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Diodes Incorporated TB1500M-13
- Part No.:
- TB1500M-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
TB1500M-13.pdf
- Description:
- THYRISTOR 140V 250A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,875
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Product details
Overview
TB1500M-13 from Diodes Incorporated is a bi-directional 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), 50A peak pulse current (10/1000µs), 250A peak impulse current (8/20µs), and 90pF off-state capacitance - enabling robust GR-1089-CORE and IEC 61000-4-5 compliance in DSL, T1/E1, and PoE-powered equipment.
For engineers reviewing the TB1500M-13 datasheet, TB1500M-13 pinout, TB1500M-13 application, or TB1500M-13 equivalent, this device delivers verified bi-directional clamping with low on-state voltage (3.5V @ 1A), stable thermal performance (RJL = 20°C/W), and UL recognition (File #156346) - critical for telecom surge protection design, line-card transient immunity validation, and high-reliability interface hardening.
Technical Context
This TSPD operates as a voltage-triggered silicon bilateral switch, entering low-impedance conduction when transient voltage exceeds its 180V breakover threshold (VBO), then sustaining conduction until current falls below 150–800mA holding current (IH). Its oxide-glass passivated junction ensures stable leakage (<5µA at 140V) across –40°C to +150°C junction temperature range.
The device exhibits positive temperature coefficient for VBO (+0.1%/°C), enabling predictable voltage margin shift under thermal stress, and maintains <90pF off-state capacitance at 1MHz/2VDC bias - minimizing signal distortion in high-speed data lines such as ADSL2+ and G.fast interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | 140V - Maximum continuous reverse/forward blocking voltage before triggering; defines operating voltage ceiling for protected line. |
| VBO | 180V - Breakover voltage threshold at which device switches to low-impedance state; sets precise clamping onset for transients. |
| Ipp (10/1000µs) | 50A - Peak surge current handling for long-duration lightning-induced surges; validates GR-1089-CORE Level 3 compliance. |
| Ipp (8/20µs) | 250A - High-energy surge capability for fast-rising transients per IEC 61000-4-5; supports telecom central office surge requirements. |
| CO | 90pF - Off-state junction capacitance at 1MHz/2VDC; ensures minimal insertion loss and signal integrity on ≤30MHz data lines. |
| RJL | 20°C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour heatsinking without external thermal pads. |
| IDRM | <5µA @ 140V - Low leakage ensures no DC loading on protected line during normal operation; critical for high-impedance analog interfaces. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bi-directional, polarity-free case with solderable matte-tin plated terminals. Dimensions: 4.06–4.57mm (L) × 3.30–3.94mm (W) × 1.96–2.21mm (H); UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (A/K) | Bi-directional main terminals | No polarity marking; either terminal serves as anode or cathode depending on transient polarity - simplifies PCB layout and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| UL Recognized Component | File E156346 - Enables direct use in UL-certified telecom equipment without additional system-level retesting. |
| Oxide-glass passivated junction | Stable VBO and IDRM over lifetime and humidity exposure - meets Telcordia GR-1089-CORE reliability requirements. |
| Bi-directional clamping | Single-device protection against both positive and negative transients - reduces BOM count vs. dual-diode TVS solutions. |
| Low on-state voltage | 3.5V @ 1A - Minimizes power dissipation during clamping, limiting thermal stress during repeated surge events. |
Applications
| DSL Line Interface Protection | T1/E1 Data Line 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-level crowbar device that triggers before downstream ICs reach breakdown, diverting >250A (8/20µs) away from PHY transceivers. Use Value: Maintains 90pF capacitance to preserve signal integrity up to 17MHz while meeting ITU-T K.21 Class B immunity requirements. |
Use Scenario: Hardening T1/E1 framer interfaces in network access devices exposed to induced surges in central office or remote terminal environments. IC Role / Device Role / Timing Role: Standoff-clamp protector placed ahead of line transformers and receiver input stages to prevent latch-up or permanent damage. Use Value: 140V VDRM aligns with ±120V nominal T1 line voltage swing; 50A (10/1000µs) rating satisfies GR-1089-CORE Level 3 long-duration surge tests. |
| PoE-Powered Equipment | Industrial Ethernet Port Protection |
|
Use Scenario: Safeguarding IEEE 802.3af/at PD (Powered Device) inputs against surges coupled onto power-sourcing pairs. IC Role / Device Role / Timing Role: First-stage protector on PSE-side or PD-side DC power lines, triggered before secondary TVS or fuse activation. Use Value: Bi-directional operation handles both differential and common-mode surges on 48V DC PoE lines without polarity constraints. |
