability. The IPP60R280C6XKSA1, also Last Time Buy, offers limited future procurement options.

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