参数资料
| 型号： | CRM2512-FX-R300ELF |
| 厂商： | Bourns Inc. |
| 文件页数： | 1/3页 |
| 文件大小： | 0K |
| 描述： | RES .300 OHM 2W 1% 2512 SMD |
| 标准包装： | 1 |
| 系列： | CRM2512 |
| 电阻（欧姆）： | 0.3 |
| 功率（瓦特）： | 2W |
| 复合体： | 厚膜 |
| 特点： | 电流感应，脉冲耐受 |
| 温度系数： | ±100ppm/°C |
| 容差： | ±1% |
| 封装/外壳： | 2512（6432 公制） |
| 尺寸/尺寸： | 0.248" L x 0.122" W（6.30mm x 3.10mm） |
| 高度： | 0.032"（0.80mm） |
| 端子数： | 2 |
| 包装： | 标准包装 |
| 其它名称： | CRM2512-FX-R300ELFDKR |
Features
■ Thick ?lm technology
■ Power rating of 2 watts at 70 °C
Applications
■ Power supplies
■ Stepper motor drives
■ RoHS compliant*
CRM2512 - Pulse Resistant Power Resistor
Electrical Characteristics
General Information
Characteristic
Power Rating @ 70 °C
Operating Temp. Range
Derated to Zero Load at
Maximum Working Voltage
Model
CRM2512
(0.110 to 0.91 Ω)
1349 mV
Model
CRM2512
(0 Ω, 1.0 Ω to 1.0 M Ω)
2W
-55 °C to +155 °C
+155 °C
300 V
The Bourns ? CRM2512 Series is a
thick- ?lm power resistor with a rating of
2 watts in a standard 2512 chip format.
This product has a very wide resistance
range making it suitable for different
applications in power supply circuits
including current sensing and inrush
current limiting.
Maximum Overload Voltage
Insulation Resistance
2698 mV
> 1000 M Ω
600 V
Characteristic Data
Resistance Range
Resistance Tolerance
Temperature Coef?cient
0.110 - 0.91 Ω
(E24 Values)
±1 % & ±5 %
±100 PPM/°C
0 Ω,
1.0 - 1 M Ω
(E24 Values)
±5 %
±200 PPM/°C
1 Ω - 9.1 Ω
(E24 Values)
10 Ω - 1 M Ω
(E96 Values)
±1 %
±100 PPM/°C
Test
Load Life (1000 hours)
1 % Tolerance
5 % Tolerance
Short Term Overload
Δ R Max.
<1%
<3%
Notes:
(1) CRM2512 2 W loading with total solder pad and trace size of 300 mm 2 .
(2) E = (PxR) 1/2
E: Working Voltage (V); P: Rated Power (W); R: Resistance Value ( Ω )
(3) Jumper (0 Ω ): Rated current 6 A maximum with 300 mm 2 pad.
Soldering Pro?le
250
Peak 260 +5/-0 °C
230 °C or higher
1 % Tolerance
5 % Tolerance
Thermal Shock
1 % Tolerance
5 % Tolerance
Product Dimensions
6.3 ± 0.20
(0.248 ± 0.008)
TOP SIDE
<1%
<2%
< 0.5 %
<1%
3.1 ± 0.20
(0.122 ± 0.008)
200
180 °C
Pre-heating Zone
150
100
50
150 °C
90 ± 30 seconds
30 ± 10 seconds
Heating Time
Soldering Zone
0.6 ± 0.20
(0.024 ± 0.008)
1.8 ± 0.20
(0.070 ± 0.008)
0.6 ± 0.20
(0.024 ± 0.008)
Recommended Solder Pad Layout
Derating Curve
100
7.6
(.299)
2.45
(.096)
3.7
(.146)
-55
70
155
Ambient Temperature (°C)
DIMENSIONS:
MM
(INCHES)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Speci?cations are subject to change without notice.
Users should verify actual device performance in their speci?c applications.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
相关PDF资料 |
PDF描述 |
|---|---|
| P6SMB8.2AT3G | TVS ZENER UNIDIR 600W 8.2V SMB |
| ISL28117FUZ-T7 | IC OPAMP GP 1.5MHZ LP 8MSOP |
| P6SMB75AT3G | TVS ZENER UNIDIR 600W 75V SMB |
| XC5B-4421 | CONNECTR 44POS STRAIGHT TERM DIN |
| P6SMB82AT3G | TVS ZENER UNIDIR 600W 82V SMB |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CRM2512-FX-R300ELF | 制造商:Bourns Inc 功能描述:RESISTOR THICK FILM 0.3OHM 2W 1% |
| CRM2512-FX-R330ELF | 功能描述:厚膜电阻器 - SMD CHIP RESISTOR - Low Value RoHS:否 制造商:Bourns 电阻:1.5 Ohms 容差:1 % 功率额定值:25 W 电压额定值:250 V 外壳代码 - in: 外壳代码 - mm: 端接类型:SMD/SMT 温度系数:100 PPM / C 系列:PWR163 工作温度范围:- 55 C to + 155 C 封装:Tube |
| CRM2512-FX-R390ELF | 功能描述:RES 0.39 OHM 1% 2W 2512 制造商:bourns inc. 系列:CRM2512 包装:带卷（TR） 零件状态:在售 电阻值:390 mOhms 容差:±1% 功率（W）:2W 成分:厚膜 特性:电流检测 温度系数:±100ppm/°C 工作温度:-55°C ~ 155°C 封装/外壳:2512（6432 公制） 供应商器件封装:2512 大小/尺寸:0.248" 长 x 0.122" 宽（6.30mm x 3.10mm） 高度 - 安装（最大值）:0.032"（0.80mm） 端子数:2 故障率:- 标准包装:4,000 |
| CRM2512-FX-R430ELF | 功能描述:厚膜电阻器 - SMD CHIP RESISTOR - Low Value RoHS:否 制造商:Bourns 电阻:1.5 Ohms 容差:1 % 功率额定值:25 W 电压额定值:250 V 外壳代码 - in: 外壳代码 - mm: 端接类型:SMD/SMT 温度系数:100 PPM / C 系列:PWR163 工作温度范围:- 55 C to + 155 C 封装:Tube |
| CRM2512-FX-R470ELF | 功能描述:厚膜电阻器 - SMD CHIP RESISTOR - Low Value RoHS:否 制造商:Bourns 电阻:1.5 Ohms 容差:1 % 功率额定值:25 W 电压额定值:250 V 外壳代码 - in: 外壳代码 - mm: 端接类型:SMD/SMT 温度系数:100 PPM / C 系列:PWR163 工作温度范围:- 55 C to + 155 C 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。