Diodes Incorporated TB1300L-13-F

Overview

TB1300L-13-F from Diodes Incorporated is a bidirectional surface-mount thyristor surge protective device (TSPD) designed for primary-level transient overvoltage suppression in telecom and data line interfaces. It features a 120V maximum repetitive off-state voltage (V_DRM), 30A peak pulse current (I_PP) at 10/1000μs, 160V breakover voltage (V_BO), 3.5V on-state voltage at 1A, and 60pF 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 TB1300L-13-F datasheet, TB1300L-13-F pinout, TB1300L-13-F application, or TB1300L-13-F equivalent, key selection criteria include stand-off voltage margin relative to line DC bias, hold current stability across -40°C to +150°C, surge waveform response (8/20μs vs. 10/1000μs), and SMB package thermal resistance (R_θJL = 30°C/W) for PCB layout-driven power dissipation management.

Technical Context

This bidirectional TSPD operates as a voltage-triggered crowbar device: it remains high-impedance below V_DRM (120V), transitions sharply to low-impedance conduction upon reaching V_BO (160V ±15%), and latches on until current falls below I_H (150–800mA). Its oxide-glass passivated junction ensures stable breakdown characteristics with only 0.1%/°C temperature coefficient.

Unlike unidirectional TVS diodes, it provides symmetrical clamping without polarity constraints - critical for AC-coupled telecom lines. The 60pF off-state capacitance minimizes signal distortion on broadband interfaces up to 10 MHz, while its 15A non-repetitive on-state current rating supports single-event surge handling without thermal runaway under proper PCB copper area design.

Key Specifications

Pinout & Package

Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking required. Case material is UL 94V-0 molded plastic; terminals are matte tin-plated for RoHS-compliant solderability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SM120A-SMB and P6SMB120A, TB1300L-13-F delivers superior high-frequency performance (60pF) and true single-device bidirectionality - reducing BOM count and improving reliability in telecom line cards where signal bandwidth and surge symmetry are critical.

Availability

TB1300L-13-F is available at Aetrix Electronics and suitable for DSL line card protection, T1/E1 interface hardening, and ISDN BRI surge suppression requiring stable component supply and full traceability through J-STD-020 Level 1 moisture sensitivity compliance.

Supply support for TB1300L-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, manufacturing, and sales operations across Asia, Europe, and North America.

TB1300L-13-F belongs to the TB0640L–TB3500L series of bidirectional TSPDs engineered specifically for primary-level surge protection in telecom infrastructure, meeting GR-1089-CORE, IEC 61000-4-5, and UL497B standards.

FAQ

What is the maximum operating temperature for TB1300L-13-F?

The TB1300L-13-F has a specified junction temperature range of -40°C to +150°C and a storage temperature range of -55°C to +150°C. Its thermal resistance (R_θJL = 30°C/W) allows sustained operation at full 30A surge current when mounted on ≥100 mm² copper area, provided ambient temperature remains ≤85°C per derating curves in DS30359 Rev. 9-2.

Does TB1300L-13-F require a heatsink for standard surge events?

No external heatsink is required. The SMB package's exposed metal slug and R_θJL = 30°C/W enable adequate thermal transfer to PCB copper. For repeated 30A 10/1000μs surges, Diodes Incorporated recommends ≥2 oz copper on inner layers and ≥4 oz on outer layers beneath the device, per Figure 5 layout guidelines in DS30359.

How does TB1300L-13-F differ from standard TVS diodes in surge response?

TB1300L-13-F is a thyristor-based TSPD with latching behavior: once triggered, it remains conductive until current drops below 150–800mA holding threshold. Standard TVS diodes clamp non-latching and recover instantly. This makes TB1300L-13-F more effective for long-duration surges (e.g., 10/1000μs) but requires careful circuit design to ensure natural current zero-crossing.

Is TB1300L-13-F compliant with lead-free assembly processes?

Yes - TB1300L-13-F features matte tin-plated terminals qualified to MIL-STD-202 Method 208 and is RoHS-compliant per EU Directive 2002/95/EC. It supports standard Pb-free reflow profiles (peak 260°C, 10-second dwell) and meets J-STD-020 Level 1 moisture sensitivity without baking.