
BCM5241A1KMLG
single-channel 10/100BASE-TX Fast Ethernet physical-layer transceiver
Key details
| Part Number | BCM5241A1KMLG |
|---|---|
| Manufacturer | Broadcom |
| Category | Ethernet PHY |
| Lifecycle Status | Obsolete |
| Series | BCM5241 |
| Package / Case | 32-lead QFN |
| Pin Count | 32 |
| Operating Temperature | Commercial grade; confirm exact K-grade range |
| Last Verified | 2026-07-18 |
Part information
BCM5241A1KMLG Overview
BCM5241A1KMLG is a Broadcom single-channel 10/100BASE-TX Fast Ethernet physical-layer transceiver supplied in 32-lead QFN. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.
Key Technical Specifications
| Ethernet Standards | 10BASE-T and 100BASE-TX |
|---|---|
| Host Interfaces | MII and 7-wire serial |
| Supply Voltage | 2.5 V or 3.3 V |
| Power Dissipation | Less than 170 mW |
| Cable Reach | Up to 160 m |
Package and Ordering Notes
The listed package is 32-lead QFN with 32 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. Lifecycle is recorded as Obsolete; confirm current factory support and last-time-buy constraints before design-in.
Sourcing Guidance
BCM5241A1KMLG is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.
For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.
Manufacturer Documentation
Technical values were checked against Broadcom documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
How BCM5241A1KMLG differs from related orderable parts
BCM5241A1KMLG belongs to the BCM5241 family. Compared with BCM5241A1IMLG, the recorded differences include operating temperature: Commercial grade; confirm exact K-grade range versus -40°C to +85°C, I grade. A shared family name does not establish pin, firmware or qualification compatibility.
| Part number | Recorded function | Package | Pins / contacts | Temperature | Lifecycle |
|---|---|---|---|---|---|
| BCM5241A1KMLG | single-channel 10/100BASE-TX Fast Ethernet physical-layer transceiver | 32-lead QFN | 32 pins, leads or contacts | Commercial grade; confirm exact K-grade range | Obsolete |
| BCM5241A1IMLG | single-channel 10/100BASE-TX Fast Ethernet physical-layer transceiver | 32-lead QFN | 32 pins, leads or contacts | -40°C to +85°C, I grade | Obsolete |
For an RFQ or AVL review, quote the complete BCM5241A1KMLG code and verify the manufacturer ordering table, package drawing, packing method and revision. The related numbers above are comparison references, not declared drop-in replacements.
Lifecycle and sourcing review
This part has a legacy lifecycle status. Submit the exact MPN, quantity, delivery destination and date-code requirements for a sourcing review.
BCM5241A1KMLG is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.