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Diodes Incorporated TB1800M-13
- Part No.:
- TB1800M-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
TB1800M-13.pdf
- Description:
- THYRISTOR 160V 250A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TB1800M-13 from Diodes Incorporated is a bi-directional surface-mount thyristor surge protective device (TSPD) designed for primary-level AC/DC line protection in telecom and industrial interfaces. It features 160V stand-off voltage (VDRM), 220V breakover voltage (VBO), 50A 10/1000µs peak pulse current (Ipp), 3.5V on-state voltage (VT) at 1A, and 90pF off-state capacitance (CO), enabling robust transient suppression in DSL, POTS, and PoE-powered equipment.
For engineers reviewing the TB1800M-13 datasheet, TB1800M-13 pinout, TB1800M-13 application, or TB1800M-13 equivalent, this device is selected for high-energy bidirectional clamping where low capacitance, stable triggering, and GR-1089-CORE/IEC 61000-4-5 compliance are required in space-constrained SMB-packaged designs.
Technical Context
This TSPD operates as a voltage-triggered silicon bilateral switch with symmetrical breakdown characteristics. Its oxide-glass passivated junction ensures stable VBO (220V min) and tight leakage control (IDRM ≤ 5µA at 160V), while its positive temperature coefficient of VBR (+0.1%/°C) supports predictable thermal derating across –40°C to +150°C junction range.
The device latches into low-impedance conduction upon exceeding VBO, sustaining up to 30A non-repetitive on-state current (ITSM) for 8.3ms, then recovers to high-impedance state within 30ms after current falls below IH (150–800mA). Its SMB package delivers RJA = 100°C/W and RJL = 20°C/W for effective thermal management in board-level surge paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | 160V - Maximum continuous reverse/forward blocking voltage before triggering; sets minimum system operating margin. |
| VBO | 220V min - Breakover voltage threshold at which device switches to low-impedance state; defines clamping onset point. |
| Ipp (10/1000µs) | 50A - Peak surge current capability per GR-1089-CORE; determines single-event energy handling (≈1.25J). |
| CO | 90pF - Off-state capacitance at 1MHz/2V bias; critical for preserving signal integrity in high-speed telecom lines. |
| VT @ IT=1A | 3.5V - On-state voltage drop during conduction; directly impacts power dissipation (3.5W peak) and thermal design. |
| IH | 150–800mA - Holding current range; must exceed load current to ensure reliable reset after surge clearance. |
| RJL | 20°C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour heat sinking without external heatsink. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bi-directional, polarity-free. Dimensions: 4.06–4.57mm (L) × 3.30–3.94mm (W) × 1.96–2.21mm (H); UL 94V-0 rated molded plastic body; solderable terminals per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (A/K) | Bidirectional main terminals | No polarity marking; either terminal serves as anode or cathode depending on transient polarity; symmetric conduction path. |
| Case | Non-electrical mechanical interface | Electrically isolated plastic body; no internal connection; provides mounting and insulation per UL 497B requirements. |
Key Features
| Feature | Design Value |
|---|---|
| Oxide-glass passivated junction | Enables stable VBO and <5µA IDRM over lifetime, reducing false triggering in humid or contaminated environments. |
| Bi-directional symmetry | Eliminates need for orientation-aware layout; simplifies PCB routing and reduces BOM count in AC-coupled protection circuits. |
| Low 90pF off-state capacitance | Maintains >10MHz signal bandwidth in DSL/PoE data lines without insertion loss or reflection penalties. |
| UL Recognized Component (E156346) | Validates compliance with UL497B for telecom primary protection, accelerating end-equipment safety certification. |
| 30ms surge recovery time | Ensures automatic return to high-impedance state post-surge without external reset circuitry or timing dependencies. |
Applications
| DSL Line Interface Protection | PoE Power Sourcing Equipment (PSE) |
|---|---|
Use Scenario: Protecting ADSL/VDSL line cards from lightning-induced surges on twisted-pair copper loops. IC Role / Device Role / Timing Role: Primary bidirectional clamping device placed between line transformer secondary and PHY IC input. Use Value: 160V VDRM matches typical DSL common-mode operating voltage; 90pF CO avoids degrading 30MHz upstream/downstream signal integrity. | Use Scenario: Safeguarding IEEE 802.3af/at PSE controller inputs and sense resistors against Ethernet cable ESD and surge events. IC Role / Device Role / Timing Role: Standoff protector on DC feed path prior to PD detection circuitry. Use Value: 220V VBO prevents false triggering during normal 57V PSE operation while clamping >300V transients per IEC 61000-4-5 Level 4. |
| Industrial Analog I/O Modules | AC Mains-Fed Telecom Power Supplies |
