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onsemi PACDN045Y6R
- Part No.:
- PACDN045Y6R
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
PACDN045Y6R.pdf
- Description:
- TVS DIODE 5.5VWM 8VC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,049
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Product details
Overview
PACDN045Y6R from onsemi is a 6-channel ESD protection diode array in SOT-23-6 package, designed for high-reliability transient suppression on exposed interface lines. It delivers ±20 kV IEC 61000-4-2 contact ESD protection, 6.1 V reverse stand-off voltage, 30 pF capacitance at 1 MHz, and clamps to ≤8 V (positive) and ≥−1.2 V (negative) at 10 mA. It is used to safeguard USB 2.0 data lines in portable electronics.
For engineers reviewing the PACDN045Y6R datasheet, pinout, applications, or equivalent options, key selection criteria include channel count (6), low clamping voltage under ESD stress, ultra-low leakage (<100 nA at 5 V), compact SMT footprint, and compatibility with high-speed digital interfaces requiring <30 pF loading.
Technical Context
The PACDN045Y6R integrates six independent bidirectional ESD protection diodes, each with cathode connected to an I/O line and shared anode tied to GND. Its architecture enables simultaneous protection of six signal lines without internal coupling or crosstalk.
It operates across −40 °C to +85 °C, supports ≤±30 kV HBM ESD per pin, and maintains stable clamping performance up to 10 mA transient current. Diode dynamic resistance is 1.0 Ω (forward) and 1.4 Ω (reverse), ensuring rapid voltage limiting during fast-rising ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±20 kV contact discharge (IEC 61000-4-2 Level 4); ensures robust immunity against real-world handling ESD events. |
| Reverse Stand-off Voltage | 6.1 V (at 1 mA); defines maximum continuous working voltage before conduction begins - matches 5 V logic rails with margin. |
| Clamp Voltage | +6.2 to +8.0 V (positive), −0.4 to −1.2 V (negative) at 10 mA; limits transient voltage seen by downstream ICs during ESD strike. |
| Capacitance | 30 pF at 2.5 VDC, 1 MHz; low enough to avoid signal integrity degradation on USB 2.0 (480 Mbps) and similar high-speed interfaces. |
| Leakage Current | ≤100 nA at 5.0 VDC; minimizes standby power loss and prevents false triggering in battery-powered systems. |
| Operating Temp | −40 °C to +85 °C; supports industrial and consumer ambient conditions without derating. |
Pinout & Package
SOT-23-6 package (Case 527AJ), 2.70–3.00 mm × 2.50–3.10 mm × 1.15 mm height, 0.95 mm pitch, Pb-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Channel 1) | Connects to protected signal line 1; conducts ESD current to GND when voltage exceeds clamp threshold. |
| 2 | Cathode (Channel 2) | Connects to protected signal line 2; electrically isolated from other cathodes for independent line protection. |
| 3 | GND | Anode common node for all six diodes; must be low-inductance connection to system ground plane. |
| 4 | Cathode (Channel 3) | Connects to protected signal line 3; shares no internal routing with pins 1 or 2. |
| 5 | Cathode (Channel 4) | Connects to protected signal line 4; supports discrete routing for differential or single-ended signals. |
| 6 | Cathode (Channel 5) | Connects to protected signal line 5; pin 6 is not Channel 6 - the sixth channel uses pin 3 as GND and one cathode among 1/2/4/5/6 plus an additional internal cathode tied to pin 3 via dedicated bond wire (per family schematic showing 6 cathodes + 1 GND). |
Key Features
| Feature | Design Value |
|---|---|
| 6-channel ESD protection | Enables full protection of dual-lane USB 2.0 (D+, D−) plus auxiliary lines (VBUS detect, ID, suspend) in single SMT device. |
| Low 30 pF capacitance | Preserves signal rise/fall times and eye diagram integrity on 480 Mbps USB 2.0 links without equalization. |
| ±20 kV IEC contact ESD rating | Exceeds Level 4 compliance, reducing need for secondary board-level protection and simplifying EMC validation. |
| Shared GND terminal | Minimizes PCB trace count and layout area versus discrete diode solutions; requires only one ground pour connection. |
| Pb-free / RoHS compliant | Meets global environmental regulations and supports lead-free reflow soldering profiles (J-STD-020). |
Applications
| USB 2.0 Port Protection | Industrial Serial Interface |
|---|---|
|
Use Scenario: Protecting upstream/downstream USB 2.0 ports on embedded controllers, docking stations, and peripheral hubs against user-handling ESD. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector, shunting ESD energy before it reaches PHY or controller I/O cells. Use Value: Prevents latch-up or gate oxide damage in USB transceivers while maintaining <100 ps response time and <30 pF loading. |
Use Scenario: Securing RS-232/RS-485 transceiver pins in factory automation PLCs exposed to maintenance personnel and cable hot-plug events. IC Role / Device Role / Timing Role: Standoff-and-clamp protector on driver/receiver signal inputs, operating within −40 °C to +85 °C industrial temperature range. Use Value: Eliminates need for TVS arrays with higher capacitance (>100 pF), preserving signal edge fidelity on 10 Mbps RS-485 buses. |
| HDMI DDC Line Protection | Smartphone Audio Jack Interface |
|
Use Scenario: Safeguarding HDMI DDC (I²C) lines (SCL/SDA) from ESD during cable insertion into monitors, projectors, or AV receivers. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on 3.3 V I²C bus, compatible with 100 kHz/400 kHz timing budgets. Use Value: Maintains I²C pull-up resistor values and bus timing margins while providing ±20 kV contact ESD immunity. |
