IRF520NLPBF Equivalent & Substitute Parts Reference

Part Overview

The IRF520NLPBF (Manufacturer: Infineon Technologies) is an N-Channel MOSFET with a Drain to Source Voltage (Vdss) of 100 V, a Continuous Drain Current (Id) of 9.7A (Tc), and a maximum Rds On of 200mOhm @ 5.7A, 10V. It features through-hole mounting in a TO-262 package and belongs to the HEXFET® series. This part is listed as Obsolete, making it necessary to identify suitable alternative MOSFETs that meet or exceed the specified electrical and mechanical criteria for replacement in existing designs.

Key Parameters

Parameter	Value
FET Type	N-Channel
Technology	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	100 V
Current - Continuous Drain (Id) @ 25°C	9.7A (Tc)
Rds On (Max) @ Id, Vgs	200mOhm @ 5.7A, 10V
Drive Voltage (Max Rds On, Min Rds On)	10V
Vgs(th) (Max) @ Id	4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	25 nC @ 10 V
Vgs (Max)	±20V
Input Capacitance (Ciss) (Max) @ Vds	330 pF @ 25 V
Operating Temperature	-55°C ~ 175°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-262-3 Long Leads, I2PAK, TO-262AA
RoHS/REACH Status	REACH Unaffected
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for IRF520NLPBF are selected strictly based on matching or exceeding values for these key parameters: FET type (N-Channel), technology (MOSFET), Drain to Source Voltage (Vdss), continuous drain current (Id), maximum Rds On at specified Id/Vgs, gate threshold voltage (Vgs(th)), gate charge (Qg), maximum gate-source voltage (Vgs), input capacitance (Ciss), operating temperature range, mounting type (Through Hole), and package/case compatibility (TO-262-3). Compliance attributes, such as RoHS and REACH, as well as MSL level, are also considered.

Parameter Comparison

Parameter	IRF520NLPBF (Infineon Technologies)	IRF540ZLPBF (Infineon Technologies)	IRL530L (Vishay Siliconix)
FET Type	N-Channel	N-Channel	N-Channel
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	100 V	100 V	100 V
Current - Continuous Drain (Id) @ 25°C	9.7A (Tc)	36A (Tc)	15A (Tc)
Rds On (Max) @ Id, Vgs	200mOhm @ 5.7A, 10V	26.5mOhm @ 22A, 10V	160mOhm @ 9A, 5V
Drive Voltage (Max Rds On, Min Rds On)	10V	10V	4V, 5V
Vgs(th) (Max) @ Id	4V @ 250µA	4V @ 250µA	2V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	25 nC @ 10 V	63 nC @ 10 V	28 nC @ 5 V
Vgs (Max)	±20V	±20V	±10V
Input Capacitance (Ciss) (Max) @ Vds	330 pF @ 25 V	1770 pF @ 25 V	930 pF @ 25 V
Operating Temperature	-55°C ~ 175°C (TJ)	-55°C ~ 175°C (TJ)	-55°C ~ 175°C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-262-3 Long Leads, I2PAK, TO-262AA	TO-262-3 Long Leads, I2PAK, TO-262AA	TO-262-3 Long Leads, I2PAK, TO-262AA
RoHS/REACH Status	REACH Unaffected	ROHS3 Compliant, REACH Unaffected	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The IRF520NLPBF is categorized as Obsolete, requiring substitutions in design and maintenance scenarios. The IRF540ZLPBF provides a matching voltage rating, through-hole TO-262 package, and higher current capability. Its RoHS compliance and REACH unaffected status ensure alignment with environmental requirements. The IRL530L also meets key electrical and mechanical parameters; however, it is RoHS non-compliant and offers a lower maximum Vgs. Product status, compliance, and certification should be confirmed for system requirements.

Frequently Asked Questions (FAQ)

Q1: What are the key criteria for selecting a substitute for IRF520NLPBF?
A1: Substitute selection is strictly based on FET type, technology, Vdss, Id, Rds On, Vgs(th), gate charge, maximum Vgs, input capacitance, operating temperature range, mounting type, and package/case compatibility.

Q2: Is package compatibility required for substitution?
A2: Yes. All substitutes listed use a TO-262-3 package, matching the mechanical requirements of the original IRF520NLPBF.

Q3: Are all listed substitutes compliant with RoHS and REACH?
A3: The IRF540ZLPBF is RoHS3 compliant and REACH unaffected. The IRL530L is RoHS non-compliant.

Q4: How does the current rating affect substitution choice?
A4: Substitute parts IRF540ZLPBF and IRL530L both exceed the original part's current capability. Substitute selection should confirm that all electrical operating criteria match system requirements.

Q5: Is the Moisture Sensitivity Level (MSL) relevant?
A5: All parts listed have an MSL of 1 (Unlimited), confirming no restriction for general mounting and storage conditions.

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