TR - High Voltage Thick Film Planar Resistor | Vishay
MPN: TR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for TR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesTR Maximum Ratings & Electrical Characteristics
| Product Series | TR |
| Manufacturer | Vishay Intertechnology |
| Technology | Thick Film |
| Construction | Planar |
| Mounting Type | Through-Hole |
| Application Focus | High Voltage |
| RoHS Status | Compliant |
| REACH Status | Compliant |
| Halogen Free | Yes |
TR standard Pin Configuration Guide
Complete pinout information for TR (standard package). Learn about pin numbering, functions, and connection diagrams. Refer to the manufacturer datasheet for exact footprint and soldering guidelines. Common applications include circuit design and PCB assembly.
No detailed pinout data available for TR.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TR is suitable for 6 applications: High Voltage Power Supplies, Transformer Circuits, Industrial High Voltage Environments, Capacitor Bleeder and Balancing, Voltage Divider and Measurement Chains, Medical and X-ray HV Sections.
High Voltage Power Supplies
The TR series is explicitly intended for power supplies operating in high voltage environments, per the Vishay product page. In HV power supplies it serves as a bleeder resistor across the DC output to discharge filter capacitors when the unit is off, as a divider feeding a voltage-monitor feedback signal, and as a damping element in snubber networks. The thick film planar element withstands the sustained kilovolt-level stress that would cause surface flashover on conventional axial resistors. Designers should verify the specific resistance and voltage rating encoded in the full part number and provide adequate PCB creepage distance around the through-hole terminals so board leakage does not become the failure mode.
Recommended
Transformer Circuits
Transformers are listed by Vishay as a primary application for the TR series. In transformer circuits the resistor is placed across windings or between high potential points where standard resistors would arc over: as a bleeder across a secondary winding, as a load for regulation testing, or as part of an RC snubber controlling voltage spikes from leakage inductance. The planar thick film geometry maintains a long surface path between terminals, so the full working voltage of the winding can appear across the part without breakdown. Power dissipation and voltage rating must both be checked against the datasheet because transformer spikes can momentarily exceed nominal winding voltage.
Recommended
Industrial High Voltage Environments
Vishay states the TR series suits any application requiring operation in a high voltage environment. Typical industrial examples include electrostatic equipment, HV motor control, ionization and precipitation systems, and high voltage test instrumentation. In these settings the resistor may see continuous working voltages of hundreds of volts to kilovolts, humidity, and vibration - conditions the through-hole planar construction tolerates better than SMD alternatives due to mechanical lead strength and extended creepage. Validation responsibility remains with the customer: per the datasheet, performance may vary across applications and over time, so qualification testing under the real environmental profile is recommended.
Recommended
Capacitor Bleeder and Balancing
In series capacitor banks, equal resistors balance the DC voltage across each capacitor and provide a safe discharge path; high voltage series resistors of the TR class are well suited to this duty because the voltage across each element is a substantial fraction of the bank voltage. Sizing is a direct trade-off: lower resistance discharges faster (t = RC) but burns continuous power P = VΒ²/R, so engineers typically choose the highest resistance that meets the discharge-time safety requirement. Because the TR series is a coded family, select the ordering code whose resistance, tolerance, and voltage rating satisfy both the timing and thermal limits documented in the Vishay datasheet.
Recommended
Voltage Divider and Measurement Chains
High impedance voltage dividers built from series-connected high voltage resistors scale kilovolt bus voltages down to the input range of ADCs, voltmeters, and isolation amplifiers. The TR series planar construction suits the top-of-chain elements that see the largest share of the voltage. For accuracy, the divider ratio depends on resistance tolerance and temperature coefficient, so the specific ordering code's tolerance class matters; using multiple resistors in series also distributes the voltage stress and reduces the field across any single element. Verify long-term stability data in the Vishay datasheet, since divider drift directly translates into measurement error over the product lifetime.
Recommended
Medical and X-ray HV Sections
High voltage generators in X-ray and medical imaging equipment use planar high voltage resistors in multiplier stacks, divider probes, and bleeder networks, and the TR series' stated high voltage environment coverage extends to this domain. Here the combination of high working voltage, continuous duty, and stringent safety requirements makes component qualification critical: the resistor must hold its value and withstand the field over thousands of hours. The through-hole planar format also simplifies conformal coating and inspection compared with dense SMD HV networks. Per the Vishay datasheet, the customer is responsible for validating suitability for the particular application, which in medical equipment includes full system-level risk management.
Recommended
Recommended Products Summary
Engineering reference data for TR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | Through-hole planar body ([DATA_NEEDED: dimensions]) |
| Brand | Vishay Intertechnology |
| Technology | Thick Film Planar |
| Mounting Type | Through-Hole |
| Application Focus | High Voltage |
| Resistance Range | [DATA_NEEDED] |
| Power Rating | [DATA_NEEDED] |
| RoHS Status | Compliant |
Key Differentiators
- Planar creepage-optimized construction for high voltage service (vs Generic axial thick film resistors)
- Through-hole mechanical robustness (vs SMD high voltage chip resistors)
- Compliance-ready construction (vs Legacy HV resistor types)
Design Notes
For high voltage planar resistors, board creepage often fails before the component does. Provide wide copper keep-outs around both terminals, and for working voltages above several hundred volts route a slot in the PCB between or beneath the terminals to extend the surface path. Keep the board area under the component body clean and free of flux residue; conformal coating is strongly recommended in humid environments to suppress surface leakage currents that cause drift and corona.
Estimated: dissipation in a bleeder or divider resistor is P = VΒ²/R and is continuous duty, so verify the specific ordering code's power rating and its derating curve in the Vishay TR datasheet before finalizing resistance values. Voltage-limited operation is common in HV planar parts - the permissible dissipation may fall as working voltage rises. Provide airflow or copper-free clearance per the mechanical drawing and allow the part to run below its derating knee for long-term stability.
Do not treat 'TR' as a complete part number - it is a series designation and the full ordering code encodes resistance, tolerance, and packaging. Vishay explicitly states in the datasheet that customers must validate suitability for a particular application and that parameters may vary in different applications and performance may vary over time. Ordering by the bare series name is the most common procurement error for this family.
Compliance Information
Distributor documentation (Mouser, SEI TR series datasheet) states RoHS compliant, REACH compliant, and halogen free. Because the TR designation spans multiple manufacturers, confirm compliance certificates for the exact Vishay ordering code before release.
