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Diodes Incorporated TB1500H-13
- Part No.:
- TB1500H-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
TB1500H-13.pdf
- Description:
- THYRISTOR 140V 400A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:1,337
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Product details
Overview
TB1500H-13 from Diodes Incorporated is a bidirectional surface-mount thyristor surge protective device (TSPD) designed for primary-level overvoltage protection in telecom and data line interfaces. It features a 140V stand-off voltage (VDRM), 180V breakover voltage (VBO), 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, T1/E1, and ISDN line cards.
For engineers reviewing the TB1500H-13 datasheet, TB1500H-13 pinout, TB1500H-13 application, or TB1500H-13 equivalent, key selection criteria include verified bidirectional clamping behavior, low leakage (<5μA at VDRM), stable temperature coefficient of breakdown voltage (0.1%/°C), and SMB package compatibility with high-density PCB layouts in telecom infrastructure.
Technical Context
This thyristor-based TSPD operates as a voltage-triggered crowbar device: it remains in high-impedance off-state until transient voltage exceeds VBO (180V typ.), then latches into low-voltage on-state (VT ≤3.5V @1A) to divert surge energy. Its oxide-glass passivated junction ensures stable triggering across -40°C to +150°C junction temperature range.
Unlike MOVs or TVS diodes, the TB1500H-13 provides precise, repeatable breakover with minimal capacitance drift (120pF @2VDC, 1MHz) and maintains high off-state impedance (>10⁸Ω) until activation - critical for preserving signal integrity on broadband analog/digital lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | 140V - maximum continuous working voltage before conduction; defines safe operating margin for 120VAC telecom lines. |
| VBO | 180V typ. - precise DC breakover threshold ensuring reliable triggering above normal transients but below equipment damage levels. |
| Ipp (10/1000μs) | 100A - surge handling capability matching GR-1089-CORE Level 3 requirements for central office equipment. |
| CO | 120pF - low off-state capacitance minimizing insertion loss and crosstalk on high-speed data lines (e.g., ADSL2+). |
| IDRM | <5μA @140V - ultra-low leakage preserves line impedance and prevents false triggering in standby mode. |
| RθJL | 20°C/W - thermal resistance from junction to lead enables direct PCB copper pour heat sinking for repeated surge duty cycles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking required. Molded plastic case meets UL 94V-0 flammability rating; terminals feature matte tin plating per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Surge current path | Bidirectional conduction: either terminal serves as anode or cathode depending on transient polarity - eliminates orientation constraints during placement. |
| Case (exposed pad) | Thermal & mechanical anchor | Not electrically connected; provides mechanical stability and aids heat dissipation via soldered PCB copper area. |
Key Features
| Feature | Design Value |
|---|---|
| Oxide-glass passivated junction | Ensures long-term parameter stability and immunity to humidity-induced leakage drift in outdoor telecom enclosures. |
| UL Recognized Component (File E156346) | Validates compliance for end-equipment safety certification without additional system-level testing overhead. |
| 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. |
| High off-state impedance / low on-state voltage | Enables clean signal transmission during normal operation while limiting clamping voltage to ≤3.5V under 1A surge current - protects downstream PHY ICs. |
Applications
| DSL Line Card Protection | T1/E1 Interface Protection |
|---|---|
Use Scenario: Protecting ADSL2+/VDSL2 line drivers and receivers from lightning-induced surges on twisted-pair copper loops. IC Role / Device Role / Timing Role: Primary crowbar protector placed before line transformer and transceiver IC; triggers within nanoseconds upon overvoltage detection. Use Value: 120pF capacitance avoids degrading high-frequency signal integrity up to 30MHz, while 100A surge rating handles induced surges from nearby strikes. | Use Scenario: Safeguarding T1/E1 framer and line interface units (LIUs) in carrier-grade multiplexers and channel banks. IC Role / Device Role / Timing Role: Standby-mode surge shunt across balanced receive/transmit pairs; latches only during >180V transients and recovers within 30ms. Use Value: Bidirectional symmetry eliminates need for dual-device placement; 140V VDRM aligns with ±130V common-mode tolerance of T1 receivers. |
| ISDN BRI S/T Interface | Industrial Ethernet Surge Port |