Use Scenario: Shielding 4–20mA current loop transmitters from induced surges in factory floor wiring. IC Role / Device Role / Timing Role: Series-connected TSPD on loop supply line, upstream of precision shunt regulator. Use Value: 3.5V VT limits voltage drop across protection element, preserving headroom for 24V loop compliance and sensor excitation. | Use Scenario: Input-stage surge suppression in wall-mounted VoIP adapters and broadband gateways connected to AC mains via transformer. IC Role / Device Role / Timing Role: First-line protector on secondary side of isolation transformer, before bridge rectifier. Use Value: 50A 10/1000µs rating handles worst-case GR-1089-CORE longitudinal surges; UL497B recognition supports regulatory approval. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional thyristor surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB1500M-13 | 140V VDRM, 180V VBO, same SMB package and 90pF CO | Lower clamping threshold; better suited for 120VAC-derived systems with tighter voltage margins | Select when system working voltage is ≤140V and lower VBO improves let-through energy reduction. |
| TB2300M-13 | 190V VDRM, 265V VBO, 60pF CO, same thermal specs | Higher standoff and lower capacitance; optimized for 230VAC or high-frequency RF-coupled lines | Choose for 230VAC mains interfaces or where sub-60pF CO is mandatory for >50MHz signal fidelity. |
Compared with TB1500M-13 and TB2300M-13, TB1800M-13 offers the optimal balance of 160V system compatibility, 220V clamping headroom, and 90pF capacitance for global 100–240VAC-powered telecom edge devices requiring GR-1089-CORE compliance without over-engineering.
Availability
TB1800M-13 is available at Aetrix Electronics and suitable for DSL line interface protection, PoE power sourcing equipment, and industrial analog I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for TB1800M-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, telecom, and consumer markets.
TB1800M-13 belongs to the TBxxx0M series of bi-directional TSPDs engineered specifically for primary-side surge immunity in telecom infrastructure, PoE systems, and industrial control interfaces where bidirectional clamping, low capacitance, and UL/IEC compliance are mandatory.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The TB1800M-13 has a specified junction temperature range of –40°C to +150°C. For continuous operation, thermal design must ensure TJ does not exceed +150°C under worst-case ambient and power dissipation conditions. With RJL = 20°C/W, a 1A on-state current produces 3.5W, requiring ≤70°C temperature rise from lead to junction-achievable using ≥25 mm² 2-oz copper pad per terminal.
Does TB1800M-13 require a gate trigger or external control signal?
No. TB1800M-13 is a passive, voltage-triggered thyristor device with no gate terminal. It switches automatically when applied voltage exceeds its breakover voltage (VBO ≥ 220V), then remains latched until load current falls below holding current (IH ≥ 150mA). No external bias, timing, or drive circuitry is needed.
How does the 90pF off-state capacitance affect high-speed data lines?
At 90pF, TB1800M-13 introduces minimal capacitive loading on telecom lines: insertion loss remains <0.5dB up to 30MHz (e.g., VDSL2), and return loss exceeds 15dB through 10MHz. This meets ITU-T G.993.2 requirements for DSL front-end protectors without requiring compensation networks or layout detuning.
Can TB1800M-13 be used in DC-only applications like battery-powered equipment?
Yes-TB1800M-13 functions identically on DC as on AC due to its bi-directional symmetry. It is commonly deployed on DC power rails (e.g., 12–48V) in battery-backed telecom nodes and industrial controllers. Ensure the DC working voltage stays ≤160V (VDRM), and that load current reliably drops below IH after surge clearance to guarantee automatic reset.
TB1800M-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Breakover:
- 220V
- Voltage - Off State:
- 160V
- Voltage - On State:
- 3.5 V
- Current - Peak Pulse (8/20µs):
- 250 A
- Current - Peak Pulse (10/1000µs):
- 50 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 90pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
TB1800M-13 FAQ
1.How can I place an order for TB1800M-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for TB1800M-13 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 TB1800M-13 reliable?
The price and inventory of TB1800M-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB1800M-13 is usually 5 days.
3.What payment methods are accepted for TB1800M-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB1800M-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB1800M-13?
TB1800M-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB1800M-13 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 TB1800M-13?
For technical support, including TB1800M-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB1800M-13 requirements.
6.How does Aetrix verify that TB1800M-13 is sourced from the original manufacturer or authorized distributors?
All TB1800M-13 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 TB1800M-13 meets industry standards.
7.What is the process for return or replacement of TB1800M-13?
All TB1800M-13 units undergo pre-shipment inspection (PSI). If there is an issue with TB1800M-13, 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 TB1800M-13 part is unused and in its original packaging.
Return procedure for TB1800M-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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