SPD18P06P MOSFET P-Channel 60V 18.6A Equivalent & Substitute Parts

Part Overview

The SPD18P06P is a P-Channel MOSFET manufactured by Infineon Technologies, rated for 60V drain-to-source voltage with 18.6A continuous drain current at 25°C. The device is housed in a TO-252-3 (DPAK) surface mount package and is designed for 80W power dissipation. The SPD18P06P is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
FET Type	P-Channel	—
Drain to Source Voltage (Vdss)	60	V
Continuous Drain Current (Id) @ 25°C	18.6	A (Tc)
On-Resistance (Rds On) @ 13.2A, 10V	130	mOhm
Gate Threshold Voltage (Vgs(th)) @ 1mA	4	V
Power Dissipation (Max)	80	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-252-3, DPAK	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the SPD18P06P is determined by the following critical parameters:

Primary Substitution Criteria:

FET Type: P-Channel topology
Drain-to-Source Voltage (Vdss): 60V minimum rating
Package: TO-252-3 (DPAK) surface mount configuration
Mounting Type: Surface mount compatibility

Secondary Compatibility Factors:

Continuous Drain Current (Id): Minimum 18.6A at 25°C for direct replacement; lower ratings indicate reduced current capacity
On-Resistance (Rds On): Values within ±20% of 130 mOhm maintain thermal and switching performance
Operating Temperature Range: Minimum -55°C to 150°C; extended range to 175°C preferred
Gate Threshold Voltage (Vgs(th)): Range of 1V to 4V acceptable for gate drive compatibility
Power Dissipation: Minimum 80W (Tc) for equivalent thermal handling

Substitute parts are grouped into two categories: Parametric Equivalents (matching all critical specifications) and Functional Alternatives (meeting core requirements with acceptable trade-offs in secondary parameters).

Parameter Comparison

Parameter	SPD18P06P	SPD18P06PGBTMA1	AOD407	DMP6180SK3-13	FQD17P06TM	NTD20P06LT4G	ZXMP6A17KTC
Manufacturer	Infineon	Infineon	Alpha & Omega	Diodes Inc.	onsemi	onsemi	Diodes Inc.
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Vdss (V)	60	60	60	60	60	60	60
Id @ 25°C (A)	18.6 (Tc)	18.6 (Tc)	12 (Tc)	14 (Tc)	12 (Tc)	15.5 (Ta)	4.4 (Ta)
Rds On @ 10V (mOhm)	130 @ 13.2A	130 @ 13.2A	115 @ 12A	110 @ 12A	135 @ 6A	150 @ 7.5A	125 @ 2.3A
Vgs(th) (V)	4 @ 1mA	4 @ 1mA	3 @ 250µA	2.7 @ 250µA	4 @ 250µA	2 @ 250µA	1 @ 250µA
Qg @ 10V (nC)	33	33	20	17.1	27	26	17.7
Power Dissipation (W)	80 (Tc)	80 (Tc)	50 (Tc)	1.7 (Ta)	44 (Tc)	65 (Tc)	2.11 (Ta)
Operating Temp (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 150	-55 to 150	-55 to 175	-55 to 150
Package	TO-252-3	TO-252-3	TO-252	TO-252-3	TO-252AA	DPAK	TO-252-3
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement):

SPD18P06PGBTMA1 is the primary equivalent substitute. This Infineon component maintains identical electrical specifications (18.6A continuous drain current, 130 mOhm Rds On, 33 nC gate charge) and package configuration (TO-252-3). The part is classified as Active with ROHS3 compliance and extended operating temperature range (-55°C to 175°C), matching the original SPD18P06P thermal envelope. This substitute requires no circuit redesign.

Functional Alternatives (Current Capacity Trade-offs):

AOD407, DMP6180SK3-13, FQD17P06TM, and NTD20P06LT4G are active alternatives suitable for applications where continuous drain current requirements are ≤15.5A. These parts maintain 60V Vdss rating and TO-252-3 package compatibility. All are ROHS3 compliant. Selection among these alternatives depends on specific current and thermal requirements:

AOD407: 12A continuous current, 50W power dissipation, suitable for moderate-current applications
DMP6180SK3-13: 14A continuous current, lower gate charge (17.1 nC), optimized for switching efficiency
FQD17P06TM: 12A continuous current, 44W power dissipation, onsemi QFET series
NTD20P06LT4G: 15.5A continuous current, 65W power dissipation, closest to original current rating

ZXMP6A17KTC is not recommended as a substitute due to significantly reduced continuous drain current (4.4A), which does not meet the 18.6A requirement of the original design.

All recommended substitutes carry REACH Unaffected and EAR99 ECCN classifications, matching the original part's regulatory status.

Frequently Asked Questions (FAQ)

Q: Can SPD18P06PGBTMA1 be used as a direct replacement for SPD18P06P?

A: Yes. SPD18P06PGBTMA1 is a parametric equivalent with identical electrical specifications (18.6A Id, 130 mOhm Rds On, 60V Vdss) and package configuration (TO-252-3). The part is Active status with ROHS3 compliance. No circuit modifications are required.

Q: What is the difference between the substitute parts listed?

A: Substitute parts differ primarily in continuous drain current rating and power dissipation. SPD18P06PGBTMA1 matches the original 18.6A specification. AOD407, DMP6180SK3-13, FQD17P06TM, and NTD20P06LT4G provide 12A to 15.5A current ratings, suitable for lower-current applications. ZXMP6A17KTC (4.4A) is not suitable for designs requiring the full 18.6A capacity.

Q: Are all substitute parts in the same package?

A: All recommended substitutes use TO-252-3 (DPAK) surface mount packaging, ensuring mechanical and thermal compatibility. FQD17P06TM uses TO-252AA variant, which is functionally equivalent to TO-252-3 for PCB mounting.

Q: What is the significance of Rds On (on-resistance) when selecting a substitute?

A: Rds On determines conduction losses and heat generation. The original SPD18P06P specifies 130 mOhm at 13.2A, 10V. Substitute parts with similar Rds On values (110–150 mOhm range) maintain comparable thermal performance. Lower Rds On values reduce power dissipation; higher values increase heat generation.

Q: Can I use a substitute with lower continuous drain current rating?

A: Substitutes with lower Id ratings (12A to 15.5A) can be used only if your circuit's maximum drain current does not exceed the substitute's rating. Using a part rated below your circuit's actual current demand will cause overheating and device failure. Verify your application's peak and continuous current requirements before selection.

Q: What does "Active" product status mean?

A: Active status indicates the part is currently manufactured and available from the supplier. The original SPD18P06P is Obsolete, meaning it is no longer produced. All recommended substitutes are Active, ensuring long-term availability and supply chain reliability.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All recommended substitute parts carry ROHS3 Compliant certification, matching modern environmental and regulatory requirements. The original SPD18P06P does not specify RoHS status, but all active alternatives meet current compliance standards.

Q: What is gate charge (Qg) and why does it vary among substitutes?

A: Gate charge is the total charge required to switch the MOSFET on or off. Lower Qg values (17–20 nC) enable faster switching with lower gate drive power. Higher Qg values (27–33 nC) require more gate drive current but may offer other performance benefits. Select based on your gate driver's current capability and switching frequency requirements.

Q: Can I mix different substitute parts in the same circuit?

A: Mixing different MOSFET models in parallel or series configurations is not recommended without detailed thermal and electrical analysis. Differences in Rds On, Vgs(th), and gate charge can cause unequal current distribution and thermal stress. Use identical part numbers for redundant or parallel configurations.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message