GF‑C40B SMD Automotive Blade Fuse Holder | 1‑50A 250VDC Mini/Medium/Standard
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GF‑C40B SMD Automotive Blade Fuse Holder | 1‑50A 250VDC, Mini/Medium/Standard Blade, UL94V0
The GF‑C40B is an SMD (surface‑mount) automotive blade fuse holder manufactured by EssFuse. Specifically, it accepts automotive mini, medium, and standard blade fuses in one surface‑mount package, rated from 1A to 50A at 12V–250V DC. The housing uses PBT and PA66 thermoplastic meeting UL94 V‑0, while contacts are tin‑plated brass. Furthermore, its surface‑mount terminals allow high‑speed SMT assembly lines without hand soldering. Therefore, this SMD fuse holder is widely used in automotive electronics, BMS boards, and industrial power supply designs where automated placement and compact board space are critical.
Product Overview
Core Design Purpose
The GF‑C40B combines three blade‑fuse sizes (mini, medium, standard) into a single SMD package. Besides, the surface‑mount design eliminates through‑hole drilling, saving PCB area and enabling automated placement on standard SMT lines. It targets high‑volume automotive and industrial electronics manufacturing.
Electrical Performance
Notably, the holder supports 12V to 250V DC and 1A to 50A. Insulation resistance exceeds 10,000 MΩ at 500V DC. As a result, it maintains reliable isolation even at the upper end of the voltage range. The tin‑plated brass contacts keep contact resistance low under continuous load.
Environmental & Material
The PBT + PA66 housing meets UL94 V‑0 flammability. Moreover, the operating temperature range of ‑40°C to 125°C covers both under‑hood automotive and industrial temperature extremes. The SMD terminals are designed for standard reflow profiles.
Key Features & Benefits
Core Advantages
- ✅ SMD surface‑mount design — high‑speed SMT assembly, no hand soldering
- ✅ Accepts automotive mini, medium, AND standard blade fuses (3 sizes in one body)
- ✅ Rated voltage: 12V to 250V DC
- ✅ Rated current: 1A to 50A
- ✅ Housing: PBT + PA66, UL94 V‑0 flame retardant
- ✅ Contacts: Tin‑plated brass
- ✅ Insulation resistance: ≥10,000 MΩ @ 500V DC
- ✅ Operating temperature: ‑40°C to 125°C
- ✅ Compact 19.81mm x 13.47mm footprint
- ✅ Brand: EssFuse / GFEFUSE (Dongguan GongFu Electronic)
Main Electrical & Mechanical Ratings
Specification Summary
| Item | Specification |
|---|---|
| Model | GF‑C40B |
| Product Type | SMD Surface‑Mount Automotive Blade Fuse Holder |
| Compatible Fuses | Automotive Mini, Medium, and Standard Blade Fuses |
| Rated Voltage | 12V to 250V DC |
| Rated Current | 1A to 50A |
| Housing Material | PBT + PA66, UL94 V‑0 |
| Contact Material | Tin‑Plated Brass |
| Insulation Resistance | ≥ 10,000 MΩ @ 500V DC |
| Operating Temperature | ‑40°C to +125°C |
| Overall Length | 19.81 ± 0.25mm |
| Body Width | 13.47 ± 0.15mm |
| Mounting Style | SMD Surface Mount |
Mechanical Dimensions
Drawing (mm)
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Solutions We Provide
Application Solutions
1. High‑Volume Automotive SMT Production
For automotive Tier‑1 electronics makers, the GF‑C40B is designed for standard SMT pick‑and‑place lines. Specifically, the surface‑mount terminals eliminate through‑hole wave solder steps. Furthermore, accepting three fuse sizes in one body reduces SKU management for contract manufacturers.
2. BMS & Power Supply Board Miniaturization
In BMS, EV charger, and industrial power supply boards, the GF‑C40B saves valuable PCB real estate. As a result, designers can place a replaceable fuse directly next to protected semiconductors. Therefore, trace length and parasitic inductance are minimized.
3. Customization & SMT Support
EssFuse provides the recommended SMT land pattern and tape‑and‑reel packaging for high‑volume lines. In addition, we supply matching mini, medium, and standard blade fuses. Contact sales for the stencil guide and free samples.
Typical Applications
Use Cases
- Automotive ECU / BCM surface‑mount fuse protection
- Battery management system (BMS) SMD fuse holder
- EV charger and DC‑DC converter PCB protection
- Industrial power supply and UPS board
- Home energy storage battery management board
- Smart meter and industrial control SMT assembly
Customer Questions & Answers
Real Customer Questions
1: Is this a true SMD part or through‑hole?
A: It is a true surface‑mount (SMD) component. The terminals reflow onto PCB pads; no through‑hole drilling is required. We provide the recommended SMD land pattern and stencil design guide on request.
2: Which fuse sizes does it accept?
A: It accepts three automotive blade fuse sizes: mini, medium (ATO/ATC), and standard (MAXI / large). This versatility reduces the number of holder SKUs a designer needs to stock.
3: Does it survive reflow soldering?
A: Yes. The PBT+PA66 UL94V0 housing and tin‑plated brass terminals are designed for standard reflow profiles. Share your exact temperature profile with our engineering team for high‑temperature process confirmation.
4: What is the maximum current?
A: 50A. For continuous operation in enclosed SMT boards, derate to 70–80% (35–40A) to control board temperature. The 125°C operating limit already reflects a conservative design margin.
5: How does it compare to through‑hole holders?
A: SMD mounting saves board space, eliminates wave solder, and suits high‑volume pick‑and‑place lines. Through‑hole holders (like GF‑717C / GF‑718B) offer higher mechanical robustness for hand‑serviceable designs. Choose SMD for high volume, through‑hole for field serviceability.
6: Do you supply matching fuses?
A: Yes. We manufacture GFEFUSE mini, medium (GF‑B series), and standard blade fuses that all mate with this holder. Sourcing both from EssFuse guarantees insertion force and contact compatibility.
7: Is it RoHS compliant?
A: Yes. Tin‑plated terminals and UL94V0 thermoplastic are RoHS compliant. REACH and full material declarations are available on formal request.
Download Datasheet & Get Quotation
👉 Download GF‑C40B SMD Blade Fuse Holder GF-C40B pcb Blade fuse holder
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