My Inquiry
My Account
Diodes Incorporated DESD5V0U1BA-7
- Part No.:
- DESD5V0U1BA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
DESD5V0U1BA-7.pdf
- Description:
- TVS DIODE 5VWM 7.2VC SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:505,666
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DESD5V0U1BA-7 from Diodes Incorporated is a bidirectional TVS diode designed for ESD protection of high-speed data lines in portable electronics. It features 5 V reverse standoff voltage, 7.2 V clamping voltage at 3 A (8/20 µs), 2.9 pF input capacitance at 0 V, ±10 kV IEC 61000-4-2 contact ESD rating, and SOD323 package-used in USB 2.0, HDMI, and cellular antenna interfaces.
For engineers reviewing the DESD5V0U1BA-7 datasheet, DESD5V0U1BA-7 pinout, DESD5V0U1BA-7 application, or DESD5V0U1BA-7 equivalent, key selection criteria include low capacitance for signal integrity, precise clamping performance under transient stress, bidirectional polarity for AC-coupled lines, and compatibility with space-constrained PCB layouts in handheld devices.
Technical Context
This device operates as a low-capacitance, bidirectional transient voltage suppressor optimized for protecting sensitive I/O pins against electrostatic discharge. Its silicon avalanche structure delivers fast response (<1 ns), low dynamic impedance (0.3 Ω), and stable breakdown voltage (5.5–9.5 V at 5 mA) across temperature.
The SOD323 package enables integration into high-density layouts while maintaining thermal resistance of 500 °C/W and power dissipation up to 250 mW at 25 °C ambient. Clamping behavior is characterized per IEC 61000-4-5 (8/20 µs waveform), with peak pulse current rated at 3 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 5 V - Maximum continuous operating voltage before conduction begins; ensures no leakage during normal signal operation. |
| Clamping Voltage | 7.2 V at 3 A (8/20 µs) - Peak voltage seen by protected circuit during surge; limits stress on downstream ICs. |
| Input Capacitance | 2.9 pF at 0 V - Minimizes signal distortion and insertion loss on high-speed lines like USB 2.0 (480 Mbps). |
| ESD Rating | ±10 kV contact per IEC 61000-4-2 - Validates robustness against human-body-model discharges in handheld product handling. |
| Breakdown Voltage | 5.5–9.5 V at 5 mA - Ensures reliable turn-on margin above VRWM while avoiding premature triggering. |
| Dynamic Impedance | 0.3 Ω at 20 A TLP - Reflects low internal resistance during fast transients, improving clamping efficiency. |
Pinout & Package
Package: SOD323 - Surface-mount plastic case (1.30 × 1.70 × 0.90 mm), moisture sensitivity level 1, matte tin-plated alloy 42 leadframe, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode / Cathode (bidirectional) | Common terminal for symmetrical ESD path; connects to I/O line requiring protection. |
| Pin 2 | Cathode / Anode (bidirectional) | Paired terminal forming low-capacitance, symmetric clamping path between I/O and ground or reference plane. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD suppression | Enables protection of AC-coupled or differential signal lines (e.g., USB D+/D−) without polarity constraints. |
| 2.9 pF channel capacitance | Preserves signal rise/fall times and eye diagram integrity on 480 Mbps USB 2.0 and similar interfaces. |
| 7.2 V clamping at 3 A | Keeps protected IC's I/O voltage within safe operating range during lightning-surge-level transients (IEC 61000-4-5). |
| ±10 kV IEC 61000-4-2 contact rating | Meets international ESD immunity requirements for consumer handheld and portable equipment certification. |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in smartphone USB ports against user-handling ESD events. IC Role / Device Role: Bidirectional TVS diode placed directly at connector, shunting ESD current to ground before reaching USB transceiver. Use Value: Prevents latch-up or permanent damage to USB PHY ICs while maintaining <1% signal attenuation at 240 MHz. | Use Scenario: Safeguarding TMDS clock and data pairs in portable media players connected to HDMI displays. IC Role / Device Role: Low-capacitance TVS array element (per-channel) ensuring ESD immunity without degrading 165 MHz pixel clock integrity. Use Value: Enables compliance with IEC 61000-4-2 Level 4 (±8 kV contact) while preserving HDMI 1.4 eye opening >70%. |
| Cellular Antenna Feedline | Industrial Sensor Interface |
Use Scenario: ESD protection of RF front-end antenna switch control lines in LTE handsets exposed to field handling. IC Role / Device Role: Transient suppressor on DC-biased antenna tuning control paths (e.g., GPIO lines to tunable capacitors). Use Value: Blocks ±10 kV discharges without affecting 0–3.3 V logic levels or introducing parasitic capacitance that detunes matching networks. | Use Scenario: Guarding analog sensor outputs (e.g., temperature, pressure) in factory-floor handheld test tools. IC Role / Device Role: Low-leakage (5 nA typ.) TVS on 0–5 V output lines, preventing ESD-induced offset drift or ADC saturation. Use Value: Maintains measurement accuracy (±0.1% FS) after repeated ESD events due to stable clamping and sub-100 nA IR at VRWM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A-Q | Unidirectional; higher capacitance (≈35 pF); DO-214AC package (larger footprint) | Requires polarity-aware layout; unsuitable for AC-coupled or differential signals | Select only when unidirectional protection suffices and board space permits larger package. |
| TPD2E001DRYR | 2-channel array; 12 pF typical capacitance; same SOD-523 footprint but lower surge rating (IPP = 1.5 A) | Offers dual-line protection in same area; less robust for high-energy surges | Prefer for multi-line compact interfaces where total capacitance budget allows ≥12 pF per line. |
Compared with SMAJ5.0A-Q and TPD2E001DRYR, DESD5V0U1BA-7 uniquely balances ultra-low capacitance (2.9 pF), bidirectional symmetry, and 3 A surge capability in the minimal SOD323 footprint-making it optimal for single-line, high-speed, polarity-agnostic ESD protection.
