MICROTEMP G5A01121C Thermal Cutoff Fuse 16A 250V 121°C UL VDE CCC Certified
Price:
Negotiable
MOQ:
1000 Pieces
Delivery Time:
7-10 Workdays
Brand:
AMPFORT
Product Description
MICROTEMP G5A01121C Thermal Cutoff Fuse
The MICROTEMP G5A01121C is a compact, globally certified one-shot thermal cutoff fuse designed for reliable upper limit temperature protection. This 16A 250V thermal fuse interrupts electrical circuits when temperatures exceed the rated 121°C threshold, preventing overheating damage in various applications.
Product Specifications
Rated Current: 16A
Rated Voltage: 250V
Functioning Temperature: 121°C
Fusing-off Temperature: 118±2°C
Temperature Range: 72°C to 240°C
Performance Data
| Model NO. | Tf(℃) | Fusing-off Temp(℃) | Th(℃) | Tm(℃) | Ir(A) | Ur(V) |
|---|---|---|---|---|---|---|
| BF73X | 73 | 70±2 | 58 | 200 | 16 | 250 |
| BF77X | 77 | 74±2 | 62 | 300 | 16 | 250 |
| BF84X | 84 | 82±2 | 69 | 300 | 16 | 250 |
| BF94X | 94 | 90±2 | 79 | 300 | 16 | 250 |
| BF99X | 99 | 95±2 | 84 | 300 | 16 | 250 |
| BF104X | 104 | 101+2/-3 | 90 | 210 | 16 | 250 |
| BF113X | 113 | 110±2 | 98 | 400 | 16 | 250 |
| BF117X | 117 | 114±2 | 102 | 400 | 16 | 250 |
| BF121X | 121 | 118±2 | 106 | 400 | 16 | 250 |
| BF133X | 133 | 131+2/-3 | 119 | 400 | 16 | 250 |
| BF142X | 142 | 138+2/-3 | 127 | 400 | 16 | 250 |
| BF157X | 157 | 155±2 | 142 | 400 | 16 | 250 |
| BF172X | 172 | 169+2/-3 | 157 | 400 | 16 | 250 |
| BF184X | 184 | 181±2 | 169 | 400 | 16 | 250 |
| BF192X | 192 | 189±2 | 177 | 400 | 16 | 250 |
| BF216X | 216 | 212±2 | 191 | 450 | 16 | 250 |
| BF229X | 229 | 226±2 | 201 | 450 | 16 | 250 |
| BF240X | 240 | 235±3 | 201 | 450 | 16 | 250 |
| BF257X | 257 | 254±2 | 200 | 470 | 16 | 250 |
Physical Dimensions
Length (a): 20±1.0mm
Width (b): 11±1.0mm
Height (c): 35±1.0mm
Lead Diameter (d): Ф1.0±0.1mm
Body Diameter (e): Ф4.0±0.1mm
Terminal Diameter (f): Ф1.0±0.1mm
Certifications & Approvals
UL/CUL, VDE, and CCC certified for global compliance and safety standards.
Key Features
- Current interrupt capacity: 16A at 250VAC
- Functioning temperature range: 72°C to 240°C
- Available in cut, formed or terminated leads
- Mounted and potted options available
- One-shot operation for permanent circuit protection
- Low resistance design
- Compact size for space-constrained applications
Applications
Industrial equipment, safety systems, portable devices, and consumer electronics requiring reliable thermal protection.
Operating Principle
The thermal cutoff utilizes a specially formulated nonconductive pellet that holds spring-loaded contacts closed during normal operation. When the predetermined temperature threshold is reached, the pellet melts, allowing the compression spring to relax and slide the contact away from the lead, permanently opening the circuit. Once activated, the thermal fuse must be replaced to restore circuit functionality.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dongguan Ampfort Electronics Co., Ltd.
Location
Floor 5,Changlong Industrial Building,No.6,Jiangnan Road,Jingshan,Chashan Town,Dongguan 523323,China
Contact Person
Annie Fang