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Home > Products > Discrete Semiconductor Products > Diodes > RF Diodes

Infineon Technologies BAR66E6327HTSA1

Name: BAR66E6327HTSA1
Brand: Infineon Technologies
SKU: BAR66E6327HTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BAR66E6327HTSA1

Manufacturer:: Infineon Technologies

Category:: RF Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BAR66E6327HTSA1.pdf

Description:: RF DIODE PIN 150V 250MW SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:132,012

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Product details

Overview

BAR66E6327HTSA1 from Infineon Technologies is a dual-pin silicon PIN diode array configured in antiparallel for transient voltage suppression, with 150 V reverse voltage rating, 12 A peak pulse current (8/20 µs), and 25 kV ESD contact discharge immunity-used in USB port and HDMI interface surge protection circuits.

For engineers reviewing the BAR66E6327HTSA1 datasheet, BAR66E6327HTSA1 pinout, BAR66E6327HTSA1 application, or BAR66E6327HTSA1 equivalent, key selection criteria include clamping voltage under IEC61000-4-5 stress, zero-bias capacitance at 100 MHz, forward resistance at 100 MHz, junction-to-soldering-point thermal resistance, and SOT23 package compatibility with high-density PCB layouts.

Technical Context

This dual-diode array operates in antiparallel configuration to provide bidirectional overvoltage clamping. Its low 0.35–0.6 pF capacitance at 35 V reverse bias and 220 µS zero-bias conductance enable minimal signal distortion in high-speed data lines up to 1 GHz.

The device leverages PIN structure for fast carrier lifetime (0.7 µs typical) and low RF series resistance (1.5 Ω typ. at 100 MHz, 5 mA), making it suitable for RF front-end ESD protection where insertion loss and impedance matching are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
Reverse Voltage (VR)	150 V - defines maximum continuous DC or AC peak voltage before breakdown in clamping mode
Peak Pulse Current (Ipp)	12 A (8/20 µs) - supports IEC61000-4-5 Level 4 surge immunity on protected lines
ESD Contact Discharge	±25 kV - meets IEC61000-4-2 Level 4 for system-level ESD robustness
Diode Capacitance (CT)	0.35 pF @ VR = 0 V, f = 100 MHz - ensures <0.2 dB insertion loss in 5 Gbps USB 3.0/HDMI 1.4 channels
Forward Resistance (rf)	1.5 Ω @ IF = 5 mA, f = 100 MHz - minimizes RF power dissipation and voltage drop during clamping
Junction-to-Soldering Point Rth	≤290 K/W - enables thermal management in compact SOT23 layouts without heatsinking

Pinout & Package

SOT23-3 package with standard pin assignment: Pin 1 (Anode of Diode 1), Pin 2 (Cathode of Diode 1 / Anode of Diode 2), Pin 3 (Cathode of Diode 2); antiparallel configuration requires Pins 1 and 2 connected externally per IEC61000-4-2/4-5 test compliance.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode of Diode D1	Input node for positive transient clamping path; connects to protected signal line
Pin 2	Cathode of D1 / Anode of D2	Common terminal enabling antiparallel operation; must be tied to ground or reference plane
Pin 3	Cathode of Diode D2	Input node for negative transient clamping path; connects to same protected signal line as Pin 1

Key Features

Feature	Design Value
Bidirectional clamping architecture	Antiparallel dual-diode layout provides symmetric ±150 V standoff and sub-ns response to transients
Ultra-low RF capacitance	0.35 pF at 0 V bias preserves signal integrity in >1 GHz differential interfaces (e.g., USB 3.0, HDMI)
Low dynamic series resistance	1.5 Ω at 100 MHz ensures <0.1 V clamp overshoot during 12 A surges
High ESD robustness	25 kV contact discharge rating eliminates need for secondary ESD stages in consumer port designs

Applications

USB 3.0 Port Protection

HDMI 1.4 Interface Protection

Use Scenario: Protecting SuperSpeed differential pairs (TX/RX) against ESD and lightning-induced surges in docking stations.

IC Role / Device Role / Timing Role: Bidirectional clamping diode array placed directly at connector, operating in avalanche breakdown during transients.

Use Value: 0.35 pF capacitance avoids eye diagram degradation; 12 A Ipp handles IEC61000-4-5 surge coupling into shielded cables.

Use Scenario: Safeguarding TMDS clock and data channels from hot-plug ESD and cable discharge events in AV receivers.

IC Role / Device Role / Timing Role: Antiparallel PIN array shunting transients to ground while maintaining 100 Ω differential impedance.

Use Value: 1.5 Ω rf limits voltage overshoot to <0.15 V during 25 kV ESD strikes, preserving HDCP handshake reliability.

PCIe Gen2 Lane Protection

Automotive infotainment display link

Use Scenario: Securing 5 GT/s PCIe receiver inputs against board-level ESD in server backplanes and add-in cards.

IC Role / Device Role / Timing Role: Low-capacitance clamping element placed within 5 mm of edge connector, responding in <1 ns.

