STMicroelectronics TLP200G
- Part No.:
- TLP200G
- Manufacturer:
- STMicroelectronics
- Category:
- Thyristors
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
TLP200G.pdf
- Description:
- THYRISTOR 100A TO-263-3
- Quantity:
- Payment:

- Shipping:

Inventory:6,629
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Product details
Overview
TLP200G from STMicroelectronics is a tripolar transient surge arrester in D2PAK package, designed for primary overvoltage protection on analog telecom line cards and main distribution frames. It provides crowbar-type protection with 200 V breakover voltage (VBO), 100 A peak pulse current (10/1000 µs), 150 mA holding current (IH), and 110 pF typical capacitance between tip/ring and ground - enabling robust lightning surge suppression per CCITT K20, VDE0433, and IEC-1000-4-5 Level 4 standards.
For engineers reviewing the TLP200G datasheet, TLP200G pinout, TLP200G application, or TLP200G equivalent, key selection criteria include longitudinal/transversal mode surge handling, fail-safe short-circuit behavior after overstress, low leakage (<5 µA), and compatibility with surface-mount telecom line card layouts requiring gas-tube replacement.
Technical Context
The TLP200G operates as a bidirectional thyristor-based crowbar device with three internal electrodes (TIP, RING, GND) forming two symmetrical breakdown paths: TIP–GND and RING–GND. Its triggering mechanism relies on dV/dt-induced avalanche followed by regenerative latching at ≥290 V (min), sustaining conduction until current drops below 150 mA.
It is rated for continuous reverse voltage (VRM) of 180 V and withstands repetitive 100 A surges (10/1000 µs) without degradation. Thermal resistance is 1.0 °C/W junction-to-case, supporting reliable operation up to +85 °C ambient when mounted on FR4 with copper-filled vias or metal-backed substrates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBO (TIP–GND) | 290 V min - ensures reliable triggering above telecom line operating voltages while avoiding false trips during normal ringing (≤120 V). |
| IPP (10/1000 µs) | 100 A - meets CCITT K20 and IEC-1000-4-5 Level 4 surge immunity requirements for primary telecom protection. |
| IH | 150 mA - guarantees sustained conduction during surge events and safe hold-down until line current decays post-surge. |
| C (TIP–GND @ 50 V) | 110 pF typ. - minimizes signal distortion on analog voice lines and preserves bandwidth up to ~1 MHz. |
| IR (max @ VRM) | 5 µA - ensures negligible standby power loss and no interference with SLIC biasing or line monitoring circuits. |
| VRM | 180 V - supports operation across global POTS line standards including -48 V DC feed with ±120 V AC ringing. |
| TOP | -40 to +85 °C - validated for deployment in uncontrolled environments such as outdoor MDF cabinets and central office line cards. |
Pinout & Package
Package: D2PAK (TO-263), surface-mount, single-row 3-terminal configuration with exposed tab connected to GND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TIP | Line conductor (tip side) | One of two symmetrical surge paths; connects to tip wire in analog/ISDN U-interface; triggers crowbar when voltage exceeds VBO relative to GND. |
| RING | Line conductor (ring side) | Second symmetrical surge path; mirrors TIP functionality for balanced line protection; enables transversal-mode surge clamping. |
| GND (Tab) | Reference and return path | Internally tied to substrate backside; serves as common reference for both TIP and RING breakdown; requires low-impedance PCB thermal pad for heat dissipation and ESD return. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe short-circuit failure mode | Guarantees continued protection even after catastrophic surge event - unlike varistors or MOVs that degrade open-circuit. |
| Low 110 pF junction capacitance | Maintains >1 MHz signal fidelity on analog voice lines without attenuating high-frequency components of DTMF or caller ID signals. |
| No ageing or parameter drift | Thyristor structure avoids wear-out mechanisms seen in gas tubes or polymer-based protectors, ensuring stable VBO over 10+ years. |
| Surface-mount D2PAK footprint | Enables automated assembly and eliminates through-hole mounting constraints while delivering 1.0 °C/W thermal resistance to heatsink. |
| Compliance with multiple telecom standards | Validated to CCITT K20, VDE0433, IEC-1000-4-5 Level 4, and FCC Part 68 Type A/B - simplifies certification for global telecom equipment. |
Applications
| Analog Line Card Protection | ISDN U-Interface Protection |
|---|---|
|
Use Scenario: Analog telephone line card in central office or enterprise PBX handling POTS lines with -48 V DC feed and 90 VAC ringing. IC Role / Device Role / Timing Role: Primary surge protector placed upstream of SLIC and line transformer to clamp lightning-induced transients before they reach sensitive analog front-end circuitry. Use Value: Prevents damage to SLIC ICs and line transformers during 4 kV/10/700 µs surges while maintaining <1% THD on voice band signals due to low capacitance. |
Use Scenario: ISDN basic rate interface (BRI) termination unit connecting customer premises equipment to telco network via U-interface (2-wire, full-duplex). IC Role / Device Role / Timing Role: Bidirectional crowbar protecting both transmit and receive paths against longitudinal surges induced on shared tip/ring pair. Use Value: Enables compliance with ITU-T I.430 and EN 300 386 by suppressing 1 kV/10/1000 µs surges without disrupting 144 kbps data transmission integrity. |
| Main Distribution Frame (MDF) | Transmission Equipment Protection |
|