Use Scenario: Protecting 10/100BASE-TX PHY ports in industrial gateways and PLCs subjected to EFT and surge in factory-floor environments. IC Role / Device Role / Timing Role: Line-side transient suppressor mounted directly at RJ45 connector, shunting energy before magnetics and PHY ICs. Use Value: UL recognition and 250A (8/20µs) rating support IEC 61000-4-5 Level 4 compliance in harsh EMC environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TSPD surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB1300M-13 | 120V VDRM, 160V VBO - lower clamping threshold than TB1500M-13's 140V/180V. | Better suited for 100V-class systems (e.g., legacy ISDN) where tighter voltage margin is required. | Select when protecting circuits with lower maximum steady-state line voltage and stricter VBO tolerance. |
| TB1800M-13 | 160V VDRM, 220V VBO - higher standoff and breakover voltages than TB1500M-13. | Preferred for 150V+ AC-coupled telecom lines or hybrid analog-digital interfaces requiring wider voltage headroom. | Choose when system nominal voltage exceeds 140V or when enhanced margin against false triggering is needed. |
Compared with TB1300M-13 and TB1800M-13, TB1500M-13 provides optimal balance between 140V system compatibility and 180V clamping precision - making it the default selection for modern DSL, PoE, and T1/E1 designs operating near 130–150V nominal ranges.
Availability
TB1500M-13 is available at Aetrix Electronics and suitable for DSL line interface protection, T1/E1 data line hardening, and PoE-powered equipment requiring stable component supply, UL-recognized surge suppression, and consistent SMB package form factor.
Supply support for TB1500M-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, specializing in high-reliability protection, power management, and signal integrity solutions for communications and industrial markets.
TB1500M-13 belongs to the TBxxx0M bi-directional TSPD product line, engineered specifically for primary-level telecom surge protection with UL recognition, tight VBO tolerance, and low-capacitance performance in SMB packages.
FAQ
Is TB1500M-13 polarity-sensitive during PCB placement?
No. TB1500M-13 is a bi-directional thyristor with no anode/cathode marking or polarity indicator. Either terminal functions as anode or cathode depending on transient polarity, eliminating orientation constraints during automated assembly and reducing placement error risk.
What is the maximum recommended trace width for TB1500M-13 anode/cathode pads?
For reliable 250A (8/20µs) surge handling, Diodes recommends ≥2.0mm wide, 2oz copper traces connected directly to thermal vias and internal ground/power planes. The 20°C/W junction-to-lead thermal resistance assumes adequate copper area; narrower traces increase thermal impedance and reduce surge endurance.
Does TB1500M-13 require external gate control or bias circuitry?
No. TB1500M-13 is a passive, voltage-triggered device with no gate terminal. It switches automatically when applied voltage exceeds its 180V breakover threshold (VBO), then latches on until current drops below its 150–800mA holding current (IH) - no external drive or timing circuitry is needed.
Can TB1500M-13 be used in parallel for higher surge current handling?
Not recommended. TB1500M-13 lacks matched dynamic impedance characteristics for forced current sharing. Parallel connection risks uneven current division, leading to premature failure of one device. For >250A capability, select a higher-rated part like TB2300M-13 (250A @ 8/20µs, 300A @ 10/1000µs) instead.
TB1500M-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:
- 180V
- Voltage - Off State:
- 140V
- 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:
- 90pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
TB1500M-13 FAQ
1.How can I place an order for TB1500M-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for TB1500M-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 TB1500M-13 reliable?
The price and inventory of TB1500M-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB1500M-13 is usually 5 days.
3.What payment methods are accepted for TB1500M-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB1500M-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB1500M-13?
TB1500M-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB1500M-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 TB1500M-13?
For technical support, including TB1500M-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB1500M-13 requirements.
6.How does Aetrix verify that TB1500M-13 is sourced from the original manufacturer or authorized distributors?
All TB1500M-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 TB1500M-13 meets industry standards.
7.What is the process for return or replacement of TB1500M-13?
All TB1500M-13 units undergo pre-shipment inspection (PSI). If there is an issue with TB1500M-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 TB1500M-13 part is unused and in its original packaging.
Return procedure for TB1500M-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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