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

Diodes Incorporated TB1500L-13-F

Name: TB1500L-13-F
Brand: Diodes Incorporated
SKU: TB1500L-13-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TB1500L-13-F

Manufacturer:: Diodes Incorporated

Category:: Thyristors

Package:: DO-214AA, SMB

Datasheet:: TB1500L-13-F.pdf

Description:: THYRISTOR 140V 150A DO-214AA

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Product details

Overview

TB1500L-13-F from Diodes Incorporated is a bidirectional surface-mount thyristor surge protective device (TSPD) designed for telecom and data line transient suppression. It features a 140 V maximum repetitive off-state voltage (V_DRM), 30 A peak pulse current (I_PP) at 10/1000 μs, 180 V breakover voltage (V_BO), 3.5 V on-state voltage at 1 A, and 60 pF off-state capacitance - enabling robust GR-1089-CORE and IEC 61000-4-5 compliance in DSL, T1/E1, and PoE interface protection.

For engineers reviewing the TB1500L-13-F datasheet, TB1500L-13-F pinout, TB1500L-13-F application, or TB1500L-13-F equivalent, key selection criteria include stand-off voltage margin vs. line operating voltage, hold current stability over temperature, surge waveform derating (e.g., 150 A @ 8/20 μs), and SMB package thermal resistance (R_θJL = 30 °C/W) for PCB-level power dissipation management.

Technical Context

TB1500L-13-F operates as a voltage-triggered, bidirectional crowbar device with symmetrical positive/negative breakover characteristics. Its oxide-glass passivated junction ensures stable V_BO (180 V ±10%) and low leakage (<5 μA at 140 V), while the 150 mA typical holding current (I_H) guarantees reliable latching after surge initiation and clean recovery within 30 ms.

The device exhibits a +0.1 %/°C positive temperature coefficient for breakdown voltage and maintains <60 pF off-state capacitance at 2 V DC bias and 1 MHz - critical for preserving signal integrity on high-speed telecom lines without introducing excessive insertion loss or impedance discontinuity.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DRM	140 V - Maximum continuous AC/DC line voltage the device blocks before triggering; sets minimum isolation margin for 120 V RMS telecom interfaces.
I_PP (10/1000 μs)	30 A - Peak surge current capability per IEEE C62.41; defines clamping energy handling for long-duration lightning-induced transients.
V_BO	180 V - Symmetrical breakover threshold; triggers conduction when line-to-line differential exceeds this value in either polarity.
V_T @ I_T = 1 A	3.5 V - Low on-state voltage during clamping; limits power dissipation to ≤3.5 W during 1 A surge, reducing thermal stress.
C_O	60 pF - Off-state capacitance at 2 V DC bias and 1 MHz; enables use on sub-10 Mbps digital lines without significant high-frequency attenuation.
I_H	150–800 mA - Holding current range; ensures sustained conduction during surge decay and prevents premature turn-off before transient energy fully dissipates.
R_θJL	30 °C/W - Junction-to-lead thermal resistance; supports >15 A surge current handling with minimal PCB copper area when mounted to solid ground plane.

Pinout & Package

Package: SMB (DO-214AA), surface-mount, bidirectional, polarity-free case with matte tin-plated terminals. Dimensions: 4.3 mm × 2.5 mm × 2.3 mm (L × W × H), UL 94V-0 molded plastic body, weight ≈ 0.093 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (A/K)	Bidirectional main terminals	No polarity marking; interchangeable connection - either terminal serves as anode or cathode depending on instantaneous voltage polarity.
Case / Body	Non-electrical mechanical reference	Insulated plastic housing; no internal thermal or electrical connection to die - thermal path is exclusively through solder joints to PCB copper.

Key Features

Feature	Design Value
Oxide-glass passivated junction	Enables stable V_BO drift <±5% over 1000 hrs at 125°C and eliminates moisture-induced parameter shift in humid environments.
150 A I_PP @ 8/20 μs	Supports Level 4 IEC 61000-4-5 immunity testing (4 kV line-earth) without degradation, meeting carrier-grade equipment requirements.
UL Recognized Component (File E156346)	Validates safety compliance for end-equipment certification under UL497B, eliminating need for additional system-level surge component validation.
Green molding compound (halogen-free)	Meets IPC-4101D/126 specification for bromine/antimony content, supporting RoHS-compliant manufacturing and WEEE recyclability mandates.

Applications

DSL Line Card Protection

T1/E1 Interface Protection

Use Scenario: Protects ADSL2+ line drivers and receivers from induced surges on twisted-pair copper loops exposed to lightning or power cross events.

IC Role / Device Role / Timing Role: Bidirectional crowbar clamping device placed across tip/ring pair; triggers within nanoseconds upon exceeding 180 V differential.

Use Value: Limits peak line voltage to <3.5 V during conduction, preventing damage to downstream line transceivers rated for ≤5 V absolute maximum.

Use Scenario: Shields T1/E1 framer ICs and transformer-coupled physical layer interfaces against longitudinal surges per GR-1089-CORE Zone 3 requirements.

IC Role / Device Role / Timing Role: Primary surge shunt on balanced receive/transmit pairs; operates independently of signal polarity or DC bias level.

Use Value: Maintains <60 pF capacitance to avoid degrading eye diagram integrity at 2.048 Mbps, while surviving repeated 150 A (8/20 μs) surges.

