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STMicroelectronics HDMIULC6-4SC6Y
- Part No.:
- HDMIULC6-4SC6Y
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
HDMIULC6-4SC6Y.pdf
- Description:
- TVS DIODE 5VWM 17VC SOT23-6L
- Quantity:
- Payment:
- Shipping:
Inventory:13,720
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Product details
Overview
HDMIULC6-4SC6Y from STMicroelectronics is an automotive-qualified, monolithic ESD protection device for HDMI, USB 2.0, IEEE 1394, and Ethernet data lines. It provides 15 kV air/8–15 kV contact IEC 61000-4-2 ESD protection, 1 pF I/O-to-GND capacitance at 1 MHz, 5.3 GHz cutoff frequency, and AEC-Q101 qualification - enabling reliable high-speed signal integrity up to 3.2 Gb/s in automotive infotainment interfaces.
For engineers reviewing the HDMIULC6-4SC6Y datasheet, HDMIULC6-4SC6Y pinout, HDMIULC6-4SC6Y application, or HDMIULC6-4SC6Y equivalent, key selection criteria include ultra-low inter-pair capacitance mismatch (ΔCi/o-i/o ≤ 0.007 pF), <0.5 µA leakage at 5 V, rail-to-rail clamping topology, and SOT23-6L footprint compatibility with HDMI TMDS differential pair routing constraints.
Technical Context
The device uses a rail-to-rail diode-based topology with integrated Transil clamping between VBUS and GND, delivering asymmetric clamping voltages (VCL+ = 31.2 V, VCL− = −13.1 V) under IEC 61000-4-2 Level 4 surge conditions. Its ultrahigh bandwidth stems from sub-1 pF I/O–GND capacitance and <0.015 pF capacitance variation across voltage and frequency.
Designed specifically for HDMI single-link applications, it maintains <0.1 ps intra-/inter-pair skew impact and supports differential impedance matching to 100 Ω. The SOT23-6L package places I/O pins 1–4 symmetrically for D+/D− and CEC/HPD line protection, with Pin 5 (VBUS) isolated in HDMI use to prevent backdrive current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±15 kV air, ±15 kV contact per IEC 61000-4-2 Level 4 - ensures system-level immunity without external TVS cascading |
| I/O–GND Capacitance | 0.6 pF at 825 MHz - preserves signal rise/fall times and harmonic content for 3.2 Gb/s HDMI |
| Cutoff Frequency | 5.3 GHz - enables full spectral fidelity of TMDS signals without attenuation or phase distortion |
| Clamping Voltage | 12 V @ 1 A, 17 V @ 5 A (8/20 µs) - limits transient overvoltage to safe levels for downstream HDMI transceivers |
| Leakage Current | ≤0.5 µA @ 5 V - avoids DC loading on high-impedance video control lines (CEC, HPD) |
| AEC-Q101 Qualified | Qualified per AEC-Q101 Rev D - validated for automotive temperature range (−40°C to +125°C junction) |
| Inter-pair Capacitance Match | ΔCi/o-i/o ≤ 0.007 pF - minimizes skew-induced jitter in differential HDMI signaling |
Pinout & Package
SOT23-6L package (JEDEC MO178AB), 3.5 mm × 2.3 mm × 1.3 mm footprint, RoHS-compliant and ECOPACK® certified. Lead-free, UL94 V0 epoxy, 260 °C solder tolerance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I/O1) | HDMI TMDS Data0+ | Protected high-speed differential input/output; routed with matched length to Pin 2 |
| 2 (I/O2) | HDMI TMDS Data0− | Paired with Pin 1 for 100 Ω differential impedance; low capacitance ensures skew <0.1 ps |
| 3 (GND) | Signal Ground Reference | Low-inductance return path for ESD current; must connect directly to PCB ground plane |
| 4 (I/O3) | HDMI TMDS Data1+ | Second differential pair; identical electrical characteristics to Pins 1–2 for channel consistency |
