
| Type | Description | ||
|---|---|---|---|
| Series | Multifuse®, MF-R | Series | Multifuse®, MF-R |
| Package | Tape & Box (TB) | Product Status | Obsolete |
| Type | Polymeric | Voltage - Max | 30V |
| Current - Hold (Ih) (Max) | 3 A | Current - Trip (It) | 6 A |
| Current - Max | 40 A | Time to Trip | 10.8 s |
| Resistance - Initial (Ri) (Min) | 20 mOhms | Resistance - Post Trip (R1) (Max) | 80 mOhms |
| Operating Temperature | -40°C ~ 85°C | Mounting Type | Through Hole |
| Package / Case | Radial, Disc | Size / Dimension | 0.472" L x 0.118" W (12.00mm x 3.00mm) |
| Height - Seated (Max) | 0.720" (18.30mm) | Lead Spacing | 0.201" (5.10mm) |
| Approval Agency | cURus, TUV | Base Product Number | MF-R300 |
YG GROUP (YUGUANG INTERNATIONAL(HK)CO.,LTD) supports reliable sourcing through quality controls and compliance documentation. Please confirm product requirements, applicable certifications and supporting documents before ordering.
MF-R300-AP-99 is an authentic electronic component manufactured by Bourns, categorized under Resettable Fuses - PPTC. It is supplied in the standard Tape & Box (TB) package footprint, providing industry-standard mechanical dimensions and terminal configurations for board-level assembly. Full pinout configurations, physical footprint drawings, and rated operating tolerances are documented in the official MF-R300-AP-99 datasheet above.
Electronic component spot-market pricing for MF-R300-AP-99 fluctuates based on real-time global availability, production date codes, minimum order quantities (MOQ), and packaging formats (e.g., Reel, Tube, Tray). Using an RFQ ensures you receive accurate, real-time volume pricing tied to verified, traceable inventory rather than stale catalog estimates.
Lead times for MF-R300-AP-99 depend on whether stock is dispatched from our central hub or regional franchise partners. Ready-to-ship inventory typically leaves the warehouse within 1–3 business days following quality inspection, while factory-direct or back-ordered allocations are confirmed with an estimated ship date upon RFQ reply.
Loading articles…

Loading articles…

Buying GRM155C80J106ME11D for a compact board? Compare effective capacitance, bias and packaging—not 10 µF alone. Send your rail requirements for an RFQ.
Read more →
Sourcing TPS53915RVER for a server rail? Map 12-A loads, bias supplies and PMBus functions before buying. Send your power-rail requirements for an RFQ.
Read more →
Replacing a relay with TPS1HB16AQPWPRQ1? Check inrush, A-version current limits and fault recovery before ordering. Send your 12-V load brief for an RFQ.
Read more →
Adding W5500 Ethernet to an MCU? Budget IPv4 sockets, SPI transfers and buffers before buying the network BOM. Send your board requirements for an RFQ.
Read more →Loading related products…
| Picture | Part Number | Manufacturer | PDF / RoHS | Stock | Action |
|---|---|---|---|---|---|
![]() | Bourns | 9,670 | |||
![]() | Bourns | 2,500 | |||
![]() | Bourns | 5,440 | |||
![]() | Bourns | 7,220 | |||
![]() | Bourns | 2,780 | |||
![]() | Bourns | 3,040 | |||
![]() | Bourns | 8,420 | |||
![]() | Bourns | 4,770 | |||
![]() | Bourns | 2,290 | |||
![]() | Bourns | 2,880 |