PHT6N06T,135 N-Channel MOSFET 55V 5.5A Equivalent & Substitute Parts

Part Overview

The PHT6N06T,135 is an N-Channel MOSFET manufactured by NXP USA Inc., rated for 55V drain-to-source voltage with 5.5A continuous drain current at 25°C. This device is packaged in SC-73 (TO-261-4, TO-261AA) surface mount configuration and features TrenchMOS™ technology. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support, production continuity, and system maintenance. Substitute parts must maintain electrical compatibility across voltage ratings, current handling capability, thermal characteristics, and package specifications to ensure functional equivalence in circuit applications.

Key Parameters

Parameter	PHT6N06T,135	Unit
Drain-to-Source Voltage (Vdss)	55	V
Continuous Drain Current (Id) @ 25°C	5.5	A (Tc)
On-State Resistance (Rds On) @ Id, Vgs	150	mOhm @ 5A, 10V
Gate Threshold Voltage (Vgs(th)) @ Id	4	V @ 1mA
Gate Charge (Qg) @ Vgs	5.6	nC @ 10V
Input Capacitance (Ciss) @ Vds	175	pF @ 25V
Power Dissipation (Max)	8.3	W (Tc)
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	SC-73 (TO-261-4, TO-261AA)	Surface Mount
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the PHT6N06T,135 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Must equal or exceed 55V
Continuous Drain Current (Id): Must equal or exceed 5.5A at 25°C
On-State Resistance (Rds On): Must not exceed 150mOhm at rated current and 10V gate drive
Package Type: Must be SC-73 (TO-261-4, TO-261AA) surface mount configuration
FET Type: N-Channel only
Technology: MOSFET (Metal Oxide)
Operating Temperature Range: Must support -55°C to 150°C (TJ)

Secondary Compatibility Parameters:

Gate Threshold Voltage (Vgs(th)): Acceptable range 2V to 4V @ specified Id
Gate Charge (Qg): Lower values preferred for switching speed; upper limit 14nC @ 10V
Input Capacitance (Ciss): Upper limit 230pF @ 25V
Maximum Gate Voltage (Vgs): ±16V to ±20V acceptable
Power Dissipation: Thermal capability must support application requirements
RoHS Compliance: ROHS3 compliance preferred for regulatory alignment
Moisture Sensitivity Level (MSL): MSL 1 (Unlimited) required

The substitute parts listed below meet the primary criteria for electrical and mechanical compatibility. Parts with lower current ratings (2A or 1.9A) represent functional substitutes only when application current requirements do not exceed the substitute part's continuous drain current specification.

Parameter Comparison

Parameter	PHT6N06T,135 (Main)	IRLL014NTRPBF	IRFL014NTRPBF	94-3316	Unit
Manufacturer	NXP USA Inc.	Infineon Technologies	Infineon Technologies	Infineon Technologies	—
Drain-to-Source Voltage (Vdss)	55	55	55	55	V
Continuous Drain Current (Id) @ 25°C	5.5	2	1.9	2	A
On-State Resistance (Rds On) @ Id, Vgs	150 @ 5A, 10V	140 @ 2A, 10V	160 @ 1.9A, 10V	140 @ 2A, 10V	mOhm
Gate Threshold Voltage (Vgs(th)) @ Id	4 @ 1mA	2 @ 250µA	4 @ 250µA	2 @ 250µA	V
Gate Charge (Qg) @ Vgs	5.6 @ 10V	14 @ 10V	11 @ 10V	14 @ 10V	nC
Input Capacitance (Ciss) @ Vds	175 @ 25V	230 @ 25V	190 @ 25V	230 @ 25V	pF
Power Dissipation (Max)	8.3 (Tc)	1 (Ta)	1 (Ta)	—	W
Operating Temperature Range	-55 to 150	-55 to 150	-55 to 150	—	°C (TJ)
Package Type	SC-73 (TO-261-4, TO-261AA)	SOT-223 (TO-261-4, TO-261AA)	SOT-223 (TO-261-4, TO-261AA)	SOT-223 (TO-261-4, TO-261AA)	—
Product Status	Obsolete	Active	Active	Active	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Non-Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—

Engineering Selection Recommendations

IRLL014NTRPBF (Infineon Technologies)

The IRLL014NTRPBF is an active production N-Channel MOSFET rated for 55V Vdss with 2A continuous drain current. This part maintains electrical compatibility with the PHT6N06T,135 across voltage and thermal specifications. The IRLL014NTRPBF is ROHS3 compliant and available in high inventory (50,368 pcs). On-state resistance of 140mOhm @ 2A, 10V is within acceptable parameters. Gate charge of 14nC @ 10V and input capacitance of 230pF @ 25V are within specified limits. Operating temperature range of -55°C to 150°C (TJ) matches the main part. This substitute is suitable for applications where continuous drain current does not exceed 2A.

