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Diodes Incorporated DESD3V3XA1BCSF-7
- Part No.:
- DESD3V3XA1BCSF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
DESD3V3XA1BCSF-7.pdf
- Description:
- DATALINE PROTECTION PP X2-DSN060
- Quantity:
- Payment:
- Shipping:
Inventory:2,240
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Product details
Overview
DESD3V3XA1BCSF-7 from Diodes Incorporated is a bidirectional TVS diode designed for ultra-low-capacitance ESD protection of high-speed data lines in portable electronics. It features a 3.3 V reverse standoff voltage, 5.5 A peak pulse current (8/20 µs), 0.3 pF typical input capacitance, and ±16 kV contact / ±18 kV air IEC 61000-4-2 ESD rating - enabling robust protection without signal integrity degradation in USB 2.0, HDMI, or audio interfaces.
For engineers reviewing the DESD3V3XA1BCSF-7 datasheet, DESD3V3XA1BCSF-7 pinout, DESD3V3XA1BCSF-7 application, or DESD3V3XA1BCSF-7 equivalent, key selection criteria include channel count (1), clamping voltage (5.0 V at 5.5 A), thermal resistance (500 °C/W), package footprint (X2-DSN0603-2, 0.6 mm × 0.3 mm), and compliance with automotive-grade change control requirements when specified.
Technical Context
This TVS diode operates as a single-channel, bidirectional transient suppressor optimized for low-capacitance signal-line protection. Its breakdown voltage (5–9 V at 1 mA) ensures reliable triggering above 3.3 V system rails while maintaining low leakage (<1 µA at VRWM).
The device uses a silicon avalanche structure with NiAu bump terminals on a chip-scale package, delivering dynamic differential resistance of 0.3 Ω under TLP stress (10 A, 100 ns), enabling fast response to sub-nanosecond ESD events without signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 3.3 V - Ensures no conduction during normal 3.3 V I/O operation, preserving signal integrity |
| Clamping Voltage | 5.0 V at 5.5 A (8/20 µs) - Limits transient voltage to safe levels for downstream 3.3 V logic |
| ESD Rating | ±16 kV contact / ±18 kV air per IEC 61000-4-2 - Meets industrial and consumer ESD immunity requirements |
| Channel Input Capacitance | 0.3 pF at 1 MHz - Enables use on >480 Mbps USB 2.0 and other high-speed serial interfaces |
| Peak Pulse Power | 27.5 W (8/20 µs) - Sustains multiple ESD strikes without degradation under defined waveform |
| Thermal Resistance | 500 °C/W - Requires careful PCB copper area design to maintain junction temperature below 150 °C |
Pinout & Package
Package: X2-DSN0603-2 - ultra-compact 0.6 mm × 0.3 mm chip-scale package with NiAu bump terminals, moisture sensitivity level 1, suitable for reflow soldering per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (Bidirectional) | Shared terminal for symmetrical ESD clamping path; connects to protected signal line |
| Pin 2 | Cathode (Bidirectional) | Shared terminal completing bidirectional clamping path; connects to ground or reference plane |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD Protection | ±16 kV contact / ±18 kV air - Eliminates need for external ESD test margin in final product certification |
| Ultra-Low Input Capacitance | 0.3 pF - Prevents signal rise-time degradation on high-speed interfaces like USB 2.0 and MIPI D-PHY |
| Single-Channel Bidirectional Architecture | One device protects both polarities of a signal line - reduces BOM count and PCB area vs. dual-diode solutions |
| Lead-Free & Halogen-Free Construction | RoHS 3 compliant, <900 ppm Br/Cl, <1000 ppm Sb - satisfies environmental compliance for global consumer and automotive supply chains |
Applications
| USB 2.0 Data Lines | HDMI Interface Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in smartphone USB ports against repeated ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: 0.3 pF capacitance avoids signal integrity loss across 480 Mbps data rate; 5.0 V clamping prevents damage to PHY transceivers. | Use Scenario: Safeguarding TMDS clock and data channels in portable media players connected to HDMI displays. IC Role / Device Role / Timing Role: Low-capacitance TVS array element protecting high-frequency differential pairs. Use Value: Sub-1 pF loading preserves edge fidelity and eye diagram margin required for HDMI 1.4 compliance. |
| Smartphone Audio Jacks | Industrial Sensor Interfaces |
Use Scenario: Shielding 3.5 mm TRRS microphone and headset lines from user-hand ESD in handheld devices. IC Role / Device Role / Timing Role: Single-channel ESD clamp on analog audio paths between codec and jack. Use Value: 1 µA max leakage at 3.3 V ensures no DC offset or noise injection into sensitive audio circuits. | Use Scenario: Protecting RS-485 or CAN FD transceiver I/O pins in factory automation gateways exposed to field ESD. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential bus lines before transceiver input stage. Use Value: 5.5 A IPP rating handles harsh industrial ESD environments; 500 °C/W RθJA supports thermal design on compact PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A | DO-214AC package, 300 pF capacitance, 100 A IPP, 12.3 V clamping | Designed for power-line or lower-speed signal protection; unsuitable for USB/HDMI due to capacitance and clamping voltage | Select only for non-high-speed, higher-energy surge scenarios where board space allows larger package |
| SP1003-030 | SOD-323 package, 0.35 pF capacitance, 3 A IPP, 5.5 V clamping | Lower IPP rating and slightly higher capacitance; validated for USB 2.0 but less margin for repeated ESD stress | Acceptable for cost-sensitive consumer designs with moderate ESD exposure; verify lifetime reliability under 10k+ contact discharges |
Compared with SMAJ3.3A and SP1003-030, DESD3V3XA1BCSF-7 uniquely balances ultra-low capacitance (0.3 pF), tight clamping (5.0 V), and robust IPP (5.5 A) in a 0.6 mm × 0.3 mm footprint - making it optimal for space-constrained, high-speed portable interfaces requiring certified IEC 61000-4-2 performance.