| 5 (VBUS) | VCC Supply Input (Not Connected in HDMI) | Left floating in HDMI applications to block backdrive current; used only in USB/1394 configurations |
| 6 (I/O4) | HDMI TMDS Data1− | Complements Pin 4; ΔCi/o-i/o ≤ 0.007 pF ensures inter-pair timing alignment |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail clamping architecture | Enables symmetric surge suppression without external biasing; eliminates need for VCC decoupling capacitor in HDMI layout |
| Ultralow capacitance variation | ΔCi/o-GND ≤ 0.015 pF across 0–5 V and 1 MHz–825 MHz - maintains consistent signal integrity across operating conditions |
| Monolithic integration | Single-die construction ensures precise inter-pin capacitance matching and eliminates assembly-induced skew |
| Optimized for HDMI TMDS routing | Pins 1–2 and 4–6 arranged for side-by-side differential pair placement; supports 100 Ω controlled impedance trace design |
| AEC-Q101 stress validation | Passed HTOL, TC, UHAST, and ESD HBM/MM - qualified for under-hood and infotainment module deployment |
Applications
| HDMI Digital Single-Link Interface | IEEE 1394b/c (FireWire) Port |
|---|---|
Use Scenario: Protection of TMDS channels (Data0+/−, Data1+/−) between Set-Top Box and automotive display. IC Role / Device Role / Timing Role: ESD transient suppressor placed within 3 mm of HDMI connector; clamps surges before reaching SerDes PHY. Use Value: Maintains <0.1 ps inter-pair skew and 5.3 GHz bandwidth - enables stable 1080p60 transmission with zero pixel corruption during ESD events. | Use Scenario: ESD hardening of FireWire 3.2 Gb/s differential pairs in automotive telematics gateways. IC Role / Device Role / Timing Role: Bidirectional rail-to-rail clamp on TPB+/TPB− and TPA+/TPA− lines; shares common GND reference. Use Value: 0.6 pF capacitance at 825 MHz prevents signal degradation while meeting IEC 61000-4-2 Level 4 compliance. |
| USB 2.0 High-Speed Port | Ethernet 1000BASE-T Interface |
Use Scenario: ESD protection of D+/D− lines in rear-seat USB charging and media hubs. IC Role / Device Role / Timing Role: Low-leakage (≤0.5 µA) protector preserving USB suspend/resume signaling integrity. Use Value: Prevents false disconnects during hot-plug ESD events; supports 480 Mb/s data rate with <1% eye diagram closure. | Use Scenario: Surge protection of Ethernet PHY differential pairs (TX+/−, RX+/−) in vehicle infotainment head units. IC Role / Device Role / Timing Role: Common-mode ESD suppressor with matched I/O capacitance across all four lines. Use Value: ΔCi/o-i/o ≤ 0.007 pF ensures <0.5 ns skew margin - critical for 1000BASE-T echo cancellation performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1006-04UTG | 0.35 pF I/O–GND @ 1 MHz; lower clamping voltage (9.5 V @ 1 A); no AEC-Q101 qualification | Lacks automotive qualification; suitable for consumer USB/HDMI but not under-hood deployment | Select when cost sensitivity outweighs automotive reliability requirements and 100 °C ambient operation is sufficient. |
| ESD5V3U4-2/TR | 0.8 pF I/O–GND @ 1 MHz; higher leakage (1 µA max); same SOT23-6L footprint | Higher capacitance degrades >2.5 Gb/s signal integrity; not validated for HDMI 3.2 Gb/s | Choose only for legacy 1.65 Gb/s HDMI or USB 2.0 where margin exists for added 0.2 pF load. |
Compared with SP1006-04UTG and ESD5V3U4-2/TR, HDMIULC6-4SC6Y uniquely combines AEC-Q101 qualification, 0.6 pF @ 825 MHz, and rail-to-rail clamping - making it the sole option qualified for automotive HDMI 3.2 Gb/s systems requiring zero-skew signal fidelity and extended temperature operation.