Use Scenario: Overvoltage protection for ISDN Basic Rate Interface (BRI) S/T termination points in PBX and NT1 devices. IC Role / Device Role / Timing Role: First-stage protector between line and integrated line transformer; clamps fast-rising transients (e.g., K.21 200A 10/700μs) without distorting 144kbps digital signaling. Use Value: Low 5μA IDRM prevents loading of 100Ω characteristic impedance; 0.1%/°C ΔVBR/ΔTJ ensures consistent trip point across industrial temperature range. | Use Scenario: Secondary surge protection on RJ45 ports of industrial switches and PLC communication modules exposed to factory ESD and inductive switching noise. IC Role / Device Role / Timing Role: Back-to-back configured with series impedance to limit let-through energy; coordinates with downstream TVS arrays for multi-stage protection. Use Value: SMB footprint allows dense placement near connectors; 400A 8/20μs rating handles high-energy surges from motor drive ground loops. |
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 SP1003-014 | 140V VDRM, 100A Ipp (10/1000μs), but higher CO = 250pF | Less suitable for >10MHz data lines due to doubled capacitance | Prefer TB1500H-13 where signal bandwidth >15MHz is required |
| Bourns TBU-CA085-200-WH | Active current-limiting device (not thyristor); 200V standoff, 85V clamping, slower response (~100ns vs. <10ns) | Provides current limiting rather than crowbar clamping; requires external trigger circuitry | Choose TB1500H-13 for passive, self-triggered, low-clamp-voltage protection without control logic |
Compared with SP1003-014 and TBU-CA085-200-WH, TB1500H-13 delivers lower capacitance for high-speed lines and true passive crowbar action - making it optimal for telecom line cards requiring both signal fidelity and robust surge immunity without added complexity.
Availability
TB1500H-13 is available at Aetrix Electronics and suitable for DSL line card design, T1/E1 interface protection, and ISDN BRI termination requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for TB1500H-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, manufacturing, and sales operations across Asia, Europe, and the Americas.
The TB-series TSPDs are engineered specifically for telecom-grade surge protection - emphasizing precise breakover voltage control, bidirectional symmetry, and reliability under repeated high-energy transients in carrier-class infrastructure.
FAQ
What is the maximum operating temperature for TB1500H-13?
The TB1500H-13 has a specified junction temperature range of -40°C to +150°C. Its thermal resistance junction-to-lead (RθJL) is 20°C/W, allowing sustained operation at full-rated surge current when mounted on ≥100mm² of 1oz copper with thermal vias - validated per JEDEC JESD51-2.
Does TB1500H-13 require a gate trigger or external circuitry?
No. The TB1500H-13 is a three-layer bidirectional thyristor that triggers autonomously when applied voltage exceeds its breakover voltage (VBO = 180V typ.). It requires no gate drive, biasing, or supporting components - functioning as a fully passive crowbar device.
How does TB1500H-13 differ from standard TVS diodes in surge response?
Unlike avalanche-based TVS diodes, TB1500H-13 exhibits sharp, latch-up behavior after triggering - maintaining low on-state voltage (≤3.5V) until current falls below holding current (IH = 150–800mA). This provides superior energy handling per unit capacitance and eliminates clamping voltage rise under high-current surges.
Is TB1500H-13 compliant with RoHS and REACH regulations?
Yes. TB1500H-13 carries a lead-free finish and is RoHS-compliant per EU Directive 2002/95/EC (with applicable exemptions), and uses halogen-free, antimony-free green molding compound - certified per IEC 61249-2-21 and REACH SVHC-free declarations.
TB1500H-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Voltage - Breakover:
- 180V
- Voltage - Off State:
- 140V
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
TB1500H-13 FAQ
1.How can I place an order for TB1500H-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for TB1500H-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 TB1500H-13 reliable?
The price and inventory of TB1500H-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB1500H-13 is usually 5 days.
3.What payment methods are accepted for TB1500H-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB1500H-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB1500H-13?
TB1500H-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB1500H-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 TB1500H-13?
For technical support, including TB1500H-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB1500H-13 requirements.
6.How does Aetrix verify that TB1500H-13 is sourced from the original manufacturer or authorized distributors?
All TB1500H-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 TB1500H-13 meets industry standards.
7.What is the process for return or replacement of TB1500H-13?
All TB1500H-13 units undergo pre-shipment inspection (PSI). If there is an issue with TB1500H-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 TB1500H-13 part is unused and in its original packaging.
Return procedure for TB1500H-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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