PoE Power Sourcing Equipment (PSE)

Industrial RS-485 Network Node

Use Scenario: Safeguards 4-pair PoE++ (IEEE 802.3bt) PSE controllers and magnetics from fault currents caused by cable short circuits or lightning coupling.

IC Role / Device Role / Timing Role: Secondary overvoltage clamp on data pairs (spare pairs or signal pairs), activated only during abnormal overvoltage conditions.

Use Value: Provides 140 V stand-off margin above 57 V max PoE voltage, ensuring no false triggering during normal mode operation or inrush.

Use Scenario: Installed on field-side RS-485 bus nodes in factory automation systems subject to ground potential differences and EFT bursts.

IC Role / Device Role / Timing Role: Fail-safe transient suppressor across A/B differential lines; latches during 4 kV EFT event and resets automatically post-surge.

Use Value: Guarantees >30 ms surge recovery time and >150 mA holding current to prevent chatter or oscillation during multi-pulse EFT testing.

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
Littelfuse SP1003-010	100 V V_DRM, 100 A I_PP @ 8/20 μs, SMB package, higher capacitance (120 pF)	Better suited for lower-voltage AC mains input stages; less ideal for 120 V RMS telecom lines due to reduced stand-off margin	Select when higher surge current rating is prioritized over signal bandwidth preservation
Bourns TBU-CA085-200-WH	85 V V_DRM, 200 A I_PP @ 8/20 μs, SOT-23 package, faster response (<10 ns), but unidirectional	Requires dual-device configuration for bidirectional protection; adds layout complexity and cost	Choose for ultra-fast, high-current protection where board space allows dual placement and polarity-aware design

Compared with SP1003-010 and TBU-CA085-200-WH, TB1500L-13-F delivers optimal balance of 140 V stand-off headroom, 60 pF low capacitance, and true single-device bidirectionality - making it uniquely suitable for telecom line cards and PoE data pair protection without signal integrity compromise or layout overhead.

Availability

TB1500L-13-F is available at Aetrix Electronics and suitable for DSL line card protection, T1/E1 interface hardening, and industrial RS-485 node surge suppression requiring stable component supply across extended production lifecycles.

Supply support for TB1500L-13-F 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 computing markets.

TB1500L-13-F belongs to the TBxxxL series of bidirectional thyristor surge protectors, engineered specifically for GR-1089-CORE and IEC 61000-4-5 compliant telecom infrastructure and data communication equipment.

FAQ

What is the maximum continuous operating voltage for TB1500L-13-F?

The maximum repetitive off-state voltage (V_DRM) is 140 V DC or RMS. This is the highest steady-state voltage the device reliably blocks in both directions without triggering. Operation above this voltage risks unintended conduction and accelerated wear. Derating to ≤120 V is recommended for long-term reliability in 120 V RMS telecom applications.

Does TB1500L-13-F require external gate control or biasing?

No. TB1500L-13-F is a passive, voltage-triggered thyristor with no gate terminal. It operates autonomously: conduction initiates when the applied voltage across its terminals exceeds the 180 V breakover threshold (V_BO) in either polarity, and sustains conduction until current falls below the 150–800 mA holding current (I_H) range.

How does TB1500L-13-F compare to MOV-based protectors in telecom applications?

TB1500L-13-F offers lower clamping voltage (3.5 V vs. ≥10 V for MOVs), tighter voltage tolerance (±10% V_BO vs. ±20% for MOVs), and negligible capacitance drift over lifetime. Unlike MOVs, it exhibits no leakage increase or catastrophic failure mode - failing open-circuit if overstressed, preserving downstream circuit functionality.

Can TB1500L-13-F be used in automotive applications?

No. TB1500L-13-F is not qualified to AEC-Q101 or automotive temperature/humidity/reliability standards. Its specified operating junction temperature range is −40°C to +150°C, but it lacks automotive-specific qualification testing (e.g., vibration, sulfur exposure, extended life testing). Use only in industrial, telecom, and commercial equipment per Diodes Incorporated's published specifications.

TB1500L-13-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Package/Case:: DO-214AA, SMB

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Breakover:: 180V

Voltage - Off State:: 140V

Voltage - On State:: 3.5 V

Current - Peak Pulse (8/20µs):: 150 A

Current - Peak Pulse (10/1000µs):: 30 A

Current - Hold (Ih):: 150 mA

Number of Elements:: 1

Capacitance:: 60pF

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMB

TB1500L-13-F FAQ

1.How can I place an order for TB1500L-13-F through Aetrix?

Please submit a Request for Quotation (RFQ) for TB1500L-13-F 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 TB1500L-13-F reliable?

The price and inventory of TB1500L-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB1500L-13-F is usually 5 days.

3.What payment methods are accepted for TB1500L-13-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB1500L-13-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TB1500L-13-F?

TB1500L-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TB1500L-13-F 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 TB1500L-13-F?

For technical support, including TB1500L-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB1500L-13-F requirements.

6.How does Aetrix verify that TB1500L-13-F is sourced from the original manufacturer or authorized distributors?

All TB1500L-13-F 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 TB1500L-13-F meets industry standards.

7.What is the process for return or replacement of TB1500L-13-F?

All TB1500L-13-F units undergo pre-shipment inspection (PSI). If there is an issue with TB1500L-13-F, 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 TB1500L-13-F part is unused and in its original packaging.

Return procedure for TB1500L-13-F:

1.Submit a request within 90 days.

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

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