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

Diodes Incorporated TB0900L-13-F

Name: TB0900L-13-F
Brand: Diodes Incorporated
SKU: TB0900L-13-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TB0900L-13-F

Manufacturer:: Diodes Incorporated

Category:: Thyristors

Package:: DO-214AA, SMB

Datasheet:: TB0900L-13-F.pdf

Description:: THYRISTOR 75V 150A DO-214AA

Quantity:: RFQ Add To RFQ list

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Inventory:16,320

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Product details

Overview

TB0900L-13-F from Diodes Incorporated is a bidirectional surface-mount thyristor surge protective device (TSPD) designed for telecom and data line overvoltage clamping. It features a 75 V maximum repetitive off-state voltage (V_DRM), 30 A peak pulse current (I_PP) at 10/1000 µs, 98 V breakover voltage (V_BO), 3.5 V on-state voltage at 1 A, and 100 pF off-state capacitance - enabling robust GR-1089-CORE and IEC 61000-4-5 compliance in DSL, T1/E1, and analog phone line protection.

For engineers reviewing the TB0900L-13-F datasheet, TB0900L-13-F pinout, TB0900L-13-F application, or TB0900L-13-F equivalent, key selection criteria include stand-off voltage margin vs. line operating voltage, bidirectional clamping symmetry, low capacitance for high-frequency signal integrity, and thermal resistance (R_θJA = 120 °C/W) for PCB layout derating in sustained surge environments.

Technical Context

This TSPD operates as a voltage-triggered, self-resetting crowbar device with oxide-glass passivated junction. Its bidirectional structure eliminates polarity concerns and enables symmetric clamping on AC-coupled lines without external diode bridges.

Breakover is initiated when applied voltage exceeds V_BO (98 V typical), transitioning to low-impedance conduction with <3.5 V on-state drop. Recovery to high-impedance off-state occurs automatically once current falls below holding current (I_H: 150–800 mA) and surge energy dissipates within ≤30 ms.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DRM	75 V - Maximum continuous AC/DC line voltage the device blocks before triggering; sets minimum isolation margin for 56 V nominal DSL lines.
I_PP (10/1000 µs)	30 A - Peak surge current handling per IEEE/IEC standard waveform; defines clamping capability against lightning-induced transients.
V_BO	98 V typical - Voltage threshold at which device switches to low-impedance state; ensures reliable triggering above normal line peaks.
V_T @ I_T = 1 A	3.5 V - On-state voltage drop during conduction; determines power dissipation (3.5 W at 1 A) and thermal design load.
C_O	100 pF - Off-state junction capacitance at 2 V DC bias and 1 MHz; critical for preserving signal bandwidth in xDSL and ISDN interfaces.
R_θJA	120 °C/W - Junction-to-ambient thermal resistance; requires ≥100 mm² copper pour for safe operation at full I_PP duty cycle.
I_H	150–800 mA - Minimum current needed to sustain conduction; must exceed circuit's steady-state leakage to ensure clean reset after surge.

Pinout & Package

Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; terminals are symmetrical anode/cathode connections.

Pin/Terminal	Circuit Role	Design Meaning
Anode (A)	Current entry terminal under positive half-cycle	One of two identical, interchangeable terminals; bidirectional symmetry means either pin serves as anode or cathode depending on voltage polarity.
Cathode (K)	Current exit terminal under positive half-cycle	Electrically identical to Anode pin; no functional distinction - device conducts equally in both directions when V > V_BO.

Key Features

Feature	Design Value
Bidirectional clamping	Enables single-device protection of AC-coupled telecom lines (e.g., POTS, xDSL) without external bridge rectification.
Oxide-glass passivated junction	Ensures stable V_BO and low leakage (<5 µA) across -40°C to +150°C operating range.
UL Recognized Component	File E156346 confirms compliance with UL497B for primary/secondary circuit protection in telecom equipment.
RoHS-compliant & halogen-free	Meets EU Directive 2002/95/EC and IPC-4101D/93 requirements for green electronics manufacturing.
Low thermal resistance (R_θJL = 30 °C/W)	Supports efficient heat transfer to PCB copper via lead frame, reducing localized hot spots during repetitive surges.

Applications

DSL Line Protection

T1/E1 Interface Protection

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

IC Role / Device Role / Timing Role: Bidirectional crowbar device that clamps differential-mode transients above 98 V while maintaining <100 pF signal path capacitance.

Use Value: Preserves >2.2 MHz upstream/downstream bandwidth and meets ITU-T G.992.1/G.993.2 spectral mask requirements without filtering distortion.

Use Scenario: Safeguarding T1/E1 framer ICs and transformer-coupled line drivers against secondary surges from wet-line faults or induction.

IC Role / Device Role / Timing Role: Standoff protector placed before line transformer; triggers only during overvoltage events >98 V, remaining transparent during 3.3 V logic-level signaling.

Use Value: Eliminates need for discrete back-to-back TVS diodes, reducing BOM count by one component and PCB footprint by 30%.

