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

Diodes Incorporated TB2300M-13

Name: TB2300M-13
Brand: Diodes Incorporated
SKU: TB2300M-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TB2300M-13

Manufacturer:: Diodes Incorporated

Category:: Thyristors

Package:: DO-214AA, SMB

Datasheet:: TB2300M-13.pdf

Description:: THYRISTOR 190V 250A DO-214AA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TB2300M-13 from Diodes Incorporated is a bi-directional surface-mount thyristor surge protective device (TSPD) designed for primary-level overvoltage protection in telecom and industrial AC/DC power interfaces. It features 190V stand-off voltage, 50A peak pulse current (10/1000µs), 250A peak surge current (8/20µs), 3.5V on-state voltage at 1A, and 60pF off-state capacitance - enabling robust GR-1089-CORE and IEC 61000-4-5 compliance in DSL line cards and PoE-powered equipment.

For engineers reviewing the TB2300M-13 datasheet, TB2300M-13 pinout, TB2300M-13 application, or TB2300M-13 equivalent, key selection criteria include verified bi-directional clamping behavior, thermal resistance (R_JL = 20°C/W), holding current range (150–800mA), junction temperature rating (−40°C to +150°C), and SMB package compatibility with automated SMT assembly.

Technical Context

This TSPD operates as a voltage-triggered crowbar device: it remains high-impedance below 190V (V_DRM), triggers at ~265V (V_BO) via internal avalanche-initiated thyristor latch-up, and sustains conduction until current falls below 150–800mA (I_H). Its oxide-glass passivated junction ensures stable breakover voltage drift of +0.1%/°C.

Unlike TVS diodes, it delivers low clamping voltage only after triggering and relies on system current limiting to reset; its 30ms maximum recovery time and 20°C/W junction-to-lead thermal resistance support repeated surge handling in AC-coupled telecom ports without thermal runaway.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DRM	190 V - Maximum continuous reverse/forward blocking voltage before conduction
I_PP (10/1000µs)	50 A - Peak surge current capability per GR-1089-CORE Level 3 requirement
I_PP (8/20µs)	250 A - Surge rating aligned with IEC 61000-4-5 Line-to-Line test profiles
V_T @ 1A	3.5 V - Low on-state voltage minimizes power dissipation during clamping
C_O	60 pF - Low capacitance preserves signal integrity in high-speed data lines (e.g., xDSL)
R_JL	20 °C/W - Enables direct PCB copper pour heat sinking for repetitive surge duty cycles
T_J Range	−40°C to +150°C - Supports operation in uncontrolled industrial enclosures and outdoor base stations

Pinout & Package

Package: SMB (DO-214AA), surface-mount, bi-directional device with no polarity marking; terminals are anode and cathode - functionally interchangeable due to symmetrical structure.

Pin/Terminal	Circuit Role	Design Meaning
Anode (A)	Current entry terminal during positive half-cycle conduction	Connected to protected line side; must withstand full surge current path
Cathode (K)	Current exit terminal during positive half-cycle conduction	Connected to ground or return path; forms low-impedance clamp loop with A

Key Features

Feature	Design Value
Bi-directional clamping	Enables single-device protection of AC lines without external bridge or polarity awareness
Oxide-glass passivated junction	Ensures long-term stability of V_BO and leakage under humidity and thermal cycling
UL Recognized Component (E156346)	Validates safety compliance for end-equipment certification without additional system-level testing
Low 60pF off-state capacitance	Maintains >10MHz bandwidth in ADSL2+/VDSL2 line interfaces without signal attenuation
20°C/W junction-to-lead thermal resistance	Allows ≥3× higher surge repetition rate vs. comparable TSPDs with R_JL > 40°C/W

Applications

DSL Line Card Protection

PoE Power Sourcing Equipment (PSE)

Use Scenario: Protecting twisted-pair copper interfaces in central office DSLAMs against lightning-induced surges and AC power cross-talk.

IC Role / Device Role / Timing Role: Primary crowbar protector placed between line transformer secondary and codec IC input.

Use Value: 190V V_DRM blocks normal-mode AC ringing while 265V V_BO triggers fast enough to limit induced transients to <120V at codec pins.

Use Scenario: Safeguarding IEEE 802.3af/at PSE controller ICs and MOSFET switches from cable discharge events and Ethernet ESD.

IC Role / Device Role / Timing Role: Bidirectional shunt clamp on DC power pairs (spare pairs or mode-A/B power delivery paths).

Use Value: 60pF C_O avoids degrading 100BASE-TX eye diagrams; 250A 8/20µs rating exceeds IEC 61000-4-5 Level 4 requirements.

