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onsemi SD05T1
- Part No.:
- SD05T1
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SD05T1.pdf
- Description:
- TVS DIODE 5VWM 9.8VC SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,683
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Product details
Overview
SD05T1 from onsemi is a unidirectional ESD protection diode in SOD-323 package, rated for 5.0 V working peak reverse voltage, 9.8 V clamping voltage at 5 A pulse, 350 W peak pulse power (8/20 µs), and 350 pF capacitance at 0 V bias. It meets IEC61000-4-2 Level 4 (±15 kV air, ±8 kV contact) and is used to safeguard USB, HDMI, and audio interface lines in space-constrained consumer electronics.
For engineers reviewing the SD05T1 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage under 5 A transient, HBM ESD rating ≥30 kV, low leakage (<10 nA @ 5 V), FR-4 board power derating profile, and SOD-323 thermal resistance (416 °C/W).
Technical Context
The SD05T1 operates as a unidirectional TVS diode with avalanche breakdown at 6.2–7.3 V and clamps transients to ≤9.8 V at 5 A (8/20 µs). Its design targets fast response to ESD events while maintaining low capacitance (350 pF) to avoid signal integrity degradation on high-speed data lines.
It complies with IEC61000-4-2 (ESD), -4-4 (EFT, 40 A), and -4-5 (lightning, 24 A), and supports Pb-free reflow up to 260 °C with MSL 1 rating. The cathode is marked by a polarity band on the SOD-323 case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage | 5.0 V - defines maximum continuous DC or AC reverse voltage before significant leakage |
| Clamping Voltage @ 5 A | 9.8 V - limits transient voltage seen by protected IC during 8/20 µs surge, critical for downstream IC survival |
| Peak Pulse Power | 350 W - sustains single 8/20 µs transient without failure per IEC61000-4-2 Level 4 |
| Capacitance @ 0 V | 350 pF - impacts signal rise time and insertion loss on high-speed interfaces like USB 2.0 |
| HBM ESD Rating | 30 kV - exceeds standard 8 kV requirement, enabling robust handling in assembly and field environments |
| Thermal Resistance RJA | 416 °C/W - determines junction temperature rise on FR-4 board with 1 cm² pad, limiting sustained power dissipation |
Pinout & Package
SOD-323 surface-mount package (1.70 × 1.25 × 0.85 mm), void-free thermosetting plastic case, matte tin lead finish, MSL 1, 260 °C max reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to system ground or low-impedance return path; polarity band identifies this terminal for correct PCB layout |
| 2 (Non-banded End) | Anode | Connected to protected signal line; reverse-biased during normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| IEC61000-4-2 Level 4 Compliance | Enables certified ESD protection for end-product CE/FCC compliance without additional external filtering |
| Low Clamping Voltage (9.8 V @ 5 A) | Protects 3.3 V and 5 V logic interfaces by holding transient voltage below IC absolute maximum ratings |
| Pb-Free & RoHS Compliant | Meets global environmental regulations and enables use in medical and consumer products requiring green certification |
| 300 mW Steady-State Power Rating | Supports continuous leakage current management on FR-4 boards without thermal runaway under bias |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+/D− signals against ESD events during hot-plug and handling. IC Role / Device Role: Unidirectional TVS diode placed between each data line and ground, leveraging low capacitance to preserve 480 Mbps signal integrity. Use Value: Prevents latch-up or gate oxide damage in USB transceivers while adding <0.1 mm² PCB area per line. | Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines from user-touch ESD in home entertainment systems. IC Role / Device Role: Standoff protection device on bidirectional control buses, operating in reverse-bias during normal I²C signaling. Use Value: Maintains <1 µA leakage at 3.3 V to avoid I²C pull-up loading, while clamping 15 kV air discharge to <10 V. |
| Audio Jack Microphone Input | Industrial Sensor Interface |
Use Scenario: Shielding 3.5 mm TRRS microphone inputs in smartphones and headsets from human-body ESD. IC Role / Device Role: Single-line unidirectional clamp referenced to analog ground, minimizing noise coupling into low-level audio paths. Use Value: Delivers 30 kV HBM protection without degrading SNR, thanks to sub-10 nA leakage at 2.5 V bias. | Use Scenario: Protecting 4–20 mA or 0–10 V analog sensor outputs in factory automation panels exposed to maintenance ESD. IC Role / Device Role: Low-leakage transient suppressor on signal output pins, compatible with precision op-amp buffers. Use Value: Ensures <10 nA IR at VRWM preserves calibration accuracy while surviving 40 A EFT bursts per IEC61000-4-4 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Lower capacitance (13 pF), dual-channel, same SOT-563 package but different pinout | Better suited for high-speed USB 3.0 or MIPI where <15 pF is mandatory; not drop-in for SD05T1's SOD-323 footprint | Select when signal bandwidth >1 GHz is required and board layout allows dual-channel integration |
| ESD5Z5.0T1G | Same SOD-523 package (smaller), 5.0 V VRWM, 12.5 V clamping @ 5 A, 250 pF capacitance | Higher clamping voltage reduces protection margin for 3.3 V ICs; smaller size increases thermal stress under repeated surges | Choose only if PCB area is constrained beyond SOD-323 and transient energy is limited to <100 W |
Compared with TPD2E001DRYR and ESD5Z5.0T1G, the SD05T1 offers optimal balance of clamping performance (9.8 V), proven 350 W surge handling, and SOD-323 manufacturability-making it preferred for cost-sensitive, medium-speed interface protection where layout reuse and thermal robustness are prioritized.
