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

Diodes Incorporated TB0900H-13-F

Name: TB0900H-13-F
Brand: Diodes Incorporated
SKU: TB0900H-13-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TB0900H-13-F

Manufacturer:: Diodes Incorporated

Category:: Thyristors

Package:: DO-214AA, SMB

Datasheet:: TB0900H-13-F.pdf

Description:: THYRISTOR 75V 400A DO-214AA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TB0900H-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 75 V maximum repetitive off-state voltage (VDRM), 98 V breakover voltage (VBO), 100 A peak pulse current at 10/1000 μs, 400 A at 8/20 μs, and 200 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 TB0900H-13-F datasheet, TB0900H-13-F pinout, TB0900H-13-F application, or TB0900H-13-F equivalent, key selection criteria include stand-off voltage margin vs. line operating voltage, bidirectional clamping symmetry, surge current derating at elevated ambient temperature, and low off-state capacitance for high-speed signal integrity.

Technical Context

This TSPD operates as a voltage-triggered, self-resetting crowbar device with oxide-glass passivated junction. Its bidirectional structure eliminates polarity concerns, while the 0.1 %/°C positive temperature coefficient of breakdown voltage ensures predictable voltage drift across –40 °C to +150 °C junction range.

It sustains 50 A non-repetitive on-state current for 8.3 ms (half-cycle), exhibits ≤3.5 V on-state voltage at 1 A, and recovers to high-impedance state within ≤30 ms after surge termination - meeting UL497B and ITU-T K.20/K.21 requirements for telecom primary protection.

Key Specifications

Parameter	Value and Actual Design Meaning
VDRM	75 V - Maximum continuous DC or RMS AC voltage before conduction; sets minimum margin above 56 V nominal DSL line voltage.
VBO	98 V - Breakover voltage threshold where device latches into low-impedance state; defines clamping onset for transient suppression.
I_PP @ 10/1000μs	100 A - Peak surge current handling per GR-1089-CORE; determines survivability against lightning-induced surges.
I_PP @ 8/20μs	400 A - Higher-energy surge rating per IEC 61000-4-5; supports equipment-level immunity testing.
C_O	200 pF - Off-state capacitance at 2 VDC bias and 1 MHz; limits insertion loss and signal distortion on broadband lines.
I_H	150–800 mA - Holding current range; ensures reliable reset after surge when load current drops below this threshold.
R_θJA	100 °C/W - Junction-to-ambient thermal resistance; informs PCB copper area and airflow requirements for power dissipation.

Pinout & Package

Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking required. Molded plastic case rated UL 94V-0; matte tin-plated terminals, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (A/K)	Bidirectional main terminals	Interchangeable due to symmetrical thyristor structure; both pins conduct equally in either direction during surge event.
Case	Non-electrical mechanical reference	No internal connection; serves only as thermal path and mounting interface - not used for circuit grounding or signal reference.

Key Features

Feature	Design Value
Bidirectional clamping	Enables single-device protection of AC-coupled or differential telecom lines without polarity constraints.
Oxide-glass passivated junction	Ensures stable VBO and low leakage (<5 µA at 75 V) over lifetime and temperature extremes.
High off-state impedance / low on-state voltage	Maintains signal integrity during normal operation while limiting clamping voltage to ≤3.5 V under 1 A load current.
UL Recognized Component	Listed under File E156346, supporting regulatory certification for telecom infrastructure equipment.
Green molding compound	Halogen- and antimony-free package material compliant with environmental directives beyond RoHS.

Applications

DSL Line Protection

T1/E1 Interface Protection

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

IC Role / Device Role / Timing Role: Primary crowbar-type surge protector placed before line transformer and receiver IC.

Use Value: Clamps transients to <100 V while maintaining <200 pF capacitance to preserve >12 MHz signal bandwidth.

Use Scenario: Safeguarding T1/E1 framer and transceiver circuits in telecom central office and CPE equipment.

IC Role / Device Role / Timing Role: First-stage overvoltage clamp on balanced receive/transmit pairs per ANSI T1.413 and ITU-T G.703.

Use Value: Withstands 400 A (8/20 μs) surges and resets autonomously within 30 ms, eliminating need for manual reset or fuse replacement.

PoE Data Pair Protection

Industrial Ethernet Port Protection

Use Scenario: Securing IEEE 802.3af/at data lines carrying both power and 100BASE-TX signals.

IC Role / Device Role / Timing Role: Bidirectional transient suppressor on each data pair, placed upstream of magnetics and PHY.