Availability
DESD5V0U1BA-7 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI signal line safeguarding, and cellular antenna feedline ESD mitigation requiring stable component supply across production lifecycles.
Supply support for DESD5V0U1BA-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions for consumer, industrial, and communications markets.
The DESD5V0U1BA-7 belongs to Diodes' low-capacitance TVS diode product line, engineered specifically for ESD hardening of high-speed digital interfaces without compromising signal fidelity or board space.
FAQ
What is the maximum operating temperature range for DESD5V0U1BA-7?
The DESD5V0U1BA-7 supports continuous operation from –65 °C to +150 °C, covering extended industrial and automotive under-hood environments. Its thermal resistance (500 °C/W) assumes mounting on a standard FR-4 PCB with Diodes' recommended AP02001 pad layout, and derating applies above 25 °C ambient per Figure 1 in the datasheet.
Does DESD5V0U1BA-7 meet RoHS and halogen-free requirements?
Yes-DESD5V0U1BA-7 is fully RoHS 2 compliant (2011/65/EU), lead-free, and halogen- and antimony-free per Diodes' "Green" definition: <900 ppm bromine, <900 ppm chlorine (≤1500 ppm total Br+Cl), and <1000 ppm antimony compounds. Compliance is verified through material declarations and third-party testing.
How does the 2.9 pF capacitance impact USB 2.0 signal integrity?
At 2.9 pF, the DESD5V0U1BA-7 introduces negligible loading on USB 2.0 differential pairs: insertion loss remains <0.5 dB and eye height degradation <3% at 240 MHz. This meets USB-IF specification margins for full-speed and high-speed signaling, unlike higher-capacitance alternatives (>10 pF) that cause measurable jitter and bit errors.
Can DESD5V0U1BA-7 be used in place of a unidirectional TVS diode?
No-it is strictly bidirectional and lacks anode/cathode polarity designation for DC biasing. Substituting it for a unidirectional TVS (e.g., SMAJ5.0A) on a rail-to-rail signal path may cause unintended conduction during normal operation. Use only where symmetrical clamping around 0 V is required, such as AC-coupled data lines or GPIOs with no fixed DC reference.
DESD5V0U1BA-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 5.5V
- Voltage - Clamping (Max) @ Ipp:
- 7.2V (Typ)
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 2.9pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
DESD5V0U1BA-7 FAQ
1.How can I place an order for DESD5V0U1BA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD5V0U1BA-7 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 DESD5V0U1BA-7 reliable?
The price and inventory of DESD5V0U1BA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD5V0U1BA-7 is usually 5 days.
3.What payment methods are accepted for DESD5V0U1BA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD5V0U1BA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD5V0U1BA-7?
DESD5V0U1BA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD5V0U1BA-7 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 DESD5V0U1BA-7?
For technical support, including DESD5V0U1BA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD5V0U1BA-7 requirements.
6.How does Aetrix verify that DESD5V0U1BA-7 is sourced from the original manufacturer or authorized distributors?
All DESD5V0U1BA-7 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 DESD5V0U1BA-7 meets industry standards.
7.What is the process for return or replacement of DESD5V0U1BA-7?
All DESD5V0U1BA-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD5V0U1BA-7, 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 DESD5V0U1BA-7 part is unused and in its original packaging.
Return procedure for DESD5V0U1BA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD5V0U1BA-7 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
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
