1812L110/48QR
Resettable PTC Overcurrent ProtectorThe 1812L110/48QR is a resettable ptc overcurrent protector from MHF. View the full 1812L110/48QR datasheet below including key specifications.
Official 1812L110/48QR datasheet (PDF) — the source this page was extracted from.
1812L110/48QR Key Specifications
| Parameter | Value |
|---|---|
| Body Width | 3.07 mm to 3.41 mm |
| Body Length | 4.37 mm to 4.73 mm |
| Resistance R Min | 0.040 to 0.060 Ω (varies by variant) |
| Resistance R1max | 0.180 to 0.210 Ω (varies by variant) |
| Hold Current (I Hold) | 1.10 A |
| Trip Current (I Trip) | 1.95 A to 2.20 A (varies by voltage variant) |
| Maximum Voltage (V Max) | up to 33 Vdc (datasheet variants 8 V to 33 V) |
| Moisture Sensitivity Level | Level 1 (J-STD-020) |
| Typical Power Dissipation (Pd) | 0.8 W |
| Maximum Interrupt Current (I Max) | 20 A to 100 A (varies by voltage variant) |
1812L110/48QR Overview
Part: 1812L Series
Type: Resettable PTC
Description: The 1812L Series is a surface mount resettable PTC providing overcurrent protection with hold currents from 0.10 A to 3.00 A and maximum voltages up to 60 Vdc.
Operating Conditions:
- Supply voltage: 6–60 Vdc
- Operating temperature: -40 to 85 °C
- Hold current: 0.10 A to 3.00 A
Absolute Maximum Ratings:
- Max supply voltage: 60 Vdc
- Max continuous current: 100 A
- Max junction/storage temperature: 125 °C
Key Specs:
- Hold Current (Ihold): 0.10 A to 3.00 A
- Trip Current (Itrip): 0.30 A to 5.00 A
- Max Voltage (Vmax): 6 Vdc to 60 Vdc
- Max Current (Imax): 10 A to 100 A
- Power Dissipation (Pd typ.): 0.8 W
- Min Resistance (Rmin): 0.012 Ω to 1.600 Ω
- Max Resistance (R1max): 0.040 Ω to 15.000 Ω
- Max Time to Trip: 0.02 s to 5.00 s (at specified current)
Features:
- Resettable overcurrent protection
- Surface mount
- Compatible with temperature solders
Applications:
- Motherboards
- Peripherals
Package:
- 1812 surface mount (4.37–4.73 mm x 3.07–3.41 mm)
1812L110/48QR Features
-
for motherboards and peripherals
-
temperature solders
-
protection
-
E183209
-
R50119118
| Part Number | Marking | I hold (A) | I trip (A) | V max (Vdc) | I max (A) | P d typ. | Max.TimeToTrip | Max.TimeToTrip | Resistance | Resistance | Agency Approvals | Agency Approvals |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Part Number | Marking | I hold (A) | I trip (A) | V max (Vdc) | I max (A) | (W) | Current (A) | Time (Sec.) | R min ( Ω ) | R 1max ( Ω ) | ||
| 1812L010 | LF010 | 0.10 | 0.30 | 30 | 100 | 0.8 | 0.50 | 1.50 | 1.600 | 15.000 | X | X |
| 1812L014 | LF014 | 0.14 | 0.34 | 60 | 10 | 0.8 | 1.50 | 0.15 | 1.500 | 6.000 | X | X |
