TPH3208LDG Equivalent & Substitute MOSFETs Reference

Part Overview

The TPH3208LDG is an N-Channel GaNFET MOSFET manufactured by Transphorm, designed for surface mount applications with a maximum drain-to-source voltage (Vdss) of 650 V and a continuous drain current of 20A (Tc). This device is RoHS compliant and provided in a 3-PQFN (8x8) package. With a product status listed as Obsolete, it is essential to identify alternative MOSFETs for applications requiring ongoing production or long-term service support.

Key Parameters

Parameter	TPH3208LDG
Category	Transistors, FETs, MOSFETs
FET Type	N-Channel
Technology	GaNFET (Gallium Nitride)
Drain to Source Voltage (Vdss)	650 V
Current - Continuous Drain (Id) @ 25°C	20A (Tc)
Drive Voltage (Max Rds On, Min Rds On)	10V
Rds On (Max) @ Id, Vgs	130mOhm @ 13A, 8V
Vgs(th) (Max) @ Id	2.6V @ 300µA
Gate Charge (Qg) (Max) @ Vgs	14 nC @ 8 V
Vgs (Max)	±18V
Input Capacitance (Ciss) (Max) @ Vds	760 pF @ 400 V
Power Dissipation (Max)	96W (Tc)
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	3-PQFN (8x8)
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute MOSFETs for TPH3208LDG are grouped strictly based on the following key parameters: N-Channel type, equal or higher Drain to Source Voltage (Vdss) of 650V, similar or higher continuous drain current (Id), surface mount package, and RoHS compliance. Drive voltage, maximum Rds On, gate charge, operating temperature range, and power dissipation are additional parameters considered for direct substitution.

Parameter Comparison

Parameter	TPH3208LDG	IXFA22N65X2
Category	Transistors, FETs, MOSFETs	Transistors, FETs, MOSFETs
FET Type	N-Channel	N-Channel
Technology	GaNFET (Gallium Nitride)	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	650 V	650 V
Current - Continuous Drain (Id) @ 25°C	20A (Tc)	22A (Tc)
Drive Voltage (Max Rds On, Min Rds On)	10V	10V
Rds On (Max) @ Id, Vgs	130mOhm @ 13A, 8V	160mOhm @ 11A, 10V
Vgs(th) (Max) @ Id	2.6V @ 300µA	5.5V @ 1.5mA
Gate Charge (Qg) (Max) @ Vgs	14 nC @ 8 V	38 nC @ 10 V
Vgs (Max)	±18V	±30V
Input Capacitance (Ciss) (Max) @ Vds	760 pF @ 400 V	2310 pF @ 25 V
Power Dissipation (Max)	96W (Tc)	390W (Tc)
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Package / Case	3-PQFN (8x8)	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
RoHS Status	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	1 (Unlimited)
Product Status	Obsolete	Active

Engineering Selection Recommendations

TPH3208LDG is classified as Obsolete, requiring the selection of substitute parts with an Active product status for ongoing production. Both TPH3208LDG and IXFA22N65X2 comply with RoHS requirements and are categorized as surface-mount N-Channel MOSFETs with a Vdss of 650V. Moisture Sensitivity Level (MSL) for IXFA22N65X2 is lower, providing extended handling time. Substitute component selection should be based on product status, RoHS compliance, and the specified MSL values supplied in the manufacturer documentation.

Frequently Asked Questions (FAQ)

Q: What are the primary criteria for substituting TPH3208LDG in an application?
A: Substitution is based on N-Channel FET type, 650V Vdss, similar or higher continuous drain current, surface-mount package, RoHS compliance, and comparable drive and Rds On parameters.

Q: Are the package types directly compatible between TPH3208LDG and IXFA22N65X2?
A: TPH3208LDG uses a 3-PQFN (8x8) package, while IXFA22N65X2 uses TO-263HV (TO-263-3, D2PAK, TO-263AB). Surface-mount is the common mounting type, but physical footprint and pinout are package-dependent.

Q: How does product status influence engineering selection?
A: TPH3208LDG is listed as Obsolete; IXFA22N65X2 is Active. Only Active parts are typically suitable for current and future production requirements.

Q: What compliance certifications do the substitute models support?
A: Both parts are RoHS compliant. IXFA22N65X2 is additionally listed as ROHS3 Compliant and REACH Unaffected.

Q: Is Moisture Sensitivity Level (MSL) relevant to part substitution?
A: Yes, MSL indicates allowable exposure time in ambient conditions before reflow soldering. IXFA22N65X2 provides an MSL of 1 (Unlimited), whereas TPH3208LDG is MSL 3 (168 Hours).

Q: Are the electrical parameters directly interchangeable?
A: The substitute maintains equal or higher drain-source voltage and continuous drain current within the specified category. Rds On, gate charge, and input capacitance must be compared to ensure functional compatibility within system requirements.

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