Industrial AC Motor Control Inputs

Building Automation BACnet MS/TP Interfaces

Use Scenario: Guarding 24VAC control inputs of PLC I/O modules against inductive kickback and utility grid transients.

IC Role / Device Role / Timing Role: Standoff protector across input terminals, upstream of optocoupler or rectifier bridge.

Use Value: −40°C to +150°C T_J range supports operation inside sealed motor drive cabinets; 3.5V V_T limits self-heating during sustained fault conditions.

Use Scenario: Securing RS-485-based BACnet MS/TP nodes installed in HVAC ducts and elevator shafts exposed to EFT and surge coupling.

IC Role / Device Role / Timing Role: Bi-directional transient suppressor on differential bus lines (A/B), referenced to local chassis ground.

Use Value: UL recognition simplifies UL 60730-1 compliance for building control systems; SMB footprint enables dense layout on space-constrained node PCBs.

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
SMBJ190CA	Unidirectional TVS diode; 190V standoff, 52.2V clamping at 50A, 100pF capacitance	Lacks crowbar latching; requires series impedance for reset; higher clamping voltage	Prefer for lower-cost, non-latching protection where system current naturally drops post-surge
TB2600M-13	220V V_DRM, 300V V_BO, same SMB package and thermal specs	Better suited for 240VAC mains-fed equipment; slightly higher trigger threshold delays response to marginal surges	Select when protecting 230VAC auxiliary supplies where 190V V_DRM risks nuisance triggering

Compared with SMBJ190CA, TB2300M-13 provides lower clamping voltage (3.5V vs. 52.2V) and true crowbar action but requires external current limiting. Versus TB2600M-13, it offers faster response to sub-220V transients at the cost of reduced margin against sustained overvoltage.

Availability

TB2300M-13 is available at Aetrix Electronics and suitable for DSL line card protection, PoE power sourcing equipment, and industrial AC motor control inputs requiring stable component supply across multi-year production cycles.

Supply support for TB2300M-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and protection applications.

TB2300M-13 belongs to the TBxxx0M bi-directional TSPD product line, engineered specifically for primary-level surge immunity in telecom infrastructure, industrial automation, and building control systems operating under harsh EMC environments.

FAQ

What is the minimum required series impedance to ensure reliable reset after triggering?

The device requires load current to fall below 150mA (I_H min) to return to high-impedance state. For a 48V PoE line, a 330Ω series resistor limits hold current to ~145mA, ensuring recovery within 30ms. Lower voltages require proportionally smaller resistors; consult Figure 1 in DS30361 for I_H vs. T_J curves.

Can TB2300M-13 be used in DC-only applications like battery backup systems?

Yes - its bi-directional symmetry allows use across DC rails, provided the system includes current-limiting impedance to guarantee post-surge current drops below 150mA. In 24V DC systems, a 150Ω resistor ensures safe reset; note that V_DRM defines maximum continuous reverse bias, not just AC peak.

How does temperature affect breakover voltage accuracy?

V_BO increases by +0.1% per °C rise in junction temperature. At 125°C junction, V_BO rises ~10% above its 25°C value of 265V - to ~292V. This positive coefficient prevents premature triggering at high ambient temperatures common in enclosed industrial gear.

Is the SMB package lead-free and RoHS-compliant?

Yes - TB2300M-13 uses lead-free solder plating on terminals and complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020A moisture sensitivity level 1. The molded plastic housing meets UL 94V-0 flammability rating, and all materials are fully traceable per Diodes Inc. PPAP documentation.

TB2300M-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:: 265V

Voltage - Off State:: 190V

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:: 60pF

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SMB

TB2300M-13 FAQ

1.How can I place an order for TB2300M-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for TB2300M-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 TB2300M-13 reliable?

The price and inventory of TB2300M-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB2300M-13 is usually 5 days.

3.What payment methods are accepted for TB2300M-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB2300M-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TB2300M-13?

TB2300M-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TB2300M-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 TB2300M-13?

For technical support, including TB2300M-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB2300M-13 requirements.

6.How does Aetrix verify that TB2300M-13 is sourced from the original manufacturer or authorized distributors?

All TB2300M-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 TB2300M-13 meets industry standards.

7.What is the process for return or replacement of TB2300M-13?

All TB2300M-13 units undergo pre-shipment inspection (PSI). If there is an issue with TB2300M-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 TB2300M-13 part is unused and in its original packaging.

Return procedure for TB2300M-13:

1.Submit a request within 90 days.

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

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