TT Electronics WRM0204C-160RFI MELF resistor with plated steel caps and low thermal impedance rating
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
Product Description
MELF Resistors WRM Series
The WRM Series MELF resistors from TT Electronics are designed for high reliability and defined pulse handling capability. They are AEC-Q200 qualified and available with tolerances down to 0.1% and TCRs down to 5ppm/C. All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3). These resistors feature a metal film deposited on a high dissipation ceramic former, adjusted by a helical cut, and protected by a lacquer coating. They are suitable for various applications requiring precise resistance values and stability.
Product Attributes
- Brand: TT Electronics
- Certifications: AEC-Q200 qualified, EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
- Material: Metal film on ceramic former, plated steel cap terminations
- Color: Body protection and marking are resistant to industrial cleaning solvents
Technical Specifications
| Type | Power rating @70C (W) | Resistance range (ohms) | Limiting element voltage (V) | TCR (ppm/C) | Resistance tolerance (%) | Thermal impedance (C/W) | Zero-ohm jumper current rating (A) | Zero-ohm jumper maximum residual resistance (m) |
| WRM0102 | 0.2 | 1R0 1M0 | 200 | 15, 25, 50, 100 | 0.1, 0.25, 0.5, 1, 5 | 250 | 2 | 15 |
| WRM0204 | 0.25 | R22 5M1 | 250 | 5, 10, 15, 25, 50, 100 | 0.1, 0.25, 0.5, 1, 5 | 200 | 4 | 15 |
| WRM0207 | 0.4 | R22 4M7 | 250 | 15, 25, 50, 100 | 0.1, 0.25, 0.5, 1, 5 | 140 | 4 | 15 |
Performance Data
| Test | R/R (0102) | R/R (0204 & 0207) |
| Short time overload | 0.05% + R01 | 0.1% + R01 |
| Bending test | 0.15% + R05 | 0.3% + R05 |
| Resistance to soldering heat | 0.25% + R05 | 0.5% + R05 |
| Temperature rapid change | 0.25% + R05 | 0.5% + R05 |
| Endurance (load life) 1000 hrs | 0.15% + R05 | 0.3% + R05 |
| Endurance (load life) 8000 hrs | 0.3% + R05 | 0.6% + R05 |
| Endurance (load life) 225,000 hrs | 0.9% + R05 | 1.8% + R05 |
| Climatic sequence | 0.25% + R05 | 0.5% + R05 |
| Damp heat steady state | 0.25% + R05 | 0.5% + R05 |
| Current noise | ||
| Solderability | >95% coverage | >95% coverage |
| Voltage coefficient | 0 to -0.5ppm/V | |
| Voltage proof | No flashover or breakdown | |
Physical Data
| Type | L max (mm) | D max (mm) | D1 max (mm) | K min (mm) | L1 min (mm) | Wt. nom. (g) |
| WRM0102 | 2.3 | 1.35 | 1.3 | 0.3 | 1.1 | 0.01 |
| WRM0204 | 3.7 | 1.55 | 1.55 | 0.5 | 1.5 | 0.02 |
| WRM0207 | 6.1 | 2.4 | 2.4 | 0.5 | 2.9 | 0.08 |
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina