类别是'category.通孔电阻器' (10000)
- 所有品牌
对比 | 图片 | 产品型号 | 品牌 | 数据表 | 库存 | 价格(含增值税) | 数量 | Rohs | 工厂交货时间 | 触点镀层 | 安装类型 | 包装/外壳 | 端子形状 | 供应商器件包装 | 质量 | 终端数量 | 厂商 | Operating Temperature (Max) | Operating Temperature (Min) | Rated Power Dissipation | 操作温度 | 包装 | 已出版 | 系列 | 尺寸/尺寸 | 容差 | JESD-609代码 | 无铅代码 | 零件状态 | 湿度敏感性等级(MSL) | 终止次数 | 终端 | ECCN 代码 | 温度系数 | 类型 | 电阻 | 组成 | 功率(瓦特) | HTS代码 | 子类别 | 技术 | 结构 | 电阻器类型 | 军用标准 | 终端样式 | 引线长度 | 工作电压 | 失败率 | 铅直径 | 尺寸代码 | 端子类型 | 特征 | 瓦特 | 产品长度(mm) | 直径 | 高度 | 座位高度(最大) | 长度 | 宽度 | 产品高度(mm) | 辐射硬化 | 达到SVHC | RoHS状态 | 无铅 | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | EW412 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | NTE ELECTRONICS INC | 3.7 mm | 5.59 | Bag | 活跃 | NTE Electronics | EW412 | Axial Lead | 0.125 W | Axial | 活跃 | 1.6 mm | -55°C ~ 155°C | - | 0.063" Dia x 0.146" L (1.60mm x 3.70mm) | ±2% | 2 | EAR99 | ±200ppm/°C | 120 kOhms | 金属氧化膜 | 0.125W, 1/8W | 固定电阻器 | METAL OXIDE FILM | Flameproof | 固定电阻 | 1.18 | 150 V | - | 0.016 | Axial Leads | Flame Proof, Safety | 0.125 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||||
![]() | HW616 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | NTE ELECTRONICS INC | 9.5 mm | 5.6 | Bag | 活跃 | Axial Lead | HW616 | NTE Electronics | 0.5 W | Axial | 活跃 | 3.5 mm | -55°C ~ 155°C | - | 0.138" Dia x 0.374" L (3.50mm x 9.50mm) | ±2% | 2 | EAR99 | ±200ppm/°C | 16 MOhms | 金属氧化膜 | 0.5W, 1/2W | 固定电阻器 | METAL OXIDE FILM | Flameproof | 固定电阻 | 1.18 | 350 V | - | 0.032 | Axial Leads | Flame Proof, Safety | 0.5 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||||
![]() | 2W030 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | NTE ELECTRONICS INC | 15.5 mm | 5.59 | Bag | 活跃 | Axial Lead | 2W030 | NTE Electronics | 2 W | Axial | 活跃 | 5.6 mm | -55°C ~ 200°C | - | 0.220" Dia x 0.610" L (5.60mm x 15.50mm) | ±2% | 2 | EAR99 | ±200ppm/°C | 30 Ohms | 金属氧化膜 | 2W | 固定电阻器 | METAL OXIDE FILM | Flameproof | 固定电阻 | 1.18 | 500 V | - | 0.032 | Axial Leads | Flame Proof, Safety | 2 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||||
![]() | 1W415 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 通孔 | Axial | Axial | 2 | NTE Electronics, Inc | 200 °C | -55 °C | 4 mm | NTE ELECTRONICS INC | 11.8 mm | 5.6 | Bag | 活跃 | Axial Lead | 1W415 | 1 W | NTE Electronics | Non-Compliant | Axial, | Axial | 活跃 | -55°C ~ 200°C | - | 0.154" Dia x 0.465" L (4.00mm x 11.80mm) | ±2% | 2 | Axial | EAR99 | ±200ppm/°C | 150 kOhms | 金属氧化膜 | 1W | 固定电阻器 | METAL OXIDE FILM | Flameproof | 固定电阻 | 1.18 | 500 V | - | 0.032 | Axial Leads | Flame Proof, Safety | 1 | - | unknown | |||||||||||||||||||||||||||||||||||||||
![]() | 10WD43 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | NTE Electronics, Inc | Bag | 活跃 | Axial Lead | 10WD43 | NTE Electronics | 活跃 | NTE ELECTRONICS INC | 5.71 | -55°C ~ 155°C | - | 0.380" Square x 1.890" L (9.65mm x 48.00mm) | ±5% | 2 | ±300ppm/°C | 430 mOhms | Wirewound | 10W | 1.5 | - | 0.036 | Axial Leads | - | 10 | - | unknown | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | 25W039 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 通孔 | Axial | Axial | 18.143695 g | 2 | NTE Electronics, Inc | 155 °C | -55 °C | 63.5 mm | 5.6 | 12.5 mm | Bag | 活跃 | Axial Lead | 25W039 | NTE Electronics | 25 W | Compliant | Axial | 12.5 mm | 活跃 | NTE ELECTRONICS INC | -55°C ~ 155°C | - | 0.492" Square x 2.50" L (12.50mm x 63.50mm) | ±5% | 2 | Axial | EAR99 | ±300ppm/°C | 39 Ohms | Wirewound | 25W | 8533.21.00.80 | 固定电阻器 | 钢丝缠绕 | Power | 固定电阻 | 1.5 | 800 V | - | 0.04 | 49 | Axial Leads | - | 25 | 12.7 mm | - | 127 mm | 12.7 mm | unknown | |||||||||||||||||||||||||||||||||
![]() | F1W168 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | NTE ELECTRONICS INC | 9.5 mm | 5.74 | Bag | 活跃 | NTE Electronics | F1W168 | Axial Lead | 1 W | Axial | 活跃 | 3.4 mm | -55°C ~ 200°C | - | 0.135" Dia x 0.375" L (3.43mm x 9.52mm) | ±5% | 2 | ±200ppm/°C | 680 Ohms | - | 1W | 保险丝电阻器 | METAL OXIDE FILM | Fusible | FIXED RESISTOR - FUSIBLE | 1.3 | - | 0.027 | Axial Leads | Fusible, Safety | 1 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||||||
![]() | F1W210 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | 活跃 | 3.4 mm | NTE ELECTRONICS INC | 9.5 mm | 5.74 | 活跃 | Bag | NTE Electronics | F1W210 | 1 W | Axial Lead | Non-Compliant | Axial | -55°C ~ 200°C | - | 0.135" Dia x 0.375" L (3.43mm x 9.52mm) | ±5% | 2 | EAR99 | ±200ppm/°C | 1 kOhms | - | 1W | 保险丝电阻器 | METAL OXIDE FILM | Fusible | FIXED RESISTOR - FUSIBLE | 1.3 | - | 0.027 | Axial Leads | Fusible, Safety | 1 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||||
![]() | 10W018 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | NTE Electronics, Inc | 活跃 | Bag | Axial Lead | 10W018 | NTE Electronics | 活跃 | NTE ELECTRONICS INC | 5.71 | -55°C ~ 155°C | - | 0.380" Square x 1.890" L (9.65mm x 48.00mm) | ±5% | 2 | ±300ppm/°C | 18 Ohms | Wirewound | 10W | 1.5 | - | 0.036 | Axial Leads | - | 10 | - | unknown | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | 10W012 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 通孔 | Axial | Axial | NTE Electronics, Inc | 155 °C | -55 °C | Bag | 活跃 | Axial Lead | 10W012 | NTE Electronics | 550 V | Non-Compliant | 活跃 | NTE ELECTRONICS INC | 5.69 | -55°C ~ 155°C | - | 0.380" Square x 1.890" L (9.65mm x 48.00mm) | ±5% | 2 | Axial | ±300ppm/°C | 12 Ohms | Wirewound | 10W | 1.5 | - | 0.036 | Axial Leads | - | 10 | - | unknown | ||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | 2W611 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | NTE Electronics, Inc | Bag | 活跃 | Axial Lead | 2W611 | NTE Electronics | Non-Compliant | 活跃 | NTE ELECTRONICS INC | 5.71 | -55°C ~ 200°C | - | 0.220" Dia x 0.610" L (5.60mm x 15.50mm) | ±2% | 2 | ±200ppm/°C | 11 MOhms | 金属氧化膜 | 2W | 1.5 | - | 0.032 | Axial Leads | Flame Proof, Safety | 2 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | 1W062 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | Axial | 活跃 | 4 mm | NTE ELECTRONICS INC | 11.8 mm | 5.61 | Bag | 活跃 | Axial Lead | 1 W | 1W062 | NTE Electronics | Non-Compliant | Axial, | -55°C ~ 200°C | - | 0.154" Dia x 0.465" L (4.00mm x 11.80mm) | ±2% | 2 | EAR99 | ±200ppm/°C | 62 Ohms | 金属氧化膜 | 1W | 固定电阻器 | METAL OXIDE FILM | Flameproof | 固定电阻 | 1.18 | 500 V | - | 0.032 | Axial Leads | Flame Proof, Safety | 1 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||
![]() | 1W1D6 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 通孔 | Axial | Axial | 2 | NTE Electronics, Inc | 200 °C | -55 °C | 3.9 mm | NTE ELECTRONICS INC | 10.8 mm | 5.6 | Bag | 活跃 | NTE Electronics | 1W1D6 | 1 W | Axial Lead | Non-Compliant | Axial, | Axial | 活跃 | -55°C ~ 200°C | - | 0.154" Dia x 0.425" L (3.90mm x 10.80mm) | ±5% | 2 | Axial | EAR99 | ±200ppm/°C | 1.6 Ohms | 金属氧化膜 | 1W | 固定电阻器 | METAL OXIDE FILM | Flameproof | 固定电阻 | 1.375 | 350 V | - | 0.027 | Axial Leads | Flame Proof, Safety | 1 | - | unknown | |||||||||||||||||||||||||||||||||||||||
![]() | 5WRD50 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 通孔 | Axial | Axial | NTE Electronics, Inc | 250 °C | -65 °C | NTE Electronics | Compliant | Bag | 活跃 | Axial Lead | 5WRD50 | -65°C ~ 250°C | - | 0.312" Dia x 1.000" L (7.92mm x 25.40mm) | ±5% | 2 | Axial | ±90ppm/°C | 500 mOhms | Wirewound | 5W | 1.5 | - | 0.04 | Axial Leads | - | 5 | - | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | 1W115 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | Axial | 活跃 | 4 mm | NTE ELECTRONICS INC | 11.8 mm | 5.58 | Bag | 活跃 | Axial Lead | 1 W | 1W115 | NTE Electronics | 无 | Axial, | -55°C ~ 200°C | - | 0.154" Dia x 0.465" L (4.00mm x 11.80mm) | ±2% | 2 | EAR99 | ±200ppm/°C | 150 Ohms | 金属氧化膜 | 1W | 固定电阻器 | METAL OXIDE FILM | Flameproof | 固定电阻 | 1.18 | 500 V | - | 0.032 | Axial Leads | Flame Proof, Safety | 1 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||
![]() | F1W022 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | 活跃 | 3.4 mm | NTE ELECTRONICS INC | 9.5 mm | 5.74 | Bag | 活跃 | Axial Lead | F1W022 | 1 W | NTE Electronics | Non-Compliant | Axial | -55°C ~ 200°C | - | 0.135" Dia x 0.375" L (3.43mm x 9.52mm) | ±5% | 2 | EAR99 | ±200ppm/°C | 22 Ohms | - | 1W | 保险丝电阻器 | METAL OXIDE FILM | Fusible | FIXED RESISTOR - FUSIBLE | 1.3 | - | 0.027 | Axial Leads | Fusible, Safety | 1 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||||
![]() | 25W047 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 通孔 | Axial | Axial | 2 | NTE Electronics, Inc | 155 °C | -55 °C | 12.5 mm | 活跃 | NTE ELECTRONICS INC | 63.5 mm | 5.6 | 12.5 mm | Bag | 活跃 | Axial Lead | 25 W | 25W047 | NTE Electronics | 800 V | Compliant | Axial | -55°C ~ 155°C | - | 0.492" Square x 2.50" L (12.50mm x 63.50mm) | ±5% | 2 | Axial | EAR99 | ±300ppm/°C | 47 Ohms | Wirewound | 25W | 8533.21.00.80 | 固定电阻器 | 钢丝缠绕 | Power | 固定电阻 | 1.5 | 800 V | - | 0.04 | 49 | Axial Leads | - | 25 | - | unknown | ||||||||||||||||||||||||||||||||||||
![]() | 2W136 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | NTE Electronics, Inc | Bag | 活跃 | Axial Lead | 2W136 | NTE Electronics | 活跃 | NTE ELECTRONICS INC | 5.7 | -55°C ~ 200°C | - | 0.220" Dia x 0.610" L (5.60mm x 15.50mm) | ±2% | 2 | ±200ppm/°C | 360 Ohms | 金属氧化膜 | 2W | 1.18 | - | 0.032 | Axial Leads | Flame Proof, Safety | 2 | - | unknown | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | 25W122 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 通孔 | Axial | Axial | 40.823313 g | 2 | NTE Electronics, Inc | 155 °C | -55 °C | 活跃 | NTE ELECTRONICS INC | 63.5 mm | 5.6 | 12.5 mm | Bag | 活跃 | Axial Lead | 25W122 | 25 W | NTE Electronics | 800 V | Compliant | Axial | 12.5 mm | -55°C ~ 155°C | - | 0.492" Square x 2.50" L (12.50mm x 63.50mm) | ±5% | 2 | Axial | ±300ppm/°C | 220 Ohms | Wirewound | 25W | 固定电阻器 | 钢丝缠绕 | Power | 固定电阻 | 1.5 | 800 V | - | 0.04 | 49 | Axial Leads | - | 25 | 12.7 mm | - | 76.2 mm | 12.7 mm | unknown | ||||||||||||||||||||||||||||||||||
![]() | HWD11 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | NTE ELECTRONICS INC | 9.5 mm | 5.58 | Bag | 活跃 | Axial Lead | HWD11 | NTE Electronics | 0.5 W | Axial | 活跃 | 3.5 mm | -55°C ~ 155°C | - | 0.138" Dia x 0.374" L (3.50mm x 9.50mm) | ±5% | 2 | EAR99 | ±100ppm/°C | 110 mOhms | 金属氧化膜 | 0.5W, 1/2W | 固定电阻器 | METAL OXIDE FILM | Flameproof | 固定电阻 | 1.02 | 300 V | - | 0.032 | Axial Leads | Flame Proof, Safety | 0.5 | - | unknown | |||||||||||||||||||||||||||||||||||||||||||||
![]() | 25W1D5 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | NTE Electronics, Inc | 活跃 | NTE ELECTRONICS INC | 63.5 mm | 5.6 | 12.5 mm | Bag | 活跃 | Axial Lead | 25W1D5 | 25 W | NTE Electronics | Axial | 12.5 mm | -55°C ~ 155°C | - | 0.492" Square x 2.50" L (12.50mm x 63.50mm) | ±5% | 2 | EAR99 | ±300ppm/°C | 1.5 Ohms | Wirewound | 25W | 8533.21.00.80 | 固定电阻器 | 钢丝缠绕 | Power | 固定电阻 | 1.5 | 800 V | - | 0.04 | 49 | Axial Leads | - | 25 | - | unknown | ||||||||||||||||||||||||||||||||||||||||||
![]() | 25W4D7 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 通孔 | Axial | Axial | 22.679619 g | 2 | NTE Electronics, Inc | 155 °C | -55 °C | 63.5 mm | 5.6 | 12.5 mm | Bag | 活跃 | Axial Lead | 25W4D7 | NTE Electronics | 25 W | Compliant | Axial | 12.5 mm | 活跃 | NTE ELECTRONICS INC | -55°C ~ 155°C | - | 0.492" Square x 2.50" L (12.50mm x 63.50mm) | ±5% | 2 | Axial | ±300ppm/°C | 4.7 Ohms | Wirewound | 25W | 固定电阻器 | 钢丝缠绕 | Power | 固定电阻 | 1.5 | 800 V | - | 0.04 | 49 | Axial Leads | - | 25 | 6.35 mm | - | 127 mm | 6.35 mm | unknown | |||||||||||||||||||||||||||||||||||
