ATL3 Three-Circuit Mini Blade Fuse (5A–15A, 32V DC)
ATL3 is a three-pole mini blade fuse that combines three independent fuse circuits in a single 14.4 × 4.2 × 18.0 mm housing. Rated 5A to 15A at 32V DC with 1000A interrupt rating. PA66 housing, tin-plated zinc alloy terminals, operating temperature -40°C to +125°C. 2000 pcs per bag.
Get a Quote
Product Concept
The ATL3 series addresses a common design challenge: how to protect three separate low-current circuits without occupying three individual fuse slots. By integrating three independent fuse elements into one mini-blade form factor, ATL3 reduces panel space, simplifies assembly, and lowers component count in automotive junction boxes and aftermarket accessory wiring.
Each of the three poles is electrically independent and rated for its own current, allowing a single fuse block to protect, for example, a 5A interior light, a 10A ECU supply, and a 15A power outlet simultaneously.
Rating & Color Identification
| Pole Color | Rated Current | Voltage Drop | Cold Resistance | I²t |
|---|---|---|---|---|
| Tan | 5A | 116 mV | 17.4 mΩ | 17 A²s |
| Brown | 7.5A | 106 mV | 10.8 mΩ | 47 A²s |
| Red | 10A | 102 mV | 7.8 mΩ | 89 A²s |
| Light Blue | 15A | 94 mV | 4.9 mΩ | 189 A²s |
Electrical Performance
- Rated voltage: 32V DC
- Interrupt rating: 1000A at 32V DC
- Hold characteristic: No opening at 1.1× rated current
- Opening time: 120 seconds minimum at 1.35× rated current; 0.04 seconds at 2× rated current; 0.02 seconds at 3.5× rated current
Physical Construction
- Housing: PA66 nylon, flammability rated UL 94 V-0
- Terminals: Zinc alloy, tin plated
- Body dimensions: 14.4 mm (max width) × 4.2 mm (height) × 18.0 mm (total length)
- Blade contact spacing: 2.54 mm per pole
- Packaging: 2000 pieces per bag
Why Choose ATL3 Over Three Single Fuses?
- Space saving: Three circuits in one 14.4 mm-wide body instead of three separate 9.0 mm fuses
- Fewer insertion points: One fuse block slot instead of three, reducing assembly labor
- Consistent protection: Matched time-current curves across all three poles
- Lower BOM cost: One SKU covers three circuit positions
Typical Applications
- Automotive central junction box (CJB) low-current circuits
- Instrument cluster and body control module (BCM) power distribution
- Aftermarket multi-function accessory harness (LED + radar + dash cam)
- Agricultural equipment and utility vehicle fuse panels
- Industrial low-voltage DC control cabinets
FAQ
1: What is the difference between ATL and ATL3?
ATL is a single-pole mini blade fuse (one circuit per fuse). ATL3 is a three-pole version that combines three independent fuse circuits in one housing. Same 32V DC rating and mini-blade form factor, but ATL3 protects three circuits simultaneously.
2: What amp ratings are available in ATL3?
ATL3 covers 5A (tan), 7.5A (brown), 10A (red), and 15A (light blue). Higher ratings such as 20A and above are not available in the 3-pole configuration.
3: Are the three poles in ATL3 electrically independent?
Yes. Each pole is a separate fuse element with its own rated current and current path. A fault on one circuit does not affect the other two poles.
4: What is the interrupt rating?
1000A at 32V DC per pole, matching standard automotive low-profile blade fuse protection requirements.
5: What is the operating temperature range?
-40°C to +125°C for the tin-plated terminal version, suitable for under-hood and engine compartment installations.