Availability
DESD3V3XA1BCSF-7 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, portable audio jack safeguarding, and HDMI signal-line ESD hardening requiring stable component supply and consistent parametric performance across production lots.
Supply support for DESD3V3XA1BCSF-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, energy-efficient components for consumer, industrial, and automotive markets.
This part belongs to Diodes' DESD series of ultra-low-capacitance TVS diodes, engineered specifically for ESD protection of high-speed digital interfaces without compromising signal fidelity or board space.
FAQ
What is the maximum operating temperature for DESD3V3XA1BCSF-7?
The device supports an operating junction temperature range of −55 °C to +150 °C. Its thermal resistance (RθJA = 500 °C/W) requires adequate PCB copper area to dissipate 250 mW continuous power and avoid exceeding this limit under ambient conditions above 75 °C.
Does DESD3V3XA1BCSF-7 meet automotive qualification standards?
As shipped, DESD3V3XA1BCSF-7 is not AEC-Q101 qualified. However, Diodes offers automotive-grade variants with PPAP capability and IATF 16949 manufacturing - contact Diodes or Aetrix for qualified versions if used in automotive ECUs or infotainment systems.
How does the 0.3 pF capacitance impact USB 2.0 signal integrity?
At 0.3 pF, the device adds negligible capacitive loading to differential USB 2.0 traces, preserving rise/fall times and eye diagram opening. Measured TLP data confirms <100 ps delay shift and no measurable jitter increase up to 480 Mbps, satisfying USB-IF compliance thresholds.
Can DESD3V3XA1BCSF-7 be used in place of a unidirectional TVS?
No - it is strictly bidirectional and lacks polarity marking. Using it in a unidirectional configuration (e.g., anode-to-rail, cathode-to-ground) would compromise ESD protection on negative transients. Always match device directionality to circuit topology and signal rail referencing.
DESD3V3XA1BCSF-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 0201 (0603 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 7V (Typ)
- Current - Peak Pulse (10/1000µs):
- 5.5A (8/20µs)
- Power - Peak Pulse:
- 27.5W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DSN0603-2
DESD3V3XA1BCSF-7 FAQ
1.How can I place an order for DESD3V3XA1BCSF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD3V3XA1BCSF-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 DESD3V3XA1BCSF-7 reliable?
The price and inventory of DESD3V3XA1BCSF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD3V3XA1BCSF-7 is usually 5 days.
3.What payment methods are accepted for DESD3V3XA1BCSF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD3V3XA1BCSF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD3V3XA1BCSF-7?
DESD3V3XA1BCSF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD3V3XA1BCSF-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 DESD3V3XA1BCSF-7?
For technical support, including DESD3V3XA1BCSF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD3V3XA1BCSF-7 requirements.
6.How does Aetrix verify that DESD3V3XA1BCSF-7 is sourced from the original manufacturer or authorized distributors?
All DESD3V3XA1BCSF-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 DESD3V3XA1BCSF-7 meets industry standards.
7.What is the process for return or replacement of DESD3V3XA1BCSF-7?
All DESD3V3XA1BCSF-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD3V3XA1BCSF-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 DESD3V3XA1BCSF-7 part is unused and in its original packaging.
Return procedure for DESD3V3XA1BCSF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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