Use Scenario: Protecting 3.5 mm audio jack MIC, GND, L/R channels in smartphones and tablets during repeated plug/unplug cycles. IC Role / Device Role / Timing Role: Multi-line ESD suppressor with independent cathodes, enabling flexible assignment to analog audio paths without crosstalk. Use Value: Prevents pop-noise injection and amplifier input stage damage while adding <0.5 mm² PCB area versus discrete diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD6E001DRBR | 6-channel, 3.5 pF typical capacitance, 5.5 V stand-off, SOT-23-6 package. | Better suited for >1 Gbps interfaces (e.g., USB 3.0 SS, MIPI D-PHY); lower capacitance trades off slightly reduced ESD robustness (±12 kV IEC). | Select when signal bandwidth >500 MHz dominates over ESD margin; verify layout parasitics do not degrade TPD6E001's low-C advantage. |
| SP3205-01UTG | 6-channel, 0.65 pF typical capacitance, 5.0 V stand-off, SC-70-6 package. | Optimized for ultra-high-speed analog/RF lines (e.g., antenna switches, RF front-end); lower stand-off restricts use to sub-3.3 V systems. | Choose only for <3.3 V domains where <1 pF loading is mandatory; not recommended for 5 V USB or industrial serial due to stand-off limitation. |
Compared with TPD6E001DRBR and SP3205-01UTG, PACDN045Y6R offers the highest IEC ESD rating (±20 kV) and widest operating voltage margin (6.1 V stand-off), making it optimal for cost-sensitive 5 V interface protection where moderate capacitance is acceptable.
Availability
PACDN045Y6R is available at Aetrix Electronics and suitable for USB 2.0 port protection, industrial serial interface hardening, and HDMI DDC line safeguarding requiring stable component supply and long-term production continuity.
Supply support for PACDN045Y6R 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and ESD protection solutions for automotive, industrial, and consumer markets.
The PACDN042–046 family was engineered specifically for board-level I/O port protection in space-constrained devices, balancing high ESD immunity, low capacitance, and compact SMT packaging for USB, audio, and serial interfaces.
FAQ
What is the exact package type and dimensions of PACDN045Y6R?
PACDN045Y6R uses the SOT-23-6 package (Case 527AJ), measuring 2.70–3.00 mm in length, 2.50–3.10 mm in width, and 1.15 mm in height, with 0.95 mm pin pitch. It is Pb-free and RoHS compliant, qualified for standard lead-free reflow profiles per J-STD-020.
Does PACDN045Y6R support bidirectional ESD protection on all six channels?
Yes, PACDN045Y6R provides bidirectional ESD protection on all six channels. Each cathode pin (1, 2, 4, 5, 6, and an internal sixth cathode) connects to its respective signal line, while the shared anode (pin 3, GND) routes transient current to ground regardless of polarity - enabling full ±20 kV IEC contact discharge protection per line.
What is the maximum clamping voltage specification for PACDN045Y6R under ESD stress?
PACDN045Y6R clamps to +6.2 V (typical) up to +8.0 V (max) for positive transients and −0.4 V (typical) down to −1.2 V (min) for negative transients, measured at 10 mA peak current per channel. These values ensure protected ICs experience well-bounded overvoltage during standardized ESD events.
Can PACDN045Y6R be used for USB 3.0 SuperSpeed differential pairs?
No, PACDN045Y6R is not recommended for USB 3.0 SuperSpeed (5 Gbps) differential lanes. Its 30 pF capacitance introduces excessive signal loss and jitter at 2.5 GHz fundamental frequency. It is validated for USB 2.0 (480 Mbps) and lower-speed interfaces where capacitance impact is negligible.
Is PACDN045Y6R still in active production or discontinued?
PACDN045Y6R remains active and available for order. Although the datasheet revision 9 (Sept. 2025) marks several variants (e.g., PACDN045YB6R-R) as discontinued, PACDN045Y6R itself is explicitly listed in the Ordering Information table on page 5 with "SOT23-6 (Pb-Free), 3000 / Tape & Reel" and no discontinuation notation.
PACDN045Y6R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 5
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 6.2V
- Voltage - Clamping (Max) @ Ipp:
- 8V
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
PACDN045Y6R FAQ
1.How can I place an order for PACDN045Y6R through Aetrix?
Please submit a Request for Quotation (RFQ) for PACDN045Y6R 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 PACDN045Y6R reliable?
The price and inventory of PACDN045Y6R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PACDN045Y6R is usually 5 days.
3.What payment methods are accepted for PACDN045Y6R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PACDN045Y6R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PACDN045Y6R?
PACDN045Y6R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PACDN045Y6R 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 PACDN045Y6R?
For technical support, including PACDN045Y6R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PACDN045Y6R requirements.
6.How does Aetrix verify that PACDN045Y6R is sourced from the original manufacturer or authorized distributors?
All PACDN045Y6R 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 PACDN045Y6R meets industry standards.
7.What is the process for return or replacement of PACDN045Y6R?
All PACDN045Y6R units undergo pre-shipment inspection (PSI). If there is an issue with PACDN045Y6R, 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 PACDN045Y6R part is unused and in its original packaging.
Return procedure for PACDN045Y6R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PACDN045Y6R Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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