Mini Blade Automotive Fuse 32V DC ATM APM Color Coded Fuse
Micro mini maxi blade fuses, 32V DC ATM APM 2A‑30A color coded, with full I²t data for car, RV and marine circuit protection, RoHS compliant, OEM marking available.
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Micro mini maxi blade fuses of ATM / APM standard are compact plug-in circuit protection components engineered for 32V DC automotive low-voltage systems. Covering ampere ratings from 2A to 30A with industry color-coded housing, this mini blade fuse delivers stable and repeatable time-current melting performance. Full engineering datasets including cold resistance and minimum melting I²t values are provided to support wiring harness simulation, BMS verification and vehicle protection loop calculation, widely used for short-circuit and over-current protection in passenger vehicles, RV, marine equipment and aftermarket wiring harness projects.</p>
. Covering ampere ratings from 2A to 30A with industry color-coded housing, this mini blade fuse delivers stable and repeatable time-current melting performance. Full engineering datasets including cold resistance and minimum melting I²t values are provided to support wiring harness simulation, BMS verification and vehicle protection loop calculation, widely used for short-circuit and over-current protection in passenger vehicles, RV, marine equipment and aftermarket wiring harness projects.
Key Features & Benefits
- Industry standard ATM / APM mini blade footprint, compatible with mainstream mini blade fuse holders
- Rated voltage: 32V DC, continuous current range: 2A ~ 30A
- Color-coded insulating housing for rapid visual identification of current rating
- Complete electrical engineering data: cold resistance and minimum melting I²t (A²s) supplied
- Consistent time-current characteristic, meeting automotive fuse protection requirements
- Miniature outline, suitable for dense layout inside automotive fuse boxes and wiring harness assemblies
- Superior vibration and temperature cycling tolerance to adapt to harsh vehicle operating environments
- RoHS compliant; bulk supply, OEM custom marking and private labeling available
Typical Application Scenarios
- Passenger car, SUV and light truck interior & exterior lighting circuits
- Automotive infotainment, instrument cluster and auxiliary electronic control modules
- RV and camper 12V–24V low-voltage DC power distribution protection
- Marine and boat onboard DC wiring harness protection
- Vehicle modification projects and mass-production automotive wiring harness
- Small off-grid DC auxiliary circuit protection
Time‑Current Blow‑Time Characteristic
| Testing Current | Minimum Blow Time | Maximum Blow Time |
|---|---|---|
| 110% In | — | 100 h |
| 135% In | 0.75 s | 1800 s |
| 200% In | 0.15 s | 5 s |
| 350% In | 0.08 s | 0.25 s |
Electrical Parameter Specification Table
| Rated Current | Rated Voltage | Color Code | Cold Resistance mΩ | Min Melting I²t(A²s) |
|---|---|---|---|---|
| 2A | 32V DC | Gray | 53~57 | 6.2 |
| 3A | 32V DC | Purple | 31~35 | 9.4 |
| 4A | 32V DC | Pink | 22~26 | 17 |
| 5A | 32V DC | Tan | 19~21 | 25 |
| 7.5A | 32V DC | Coffee | 10.8~11.5 | 68 |
| 10A | 32V DC | Red | 9.1~9.8 | 93 |
| 15A | 32V DC | Blue | 4.5~5.1 | 270 |
| 20A | 32V DC | Yellow | 3.9~4.1 | 380 |
| 25A | 32V DC | Natural | 3.4~3.6 | 625 |
| 30A | 32V DC | Green | 2.6~2.8 | 1130 |
Installation & Engineering Guidelines
- Maximum rated working voltage is 32V DC. Do not apply to circuits exceeding this rating.
- Use together with matched ATM / APM mini blade fuse holder to ensure stable contact performance.
- Replace fuse only after fault elimination; never use higher-rated fuse for bypass protection.
- Designed to withstand temperature variation inside vehicle cabins and engine compartments.
- For mass production projects, confirm full datasheet and test report before formal order release.
FAQ
Q: Which fuse holder fits this mini blade automotive fuse?
A: It matches standard ATM / APM mini blade fuse holders, not compatible with ATO, ATC or micro blade fuse sockets.
Q: What is the rated voltage of ATM APM mini blade fuse?
A: Rated voltage 32V DC, mainly used for 12V and 24V automotive DC circuits.
Q: What is the purpose of I²t and cold resistance parameters?
A: I²t and cold resistance data support wiring harness simulation, BMS design and vehicle protection system engineering calculation.
Q: Can you provide OEM custom marking service?
A: OEM custom logo and marking are available for large-volume orders, send your drawing and requirement for evaluation.
Q: Can I get test samples and full datasheet?
A: Yes, send inquiry to apply for engineering samples and complete PDF datasheet.
Get Quotation & Technical Support
Please inform us required amp ratings, quantity and application such as automotive wiring harness, RV or marine system. Our application engineer will reply within 24 working hours.