Analog Telephone Line (POTS)

ISDN Basic Rate Interface (BRI)

Use Scenario: Overvoltage protection in telephone line interface modules for PBX, VoIP gateways, and fax machines.

IC Role / Device Role / Timing Role: Primary surge suppressor on tip/ring pair; holds off 75 V RMS ringing voltage while clamping 1 kV/10/700 µs transients per FCC Part 68.

Use Value: Achieves FCC Part 68 certification with single-device solution and avoids false triggering during 20 Hz–4 kHz voice-band signals.

Use Scenario: Protecting ISDN S/T interface transceivers from surge coupling through shared building wiring.

IC Role / Device Role / Timing Role: Bidirectional shunt element across B-channel differential pairs; maintains impedance match (100 Ω) due to symmetric structure and low C_O.

Use Value: Enables full 144 kbps BRI data rate without jitter increase or bit error rate degradation caused by capacitive loading.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional TSPD applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMCJ75CA	Unidirectional TVS diode array; 75 V standoff, 150 A @ 8/20 µs, but lacks self-resetting thyristor behavior and has higher capacitance (150 pF).	Requires external series impedance for hold-off; unsuitable for direct placement on low-impedance telecom lines without risk of latch-up.	Select when higher surge rating is prioritized over automatic recovery and low-capacitance signal integrity.
TPSMB75CA	Bi-directional TVS diode; 75 V standoff, 100 A @ 8/20 µs, 120 pF capacitance, no holding current requirement.	Clamps faster but does not sustain conduction - may allow multiple retriggering during long surges, increasing thermal stress.	Prefer for short-duration transients where clamping speed outweighs sustained energy handling.

Compared with SMJ75CA and TPSMB75CA, TB0900L-13-F provides deterministic, self-resetting crowbar action with lower capacitance and defined holding behavior - making it uniquely suited for telecom line interfaces requiring guaranteed single-event clamping and minimal signal distortion.

Availability

TB0900L-13-F is available at Aetrix Electronics and suitable for DSL line cards, T1/E1 interface modules, analog telephone line protection circuits, and ISDN BRI implementations requiring stable component supply and long-term lifecycle support.

Supply support for TB0900L-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 consumer markets.

TB0900L-13-F belongs to the TB-series bidirectional TSPD product line, engineered specifically for GR-1089-CORE and ITU-T K.20/K.21 compliant telecom surge protection with emphasis on low capacitance, symmetric clamping, and RoHS-compliant packaging.

FAQ

What is the maximum continuous operating voltage for TB0900L-13-F?

The maximum repetitive off-state voltage (V_DRM) is 75 V DC or RMS. This is the highest steady-state voltage the device reliably blocks without triggering. Operation above this value risks premature conduction, especially at elevated temperatures where V_BO drifts positively at +0.1 %/°C. Designers must maintain ≥20% margin below V_DRM for reliability across temperature and aging.

Does TB0900L-13-F require a series current-limiting resistor?

No external series resistor is required for basic surge clamping, as the device self-limits current via its negative resistance characteristic once triggered. However, a resistor may be added to limit total surge energy dissipated in the TSPD during long-duration transients - particularly when protecting downstream components rated for lower I_PP, such as Ethernet PHYs or codec ICs.

How does TB0900L-13-F compare to unidirectional TVS diodes in telecom applications?

TB0900L-13-F offers bidirectional symmetry, automatic reset after surge decay, and lower off-state capacitance (100 pF vs. ≥120 pF for most TVS), making it superior for AC-coupled telecom lines like POTS and xDSL. Unidirectional TVS diodes require dual-device configurations and lack the controlled holding behavior essential for preventing latch-up in transformer-isolated interfaces.

Is TB0900L-13-F compatible with lead-free reflow soldering processes?

Yes - TB0900L-13-F features matte tin-plated leads and complies with J-STD-020 moisture sensitivity level 1. It supports standard Pb-free reflow profiles up to 260°C peak temperature. The SMB package's thermal mass and RoHS-compliant molding compound ensure reliable joint formation without delamination or voiding when using recommended soak and ramp rates.

TB0900L-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:: 98V

Voltage - Off State:: 75V

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:: 100pF

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMB

TB0900L-13-F FAQ

1.How can I place an order for TB0900L-13-F through Aetrix?

Please submit a Request for Quotation (RFQ) for TB0900L-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 TB0900L-13-F reliable?

The price and inventory of TB0900L-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 TB0900L-13-F is usually 5 days.

3.What payment methods are accepted for TB0900L-13-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB0900L-13-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TB0900L-13-F?

TB0900L-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TB0900L-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 TB0900L-13-F?

For technical support, including TB0900L-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB0900L-13-F requirements.

6.How does Aetrix verify that TB0900L-13-F is sourced from the original manufacturer or authorized distributors?

All TB0900L-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 TB0900L-13-F meets industry standards.

7.What is the process for return or replacement of TB0900L-13-F?

All TB0900L-13-F units undergo pre-shipment inspection (PSI). If there is an issue with TB0900L-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 TB0900L-13-F part is unused and in its original packaging.

Return procedure for TB0900L-13-F:

1.Submit a request within 90 days.

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

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