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FDMS86181E Equivalent & Substitute Parts
Part Overview
The FDMS86181E is an N-Channel MOSFET manufactured by onsemi, rated for 100V drain-to-source voltage with a maximum on-resistance of 4.2 mOhm. This device is packaged in a PQFN56 configuration and is classified as obsolete. Due to its obsolete product status, locating equivalent or substitute components is necessary for ongoing design support, production continuity, and system maintenance. The FDMS86181E remains available in inventory (951 pcs), but alternative active components should be evaluated for new designs and long-term availability assurance.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Category | Transistors, FETs, MOSFETs |
| FET Type | N-Channel |
| Drain to Source Voltage (Vdss) | 100 V |
| On-Resistance (Rds On Max) | 4.2 mOhm |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution of the FDMS86181E is based on electrical and mechanical compatibility within the N-Channel MOSFET category. The primary substitution candidate is the FDMS86181, which shares the same base product number (FDMS86) and manufacturer (onsemi). Both devices operate at identical voltage ratings (100V Vdss) and maintain the same on-resistance specification (4.2 mOhm @ 44A, 10V). The FDMS86181 is classified as an active product, ensuring continued availability and manufacturing support.
Substitution eligibility is determined by the following parameters:
- Drain-to-Source Voltage (Vdss): 100 V
- On-Resistance (Rds On): 4.2 mOhm maximum
- FET Type: N-Channel
- Technology: MOSFET (Metal Oxide)
- Manufacturer: onsemi
- RoHS and REACH Compliance: ROHS3 Compliant, REACH Unaffected
Parameter Comparison
| Parameter | FDMS86181E (Main Part) | FDMS86181 (Substitute) |
|---|---|---|
| Manufacturer | onsemi | onsemi |
| Category | Transistors, FETs, MOSFETs | Transistors, FETs, MOSFETs |
| FET Type | N-Channel | N-Channel |
| Technology | MOSFET (Metal Oxide) | MOSFET (Metal Oxide) |
| Drain to Source Voltage (Vdss) | 100 V | 100 V |
| Rds On (Max) @ Id, Vgs | 4.2 mOhm @ 44A, 10V | 4.2 mOhm @ 44A, 10V |
| Vgs(th) (Max) @ Id | Not provided | 4V @ 250µA |
| Gate Charge (Qg) (Max) @ Vgs | Not provided | 59 nC @ 10 V |
| Vgs (Max) | Not provided | ±20V |
| Input Capacitance (Ciss) (Max) @ Vds | Not provided | 4125 pF @ 50 V |
| Operating Temperature | Not provided | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The FDMS86181 is the direct substitute for the FDMS86181E. Both components meet identical electrical specifications for drain-to-source voltage (100V) and on-resistance (4.2 mOhm). The FDMS86181 holds active product status, providing assured long-term availability and manufacturing continuity compared to the obsolete FDMS86181E.
Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The MSL rating of 1 (Unlimited) for both devices indicates no moisture sensitivity constraints during storage and handling.
For applications currently using the FDMS86181E, transition to the FDMS86181 is supported by matching electrical performance and compliance certifications. The active status of the FDMS86181 ensures supply chain reliability for production and maintenance requirements.
Frequently Asked Questions (FAQ)
Q: Can the FDMS86181 directly replace the FDMS86181E in existing designs?
A: Yes. Both devices share identical electrical specifications: 100V Vdss rating and 4.2 mOhm on-resistance. They are manufactured by the same supplier (onsemi) and maintain equivalent compliance certifications (ROHS3 Compliant, REACH Unaffected).
Q: What is the primary reason to transition from FDMS86181E to FDMS86181?
A: The FDMS86181E is classified as obsolete, while the FDMS86181 is an active product. Transitioning to the active part ensures continued availability, manufacturing support, and supply chain stability.
Q: Are there packaging differences between these two parts?
A: The FDMS86181E is specified in PQFN56 packaging. The FDMS86181 is supplied in 8-PQFN (5x6) packaging with Tape & Reel (TR) configuration. Package compatibility must be verified against your specific PCB layout and assembly requirements.
Q: Do both parts meet the same regulatory standards?
A: Yes. Both the FDMS86181E and FDMS86181 are ROHS3 compliant and REACH unaffected. Both carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.
Q: What electrical parameters are critical for substitution?
A: The critical parameters for substitution are drain-to-source voltage (100V), on-resistance (4.2 mOhm), FET type (N-Channel), and technology (MOSFET). Both parts match these specifications exactly.
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