IRF2204SPBF N-Channel 40V 170A MOSFET Equivalent & Substitute Parts

Part Overview

The IRF2204SPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 40V drain-to-source voltage with 170A continuous drain current at 25°C. This device is packaged in D2PAK (TO-263-3) surface mount configuration and is part of the HEXFET® series. The IRF2204SPBF is classified as Obsolete, making identification of equivalent and substitute parts essential for ongoing design support, production continuity, and component sourcing. Substitute parts must maintain electrical compatibility across critical parameters including voltage rating, current capacity, on-resistance characteristics, and thermal performance while accommodating the D2PAK surface mount package standard.

Key Parameters

Parameter	Value	Unit	Specification Condition
Drain-to-Source Voltage (Vdss)	40	V	Maximum rating
Continuous Drain Current (Id)	170	A	@ 25°C (Tc)
On-Resistance (Rds On Max)	3.6	mOhm	@ 130A, 10V Vgs
Gate Threshold Voltage (Vgs th)	4	V	@ 250µA Id
Gate Charge (Qg Max)	200	nC	@ 10V Vgs
Power Dissipation (Max)	200	W	@ Tc
Operating Temperature Range	-55 to 175	°C	Junction temperature (TJ)
Package Type	D2PAK	TO-263-3	Surface mount
FET Type	N-Channel		Metal oxide semiconductor

Substitute Part Grouping Explanation

Substitute parts for the IRF2204SPBF are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Drain-to-Source Voltage (Vdss): Must equal or exceed 40V
Package Type: Must be D2PAK (TO-263-3) surface mount configuration
Continuous Drain Current (Id): Must support minimum 170A at 25°C or equivalent thermal conditions
On-Resistance (Rds On): Must be compatible with application requirements
Operating Temperature Range: Must span -55°C to 175°C
RoHS and REACH Compliance: Must maintain ROHS3 Compliant and REACH Unaffected status

Substitution Logic: Parts are grouped into two categories based on current rating alignment:

Category A - Direct Current Replacement (≥170A): IRF1404ZSTRLPBF (180A) and SUM110N04-03P-E3 (110A with higher power dissipation capability) provide equivalent or superior current handling at 40V with D2PAK packaging.

Category B - Reduced Current Substitutes (75A-105A): BUK964R4-40B,118 (75A) and STB120N4F6 (80A) operate at 40V in D2PAK but with lower continuous current ratings, suitable only for applications with reduced current demands.

Category C - Voltage Upgrade (100V): STH310N10F7-2 operates at 100V with 180A current in H2PAK-2 package, providing voltage margin but requiring package compatibility verification.

Category D - Lower Current Alternative: AOB240L (105A at Tc) with reduced current specification and "Not For New Designs" status, included for legacy system support only.

All substitute parts maintain identical FET technology (Metal Oxide N-Channel), RoHS3 compliance, MSL Level 1, and operating temperature range as the IRF2204SPBF.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On Max (mOhm)	Qg Max (nC)	Power Diss. (W)	Package	Status
IRF2204SPBF	Infineon	40	170	3.6 @ 130A, 10V	200 @ 10V	200	D2PAK	Obsolete
IRF1404ZSTRLPBF	Infineon	40	180	3.7 @ 75A, 10V	150 @ 10V	200	D2PAK	Active
SUM110N04-03P-E3	Vishay Siliconix	40	110	3.1 @ 30A, 10V	150 @ 10V	375	D2PAK	Active
BUK964R4-40B,118	Nexperia	40	75	4.0 @ 25A, 10V	64 @ 5V	254	D2PAK	Active
STB120N4F6	STMicroelectronics	40	80	4.0 @ 40A, 10V	65 @ 10V	110	D2PAK	Active
AOB240L	Alpha & Omega	40	105	2.6 @ 20A, 10V	72 @ 10V	176	D2PAK	Not For New Designs
STH310N10F7-2	STMicroelectronics	100	180	2.5 @ 60A, 10V	180 @ 10V	315	H2PAK-2	Active

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement: IRF1404ZSTRLPBF (Infineon Technologies) is the preferred substitute for IRF2204SPBF. This part maintains identical 40V voltage rating, D2PAK package configuration, and exceeds the original 170A specification with 180A continuous drain current. The IRF1404ZSTRLPBF is Active status with full production availability (22,200 pcs in stock), ensuring long-term supply continuity. Both parts share HEXFET® series heritage, ROHS3 compliance, and identical operating temperature range (-55°C to 175°C). Gate charge is reduced (150 nC vs. 200 nC), providing improved switching performance.

Secondary Recommendation - High Power Dissipation Alternative: SUM110N04-03P-E3 (Vishay Siliconix) provides 40V, D2PAK packaging, and Active product status. While rated for 110A continuous current (below the original 170A), this TrenchFET® device offers superior power dissipation capability (375W vs. 200W), making it suitable for applications where thermal management is prioritized over maximum current capacity. Lower on-resistance (3.1 mOhm @ 30A) supports efficient operation in reduced-current applications.

Reduced Current Alternatives: BUK964R4-40B,118 (Nexperia, 75A) and STB120N4F6 (STMicroelectronics, 80A) are suitable only for applications requiring less than 80A continuous current. Both maintain 40V rating, D2PAK packaging, and Active status. STB120N4F6 includes AEC-Q101 automotive qualification, appropriate for automotive-grade applications.

