H8100RBBA TE Connectivity, H8100RBBA Datasheet - Page 6

• Manufacturer Part Number: H8100RBBA
• Manufacturer: TE Connectivity
• Series: H8r

Specifications of H8100RBBA

• Product Type: Fixed Resistor
• Resistor Type: Precision Resistor
• Element: Thin Film
• Termination Type: Tinned Copper Leads
• Resistance (?): 100
• Power Rating (w): 0.25
• Tolerance (%): 0.1
• Package Type: Bandoliered
• Mount Style: Axial Leaded
• Package, Component Size: 7.2 x 2.5
• Number Of Terminations: 2
• Number Of Resistors: 1
• Rohs/elv Compliance: RoHS compliant, ELV compliant
• Lead Free Solder Processes: Wave solder capable to 240°C, Wave solder capable to 260°C, Wave solder capable to 265°C
• Rohs/elv Compliance History: Always was RoHS compliant
• Temperature Coefficient (ppm/°c): ±10
• Application: Precision

6
TE Connectivity
Elevator and Escalator Drive Circuits
te.com/industry/commercial-building-technology
Pre-Charge Resistor
This is used on system start up to charge the DC
coupling capacitor. The resistor limits the inrush
current during charging of the DC coupling capacitor.
This capacitor sits across the DC voltage source to
keep the line voltage constant when the input voltage
drops low. The resistor must be able to absorb high
energy from a single pulse, over a short time.
Capacitor Discharge Resistor
The resistor is fitted across the capacitor terminals
to provide a safety function. When the voltage to
the capacitor is removed, the resistor discharges any
residual voltage in the capacitor making it safe to
touch. The resistor must handle continuous power as
long as it is connected to a voltage source.
Braking Resistor
The resistor is used in a variable speed drive
to absorb the energy created when the motor
decelerates quickly. These can be fitted internally
or externally to the drive. The rate that the motor
decelerates is controlled by the amount of energy
dumped into the resistor. During the braking cycle
(deceleration) lots of little pulses of energy are
dissipated by the resistor over a short period of time.
Balancing Resistor
The resistor is used to balance the voltage across
critical components (such as IGBTs) when they
are connected in series. This is to ensure that each
component has equal voltage stress during operation.
3 Phase AC Input
Power Filtering
EMI / RFI
Balancing
Resistor
Rectifier
DC Coupling
Capacitor
Pre Charge
Resistor
Discharge
Capacitor
Resistor
Switching
Circuit
Brake
Resistor
Braking
Braking
Current Sense
Switch
Resistor
DC Bus
Current Sense Resistor
A low ohmic resistor creates a small voltage drop in
the circuit. As the current in the circuit changes the
voltage drop will vary. The change in voltage drop
is used to measure the current to or from the circuit.
This current can be monitored allowing an action in
the control software.
Snubber Resistor
The resistor is used to absorb transient high voltage
spikes produced by switching a solid state switch (like
relays, IGBTs, GTOs, etc.). It is connected in series
with a capacitor across the switch. These switching
operations can be very high frequency therefore
the resistor must have a low inductance, so that the
transient spike is not transferred back into the switch.
RFI / EMI Power Filters
Filters are an integral part of EMC design of a
product. They are used to attenuate conducted
noise leaving the system and lower susceptibility
of the equipment to incoming power line noise. RFI
is conducted through a power line in two modes:
asymmetric (common mode) line to ground or
symmetric (differential mode) line to line.
Solutions for Elevators and Escalators
Inverter
Snubber
Resistor
Circuit
Drive
Motor
IGBT
Gate
Load
Balancing
Resistor