Taiwan Semiconductor Corporation KBL602G

Overview

KBL602G from Taiwan Semiconductor is a 6A, 100V repetitive peak reverse voltage (V_RRM) glass-passivated standard bridge rectifier in KBL package, featuring 175A non-repetitive surge current (I_FSM), 7.5°C/W junction-to-lead thermal resistance, and UL Recognized File # E-326243 compliance - used in AC/DC front-end stages of compact switching mode power supplies.

For engineers reviewing the KBL602G datasheet, KBL602G pinout, KBL602G application, or KBL602G equivalent, key selection criteria include V_RRM = 100V, I_F = 6A, thermal performance (R_θJL = 7.5°C/W), RoHS compliance, and KBL package mechanical compatibility with PCB-mount SMPS designs.

Technical Context

The KBL602G integrates four silicon diodes in a single-phase full-wave bridge configuration with quad arrangement, enabling direct AC-to-DC conversion without external interconnection. Its glass-passivated junction ensures stable reverse leakage (<10 µA at 25°C) and robustness against humidity and contamination.

Thermally, it uses a molded plastic KBL case rated UL 94V-0, with matte tin-plated leads compliant to J-STD-002 solderability and JESD 201 Class 1A whisker resistance. Junction temperature operates from –55°C to +150°C, supporting industrial ambient conditions.

Key Specifications

Pinout & Package

Package: KBL - 4-terminal single-in-line molded plastic package (19.5 × 15.2 × 16.3 mm), UL 94V-0 rated, with matte tin-plated leads; polarity marked on body.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bridge rectifier applications.

Compared with KBL602G, GBU6K provides significantly higher reverse voltage but sacrifices thermal efficiency and board space; DBL62 offers identical mounting and near-equivalent thermal performance while extending V_RRM to 200 V - making it the preferred alternative for layout-constrained upgrades.

Availability

KBL602G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial control power supplies requiring stable component supply, UL recognition, and RoHS-compliant manufacturing.

Supply support for KBL602G 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in rectifiers, TVS diodes, MOSFETs, and power management devices.

The KBL602G belongs to TSC's standard bridge rectifier product line, engineered for cost-sensitive, high-volume AC/DC conversion in consumer and industrial power supplies where reliability, safety certification, and thermal performance are prioritized.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) of the KBL602G?

The KBL602G has a V_RRM of 100 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2308). This rating defines the highest instantaneous reverse voltage the device can block repeatedly without breakdown, corresponding to an RMS input voltage limit of approximately 70 V. Exceeding this value risks irreversible junction failure.

Does the KBL602G require a heatsink in typical 6 A operation?

The KBL602G does not require an external heatsink at 6 A continuous current if ambient temperature remains ≤50°C and PCB copper area provides adequate thermal conduction. With R_θJL = 7.5°C/W, a 25°C ambient yields ~113°C junction temperature at full load - within its 150°C TJ_MAX limit. For sustained operation above 60°C ambient, localized copper pour or lead-frame heatsinking is recommended.

Is the KBL602G RoHS compliant and lead-free?

Yes, the KBL602G is RoHS compliant and lead-free, as explicitly stated in the Features section of the Taiwan Semiconductor datasheet (Version H2308). The matte tin-plated leads meet J-STD-002 solderability requirements and contain no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE - satisfying EU Directive 2011/65/EU and related global environmental regulations.

What is the marking code printed on the KBL602G package?

The KBL602G is marked "KBL602G" on the top surface of the KBL package, along with date code (YWW format) and factory code (F), as shown in the Marking Diagram on page 4 of the official datasheet. This marking enables visual identification and traceability; no secondary silkscreen or label is required for authenticity verification.

Can the KBL602G replace the KBL601G in an existing design?

Yes, the KBL602G can directly replace the KBL601G because both share identical package (KBL), pinout, I_F = 6 A rating, and thermal specifications. The only difference is V_RRM: KBL601G = 50 V vs. KBL602G = 100 V. Upgrading improves reverse voltage margin without layout or thermal changes - provided the higher V_RRM does not introduce unintended parasitic effects in high-frequency designs.