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STMicroelectronics TPA200RL
- Part No.:
- TPA200RL
- Manufacturer:
- STMicroelectronics
- Category:
- Thyristors
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
TPA200RL.pdf
- Description:
- THYRISTOR 200V 150A DO-204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,376
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Product details
Overview
TPA200RL from STMicroelectronics is a bidirectional Trisil™ thyristor surge protection device in DO-15 package, designed for primary overvoltage crowbar protection on telecom line interfaces. It features 200 V stand-off voltage (VRM), 262 V dynamic breakover voltage (VBO), 50 A repetitive peak pulse current (10/1000 µs), 12 mA minimum holding current (IH), and 25 pF capacitance at 50 V - enabling robust lightning surge suppression in xDSL and T1/E1 line cards without signal integrity degradation.
For engineers reviewing the TPA200RL datasheet, TPA200RL pinout, TPA200RL application, or TPA200RL equivalent, this device serves as a fail-safe short-circuit protector meeting GR-1089 Core Level 1 (2500 V, 500 A), ITU-T K20/K21 (6000 V), and FCC Part 68 Type A/B surge requirements - critical for analog/digital line card design, central office equipment, and UL1459-compliant terminal protection.
Technical Context
TPA200RL operates as a voltage-triggered bidirectional thyristor that latches into low-impedance conduction upon exceeding its dynamic breakover voltage (262 V), sustaining conduction until current falls below 12 mA holding threshold. Its fail-safe short-circuit behavior ensures continued protection even after multiple surges, unlike varistors or TVS diodes.
The device exhibits low 25 pF junction capacitance at 50 V bias and 2 µA max leakage at 180 V reverse, preserving high-frequency signal integrity on telephony lines. Thermal resistance is 100 °C/W (junction-to-ambient, DO-15 with recommended footprint), supporting reliable operation under repeated 50 A pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 200 V - maximum continuous reverse voltage before triggering; sets operating margin for 48 V telecom systems. |
| Dynamic Breakover Voltage (VBO) | 262 V - voltage at which device switches to low-impedance state under 100 V/µs dV/dt; defines precise surge clamping threshold. |
| Repetitive Peak Pulse Current (IPP) | 50 A (10/1000 µs) - withstands telecom-grade lightning surges per GR-1089 and ITU-T K20 without degradation. |
| Holding Current (IH) | 12 mA min - minimum current required to maintain conduction; ensures reliable latch-off during line idle periods. |
| Junction Capacitance (C) | 25 pF @ 50 V - low enough to avoid attenuation of DSL upstream/downstream bands (up to 2.2 MHz). |
| Leakage Current (IRM) | 2 µA max @ 180 V - negligible DC loading on line interface circuits, preserving bias stability. |
Pinout & Package
TPA200RL is housed in a DO-15 axial leaded package (JEDEC standard), with two terminals: Anode (A) and Cathode (K). The device is symmetrical and bidirectional - either terminal may serve as anode or cathode depending on polarity of transient event.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Triggered conduction terminal (bidirectional) | Accepts positive or negative overvoltage transients; initiates crowbar action when voltage exceeds VBO relative to K. |
| Cathode (K) | Triggered conduction terminal (bidirectional) | Reference node for breakover detection; completes low-impedance path to ground or return during surge event. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional crowbar protection | Self-triggering conduction for both polarities eliminates need for back-to-back component placement on AC-coupled lines. |
| Fail-safe short-circuit mode | Latches permanently low-impedance upon end-of-life surge; prevents open-circuit failure that would leave downstream circuitry unprotected. |
| UL497B and UL1459 certification | Validated for telecom surge immunity compliance - reduces qualification effort for FCC Part 68 and GR-1089 certified equipment. |
| UL94 V0 epoxy encapsulation | Flame-retardant housing meets safety standards for enclosed telecom chassis and central office environments. |
Applications
| xDSL Line Cards | T1/E1 Interface Protection |
|---|---|
|
Use Scenario: Protection of ADSL/VDSL line drivers and receivers against induced lightning surges on twisted-pair copper loops. IC Role / Device Role / Timing Role: Primary crowbar protector placed between line transformer secondary and codec IC input. Use Value: 25 pF capacitance avoids insertion loss in 17 MHz VDSL2 band; 50 A surge rating handles worst-case GR-1089 first-level events. |
Use Scenario: Surge hardening of T1/E1 data links in PBX, channel banks, and multiplexers exposed to building-entry transients. IC Role / Device Role / Timing Role: Fail-safe shunt element across balanced pair, triggered by differential-mode surges exceeding ±262 V. Use Value: Bidirectional symmetry enables single-device protection of full-duplex T1 signals without polarity sensitivity or external biasing. |
| Phone/Fax Modem Interfaces | Central Office Line Cards |
|
Use Scenario: Overvoltage protection on POTS line inputs of residential gateways, VoIP adapters, and analog modems. IC Role / Device Role / Timing Role: First-stage protector ahead of SLIC or line interface IC, clamping fast-rising transients from tip/ring wires. Use Value: 2 µA leakage preserves DC loop integrity for off-hook detection; UL497B approval supports FCC Part 68 certification. |
