Guangdong Uchi Electronics Co.,Ltd
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China,Dongguan ,Guangdong
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- Precision Low-Resistance Component Shunt Measurement And Range Extension
- Product Details
- Company Details
Product Specification
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| Payment Terms |
T/T,Paypal,Western Union,Money gram |
Supply Ability |
5000,000,000PCS Per Month |
| Delivery Time |
5-7 days |
Packaging Details |
Bulk/Ammo/Reel |
| Low Voltage |
E10=1.5~60V |
Tmax |
5.7 |
| Capacitance Range |
1pF-1000pF |
Lenghth |
Ф25mm |
| Impulse Life |
300 Times |
Lead Wire |
Tinning copper wire) |
| Packing |
SMD Reel Packaging |
External Dimensions |
5650 [2220],5.6x5.0mm |
| Istorage Temperature |
-55℃ ~ +125℃ |
Termination Style |
Screw |
| Weight |
7.1g |
Moisture Barrier |
Epoxy Resin |
| Warranty |
2year |
Surge Energy Rating |
28J |
| Dissipation Factor |
≤0.2 |
Brand Name |
UCHI |
| Model Number |
UL.VDE,SGS,REACH,CQC,CSA.ISO.ROHS,CUL |
Place of Origin |
Dongguan，Guangdong,China |
| High Light |
low-resistance component shunt
，precision measurement shunt
，metal oxide varistor shunt
|
Shunt
A shunt has different meanings in various fields. The most common is a precision low-resistance component in the electronics and power industry, used for high-current measurement and range extension.
I. Electronics / Power Industry (Most Common)
1. Core Definition and Principle
- Nature: A low-resistance, high-precision power resistor (in milliohm/microohm scale).
- Principle: Connected in series in the measured circuit. A high current produces a millivolt-level voltage drop (U=I×R), and the current is calculated indirectly by measuring the voltage.
- Typical specifications: Rated voltage drop is mostly 75mV/100mV. For example, 100A/75mV corresponds to a resistance of 0.75mΩ.
2. Main Applications
- High-current measurement: Used with millivoltmeters / multimeters to measure high DC current (from dozens to tens of thousands of amperes).
- Range extension: Connected in parallel with a low-range ammeter to shunt most of the current, allowing only a small portion to pass through the meter.
- Current sampling: Used for current monitoring and protection in BMS, motor control, power supplies, charging piles, and energy storage systems.
3. Key Parameters and Selection
- Rated current: Ranges from 5A to 15kA.
- Rated voltage drop: 60mV, 75mV, 100mV, 150mV, etc.
- Accuracy: 0.1%, 0.2%, 0.5%, 1%, etc.
- Material: Usually manganin alloy (low temperature coefficient, good stability).
- Heat dissipation: High-current applications require good heat dissipation to prevent accuracy loss due to temperature rise.
4. Advantages and Disadvantages
- Advantages: Simple structure, low cost, high DC accuracy, suitable for high currents.
- Disadvantages: Voltage drop loss, heat generation, non-isolated, and accuracy affected by reactance at high frequencies.
II. “Shunt” in Other Fields
1. Network Shunt (Traffic Replication / Load Balancing)
Copies / forwards network traffic for monitoring, auditing, intrusion detection, and load balancing.
2. Hydraulic / Pneumatic Shunt
Distributes fluid evenly to multiple outputs, used in hydraulic systems and lubrication systems.
3. Faucet Shunt (Household)
One-inlet, multi-outlet water splitter with independent switches, used for washing machines, showers, etc.
III. Usage Notes
- Must be connected in series in the measured circuit.
- Rated current should be higher than the actual maximum current (20% margin recommended).
- Secure wiring to reduce contact resistance; four-wire connection is recommended for high-precision measurement.
- Pay attention to heat dissipation to avoid overheating.
- Mainly used for DC or low-frequency AC; use with caution in high-frequency applications.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
-
Business Type:
Manufacturer,Exporter
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Total Annual:
1,500,000-2,500,000
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Employee Number:
138~168
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Ecer Certification：
Verified Supplier
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