![]() | 25W110 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 通孔 | Axial | Axial | 27.215542 g | NTE Electronics, Inc | 155 °C | -55 °C | Axial Lead | 25W110 | NTE Electronics | 800 V | 800 V | Compliant | Bag | 活跃 | -55°C ~ 155°C | - | 0.492" Square x 2.50" L (12.50mm x 63.50mm) | ±5% | 2 | Axial | ±300ppm/°C | 100 Ohms | Wirewound | 25W | 1.5 | - | 0.04 | Axial Leads | - | 25 | 12.7 mm | - | 76.2 mm | 12.7 mm | 无SVHC | ||||||||||||||||||||||||||||||||||||||||||||||||
![]() | 25W2D2 | NTE Electronics, Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | Axial | Axial | 2 | 活跃 | Axial Lead | 25W2D2 | NTE Electronics | Not Required(mm) | NTE Electronics, Inc | 12.5(mm) | -55C to 155C | Molded | Not Required(mm) | NO | 5% | 25(W) | Axial | 12.5 mm | 活跃 | NTE ELECTRONICS INC | 63.5 mm | 5.6 | 12.5 mm | 25 W | Bag | -55°C ~ 155°C | - | 0.492" Square x 2.50" L (12.50mm x 63.50mm) | ±5% | 2 | EAR99 | ±300ppm/°C | Wirewound | 2.2 Ohms | Wirewound | 25W | 8533.21.00.80 | 固定电阻器 | 钢丝缠绕 | Rectangular | 固定电阻 | 不需要 | Axial | 1.5 | 800 V | - | 0.04 | 49 | Axial Leads | - | 25 | 63.5(mm) | - | 12.5(mm) | unknown | |||||||||||||||||||||||||||||
![]() | CF14JT300R | Stackpole Electronics Inc | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 20 Weeks | Tin | Axial, Through Hole | Axial | WIRE | 250mW | -55°C~155°C | Tape & Reel (TR) | 2010 | CF | 0.091Diax0.236L 2.30mmx6.00mm | ±5% | e3 | yes | 活跃 | 1 (Unlimited) | 2 | EAR99 | 0/ -400ppm/°C | 300Ohm | 碳膜 | 0.25W 1/4W | 8533.10.00.65 | Tubular | 固定电阻 | Not | 350V | Flame Retardant Coating, Safety | 2.3mm | 无 | ROHS3 Compliant | 无铅 |
EW412
NTE Electronics, Inc
分类:Through Hole Resistors
HW616
NTE Electronics, Inc
分类:Through Hole Resistors
2W030
NTE Electronics, Inc
分类:Through Hole Resistors
1W415
NTE Electronics, Inc
分类:Through Hole Resistors
10WD43
NTE Electronics, Inc
分类:Through Hole Resistors
25W039
NTE Electronics, Inc
分类:Through Hole Resistors
F1W168
NTE Electronics, Inc
分类:Through Hole Resistors
F1W210
NTE Electronics, Inc
分类:Through Hole Resistors
10W018
NTE Electronics, Inc
分类:Through Hole Resistors
10W012
NTE Electronics, Inc
分类:Through Hole Resistors
2W611
NTE Electronics, Inc
分类:Through Hole Resistors
1W062
NTE Electronics, Inc
分类:Through Hole Resistors
1W1D6
NTE Electronics, Inc
分类:Through Hole Resistors
5WRD50
NTE Electronics, Inc
分类:Through Hole Resistors
1W115
NTE Electronics, Inc
分类:Through Hole Resistors
F1W022
NTE Electronics, Inc
分类:Through Hole Resistors
25W047
NTE Electronics, Inc
分类:Through Hole Resistors
2W136
NTE Electronics, Inc
分类:Through Hole Resistors
25W122
NTE Electronics, Inc
分类:Through Hole Resistors
HWD11
NTE Electronics, Inc
分类:Through Hole Resistors
25W1D5
NTE Electronics, Inc
分类:Through Hole Resistors
25W4D7
NTE Electronics, Inc
分类:Through Hole Resistors
25W110
NTE Electronics, Inc
分类:Through Hole Resistors
25W2D2
NTE Electronics, Inc
分类:Through Hole Resistors
CF14JT300R
Stackpole Electronics Inc
分类:Through Hole Resistors
