Infineon Technologies BAR 63-02W E6127

Overview

BAR 63-02W E6127 from Infineon Technologies is a silicon PIN diode optimized for high-speed RF signal switching in series configuration, featuring 0.6 nH series inductance, ≤0.3 pF capacitance at 100 MHz–1.8 GHz, and forward resistance of 1.2 Ω (typ.) at 5 mA/100 MHz. It supports up to 3 GHz operation with 0.11 dB insertion loss at 1.8 GHz (IF = 5 mA) and is qualified per AEC-Q101 for automotive RF front-end modules.

For engineers reviewing the BAR 63-02W E6127 datasheet, BAR 63-02W E6127 pinout, BAR 63-02W E6127 application, or BAR 63-02W E6127 equivalent, key selection criteria include RF isolation performance at 0.9–2.45 GHz, low-series-inductance SCD80 package suitability for 50 Ω impedance-matched paths, and thermal derating behavior above 115°C junction temperature.

Technical Context

This PIN diode operates as a voltage-controlled RF series switch: forward bias reduces rf to ~1.2 Ω for low-loss signal path conduction; reverse bias maximizes ISO (>12.3 dB at 1.8 GHz) via ultra-low CT (≤0.3 pF) and high RP (>500 kΩ at 100 MHz). Its I-region width of 4.5 µm enables nanosecond-scale τ_rr (75 ns typ.) for fast TDD switching.

Designed for DC–3 GHz RF routing, it uses a single, leadless SCD80 package with anode/cathode terminals defined by physical orientation-not internal topology-supporting series-switch topologies in antenna tuning, TR switching, and LTE/WiFi front-end modules where insertion loss <0.15 dB and isolation >10 dB at 2.45 GHz are required.

Key Specifications

Pinout & Package

BAR 63-02W E6127 is housed in the SCD80 (SC-79 variant) surface-mount package: 1.3 mm × 0.7 mm × 0.5 mm, leadless, single-diode configuration with cathode marked by white dot. Thermal resistance R_thJS ≤ 140 K/W enables reliable 250 mW dissipation at T_S ≤ 115°C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PIN diode RF switching applications.

Compared with MADP-000907-14020T and SMS7630-061LF, BAR 63-02W E6127 uniquely balances AEC-Q101 qualification, 0.6 nH LS for 50 Ω integration, and 0.11 dB IL at 1.8 GHz-making it optimal for space-constrained, thermally demanding automotive and mobile RF front ends.

Availability

BAR 63-02W E6127 is available at Aetrix Electronics and suitable for automotive V2X modules, smartphone antenna tuning systems, and WiFi 6E beamforming arrays requiring stable component supply across extended temperature ranges and high-frequency performance consistency.

Supply support for BAR 63-02W E6127 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, RF, and automotive ICs, with leadership in silicon-based RF components for wireless infrastructure and mobility applications.

BAR 63-02W E6127 belongs to Infineon's high-frequency PIN diode product line, engineered specifically for DC–3 GHz RF switching in automotive-grade and space-constrained mobile front-end modules.

FAQ

What is the maximum RF frequency supported by BAR 63-02W E6127?

The device is characterized and specified for operation up to 3 GHz, with measured isolation >10 dB and insertion loss <0.15 dB across 0.9–2.45 GHz. Performance beyond 2.45 GHz degrades gradually due to rising CT and parasitic effects, but functional switching remains validated to 3 GHz per Infineon's AC characterization data.

Does BAR 63-02W E6127 require external DC blocking capacitors?

No external DC blocking capacitor is required when used in series-switch configuration with proper RF choke biasing. The SCD80 package's intrinsic 0.6 nH series inductance and low CT enable direct integration into 50 Ω transmission lines; however, a 100 pF RF bypass at the cathode is recommended to suppress bias-line resonance.

How does BAR 63-02W E6127 compare to BAR 63-02V in thermal performance?

Both share identical R_thJS ≤ 140 K/W and T_j = 150 °C, but BAR 63-02W is rated for T_S ≤ 115 °C while BAR 63-02V is rated for T_S ≤ 115 °C-identical thermal limits. The "W" suffix denotes tape-and-reel packaging and AEC-Q101 qualification; no electrical or thermal differentiation exists between -02V and -02W die.

Can BAR 63-02W E6127 be used in shunt-switch topology?

Yes, but with reduced isolation compared to series configuration. In shunt mode, CT dominates isolation performance; measured ISO drops to ~8 dB at 1.8 GHz due to lack of series inductance cancellation. For shunt applications, Infineon recommends BAR 63-03W (common-cathode dual) or discrete layout optimization with ground-via placement.