IXKP35N60C5 Equivalent & Substitute Parts

Part Overview

The IXKP35N60C5 is an N-Channel 600V 35A MOSFET manufactured by IXYS in the CoolMOS™ series. This device is housed in a TO-220-3 through-hole package and is designed for high-voltage switching applications requiring continuous drain current capability at elevated temperatures. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified to provide design flexibility when the primary part is unavailable, when alternative sourcing is required, or when design specifications permit operation within the electrical and mechanical parameters of equivalent devices. All substitutes listed maintain the same voltage class (600V), through-hole mounting configuration, and compatible gate drive requirements.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	600	V
Continuous Drain Current (Id) @ 25°C	35	A
Drive Voltage (Max Rds On)	10	V
Rds On (Max) @ Id, Vgs	100 mOhm @ 18A, 10V	mOhm
Gate Threshold Voltage Vgs(th) (Max)	3.9	V @ 1.2mA
Gate Charge (Qg) (Max) @ Vgs	70	nC @ 10V
Maximum Gate Voltage (Vgs)	±20	V
Input Capacitance (Ciss) (Max) @ Vds	2800	pF @ 100V
Operating Temperature Range	-40 to 150	°C (TJ)
Package Type	TO-220-3	Through Hole
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the IXKP35N60C5 is determined by the following critical parameters:

Voltage Class Requirement: All substitute parts must maintain a Drain to Source Voltage (Vdss) rating of 600V or higher. This ensures the device can withstand the same maximum voltage stress in the application circuit.

Current Capability: Substitute parts must provide continuous drain current (Id) at 25°C that meets or exceeds the application requirement. The IXKP35N60C5 specifies 35A; substitutes with 31A to 39A are acceptable depending on thermal design and load profile.

Drive Voltage Compatibility: All substitutes operate at 10V gate drive voltage with comparable Rds On characteristics, ensuring compatibility with existing gate driver circuits.

Package and Mounting: All substitutes use through-hole TO-220 family packages (TO-220-3, TO-220F), maintaining mechanical compatibility with printed circuit board layouts and thermal management solutions.

Compliance and Status: Substitutes must maintain RoHS3 compliance and MSL Level 1 rating. Active product status is preferred but not mandatory for substitution eligibility.

Gate Charge and Input Capacitance: These parameters influence switching speed and gate driver power requirements. Substitutes with comparable values (40–70 nC gate charge, 1790–2800 pF input capacitance) ensure consistent switching performance.

Parameter Comparison

Parameter	IXKP35N60C5	STP40N60M2	AOT42S60L	AOTF42S60L	IPP60R099P7XKSA1	STP33N65M2
Manufacturer	IXYS	STMicroelectronics	Alpha & Omega	Alpha & Omega	Infineon	STMicroelectronics
Vdss (V)	600	600	600	600	600	650
Id @ 25°C (A)	35	34	37	39	31	24
Drive Voltage (V)	10	10	10	10	10	10
Rds On (Max) @ 10V (mOhm)	100 @ 18A	88 @ 17A	99 @ 21A	99 @ 21A	99 @ 10.5A	140 @ 12A
Vgs(th) (Max) (V)	3.9	4.0	3.8	3.8	4.0	4.0
Gate Charge Qg (Max) (nC)	70 @ 10V	57 @ 10V	40 @ 10V	40 @ 10V	45 @ 10V	41.5 @ 10V
Ciss (Max) (pF)	2800 @ 100V	2500 @ 100V	2154 @ 100V	2154 @ 100V	1952 @ 400V	1790 @ 100V
Vgs (Max) (V)	±20	±25	±30	±30	±20	±25
Operating Temperature (°C)	-40 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	150
Package	TO-220-3	TO-220	TO-220	TO-220F	PG-TO220-3	TO-220
Product Status	Active	Active	Not For New Designs	Not For New Designs	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

STP40N60M2 (STMicroelectronics) is the closest electrical equivalent with 34A continuous drain current, 600V Vdss, and 88 mOhm Rds On. This device maintains Active product status and provides superior gate charge characteristics (57 nC) compared to the primary part. The extended operating temperature range (-55°C to 150°C) provides additional thermal margin.