Use Value: 75 V VDRM provides 25% margin above 60 V PoE open-circuit voltage, preventing false triggering during normal operation.

Use Scenario: Hardening RJ45 ports in factory automation controllers exposed to ESD and inductive switching noise.

IC Role / Device Role / Timing Role: Secondary surge limiter complementing TVS diodes, handling higher-energy events per IEC 61000-4-5 Level 4.

Use Value: 100 °C/W R_θJA allows direct mounting on 1 oz. copper with thermal relief, supporting continuous operation up to +85 °C ambient.

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
SMCJ75CA	Unidirectional TVS diode; 75 V standoff, 400 W peak power, 1000 W surge rating at 10/1000 μs.	Lacks self-resetting capability; requires external current limiting or fuse for sustained overvoltage.	Select when lower cost and faster response (<1 ns) are prioritized over autonomous recovery and high-current surge endurance.
TB1100H-13-F	Higher 90 V VDRM and 130 V VBO; same SMB package and 400 A 8/20 μs rating.	Better suited for 75–85 V nominal systems (e.g., extended-range PoE++, industrial 24 VDC lines).	Choose when system operating voltage exceeds 75 V but still requires identical footprint and thermal performance.

Compared with SMCJ75CA, TB0900H-13-F offers automatic reset and higher surge current capacity, while TB1100H-13-F extends voltage margin without changing layout - making TB0900H-13-F optimal for 56–60 V telecom and standard PoE interfaces requiring reliable, maintenance-free protection.

Availability

TB0900H-13-F is available at Aetrix Electronics and suitable for DSL line cards, T1/E1 interface modules, and PoE-powered endpoint devices requiring stable component supply, long-term lifecycle support, and consistent surge performance across production batches.

Supply support for TB0900H-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.

TB0900H-13-F belongs to the TBxxxH series of bidirectional TSPDs engineered specifically for primary-level surge protection in telecom infrastructure and data communication interfaces - emphasizing robustness, bidirectional symmetry, and regulatory compliance.

FAQ

What is the maximum continuous operating voltage for TB0900H-13-F?

The maximum repetitive off-state voltage (VDRM) is 75 V DC or RMS AC. This is the highest steady-state voltage the device blocks without triggering. Operation above this value risks unintended conduction; design margin should be maintained relative to system nominal voltage, especially under temperature variation and tolerance stack-up.

Does TB0900H-13-F require a series current-limiting resistor?

No external current-limiting resistor is required for transient suppression, as the device latches and holds low impedance until line current falls below its holding current (150–800 mA). However, a fuse or PTC may be used downstream to protect against sustained overcurrent if the protected circuit cannot naturally limit current post-trigger.

How does temperature affect the breakover voltage of TB0900H-13-F?

Breakover voltage has a +0.1 %/°C positive temperature coefficient. At +125 °C junction temperature, VBO increases by ~10% versus 25 °C - from 98 V to approximately 108 V. This shift must be accounted for in designs where surge threshold consistency across temperature is critical.

Can TB0900H-13-F be used in automotive applications?

TB0900H-13-F is not qualified to AEC-Q101 and lacks automotive-specific validation (e.g., ISO 7637-2 pulse testing, extended temperature cycling). While its -40 °C to +150 °C junction range meets automotive ambient extremes, its surge standards alignment (GR-1089, ITU-T) targets telecom - not vehicle E/E architecture requirements.

TB0900H-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):: 400 A

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

Current - Hold (Ih):: 150 mA

Number of Elements:: 1

Capacitance:: 200pF

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMB

TB0900H-13-F FAQ

1.How can I place an order for TB0900H-13-F through Aetrix?

Please submit a Request for Quotation (RFQ) for TB0900H-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 TB0900H-13-F reliable?

The price and inventory of TB0900H-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 TB0900H-13-F is usually 5 days.

3.What payment methods are accepted for TB0900H-13-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB0900H-13-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TB0900H-13-F?

TB0900H-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TB0900H-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 TB0900H-13-F?

For technical support, including TB0900H-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB0900H-13-F requirements.

6.How does Aetrix verify that TB0900H-13-F is sourced from the original manufacturer or authorized distributors?

All TB0900H-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 TB0900H-13-F meets industry standards.

7.What is the process for return or replacement of TB0900H-13-F?

All TB0900H-13-F units undergo pre-shipment inspection (PSI). If there is an issue with TB0900H-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 TB0900H-13-F part is unused and in its original packaging.

Return procedure for TB0900H-13-F:

1.Submit a request within 90 days.

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

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