Not Recommended for New Designs: AOB240L (Alpha & Omega Semiconductor) carries "Not For New Designs" status and should be used only for legacy system maintenance or repair applications requiring exact form-factor compatibility.

Voltage Upgrade Consideration: STH310N10F7-2 (STMicroelectronics, 100V, 180A) provides voltage margin and equivalent current capacity but uses H2PAK-2 package instead of D2PAK. This part is suitable only if PCB layout can accommodate the different package footprint and if 100V rating is acceptable for the application.

Compliance Verification: All recommended substitutes maintain ROHS3 Compliant status, REACH Unaffected designation, MSL Level 1 (Unlimited), and identical EAR99 export classification as the original IRF2204SPBF.

Frequently Asked Questions (FAQ)

Q1: Can IRF1404ZSTRLPBF directly replace IRF2204SPBF without PCB modifications?

A: Yes. IRF1404ZSTRLPBF uses identical D2PAK (TO-263-3) package footprint as IRF2204SPBF. No PCB layout changes are required. Both parts are surface mount devices with the same lead configuration (2 leads + tab). Electrical parameters are compatible across all critical specifications including 40V Vdss, operating temperature range, and gate drive voltage.

Q2: What is the primary difference between IRF1404ZSTRLPBF and the original IRF2204SPBF?

A: IRF1404ZSTRLPBF provides 180A continuous drain current versus 170A in the original part, representing a 5.9% current increase. Gate charge is reduced from 200 nC to 150 nC, improving switching speed. On-resistance specification differs due to different measurement conditions (3.7 mOhm @ 75A vs. 3.6 mOhm @ 130A), but both parts are suitable for equivalent applications. IRF1404ZSTRLPBF is Active status with full production support.

Q3: Why is STH310N10F7-2 listed as a substitute if it has 100V rating instead of 40V?

A: STH310N10F7-2 is included as a voltage-upgraded alternative for applications where higher voltage margin is beneficial. The 100V rating provides additional design safety in circuits with voltage transients or overshoot conditions. However, this part uses H2PAK-2 package instead of D2PAK, requiring PCB footprint verification before implementation. Use this part only if your application can accommodate the different package and if 100V operation is acceptable.

Q4: Can I use BUK964R4-40B,118 or STB120N4F6 as direct replacements?

A: These parts are suitable only if your application requires less than 80A continuous current. Both maintain 40V rating and D2PAK packaging but provide reduced current capacity (75A and 80A respectively) compared to the original 170A specification. Use these parts only for applications with confirmed lower current requirements. Do not use for designs requiring the full 170A capability.

Q5: What does "Not For New Designs" status mean for AOB240L?

A: "Not For New Designs" indicates that Alpha & Omega Semiconductor has discontinued active development and marketing of this part. While AOB240L remains available in inventory (10,326 pcs), it should be used only for legacy system repairs or maintenance where exact form-factor compatibility is critical. For new designs, select IRF1404ZSTRLPBF or SUM110N04-03P-E3 instead.

Q6: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (IRF1404ZSTRLPBF, SUM110N04-03P-E3, BUK964R4-40B,118, STB120N4F6, AOB240L, and STH310N10F7-2) maintain ROHS3 Compliant status identical to the original IRF2204SPBF. All parts are also REACH Unaffected and carry MSL Level 1 (Unlimited) moisture sensitivity rating.

Q7: Which substitute offers the best thermal performance?

A: SUM110N04-03P-E3 provides the highest power dissipation rating at 375W (Tc) compared to 200W in the original IRF2204SPBF. This makes it optimal for applications prioritizing thermal efficiency. However, its 110A current rating is lower than the original 170A specification. For applications requiring both high current and thermal performance, IRF1404ZSTRLPBF at 200W dissipation with 180A current provides the best balance.

Q8: What package compatibility issues should I consider?

A: Most substitutes use D2PAK (TO-263-3) package identical to IRF2204SPBF. Exception: STH310N10F7-2 uses H2PAK-2 package, which has different footprint dimensions and lead spacing. Verify PCB layout compatibility before selecting STH310N10F7-2. All D2PAK variants (IRF1404ZSTRLPBF, SUM110N04-03P-E3, BUK964R4-40B,118, STB120N4F6, AOB240L) are pin-compatible with the original part.

Q9: Do substitute parts require different gate drive voltage?

A: No. All substitute parts operate with identical ±20V maximum gate voltage rating and 10V drive voltage specification as the original IRF2204SPBF. Gate threshold voltage (Vgs th) ranges from 2V to 4V across all parts, all within standard gate driver output specifications. No gate drive circuit modifications are required.

Q10: Which substitute has the lowest on-resistance?

A: AOB240L provides the lowest on-resistance at 2.6 mOhm @ 20A, 10V. However, this part carries "Not For New Designs" status. Among Active status parts, SUM110N04-03P-E3 offers 3.1 mOhm @ 30A, 10V. IRF1404ZSTRLPBF provides 3.7 mOhm @ 75A, 10V. Lower on-resistance reduces power dissipation in high-current applications but must be evaluated against current rating requirements.

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