IRLR024ZPBF N-Channel 55V 16A MOSFET Equivalent & Substitute Parts

Part Overview

The IRLR024ZPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 55V drain-to-source voltage and 16A continuous drain current in a Surface Mount TO-252AA (DPAK) package. This device is classified as obsolete product status. Due to its obsolete classification, equivalent and substitute parts from active manufacturers are necessary for ongoing design support, production continuity, and long-term component availability. Substitute parts must maintain compatibility across electrical ratings, package form factor, and thermal characteristics to ensure direct replacement capability in existing circuit designs.

Key Parameters

Parameter	Value	Unit	Condition
Drain-to-Source Voltage (Vdss)	55	V	Maximum Rating
Continuous Drain Current (Id)	16	A	@ 25°C (Tc)
On-State Resistance (Rds On)	58	mOhm	@ 9.6A, 10V Vgs
Gate Threshold Voltage (Vgs(th))	3	V	@ 250µA Id (Max)
Power Dissipation	35	W	@ Tc
Operating Temperature Range	-55 to 175	°C	Tj
Package Type	TO-252-3 (DPAK)	—	Surface Mount
Moisture Sensitivity Level	1	—	Unlimited

Substitute Part Grouping Explanation

Substitute parts for the IRLR024ZPBF are selected based on the following electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Minimum 55V (equal or higher rating acceptable)
Continuous Drain Current (Id): Minimum 16A @ 25°C (equal or higher rating acceptable)
Package Type: TO-252-3 (DPAK) Surface Mount form factor
FET Type: N-Channel MOSFET technology
Mounting: Surface Mount configuration
Moisture Sensitivity: MSL 1 (Unlimited)

Secondary Compatibility Parameters:

On-State Resistance (Rds On): Lower or equal values preferred for thermal performance
Gate Threshold Voltage (Vgs(th)): Within ±1V of original specification
Power Dissipation: Equal or higher rating acceptable
Operating Temperature Range: Minimum -55°C to 150°C (175°C preferred)

Substitute parts meeting these criteria are grouped into two categories: direct electrical equivalents with identical or superior ratings, and functional alternatives with enhanced performance characteristics suitable for the same circuit applications.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Vgs(th) (V)	Power Diss. (W)	Tj Range (°C)	Status
IRLR024ZPBF	Infineon	55	16	58 @ 9.6A, 10V	3 @ 250µA	35	-55 to 175	Obsolete
AOD444	Alpha & Omega	60	12 (Tc)	60 @ 12A, 10V	3 @ 250µA	20	-55 to 175	Active
IRLR024	Vishay Siliconix	60	14	100 @ 8.4A, 5V	2 @ 250µA	42	-55 to 150	Active
IRLR024TR	Vishay Siliconix	60	14	100 @ 8.4A, 5V	2 @ 250µA	42	-55 to 150	Active
IRLR024TRL	Vishay Siliconix	60	14	100 @ 8.4A, 5V	2 @ 250µA	42	-55 to 150	Active
IRLR024TRR	Vishay Siliconix	60	14	100 @ 8.4A, 5V	2 @ 250µA	42	-55 to 150	Active
STD16NF06LT4	STMicroelectronics	60	24	70 @ 8A, 10V	1 @ 250µA	40	-55 to 175	Active
STD20NF06LT4	STMicroelectronics	60	24	40 @ 12A, 10V	2.5 @ 250µA	60	-55 to 175	Active
STD20NF06T4	STMicroelectronics	60	24	40 @ 12A, 10V	4 @ 250µA	60	-55 to 175	Active

Engineering Selection Recommendations

Active Product Availability: All substitute parts listed are classified as Active product status, ensuring long-term availability, manufacturing support, and supply chain continuity. The IRLR024ZPBF obsolete status necessitates transition to one of these active alternatives.

Compliance and Certification: STMicroelectronics parts (STD16NF06LT4, STD20NF06LT4, STD20NF06T4) carry ROHS3 Compliant certification and REACH Unaffected status, meeting modern regulatory requirements. Alpha & Omega AOD444 is ROHS3 Compliant. Vishay Siliconix IRLR024 variants are RoHS non-compliant and should be evaluated against specific design compliance requirements.

Electrical Performance Tier 1 (Closest Electrical Match): AOD444 provides the closest electrical alignment with 60V Vdss, 12A continuous drain current, and 60mOhm Rds On. This part maintains gate threshold voltage at 3V and operates across the full -55°C to 175°C temperature range. Power dissipation is rated at 20W (Tc), which is lower than the original 35W specification.