IRFL014NTRPBF (Infineon Technologies)

The IRFL014NTRPBF is an active production N-Channel MOSFET rated for 55V Vdss with 1.9A continuous drain current. This part is ROHS3 compliant with extensive inventory availability (35,100 pcs). On-state resistance of 160mOhm @ 1.9A, 10V is within acceptable parameters. Gate charge of 11nC @ 10V provides improved switching characteristics compared to the main part. Input capacitance of 190pF @ 25V is lower than the main part, supporting faster switching performance. Operating temperature range of -55°C to 150°C (TJ) matches the main part. This substitute is suitable for applications where continuous drain current does not exceed 1.9A.

94-3316 (Infineon Technologies)

The 94-3316 is an active production N-Channel MOSFET rated for 55V Vdss with 2A continuous drain current. On-state resistance of 140mOhm @ 2A, 10V is within acceptable parameters. Gate charge of 14nC @ 10V and input capacitance of 230pF @ 25V are within specified limits. However, this part is RoHS non-compliant, which may restrict use in applications requiring regulatory compliance with RoHS3 standards. This substitute is suitable for applications where continuous drain current does not exceed 2A and RoHS compliance is not required.

Current Rating Limitation:

All three substitute parts are rated for continuous drain currents (1.9A to 2A) significantly lower than the main part (5.5A). These substitutes are functionally equivalent only for applications where the actual circuit current requirement does not exceed the substitute part's continuous drain current rating. For applications requiring the full 5.5A capability of the PHT6N06T,135, alternative higher-current N-Channel MOSFETs with 55V Vdss rating must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can IRLL014NTRPBF directly replace PHT6N06T,135 in all applications?

A: The IRLL014NTRPBF is electrically compatible with the PHT6N06T,135 across voltage, temperature, and package specifications. However, the continuous drain current rating is 2A compared to 5.5A for the main part. Direct replacement is possible only if the application circuit current does not exceed 2A. For applications requiring higher current capability, alternative parts must be selected.

Q: What is the difference between IRLL014NTRPBF and IRFL014NTRPBF?

A: Both parts are N-Channel MOSFETs rated for 55V Vdss with similar electrical characteristics. The primary differences are: IRLL014NTRPBF has 2A continuous drain current and 14nC gate charge; IRFL014NTRPBF has 1.9A continuous drain current and 11nC gate charge. The IRFL014NTRPBF exhibits lower gate charge, which may provide faster switching performance in gate-drive-limited applications. Selection depends on specific current and switching speed requirements.

Q: Are all substitute parts RoHS3 compliant?

A: IRLL014NTRPBF and IRFL014NTRPBF are both ROHS3 compliant. The 94-3316 is RoHS non-compliant. For applications requiring RoHS3 compliance, use IRLL014NTRPBF or IRFL014NTRPBF.

Q: What is the package compatibility between PHT6N06T,135 and the substitute parts?

A: The PHT6N06T,135 uses SC-73 package (TO-261-4, TO-261AA) surface mount configuration. All substitute parts (IRLL014NTRPBF, IRFL014NTRPBF, 94-3316) use SOT-223 package (TO-261-4, TO-261AA) surface mount configuration. Both package types are mechanically and electrically compatible for PCB mounting and circuit integration.

Q: What is the moisture sensitivity level (MSL) for all parts?

A: All parts, including the main part PHT6N06T,135 and all three substitutes (IRLL014NTRPBF, IRFL014NTRPBF, 94-3316), have MSL 1 (Unlimited). This indicates no moisture sensitivity restrictions for storage, handling, or reflow soldering processes.

Q: Can I use 94-3316 in a design requiring RoHS compliance?

A: No. The 94-3316 is RoHS non-compliant. For designs requiring RoHS3 compliance, use IRLL014NTRPBF or IRFL014NTRPBF instead.

Q: What is the operating temperature range for all parts?

A: The PHT6N06T,135 and all substitute parts (IRLL014NTRPBF, IRFL014NTRPBF) support operating temperature range of -55°C to 150°C (TJ). This specification is consistent across all parts, ensuring thermal compatibility in applications across this temperature range.

Q: How do gate charge specifications affect circuit performance?

A: Gate charge (Qg) determines the amount of charge required to switch the MOSFET on or off. The PHT6N06T,135 has 5.6nC @ 10V, while substitutes range from 11nC to 14nC @ 10V. Higher gate charge requires more gate drive current or longer switching time. For gate-drive-limited applications, IRFL014NTRPBF (11nC) provides better performance than IRLL014NTRPBF or 94-3316 (14nC each).

Q: What inventory status should I consider when selecting a substitute?

A: IRLL014NTRPBF has 50,368 pcs in stock, IRFL014NTRPBF has 35,100 pcs in stock, and 94-3316 has 847 pcs in stock. For production continuity and lead time assurance, IRLL014NTRPBF offers the highest inventory availability.

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