Datasheet > RO78BF2A502

RO78BF2A502

更新时间： 2024-09-08 18:44:23

品牌	Logo	应用领域
威世 - VISHAY		电阻器
页数	文件大小	规格书
3页	334K
描述
RESISTOR, POTENTIOMETER, CONDUCTIVE PLASTIC, 1 TURN(S), 0.3 W, 5000 ohm, ROHS COMPLIANT

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RO78BF2A502 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8533.40.80.70	风险等级：	5.83
执行器方向：	HORIZONTAL	执行器类型：	SHAFT
其他特性：	PRECISION	帮派号码：	2
安装特点：	CHASSIS MOUNT	端子数量：	6
转弯数量：	1	最高工作温度：	125 °C
最低工作温度：	-55 °C	封装形状：	CIRCULAR PACKAGE
额定功率耗散 (P)：	0.3 W	额定温度：	70 °C
电阻：	5000 Ω	电阻定律：	LINEAR
电阻器类型：	POTENTIOMETER	表面贴装：	NO
技术：	CONDUCTIVE PLASTIC	端子形状：	BINDING POST
容差：	10%	Base Number Matches：	1

RO78BF2A502 数据手册

Series ROT/BF

Vishay Sfernice

Precision Rotative Transducers,

Conductive Plastic, Bushing Mounting

FEATURES

• Size 08 to 30

• Linearity ꢀ ꢁ down to 0.05 ꢁ

• Good repeatability

RoHS

COMPLIANT

• Long life

• Essentially infinite resolution

• Up to 6 electrical functions with the same shaft

• On request custom design to meet your specifications

• Following MIL-R-39023 and NFC 93-255 requirements

A complete range of bushing mounting rotational motion

transducers.

SIZE

MODEL

34 BF

78 BF

ꢀꢀ6 BF

ꢀ56 BF

ꢀ76 BF

ꢀ34 BF

200 BF

300 BF

ELECTRICAL SPECIFICATIONS

Functions

Theoretical Electrical Angle (TEA)

Linear, on request specific law

Actual electrical angle (AEA) - 2°

C ≤ 0.25 ꢁ

A ≤ ꢀ ꢁ

C ≤ 0.25 ꢁ

B ≤ 0.5 ꢁ

Down to D ≤ 0.ꢀ ꢁ

Independent Linearity (over TEA)

Best Linearity Available

Down to E ≤ 0.05 ꢁ

Actual Electrical Angle (AEA)

Ohmic Values (R_T)

340° 3°

350° 2°

ꢀ kΩ

2 kΩ

5 kΩ

ꢀ0 kΩ - on request other values

Ohmic Value Tolerances at 20 °C

Output Smoothness

ꢀ0 ꢁ

≤ 0.05 ꢁ

≤ 0.025 ꢁ

Maximum Power Rating at 70 °C

Wiper Current

0.25 W

0.3 W

0.4 W

0.5 W

0.75 W

ꢀ.0 W

ꢀ.2 W

ꢀ.5 W

Recommended: a few µA - ꢀ mA max. (continuous)

{ Position: 2°

Tap (Current or Voltage)

On Request with Angular Position to be Specified

U = current

/ T = voltage Position: 2°

{ Width: ≤ 4°

min. ꢀ0³x R_T

≤ 0.02 ꢁ

Load Resistance on Wiper (R_L)

Repeatability

End Voltage

≤ 0.4 ꢁ for 470 Ω ≤ R_T≤ ꢀ000 Ω / ≤ 0.2 ꢁ for ꢀ000 Ω < R_T≤ 2200 Ω / ≤ 0.ꢀ ꢁ for R_T> 2200 Ω

≥ ꢀ000 MΩ, 500 V_DC

Insulation Resistance

Dielectric Strength

≥ 750 V_RMS, 50 Hz

≥ ꢀ000 V_RMS, 50 Hz

MECHANICAL SPECIFICATIONS

Mechanical Rotation

Mounting Type

Shaft Guiding

Shaft

360° continuous; stops on request

Bushing

Sleeve bearings; on request ball bearings

Stainless steel

Housing

Plastic moulding; on request anodized aluminum

Turrets; on request flexible leads, cables...

Precious metal multi-finger contact

Termination

Wiper

Starting Torque (N.cm)

Moment of Inertia (g. cm²)

≤ 0.5 ꢀ cup; ≤ 0.3 for each additional cup

0.3

ꢀꢀ

0.4

0.6

2ꢀ

0.8

ꢀ4

2.2

ꢀ6

2.8

ꢀ8

3.5

2ꢀ

ꢀ0

ꢀ cup

Weight (g)

ꢀ20 ꢀ0

62 ꢀ0

each additional cup

PERFORMANCE

Life (Million of Cycles)

Temperature Range

Climatic Category

≥ 20

- 55 °C to + ꢀ25 °C

55/ꢀ25/04

ꢀ50

Rotation Speed (RPM)

www.vishay.com

For technical questions, contact: sfer@vishay.com

Document Number: 54005

Revision: 22-Mar-07

12 3

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