Use Scenario: Outdoor or semi-conditioned MDF cabinet aggregating hundreds of subscriber lines entering central office switch. IC Role / Device Role / Timing Role: First-stage protector mounted on line card backplane or patch panel interface, shunting surge energy to building earth ground. Use Value: Survives repeated 100 A surges per CCITT K20, eliminating need for periodic replacement required by gas tubes or carbon blocks. |
Use Scenario: DSLAM line cards or remote terminal units exposed to induced surges from adjacent power lines or lightning strikes on nearby poles. IC Role / Device Role / Timing Role: Secondary protection element downstream of gas tube or spark gap, providing fast-response clamping for residual transients. Use Value: Reduces let-through voltage to <300 V within 100 ns, preventing latch-up in ADSL transceivers and preserving bit error rate under surge stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar tripolar telecom surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLP200G-1 | I2PAK package (smaller footprint, lower thermal mass); identical electrical specs (VBO = 290 V, IH = 150 mA, C = 110 pF). | Better suited for space-constrained ISDN terminal units; slightly reduced thermal derating (Rth j-a higher than D2PAK on same board). | Select when PCB real estate is limited and peak power dissipation remains <1.5 W. |
| TLP270G | Higher VBO (400 V min); same IPP (100 A), IH (150 mA), and C (110 pF); optimized for higher-voltage xDSL or broadband access lines. | Required for systems with >200 V ringing or hybrid AC/DC line feeds; not suitable for standard POTS where lower VBO prevents nuisance tripping. | Choose only if line voltage envelope exceeds 200 V peak; otherwise risk failure to trigger during 1 kV surges. |
Compared with TLP200G-1, the D2PAK-packaged TLP200G offers superior thermal performance (1.0 °C/W j-c) for high-reliability MDF deployments, while TLP270G trades lower surge sensitivity for higher voltage tolerance - making TLP200G the optimal balance for legacy analog and ISDN infrastructure.
Availability
TLP200G is available at Aetrix Electronics and suitable for analog line cards, ISDN U-interface modules, and main distribution frame protection requiring stable component supply, long-lifecycle support, and certified telecom-grade surge immunity.
Supply support for TLP200G 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, and automotive ICs with vertical manufacturing capability and AEC-Q100 qualified processes.
The TLPxxG series belongs to ST's Application-Specific Discretes (A.S.D.) portfolio, engineered specifically for telecom line protection with fail-safe thyristor architecture, replacing aging gas-tube solutions in carrier-grade infrastructure.
FAQ
What is the recommended PCB layout for thermal reliability of TLP200G?
Mount the D2PAK tab directly to a minimum 6 cm² copper pour connected via ≥16 copper-filled vias (0.7 mm diameter, 1.8 mm pitch) to an internal ground plane. This achieves ≤12 °C/W junction-to-ambient thermal resistance, enabling 5.8 W continuous dissipation per ST's thermal characterization data.
Does TLP200G require external current limiting resistors in series with the line?
No - TLP200G is designed for direct connection between tip/ring and system ground. Its 150 mA holding current ensures self-extinguishing behavior once line current falls below this threshold after surge decay; adding series resistance would impair crowbar speed and increase let-through voltage.
Can TLP200G be used for Ethernet port protection?
No - its 110 pF capacitance and crowbar action are incompatible with 100BASE-TX signaling (100 MHz bandwidth, ±2.5 V differential swing). It is specified exclusively for POTS, ISDN, and narrowband telecom interfaces operating below 200 kHz.
How does TLP200G behave after a 100 A surge event?
After a single 100 A/10/1000 µs surge, TLP200G remains fully functional with unchanged VBO and IH. If overstressed beyond rating, it fails short-circuit - maintaining protection continuity rather than opening like a fuse or degrading like a varistor.
TLP200G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Series:
- TLP
- Packaging:
- Tube
- Product Status:
- Obsolete
- Voltage - Breakover:
- 290V
- Voltage - Off State:
- -
- Voltage - On State:
- -
- Current - Peak Pulse (8/20µs):
- -
- Current - Peak Pulse (10/1000µs):
- 100 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 110pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
TLP200G FAQ
1.How can I place an order for TLP200G through Aetrix?
Please submit a Request for Quotation (RFQ) for TLP200G 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 TLP200G reliable?
The price and inventory of TLP200G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLP200G is usually 5 days.
3.What payment methods are accepted for TLP200G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLP200G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLP200G?
TLP200G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLP200G 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 TLP200G?
For technical support, including TLP200G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLP200G requirements.
6.How does Aetrix verify that TLP200G is sourced from the original manufacturer or authorized distributors?
All TLP200G 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 TLP200G meets industry standards.
7.What is the process for return or replacement of TLP200G?
All TLP200G units undergo pre-shipment inspection (PSI). If there is an issue with TLP200G, 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 TLP200G part is unused and in its original packaging.
Return procedure for TLP200G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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