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Diodes Incorporated TB0640M-13-F
- Part No.:
- TB0640M-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
TB0640M-13-F.pdf
- Description:
- THYRISTOR 58V 250A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:1,514
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Product details
Overview
TB0640M-13-F from Diodes Incorporated is a bidirectional surface-mount thyristor surge protection device (TSPD) designed for primary-level transient voltage suppression in telecom and data line interfaces. It features a 58 V maximum repetitive off-state voltage (VDRM), 50 A peak pulse current (10/1000 µs), 77 V breakover voltage (VBO), 3.5 V on-state voltage at 1 A, and 140 pF off-state capacitance - enabling robust GR-1089-CORE and IEC 61000-4-5 compliance in DSL, T1/E1, and analog telephone line protection.
For engineers reviewing the TB0640M-13-F datasheet, TB0640M-13-F pinout, TB0640M-13-F application, or TB0640M-13-F equivalent, key selection criteria include stand-off voltage margin relative to line DC bias, hold-current stability over temperature, surge waveform derating (e.g., 250 A @ 8/20 µs), junction-to-lead thermal resistance (20 °C/W), and SMB package compatibility with automated PCB assembly.
Technical Context
This bidirectional TSPD operates as a voltage-triggered crowbar device: it remains high-impedance below 58 V, triggers at 77 V (VBO), clamps to ≤3.5 V during conduction, and sustains latching until current falls below 150–800 mA holding current (IH). Its oxide-glass passivated junction ensures stable breakdown characteristics across -40 °C to +150 °C.
Unlike unidirectional TVS diodes, it provides symmetrical protection without polarity constraints and exhibits low capacitance (140 pF) at 2 V reverse bias - critical for preserving signal integrity in broadband telecom interfaces up to 1 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | 58 V - Maximum continuous DC or RMS operating voltage before triggering; sets minimum line bias margin for safe standby operation. |
| VBO | 77 V - Breakover voltage threshold at which device switches from high-impedance to low-impedance state under surge stress. |
| Ipp (10/1000 µs) | 50 A - Peak surge current handling capability per IEEE/IEC standard waveform; defines primary-level lightning/surge immunity. |
| VT @ IT = 1 A | 3.5 V - On-state clamping voltage during conduction; determines power dissipation (3.5 W) and downstream circuit stress during fault. |
| CO @ 1 MHz, 2 V | 140 pF - Off-state junction capacitance; directly impacts high-frequency insertion loss and bandwidth in data-line applications. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; enables accurate thermal design for repeated surge events in confined board layouts. |
| IDRM @ VDRM | 5 µA - Maximum leakage at rated stand-off voltage; ensures minimal standby power loss and noise coupling in always-on lines. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional, non-polarized case with matte tin-plated terminals. UL 94V-0 molded plastic body, 0.093 g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Surge current path | Identical terminals; no polarity marking - enables single-component protection of AC or differential signal lines without orientation constraints. |
| Case (plastic body) | Thermal interface | Non-conductive housing; heat transfer occurs via solder joints to PCB copper; requires adequate thermal pad area for RθJL = 20 °C/W performance. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional surge clamping | Enables single-device protection of AC-coupled or differential telecom lines (e.g., POTS, xDSL) without external polarity management. |
| Oxide-glass passivated junction | Ensures stable VBO and low ΔVBR/ΔTj (0.1 %/°C), minimizing trigger voltage drift across industrial temperature range (-40 to +150 °C). |
| UL Recognized Component (File E156346) | Validates compliance with UL497B for telecom primary protection, reducing certification effort for end-equipment manufacturers. |
| Green molding compound (halogen-free) | Meets IEC 61249-2-21 and JEDEC J-STD-020 requirements for RoHS-compliant, environmentally sustainable manufacturing. |
Applications
| DSL Line Protection | T1/E1 Interface Protection |
|---|---|
Use Scenario: Protecting ADSL/VDSL line cards from lightning-induced surges on twisted-pair subscriber loops. IC Role / Device Role / Timing Role: Primary crowbar-type surge suppressor placed before line transformer and codec IC. Use Value: Clamps transients to ≤3.5 V while sustaining 50 A (10/1000 µs), preventing damage to sensitive analog front-end components. | Use Scenario: Safeguarding T1/E1 framer and line driver circuits in telecom central office equipment. IC Role / Device Role / Timing Role: Bidirectional overvoltage protector on balanced 100 Ω transmission lines. Use Value: 140 pF capacitance preserves signal rise time and jitter performance up to 2.048 MHz while meeting ITU-T K.20/K.21 immunity requirements. |
| Analog Telephone Line (POTS) | ISDN BRI Protection |