Use Scenario: Robust front-end protection for digital line cards in carrier-class central office switches handling thousands of subscriber lines. IC Role / Device Role / Timing Role: High-reliability crowbar element rated for >100,000 surge events, mounted directly on line card PCB edge connectors. Use Value: DO-15 mechanical robustness and 100 °C/W thermal resistance support long-term operation in high-temperature CO environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional thyristor surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPA220RL | Higher 220 V VRM and 285 V VBO; same DO-15 package and 50 A IPP rating. | Better suited for 56 V nominal systems or designs requiring higher margin above 48 V DC feed. | Select when system operating voltage exceeds 200 V standoff requirement or when tighter VBO tolerance is needed. |
| SMTPA200 | SMB surface-mount package (DO-214AA); identical electrical specs (200 V VRM, 262 V VBO, 50 A IPP). | Enables automated assembly and smaller PCB footprint but requires thermal pad design for 100 °C/W Rth(j-a). | Choose for space-constrained designs where reflow compatibility and board density outweigh through-hole reliability preferences. |
Compared with TPA200RL, TPA220RL offers higher voltage margin for future-proofing 56 V systems, while SMTPA200 delivers identical protection in a surface-mount form factor - enabling trade-offs between manufacturability and mechanical ruggedness without sacrificing surge performance.
Availability
TPA200RL is available at Aetrix Electronics and suitable for xDSL line cards, T1/E1 interface modules, and central office equipment requiring stable component supply, long-lifecycle availability, and traceable sourcing for telecom infrastructure programs.
Supply support for TPA200RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, analog, MEMS, and automotive ICs - with over 40 years of telecom protection device innovation.
TPA200RL belongs to ST's Trisil™ series of bidirectional thyristor surge protectors, engineered specifically for fail-safe, high-reliability overvoltage protection in telecom line interfaces compliant with GR-1089, ITU-T K20/K21, and FCC Part 68.
FAQ
What is the fail-safe behavior of TPA200RL during end-of-life?
TPA200RL fails short-circuit - maintaining low-impedance conduction after excessive surge stress. This ensures downstream circuitry remains protected even if the device degrades, unlike varistors that fail open and leave systems vulnerable. The short-circuit mode is inherent to thyristor physics and verified per UL497B testing.
Can TPA200RL be used in DC-powered telecom systems?
Yes - TPA200RL is rated for 200 V stand-off and supports 48 V DC feed systems common in telecom. Its 2 µA leakage at 180 V ensures minimal impact on loop current, and bidirectional symmetry allows use on both tip and ring lines without polarity concerns. It complies with UL1459 for DC-powered telephone equipment.
How does TPA200RL compare to MOV-based protection in telecom applications?
TPA200RL offers lower capacitance (25 pF vs. 100–500 pF for MOVs), faster response (<100 ns vs. ~500 ns), no aging drift, and guaranteed short-circuit failure mode. MOVs degrade with each surge and exhibit higher leakage over time - making TPA200RL preferable for high-reliability, long-lifecycle telecom line cards where signal integrity and certification consistency are critical.
Is TPA200RL RoHS and REACH compliant?
Yes - TPA200RL is manufactured in STMicroelectronics' ECOPACK®-compliant DO-15 package with lead-free second-level interconnect. It meets RoHS Directive 2011/65/EU and REACH SVHC requirements, with full material declarations available via ST's quality portal and marked on inner box labels per JESD97.
TPA200RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TPA, TRISIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Breakover:
- 267V
- Voltage - Off State:
- 200V
- Voltage - On State:
- -
- Current - Peak Pulse (8/20µs):
- 150 A
- Current - Peak Pulse (10/1000µs):
- 50 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 25pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
TPA200RL FAQ
1.How can I place an order for TPA200RL through Aetrix?
Please submit a Request for Quotation (RFQ) for TPA200RL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPA200RL reliable?
The price and inventory of TPA200RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPA200RL is usually 5 days.
3.What payment methods are accepted for TPA200RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPA200RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPA200RL?
TPA200RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPA200RL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPA200RL?
For technical support, including TPA200RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPA200RL requirements.
6.How does Aetrix verify that TPA200RL is sourced from the original manufacturer or authorized distributors?
All TPA200RL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPA200RL meets industry standards.
7.What is the process for return or replacement of TPA200RL?
All TPA200RL units undergo pre-shipment inspection (PSI). If there is an issue with TPA200RL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPA200RL part is unused and in its original packaging.
Return procedure for TPA200RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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