Availability
SD05T1 is available at Aetrix Electronics and suitable for USB interface protection, HDMI control channel safeguarding, and industrial analog sensor output conditioning requiring stable component supply across production lifecycles.
Supply support for SD05T1 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 is a global semiconductor manufacturer specializing in energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.
The SD05T1 belongs to onsemi's ESD protection diode product line, engineered specifically for board-level transient suppression in compact, high-density consumer and industrial electronics.
FAQ
What is the maximum clamping voltage of SD05T1 under IEC61000-4-2 ESD stress?
The SD05T1 clamps to a maximum of 9.8 V at 5 A peak pulse current (8/20 µs waveform), as specified in the Electrical Characteristics table. This value is measured under standardized test conditions and ensures protected ICs remain within safe operating voltage limits during ±15 kV air-gap ESD events. The SD05T1 achieves this clamping performance while maintaining low leakage and controlled capacitance, making it suitable for 3.3 V and 5 V interface protection.
Is SD05T1 compatible with lead-free reflow soldering processes?
Yes, SD05T1 is fully compatible with lead-free reflow soldering. Its qualified maximum reflow temperature is 260 °C for 10 seconds, meeting IPC/JEDEC J-STD-020 requirements. The device uses 100% matte tin lead finish and is rated MSL 1, meaning it can be stored indefinitely at ambient conditions without baking prior to assembly. This makes SD05T1 suitable for high-volume automated manufacturing using standard Pb-free profiles.
Does SD05T1 meet automotive qualification standards?
No, the base SD05T1 is not AEC-Q101 qualified. However, its automotive-grade variant SZSD05T1G is AEC-Q101 qualified and PPAP capable, with identical electrical specs and SOD-323 packaging. For automotive applications requiring temperature cycling, humidity testing, and zero-defect reliability, engineers must specify SZSD05T1G-not SD05T1-to ensure compliance with automotive quality systems.
What is the typical capacitance of SD05T1 at 0 V bias and 1 MHz?
The typical capacitance of SD05T1 at 0 V bias and 1 MHz is 350 pF, as confirmed in the Electrical Characteristics table. This value is critical for high-speed data line protection, where excessive capacitance can attenuate signal edges or cause impedance mismatch. The SD05T1's 350 pF balances ESD robustness with acceptable signal integrity for interfaces up to 480 Mbps, such as USB 2.0 and I²C.
How does SD05T1 differ from SD12T1G in terms of voltage rating and application scope?
SD05T1 has a 5.0 V working peak reverse voltage and 9.8 V clamping voltage, targeting 3.3 V/5 V logic interfaces. SD12T1G features a 12 V VRWM and 19 V clamping voltage, making it suitable for 12 V automotive or industrial power rail protection. Their capacitance differs significantly (350 pF vs. 150 pF), so SD05T1 is preferred for low-voltage signal lines, while SD12T1G suits higher-voltage, lower-capacitance applications. Interchanging them risks under-protection or signal distortion.
SD05T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.2V
- Voltage - Clamping (Max) @ Ipp:
- 9.8V
- Current - Peak Pulse (10/1000µs):
- 24A (8/20µs)
- Power - Peak Pulse:
- 350W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 350pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
SD05T1 FAQ
1.How can I place an order for SD05T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SD05T1 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 SD05T1 reliable?
The price and inventory of SD05T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SD05T1 is usually 5 days.
3.What payment methods are accepted for SD05T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SD05T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SD05T1?
SD05T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SD05T1 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 SD05T1?
For technical support, including SD05T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SD05T1 requirements.
6.How does Aetrix verify that SD05T1 is sourced from the original manufacturer or authorized distributors?
All SD05T1 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 SD05T1 meets industry standards.
7.What is the process for return or replacement of SD05T1?
All SD05T1 units undergo pre-shipment inspection (PSI). If there is an issue with SD05T1, 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 SD05T1 part is unused and in its original packaging.
Return procedure for SD05T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SD05T1 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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