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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > Thyristors

Diodes Incorporated TB1800H-13

Name: TB1800H-13
Brand: Diodes Incorporated
SKU: TB1800H-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TB1800H-13

Manufacturer:: Diodes Incorporated

Category:: Thyristors

Package:: DO-214AA, SMB

Datasheet:: TB1800H-13.pdf

Description:: THYRISTOR 160V 400A DO-214AA

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Inventory:3,000

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Product details

Overview

TB1800H-13 from Diodes Incorporated is a bidirectional surface-mount thyristor surge protective device (TSPD) designed for primary-level AC/DC line protection in telecom and industrial interfaces. It features a 160V stand-off voltage (V_DRM), 220V breakover voltage (V_BO), 100A peak pulse current (10/1000μs), 400A peak pulse current (8/20μs), and 120pF off-state capacitance - enabling robust GR-1089-CORE and IEC 61000-4-5 compliance in DSL, POTS, and PoE-powered equipment.

For engineers reviewing the TB1800H-13 datasheet, TB1800H-13 pinout, TB1800H-13 application, or TB1800H-13 equivalent, key selection criteria include stand-off voltage margin vs. line voltage, hold-current stability over temperature, surge waveform derating (e.g., 10/700μs vs. 10/1000μs), and SMB package thermal resistance (R_θJA = 100°C/W) for PCB layout reliability.

Technical Context

This TSPD operates as a voltage-triggered crowbar device: it remains high-impedance below V_DRM (160V), transitions to low-on-state voltage (≤3.5V at 1A) upon exceeding V_BO (220V), and latches until current falls below I_H (150–800mA). Its oxide-glass passivated junction ensures stable breakdown with ±0.1%/°C temperature coefficient.

Designed for bidirectional line-to-line or line-to-ground protection, it delivers symmetrical clamping without polarity marking. The device sustains non-repetitive 50A on-state current (I_TSM) and recovers within ≤30ms after surge removal - critical for repeated lightning-induced transients in outdoor telecom cabinets.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DRM	160V - Maximum continuous AC/DC operating voltage before conduction; sets minimum insulation margin for 120VAC or 48VDC systems.
V_BO	220V - Breakover threshold where device triggers into low-resistance state; defines clamping onset for transient suppression.
I_PP (10/1000μs)	100A - Peak surge current handling per GR-1089-CORE; determines survivability against long-duration lightning surges.
I_PP (8/20μs)	400A - Higher-energy surge rating per IEC 61000-4-5; supports Type 2/3 SPD coordination in building entry points.
C_O	120pF - Off-state capacitance at 1MHz/2V bias; low enough to avoid signal integrity degradation in <10MHz analog/telecom lines.
I_H	150–800mA - Holding current range; must exceed circuit's steady-state fault current to ensure automatic reset after surge clearance.
R_θJA	100°C/W - Junction-to-ambient thermal resistance; requires ≥25mm² copper pour under pad for sustained 50A surge duty.

Pinout & Package

Package: SMB (DO-214AA), molded plastic case with UL 94V-0 flammability rating, matte tin-plated terminals, and no polarity indicator due to bidirectional symmetry.

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (A/K)	Bidirectional main terminals	Interchangeable; both pins serve identical conduction paths - no orientation required during placement.
Case	Non-electrical mechanical interface	Plastic body provides isolation; no thermal or electrical connection to PCB ground plane.

Key Features

Feature	Design Value
Oxide-glass passivated junction	Ensures stable V_BO across -40°C to +150°C with ±0.1%/°C drift - eliminates recalibration in outdoor base stations.
Bidirectional single-device protection	Replaces dual-diode or MOV+GDT stacks in line-to-line configurations, reducing BOM count and PCB area by >40%.
UL Recognized Component (File E156346)	Validates compliance for end-equipment safety certification without additional system-level testing.
Lead-free & halogen-free construction	Meets RoHS Directive 2002/95/EC and JEDEC J-STD-020 moisture sensitivity Level 1 - supports automated reflow without popcorn cracking.

Applications

DSL Line Interface Protection

PoE Power Sourcing Equipment

Use Scenario: Protecting ADSL/VDSL line cards from induced lightning surges on twisted-pair copper loops.

IC Role / Device Role / Timing Role: Primary crowbar protector placed between tip/ring and PHY IC, triggered before transceiver damage occurs.

Use Value: 160V V_DRM allows safe operation on 120VAC-powered DSLAMs while 220V V_BO clamps 6kV 10/700μs surges per ITU-T K.21.

Use Scenario: Safeguarding IEEE 802.3af/at PSE controllers and DC-DC converters from Ethernet cable ESD and surge events.

IC Role / Device Role / Timing Role: Bidirectional line-to-ground clamp on power pairs (pins 4–5 and 7–8), absorbing common-mode transients before they reach magnetics.

Use Value: 120pF C_O prevents bandwidth loss in 100BASE-TX signals; 400A 8/20μs rating handles worst-case PD-side surge coupling.