Availability
HDMIULC6-4SC6Y is available at Aetrix Electronics and suitable for automotive infotainment systems, HDMI-enabled ADAS displays, and industrial video interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for HDMIULC6-4SC6Y 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
HDMIULC6-4SC6Y belongs to ST's ULC (Ultra-Low Capacitance) ESD protection product line, engineered specifically for high-speed serial interfaces where signal integrity, minimal skew, and automotive-grade reliability are non-negotiable.
FAQ
Is HDMIULC6-4SC6Y compatible with HDMI 2.0 or higher standards?
No - HDMIULC6-4SC6Y is specified for HDMI 1.4 single-link operation up to 3.2 Gb/s (1080p60). It lacks the bandwidth and insertion loss performance required for HDMI 2.0 (6 Gb/s) or HDMI 2.1 (12–48 Gb/s) multi-lane signaling. Its 5.3 GHz cutoff supports fundamental harmonics of 3.2 Gb/s NRZ data but not higher-order modulation schemes.
Why must Pin 5 (VBUS) remain unconnected in HDMI applications?
Pin 5 connects to VBUS in USB/1394 configurations but must be left floating in HDMI designs to prevent backdrive current from the 5 V HDMI power line into the protection device's internal clamping network. This avoids unintended conduction paths that could distort TMDS common-mode voltage or trigger latch-up in downstream receivers.
What is the maximum recommended PCB trace length between HDMIULC6-4SC6Y and the HDMI connector?
ST recommends ≤3 mm from device I/O pins to connector pads. Longer traces introduce parasitic inductance (>6 nH per 10 mm), which - combined with fast ESD dI/dt - can elevate clamping voltage beyond 17 V, risking damage to protected ICs. Layout must also maintain strict 100 Ω differential impedance and equal trace lengths for each pair.
Does HDMIULC6-4SC6Y protect the HDMI CEC and HPD lines?
Yes - Pins 1–4 protect two differential pairs (e.g., Data0+/− and Data1+/−), while the device's low leakage (≤0.5 µA) and high impedance at DC allow safe connection of CEC and HPD to adjacent unprotected pins on the same connector. ST's reference design (Figure 6) shows CEC/HPD routed separately but co-located near the same HDMIULC6-4SC6Y footprint for shared grounding.
HDMIULC6-4SC6Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SOT-23-6
- Series:
- HDMIY
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- Ethernet, HDMI
- Capacitance @ Frequency:
- 1pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6L
HDMIULC6-4SC6Y FAQ
1.How can I place an order for HDMIULC6-4SC6Y through Aetrix?
Please submit a Request for Quotation (RFQ) for HDMIULC6-4SC6Y 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 HDMIULC6-4SC6Y reliable?
The price and inventory of HDMIULC6-4SC6Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HDMIULC6-4SC6Y is usually 5 days.
3.What payment methods are accepted for HDMIULC6-4SC6Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HDMIULC6-4SC6Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HDMIULC6-4SC6Y?
HDMIULC6-4SC6Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HDMIULC6-4SC6Y 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 HDMIULC6-4SC6Y?
For technical support, including HDMIULC6-4SC6Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HDMIULC6-4SC6Y requirements.
6.How does Aetrix verify that HDMIULC6-4SC6Y is sourced from the original manufacturer or authorized distributors?
All HDMIULC6-4SC6Y 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 HDMIULC6-4SC6Y meets industry standards.
7.What is the process for return or replacement of HDMIULC6-4SC6Y?
All HDMIULC6-4SC6Y units undergo pre-shipment inspection (PSI). If there is an issue with HDMIULC6-4SC6Y, 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 HDMIULC6-4SC6Y part is unused and in its original packaging.
Return procedure for HDMIULC6-4SC6Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HDMIULC6-4SC6Y Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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