Use Scenario: Surge protection for plain old telephone service (POTS) line interface units in VoIP gateways and PBX systems. IC Role / Device Role / Timing Role: Standby-mode protector between tip/ring and line interface IC. Use Value: 5 µA max leakage at 58 V ensures negligible standby current draw and avoids false triggering on ringing signals (90 VAC). | Use Scenario: Transient suppression on ISDN Basic Rate Interface (BRI) S/T bus lines carrying 144 kbps digital signals. IC Role / Device Role / Timing Role: High-speed bidirectional clamp on differential D- and B-channel pairs. Use Value: Symmetrical 77 V VBO and fast recovery (<30 ms) maintain protocol timing integrity during surge events without latch-up. |
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 SP1003-058 | Same VDRM (58 V), but higher VBO (85 V); 40 A Ipp (10/1000 µs); SMB package. | Lower surge rating may limit use in high-exposure outdoor DSLAM deployments. | Select when lower cost or alternate supply chain is prioritized over 50 A margin. |
| Bourns TBU-CA085-200-WH | Not a thyristor: TBU (temporary bypass unit); 85 V trip voltage; 200 A @ 8/20 µs; different failure mode (self-resetting). | Used where automatic reset after surge is required; not suitable for crowbar-latching architectures. | Choose only if system design accommodates active reset logic and tolerates higher trip voltage uncertainty. |
Compared with SP1003-058 and TBU-CA085-200-WH, TB0640M-13-F delivers higher 50 A surge margin and precise 77 V VBO for deterministic clamping - making it optimal for fixed-threshold, high-reliability telecom line protection where latching behavior is acceptable and managed.
Availability
TB0640M-13-F is available at Aetrix Electronics and suitable for DSL line protection, T1/E1 interface hardening, analog telephone line safeguarding, and ISDN BRI surge suppression requiring stable component supply across multi-year telecom infrastructure programs.
Supply support for TB0640M-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, headquartered in Plano, Texas, with design, marketing, and logistics operations across Asia, Europe, and the Americas.
TB0640M-13-F belongs to Diodes' TB-series bidirectional TSPDs - engineered specifically for primary-level surge immunity in telecom infrastructure, emphasizing robust VBO stability, low clamping voltage, and UL-recognized reliability in harsh electrical environments.
FAQ
What is the maximum continuous operating voltage for TB0640M-13-F?
The maximum repetitive off-state voltage (VDRM) is 58 V DC or RMS. This is the highest steady-state voltage the device can block without triggering. Operation above this voltage risks unintended conduction; design margin should account for line ripple, temperature drift, and long-term degradation per GR-1089-CORE guidelines.
Does TB0640M-13-F require a gate drive or external trigger circuit?
No. TB0640M-13-F is a three-layer bidirectional thyristor with intrinsic breakover triggering - it switches automatically when voltage across its terminals exceeds 77 V (VBO). No gate connection, biasing, or control logic is needed, simplifying PCB layout and reducing BOM count.
How does TB0640M-13-F behave after a surge event?
After triggering, it latches in low-impedance state until current drops below the holding current (IH = 150–800 mA). Recovery is passive and automatic once line current falls - typical recovery time is <30 ms. Unlike resettable fuses or TVS diodes, it does not self-reset during sustained overcurrent.
Can TB0640M-13-F be used in automotive applications?
No. TB0640M-13-F is qualified for telecom and industrial environments per GR-1089-CORE, IEC 61000-4-5, and UL497B - not AEC-Q200. Its junction temperature range (-40 to +150 °C) overlaps automotive specs, but it lacks automotive-specific qualification, vibration testing, or PPAP documentation required for vehicle systems.
TB0640M-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:
- 77V
- Voltage - Off State:
- 58V
- 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:
- 140pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
TB0640M-13-F FAQ
1.How can I place an order for TB0640M-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for TB0640M-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 TB0640M-13-F reliable?
The price and inventory of TB0640M-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 TB0640M-13-F is usually 5 days.
3.What payment methods are accepted for TB0640M-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB0640M-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB0640M-13-F?
TB0640M-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB0640M-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 TB0640M-13-F?
For technical support, including TB0640M-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB0640M-13-F requirements.
6.How does Aetrix verify that TB0640M-13-F is sourced from the original manufacturer or authorized distributors?
All TB0640M-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 TB0640M-13-F meets industry standards.
7.What is the process for return or replacement of TB0640M-13-F?
All TB0640M-13-F units undergo pre-shipment inspection (PSI). If there is an issue with TB0640M-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 TB0640M-13-F part is unused and in its original packaging.
Return procedure for TB0640M-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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