FDP5500 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The FDP5500 is an N-Channel MOSFET manufactured by onsemi, rated for 55V drain-to-source voltage with 80A continuous drain current in a Through Hole TO-220-3 package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The FDP5500 is suitable for high-current switching applications requiring moderate voltage ratings and low on-state resistance characteristics.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	55	V
Continuous Drain Current (Id) @ 25°C	80	A (Tc)
On-State Resistance (Rds On) @ 80A, 10V	7	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4	V
Gate Charge (Qg) @ 20V	269	nC
Power Dissipation (Max)	375	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-220-3	Through Hole

Substitute Part Grouping Explanation

Substitution of the FDP5500 is determined by the following critical parameters:

Voltage Rating Compatibility: Substitute parts must have a Vdss rating equal to or greater than 55V. Parts with higher voltage ratings (60V, 75V) are acceptable as they provide equivalent or superior voltage withstand capability.

Current Rating Compatibility: Substitute parts must support continuous drain current (Id) at or above 80A (Tc). This ensures the substitute can handle the same or greater current loads without thermal derating.

On-State Resistance (Rds On): Substitute parts must maintain comparable or lower Rds On values at equivalent gate drive voltages (10V) to ensure similar power dissipation and thermal performance.

Package Type: All substitute parts must use Through Hole TO-220-3 or compatible TO-220 packaging to maintain mechanical and thermal interface compatibility.

Operating Temperature Range: Substitute parts must support the full operating temperature range of -55°C to 175°C (TJ).

Gate Drive Voltage: Substitute parts must be compatible with standard 10V gate drive voltage specifications.

Parameter Comparison

Parameter	FDP5500	AOT2606L	DMTH6005LCT	IXTP120N075T2	TK4R3E06PL,S1X
Manufacturer	onsemi	Alpha & Omega Semiconductor Inc.	Diodes Incorporated	IXYS	Toshiba Semiconductor and Storage
Vdss (V)	55	60	60	75	60
Id @ 25°C (A, Tc)	80	72	100	120	80
Rds On @ 10V (mOhm)	7	6.5	6	7.7	7.2
Vgs(th) @ 250µA (V)	4	3.5	3	4	2.5
Qg @ 10V or 20V (nC)	269 @ 20V	75 @ 10V	47.1 @ 10V	78 @ 10V	48.2 @ 10V
Power Dissipation (W, Tc)	375	115	125	250	87
Operating Temperature (°C, TJ)	-55 to 175	-55 to 175	-55 to 175	-55 to 175	to 175
Package	TO-220-3	TO-220	TO-220-3	TO-220-3	TO-220
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

DMTH6005LCT (Diodes Incorporated) is the primary substitute for the FDP5500. This part meets or exceeds all critical electrical parameters: 60V Vdss (5V margin above FDP5500), 100A continuous drain current (20A above requirement), and 6mOhm Rds On at 10V (lower than FDP5500). The DMTH6005LCT is AEC-Q101 qualified for automotive applications and ROHS3 compliant. The TO-220-3 package provides direct mechanical compatibility. Product status is Active, ensuring long-term availability.

TK4R3E06PL,S1X (Toshiba Semiconductor and Storage) is a secondary substitute with equivalent current rating (80A) and comparable Rds On (7.2mOhm). This part offers 60V Vdss and maintains the same operating temperature range. ROHS3 compliance is confirmed. The TO-220 package is mechanically compatible with TO-220-3 applications. Product status is Active.

AOT2606L (Alpha & Omega Semiconductor Inc.) provides 60V Vdss and 72A continuous drain current, which approaches but does not fully meet the 80A requirement. Rds On is 6.5mOhm at 10V. This part is ROHS3 compliant and Active. Use is limited to applications where 72A continuous current is acceptable.

IXTP120N075T2 (IXYS) offers the highest voltage rating (75V) and current rating (120A), providing significant design margin. Rds On is 7.7mOhm at 10V. This part is ROHS3 compliant and Active. The higher voltage rating may introduce unnecessary cost in applications where 55V is sufficient.

All substitute parts share the following compliance attributes with the FDP5500: REACH Unaffected status, EAR99 ECCN classification, and HTSUS code 8541.29.0095. All operate across the -55°C to 175°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can the FDP5500 be directly replaced with any of these substitute parts?

A: Direct replacement depends on application requirements. DMTH6005LCT and TK4R3E06PL,S1X provide the closest electrical and mechanical compatibility. AOT2606L has lower continuous current rating (72A vs. 80A). IXTP120N075T2 has higher voltage and current ratings, suitable for applications with greater design margin requirements.

Q: What is the primary reason for substitution?

A: The FDP5500 is classified as obsolete. Substitute parts are all Active status, ensuring continued availability, manufacturing support, and compliance with current industry standards.

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

A: TO-220 and TO-220-3 are mechanically compatible in most applications. Both are Through Hole packages with identical lead spacing and thermal interface characteristics. Verify PCB footprint compatibility before selection.

Q: Which substitute offers the best thermal performance?

A: DMTH6005LCT provides the highest power dissipation rating (125W Tc) and lowest Rds On (6mOhm @ 10V), resulting in superior thermal performance. IXTP120N075T2 offers 250W Tc but with slightly higher Rds On (7.7mOhm).

Q: Do all substitutes support 10V gate drive voltage?

A: Yes. All substitute parts are specified with 10V gate drive voltage compatibility. TK4R3E06PL,S1X and DMTH6005LCT also support 4.5V gate drive voltage, providing additional flexibility.

Q: What compliance certifications are important for my application?

A: All substitute parts are ROHS3 compliant and REACH Unaffected. DMTH6005LCT carries AEC-Q101 automotive qualification. Select based on your specific industry requirements (automotive, industrial, consumer).

Q: How do gate charge specifications affect substitution?

A: The FDP5500 has higher gate charge (269nC @ 20V) compared to substitutes (47-78nC @ 10V). Lower gate charge in substitutes results in faster switching and reduced gate drive power requirements. This is a performance advantage in most applications.

Q: Is the FDP5500 still available for purchase?

A: The FDP5500 is obsolete. Inventory availability is limited to existing stock (1081 Pcs noted). All substitute parts are Active status with confirmed inventory availability, making them the recommended choice for new designs and ongoing production.

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