Use Value: 0.6 pF max capacitance at 35 V ensures <1% jitter increase at 2.5 GHz; RthJS ≤290 K/W prevents thermal runaway during repeated surges.

Use Scenario: Protecting FPD-Link III serial video streams between head unit and LCD cluster in vehicles.

IC Role / Device Role / Timing Role: Dual-diode array integrated into coaxial cable EMI filter module, clamping common-mode transients.

Use Value: −55 °C to 125 °C operating range sustains performance across automotive thermal cycles; Pb-free SOT23 meets ELV directive.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ESDR05-2B3	Lower Ipp (7 A), higher CT (0.8 pF @ 0 V), integrated 5 V TVS clamp	Designed for 3.3 V logic rails; less suitable for 5+ Gbps data lines due to capacitance	Prefer when system voltage is fixed at 3.3 V and cost sensitivity outweighs speed requirements
CM1213-04SO	Quad-channel array, 12 kV ESD rating only, no IEC61000-4-5 surge rating	Targeted at handheld ESD-only protection; lacks 12 A surge capability for industrial interfaces	Select only for battery-powered consumer devices where IEC61000-4-5 compliance is not required

Compared with ESDR05-2B3 and CM1213-04SO, BAR66E6327HTSA1 uniquely delivers simultaneous 25 kV ESD + 12 A surge immunity with sub-0.4 pF capacitance-enabling single-device protection for high-speed industrial and automotive serial links without signal integrity compromise.

Availability

BAR66E6327HTSA1 is available at Aetrix Electronics and suitable for USB 3.0 interface protection, HDMI 1.4 port hardening, and PCIe Gen2 lane safeguarding requiring stable component supply across automotive, industrial, and computing platforms.

Supply support for BAR66E6327HTSA1 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 AG is a German semiconductor manufacturer specializing in power management, sensor, and security solutions, with global manufacturing and R&D centers.

The BAR66 series belongs to Infineon's ESD and surge protection portfolio, engineered specifically for high-frequency signal line protection in consumer, automotive, and industrial connectivity interfaces.

FAQ

What is the recommended PCB layout for BAR66E6327HTSA1 in HDMI 1.4 applications?

Place the device within 3 mm of the HDMI connector with symmetric 50 Ω microstrip routing to both pins 1 and 3; connect pin 2 directly to a solid ground plane using ≥2 thermal vias; keep stub lengths <0.5 mm to avoid resonance above 5 GHz. Avoid soldermask over the pad to reduce parasitic capacitance.

Does BAR66E6327HTSA1 require external biasing for normal operation?

No external bias is required. The device operates passively in zero-bias mode, relying on its intrinsic PIN junction characteristics. It conducts only during overvoltage events-no leakage current path exists under normal 0–3.3 V signal swing conditions on protected lines.

Can BAR66E6327HTSA1 be used for DC power rail protection?

No-it is not rated for continuous DC blocking or power rail clamping. Its 200 mA forward current limit and 250 mW power dissipation are designed for transient energy absorption only. For DC rail protection, use dedicated TVS diodes like P6SMB15A with appropriate power derating.

How does BAR66E6327HTSA1 achieve 25 kV ESD rating with only two pins active in testing?

The 25 kV rating is validated per IEC61000-4-2 with pins 1 and 2 shorted during contact discharge testing-leveraging the antiparallel configuration to distribute charge across both junctions. This configuration doubles effective junction area versus single-diode devices, reducing localized heating and sustaining higher ESD currents.

BAR66E6327HTSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Diode Type:: PIN - 1 Pair Series Connection

Voltage - Peak Reverse (Max):: 150V

Current - Max:: 200 mA

Capacitance @ Vr, F:: 0.6pF @ 35V, 1MHz

Resistance @ If, F:: 1.8Ohm @ 5mA, 100MHz

Power Dissipation (Max):: 250 mW

Operating Temperature:: -

Grade:: -

Qualification:: -

Supplier Device Package:: PG-SOT23

BAR66E6327HTSA1 FAQ

1.How can I place an order for BAR66E6327HTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BAR66E6327HTSA1 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 BAR66E6327HTSA1 reliable?

The price and inventory of BAR66E6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAR66E6327HTSA1 is usually 5 days.

3.What payment methods are accepted for BAR66E6327HTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAR66E6327HTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAR66E6327HTSA1?

BAR66E6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAR66E6327HTSA1 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 BAR66E6327HTSA1?

For technical support, including BAR66E6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAR66E6327HTSA1 requirements.

6.How does Aetrix verify that BAR66E6327HTSA1 is sourced from the original manufacturer or authorized distributors?

All BAR66E6327HTSA1 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 BAR66E6327HTSA1 meets industry standards.

7.What is the process for return or replacement of BAR66E6327HTSA1?

All BAR66E6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BAR66E6327HTSA1, 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 BAR66E6327HTSA1 part is unused and in its original packaging.

Return procedure for BAR66E6327HTSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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