| 1812L020 | LF020 | 0.20 | 0.40 | 30 | 100 | 0.8 | 8.00 | 0.02 | 0.800 | 5.000 | X | X |
| 1812L035/30 | LF035-30 | 0.35 | 0.75 | 30 | 100 | 0.8 | 8.00 | 0.02 | 0.800 | 5.000 | X | X |
| 1812L050 1 | LF050 | 0.50 | 1.00 | 15 | 100 | 0.8 | 8.00 | 0.15 | 0.150 | 1.000 | X | X |
| 1812L050/30 | LF050-30 | 0.50 | 1.00 | 30 | 100 | 0.8 | 8.00 | 0.15 | 0.150 | 1.000 | X | X |
| 1812L075 1 | LF075 | 0.75 | 1.50 | 13.2 | 100 | 0.8 | 8.00 | 0.20 | 0.100 | 0.450 | X | X |
| 1812L075/24 | LF075-24 | 0.75 | 1.50 | 24 | 100 | 0.8 | 8.00 | 0.20 | 0.110 | 0.290 | X | X |
| 1812L075/33 | LF075-33 | 0.75 | 1.50 | 33 | 20 | 0.8 | 8.00 | 0.20 | 0.110 | 0.400 | X | X |
| 1812L110 1 | LF110 | 1.10 | 2.20 | 8 | 100 | 0.8 | 8.00 | 0.30 | 0.040 | 0.210 | X | X |
| 1812L110/16 | LF110-16 | 1.10 | 1.95 | 16 | 100 | 0.8 | 8.00 | 0.30 | 0.060 | 0.180 | X | X |
| 1812L110/24 | LF110-24 | 1.10 | 1.95 | 24 | 20 | 0.8 | 8.00 | 0.50 | 0.060 | 0.200 | X | X |
| 1812L110/33 | LF110-33 | 1.10 | 1.95 | 33 | 20 | 0.8 | 8.00 | 0.50 | 0.060 | 0.200 | X | X |
| 1812L125/6 | LF125-6 | 1.25 | 2.50 | 6 | 100 | 0.8 | 8.00 | 0.40 | 0.050 | 0.140 | X | X |
| 1812L125/16 | LF125 | 1.25 | 2.50 | 16 | 100 | 0.8 | 8.00 | 0.40 | 0.050 | 0.140 | X | X |
| 1812L150 1 | LF150 | 1.50 | 3.00 | 8 | 100 | 0.8 | 8.00 | 0.30 | 0.040 | 0.110 | X | X |
| 1812L150/12 | LF150-12 | 1.50 | 3.00 | 12 | 100 | 0.8 | 8.00 | 0.50 | 0.040 | 0.110 | X | X |
| 1812L150/24 | LF150-24 | 1.50 | 3.00 | 24 | 20 | 0.8 | 8.00 | 1.50 | 0.040 | 0.120 | X | X |
| 1812L160 1 | LF160 | 1.60 | 2.80 | 8 | 100 | 0.8 | 8.00 | 1.00 | 0.030 | 0.100 | X | X |
| 1812L160/12 | LF160-12 | 1.60 | 2.80 | 12 | 100 | 0.8 | 8.00 | 1.00 | 0.030 | 0.100 | X | X |
| 1812L200TH 1 | LF200 | 2.00 | 3.50 | 8 | 100 | 0.8 | 8.00 | 2.00 | 0.020 | 0.070 | X | X |
| 1812L260TH 1 | LF260 | 2.60 | 5.00 | 8 | 100 | 0.8 | 8.00 | 2.50 | 0.015 | 0.047 | X | X |
| 1812L260/12 | LF260-12 | 2.60 | 5.00 | 12 | 100 | 0.8 | 8.00 | 5.00 | 0.015 | 0.055 | X | X |
| 1812L300 | LF300 | 3.00 | 5.00 | 6 | 100 | 0.8 | 8.00 | 4.00 | 0.012 | 0.040 | X | X |
Electrical Characteristics Applications Agency Approvals hold trip V max max max P d min 1max Caution: 1 -C -C www.datasheet.live
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| 1812L035/72GR | — | 1812 |
More part numbers on this datasheet
Their pages show this same datasheet. Some are linked through their part family rather than checked part by part, so confirm the exact part in the ordering information.
Other Passive Components
- 1812L035/72GR – Resettable PTC Fuse
- MF-NSMF020X-2 – Bourns, PPTC Resettable Fuse
- MF2410F0.630TM – AEM, Surface Mount Fuse
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