MOS1/2CT52R101J KOA Speer Resistor (Resistors, Axial Diameter Horizontal Mounting) In Stock
KOA Speer MOS1/2CT52R101J is a flame-proof axial-leaded metal oxide resistor with 100 Ω resistance, 5% tolerance, and 1/2 W power rating. Tubular through-hole construction measures 6.2 mm length and 2.5 mm diameter with 0.6 mm leads. Available from authorized distributors with worldwide shipping.
- Manufacturer
- KOA Speer
- Package
- Resistors, Axial Diameter Horizontal Mounting
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- MOS1/2CT52R101J Datasheet PDF
- Category
- Resistor
- Temp Range
- -55.0°C to 235.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Flame-proof tubular construction provides safety protection in circuits subject to overload or fault conditions
- 100 Ω, 5% tolerance, 1/2 W rating in a compact 6.2 mm × 2.5 mm axial through-hole body for general-purpose applications
- RoHS-compliant with JESD-609 e2 lead-free designation, suitable for environmentally compliant manufacturing
Applications
MOS1/2CT52R101J is used in power supplies, motor controllers, and general-purpose circuit boards where a 100 Ω, 1/2 W flame-proof axial resistor is required for current limiting, pull-up, or load functions. Its flame-proof rating makes it a preferred choice in consumer appliances, HVAC control boards, and industrial equipment where component failures must not propagate to fires. The through-hole axial format suits prototyping, low-volume production, and applications where through-hole mounting improves mechanical robustness.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 6 |
| Additional Feature | FLAME PROOF |
| Construction | Tubular |
| JESD-609 Code | e2 |
| Lead Diameter | 0.6mm |
| Mounting Feature | THROUGH HOLE MOUNT |
| Package Diameter | 2.5mm |
| Package Length | 6.2mm |
| Package Style | Axial |
| Packing Method | TR |
| Rated Power Dissipation (P) | 0.5W |
| Rated Temperature | 70°C |
| Reference Standard | IEC60115-4 |
| Resistance | 100Ω |
| Resistor Type | FIXED RESISTOR |
| Surface Mount | NO |
| Technology | METAL OXIDE FILM |
| Temperature Coefficient | 300ppm/°C |
| Terminal Finish | TIN COPPER |
| Terminal Shape | WIRE |
| Tolerance | 5% |
| Working Voltage | 7.0711V |
| Package | Resistors, Axial Diameter Horizontal Mounting |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.21.00.90 |
| Country of Origin | Japan, Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What resistance, tolerance, and power rating does MOS1/2CT52R101J provide?
MOS1/2CT52R101J provides a 100 Ω resistance with 5% tolerance and a 1/2 W (0.5 W) power rating. This combination suits general-purpose current-limiting, pull-up, and load resistor functions in circuits operating at low to moderate current levels, where a 5% tolerance is acceptable and 0.5 W dissipation is sufficient.
Why is the flame-proof rating of MOS1/2CT52R101J important in consumer and industrial designs?
The flame-proof construction of MOS1/2CT52R101J ensures that if the resistor is subjected to a sustained overload beyond its 1/2 W rating, it fails open rather than igniting. This safety characteristic is required by IEC 60065, UL, and similar standards for consumer electronics, HVAC controllers, and industrial equipment where a burning component could cause property damage or injury.
What are the physical dimensions of MOS1/2CT52R101J and how do they affect PCB layout?
MOS1/2CT52R101J has a tubular package that is 6.2 mm long and 2.5 mm in diameter, with 0.6 mm lead wire diameter. These dimensions require a through-hole PCB footprint with lead holes spaced to match the body length, and the 2.5 mm body diameter sets minimum keep-out spacing from adjacent tall components in horizontal mounting configurations.
Is MOS1/2CT52R101J a suitable through-hole alternative to an SMD 0805 resistor at the same resistance value?
MOS1/2CT52R101J can replace an SMD 0805 resistor at 100 Ω when through-hole mounting is preferred for mechanical strength or during prototype hand-assembly, but its 1/2 W rating exceeds the typical 1/8 W rating of a standard 0805. The axial form factor also adds component height, making it unsuitable for low-profile boards; an SMD alternative is preferred in space-constrained or fully automated SMT lines.
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