Industrial PLC Analog I/O Modules

AC Mains-Fed Security Cameras

Use Scenario: Shielding 4–20mA current-loop inputs from field wiring transients in factory automation cabinets.

IC Role / Device Role / Timing Role: Standoff-limited protector across input terminals, holding off 24VDC supply while triggering above 160V surge peaks.

Use Value: 150–800mA I_H range ensures reliable self-reset after surge decay, avoiding latch-up in loop-powered sensors.

Use Scenario: Protecting outdoor IP camera power inputs connected to 24VAC transformers exposed to lightning-prone environments.

IC Role / Device Role / Timing Role: Line-to-line crowbar on secondary side of transformer, limiting voltage rise during fast-rising surges.

Use Value: 100A 10/1000μs rating meets UL497B requirements for Class B telecom equipment; SMB footprint enables compact enclosure design.

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
Littlefuse SP1003-010	100V V_DRM, 130V V_BO, 100A I_PP (10/1000μs), SMB package	Lower stand-off voltage limits use to 48VDC systems; higher leakage (10μA) reduces noise immunity in precision analog circuits.	Select when lower clamping voltage is prioritized over line-voltage margin.
Littelfuse SP3022-01ETG	130V V_DRM, 180V V_BO, 100A I_PP (10/1000μs), SOD-123FL package	Smaller footprint but higher R_θJA (150°C/W); limited to lower-duty-cycle surges due to thermal constraints.	Choose for space-constrained designs where 130V V_DRM suffices and thermal mass is managed externally.

Compared with SP1003-010 and SP3022-01ETG, TB1800H-13 offers superior stand-off margin for 120VAC-derived supplies and better thermal dissipation in SMB layout - making it optimal for telecom line cards and industrial AC-fed modules requiring repeatable surge endurance.

Availability

TB1800H-13 is available at Aetrix Electronics and suitable for DSL line interface protection, PoE power sourcing equipment, and industrial PLC analog I/O modules requiring stable component supply and full compliance traceability.

Supply support for TB1800H-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

The TB-series TSPDs are engineered specifically for telecom-grade surge immunity - targeting GR-1089-CORE, ITU-T K.20/K.21, and UL497B certification in carrier-class infrastructure and enterprise edge devices.

FAQ

What is the maximum continuous operating voltage for TB1800H-13?

The maximum repetitive off-state voltage (V_DRM) is 160V DC or RMS AC. This value represents the highest steady-state voltage the device blocks without triggering. Operation above this level risks unintended conduction, especially at elevated temperatures where leakage increases. Designers must maintain ≥20% margin below V_DRM for reliability in 120VAC applications.

Does TB1800H-13 require external gate control or biasing?

No - TB1800H-13 is a three-layer bidirectional thyristor with no gate terminal. It triggers solely based on voltage exceeding V_BO (220V typical) across its terminals and resets automatically when load current drops below I_H (150–800mA). No external circuitry, timing components, or control signals are needed for basic surge clamping operation.

How does TB1800H-13 compare to MOV-based protectors in telecom applications?

TB1800H-13 offers sharper voltage clamping (3.5V on-state vs. MOV's gradual varistor curve), lower capacitance (120pF vs. 500–2000pF), and no degradation after repeated surges. Unlike MOVs, it does not age or shift parameters with cumulative energy exposure - ensuring consistent performance over 10+ years in DSLAM line cards meeting Telcordia GR-1089-CORE.

Can TB1800H-13 be used in automotive applications?

TB1800H-13 is not qualified to AEC-Q101 and lacks automotive-specific validation (e.g., ISO 7637-2 pulse testing, extended temperature cycling). Its -40°C to +150°C junction range supports under-hood ambient conditions, but absence of automotive qualification documentation and lack of automotive-grade screening make it unsuitable for safety-critical vehicle systems per OEM requirements.

TB1800H-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):: 400 A

Current - Peak Pulse (10/1000µs):: 100 A

Current - Hold (Ih):: 150 mA

Number of Elements:: 1

Capacitance:: 120pF

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SMB

TB1800H-13 FAQ

1.How can I place an order for TB1800H-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for TB1800H-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 TB1800H-13 reliable?

The price and inventory of TB1800H-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB1800H-13 is usually 5 days.

3.What payment methods are accepted for TB1800H-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB1800H-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TB1800H-13?

TB1800H-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TB1800H-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 TB1800H-13?

For technical support, including TB1800H-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB1800H-13 requirements.

6.How does Aetrix verify that TB1800H-13 is sourced from the original manufacturer or authorized distributors?

All TB1800H-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 TB1800H-13 meets industry standards.

7.What is the process for return or replacement of TB1800H-13?

All TB1800H-13 units undergo pre-shipment inspection (PSI). If there is an issue with TB1800H-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 TB1800H-13 part is unused and in its original packaging.

Return procedure for TB1800H-13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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