IPP60R099P7XKSA1 (Infineon CoolMOS™ P7) offers 31A continuous current with 99 mOhm Rds On and Active product status. This part is suitable for applications where current requirements are slightly reduced but gate charge optimization (45 nC) is beneficial for high-frequency switching circuits.

Secondary Substitutes (Not For New Designs Status):

AOT42S60L and AOTF42S60L (Alpha & Omega aMOS™ series) provide higher current ratings (37A and 39A respectively) with comparable Rds On values (99 mOhm). These devices carry "Not For New Designs" status and should be used only for legacy system maintenance or when existing inventory constraints require their use. Both maintain full RoHS3 compliance and MSL Level 1 rating.

Alternative with Higher Voltage Rating:

STP33N65M2 (STMicroelectronics MDmesh™ M2) operates at 650V Vdss with 24A continuous current. This part is suitable for applications requiring additional voltage margin but with reduced current capability. The higher Rds On value (140 mOhm) results in increased power dissipation and should be evaluated against thermal design constraints.

Compliance Considerations:

All listed substitutes maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage practices. Selection between Active and Not For New Designs status should align with product lifecycle requirements and long-term supply chain planning.

Frequently Asked Questions (FAQ)

Q: Can the STP40N60M2 directly replace the IXKP35N60C5 without circuit modifications?

A: Yes. The STP40N60M2 maintains identical 600V Vdss rating, 10V gate drive voltage, and TO-220-3 package compatibility. The 34A continuous current rating is within the operating range of the IXKP35N60C5 (35A), and the lower Rds On value (88 mOhm vs. 100 mOhm) provides improved efficiency. No circuit modifications are required.

Q: What is the significance of the "Not For New Designs" status on AOT42S60L and AOTF42S60L?

A: This status indicates that the manufacturer has discontinued active development and long-term supply commitment for these parts. They remain available from existing inventory but should not be selected for new product designs. These parts are acceptable for field replacement or legacy system support where supply from the primary part is unavailable.

Q: Why does STP33N65M2 have a higher Vdss (650V) than the IXKP35N60C5 (600V)?

A: The higher voltage rating provides additional safety margin in applications subject to voltage transients or overshoot conditions. However, the 24A continuous current rating is lower than the primary part, making this substitute suitable only for applications with reduced current requirements. The higher Rds On value (140 mOhm) also increases conduction losses.

Q: Are the TO-220 and TO-220-3 packages mechanically interchangeable?

A: Yes. Both package designations refer to the same three-lead through-hole configuration with identical pin spacing and thermal pad dimensions. TO-220-3 and TO-220F variants maintain full mechanical compatibility with standard TO-220 PCB footprints.

Q: How does gate charge (Qg) affect the selection between IXKP35N60C5 and IPP60R099P7XKSA1?

A: The IXKP35N60C5 specifies 70 nC gate charge, while the IPP60R099P7XKSA1 specifies 45 nC. Lower gate charge reduces gate driver power dissipation and enables faster switching transitions. Selection depends on gate driver capability and switching frequency requirements. High-frequency applications benefit from the lower gate charge of the IPP60R099P7XKSA1.

Q: What thermal considerations apply when substituting with AOT42S60L (37A) for the IXKP35N60C5 (35A)?

A: The AOT42S60L provides higher current capability (37A vs. 35A) but carries "Not For New Designs" status. Thermal performance depends on Rds On characteristics and application duty cycle. The AOT42S60L Rds On (99 mOhm @ 21A) is comparable to the primary part (100 mOhm @ 18A). Thermal design validation is required for continuous operation at maximum rated current.

Q: Can IPP60R099P7XKSA1 be used in applications requiring the full 35A rating of the IXKP35N60C5?

A: The IPP60R099P7XKSA1 is rated for 31A continuous current, which is 4A below the IXKP35N60C5 specification. This part is suitable only for applications where the actual load current does not exceed 31A. For applications requiring the full 35A capability, STP40N60M2 (34A) or AOT42S60L (37A) are more appropriate selections.

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