Electrical Performance Tier 2 (Enhanced Current Capability): STD16NF06LT4 and STD20NF06LT4 offer superior current handling at 24A continuous drain current with lower on-state resistance (70mOhm and 40mOhm respectively). These parts support higher power dissipation (40W and 60W) and maintain full temperature range operation (-55°C to 175°C). STD20NF06LT4 provides the lowest Rds On at 40mOhm, optimizing thermal performance in high-current applications.

Package and Thermal Compatibility: All substitute parts use identical TO-252-3 (DPAK) Surface Mount packaging with 2 Leads + Tab configuration, ensuring mechanical compatibility with existing PCB layouts. Moisture Sensitivity Level 1 (Unlimited) is maintained across all alternatives.

Selection Guidance: For direct replacement in existing designs with minimal circuit modification, AOD444 is recommended. For applications requiring enhanced thermal performance or higher current capacity, STMicroelectronics STripFET™ II series (STD16NF06LT4 or STD20NF06LT4) provides superior specifications with full regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can AOD444 directly replace IRLR024ZPBF in all applications? A: AOD444 meets the primary electrical criteria (60V Vdss, 12A Id) and uses identical TO-252-3 DPAK packaging. However, the continuous drain current rating is 12A compared to the original 16A. Applications operating at or above 14A continuous current require evaluation of thermal margins or selection of higher-rated alternatives such as STD20NF06LT4.

Q: What is the difference between IRLR024, IRLR024TR, IRLR024TRL, and IRLR024TRR? A: These part numbers represent different packaging and tape configurations of the same electrical device from Vishay Siliconix. All four variants share identical electrical specifications (60V Vdss, 14A Id, 100mOhm Rds On). Selection depends on procurement format requirements (bulk, cut tape, or reel configurations). All are classified as Active status.

Q: Why do STMicroelectronics parts have higher current ratings (24A) than the original IRLR024ZPBF (16A)? A: STD16NF06LT4 and STD20NF06LT4 represent enhanced device generations with improved semiconductor technology and thermal design. Higher current ratings reflect superior die design and packaging efficiency. These parts are fully compatible as substitutes and provide additional design margin for thermal and current handling.

Q: Are there temperature range differences between substitute parts? A: Yes. Vishay Siliconix IRLR024 variants operate to 150°C maximum junction temperature, while the original IRLR024ZPBF and STMicroelectronics alternatives support 175°C. For applications requiring full -55°C to 175°C operation, STMicroelectronics STD16NF06LT4 or STD20NF06LT4 are preferred.

Q: What does RoHS compliance status mean for part selection? A: ROHS3 Compliant parts (AOD444, STD16NF06LT4, STD20NF06LT4, STD20NF06T4) meet Restriction of Hazardous Substances Directive requirements and are suitable for applications subject to EU environmental regulations. Vishay Siliconix IRLR024 variants are RoHS non-compliant and should not be used in designs requiring regulatory compliance certification.

Q: Can I use STD20NF06T4 instead of STD20NF06LT4? A: Both parts share identical electrical specifications (60V Vdss, 24A Id, 40mOhm Rds On, 60W power dissipation) and TO-252-3 DPAK packaging. The primary difference is gate threshold voltage: STD20NF06LT4 specifies 2.5V while STD20NF06T4 specifies 4V. Selection depends on gate drive voltage availability in the circuit. Both are ROHS3 Compliant and Active status.

Q: Is the IRLR024 (without suffix) from Vishay a suitable substitute? A: Yes. IRLR024 is classified as Active status and meets electrical criteria with 60V Vdss and 14A Id. However, it is RoHS non-compliant. For new designs or compliance-sensitive applications, STMicroelectronics alternatives are preferred. For legacy system maintenance where RoHS compliance is not required, IRLR024 provides a cost-effective option.

Q: What inventory levels should I consider for long-term supply planning? A: Current inventory levels are: AOD444 (120,100 pcs), STD20NF06T4 (27,055 pcs), STD16NF06LT4 (17,100 pcs), IRLR024 (15,998 pcs), STD20NF06LT4 (2,220 pcs), IRLR024TR (4,325 pcs), IRLR024TRL (4,400 pcs), IRLR024TRR (987 pcs). AOD444 and STD20NF06T4 offer the highest available stock for production planning.

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