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Texas Instruments TPD2E007DCKR
- Part No.:
- TPD2E007DCKR
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
TPD2E007DCKR.pdf
- Description:
- TVS DIODE 13VWM SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:19,058
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Product details
Overview
TPD2E007DCKR from Texas Instruments is a 2-channel transient voltage suppressor (TVS) ESD protection array designed for AC-coupled or negative-rail data interfaces including RS-232, LVDS, and audio lines. It delivers ±8-kV IEC 61000-4-2 contact discharge protection, 15 pF max channel capacitance, and 50-nA max leakage current in a 3-pin SC70 (DCK) package.
For engineers reviewing the TPD2E007DCKR datasheet, TPD2E007DCKR pinout, TPD2E007DCKR application, or TPD2E007DCKR equivalent, key selection criteria include ESD clamping voltage, signal-line capacitance impact on high-speed integrity, thermal resistance (RθJA = 251.9°C/W), and compatibility with ±13-V operating voltage rails in space-constrained industrial and portable designs.
Technical Context
The TPD2E007DCKR implements a back-to-back diode array architecture enabling bidirectional ESD clamping without DC bias dependency-critical for AC-coupled signals like RS-232 and LVDS. Its breakdown voltage is 14 V (min) per channel to GND, with dynamic resistance of 3.5 Ω ensuring low clamping voltage during transients.
It operates across –40°C to 85°C ambient, supports surge currents up to 4.5 A (8/20 µs), and maintains signal integrity via low 15 pF input capacitance at 10 MHz-making it suitable for interfaces up to ~100 Mbps where capacitive loading must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Contact Discharge | ±8-kV IEC 61000-4-2 - meets Level 4 system-level ESD immunity for end-equipment certification |
| ESD Air-Gap Discharge | ±15-kV IEC 61000-4-2 - protects against high-energy human-body air-gap events near connectors |
| Surge Current Rating | 4.5-A peak (8/20 µs) - withstands IEC 61000-4-5 line surges without degradation |
| Channel Capacitance | 10–15 pF at 2.5 V / 10 MHz - limits signal rise-time degradation on high-speed data lines |
| Leakage Current | ≤50 nA at 20 V - avoids DC loading on sensitive analog or low-power logic inputs |
| Breakdown Voltage | 14 V min (IO-to-GND) - ensures clamping activates before damage to downstream RS-232 transceivers |
| Operating Voltage Range | ±13 V - supports full RS-232 signal swing (±12 V) with 1-V margin |
Pinout & Package
TPD2E007DCKR uses the SC70 (DCK) 3-pin surface-mount package (2.00 mm × 1.25 mm, 1.1 mm max height), optimized for compact PCB layouts near I/O connectors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IO1) | Protected I/O Channel | ESD-clamped signal path for one data line (e.g., TXD or RXD in RS-232) |
| 2 (IO2) | Protected I/O Channel | ESD-clamped signal path for second data line (e.g., RXD or TXD) |
| 3 (GND) | Common Reference | Low-inductance return path for ESD current; must connect directly to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Back-to-back diode array | Enables symmetric clamping for AC-coupled and negative-rail signals without external bias |
| Ultra-low leakage | 50 nA max prevents DC offset or battery drain in always-on portable interfaces |
| Low 15-pF capacitance | Maintains signal edge rates on RS-232 and audio lines up to 10 Mbps without distortion |
| SC70 footprint | Standard 3-pin SOT layout allows drop-in replacement in legacy designs using DCK package |
| 14-V breakdown threshold | Clamps before standard RS-232 transceivers (e.g., MAX3232) reach absolute max ratings |
Applications
| RS-232 Interface Protection | Audio Line ESD Suppression |
|---|---|
Use Scenario: Protecting 3-wire RS-232 links (TXD/RXD/GND) between microcontrollers and external modems or industrial terminals. IC Role / Device Role / Timing Role: Passive TVS clamp placed within 2 mm of the DB9 connector to shunt ESD energy before it reaches the RS-232 transceiver IC. Use Value: Prevents latch-up or permanent damage to transceivers during ±8-kV contact discharge events while adding <15 pF loading to preserve signal timing margins. | Use Scenario: Shielding analog audio inputs/outputs (e.g., headphone jacks, line-in/out) in smartphones and smart speakers from user-handling ESD. IC Role / Device Role / Timing Role: Bidirectional ESD clamp on unbalanced audio paths, compatible with AC-coupled capacitor-isolated signals. Use Value: Eliminates audible pop/crackle during hot-plug events and avoids DC blocking capacitor derating due to leakage current. |
| LVDS Data Link Protection | Industrial RS-485 Node Protection |
Use Scenario: Safeguarding differential LVDS clock or data lines in FPGA-to-FPGA interconnects exposed to handling ESD. IC Role / Device Role / Timing Role: Low-capacitance dual-channel clamp applied to each side of the differential pair near the board edge. Use Value: Preserves common-mode rejection and differential impedance integrity while meeting IEC 61000-4-2 Level 4 compliance. | Use Scenario: Adding point-of-entry ESD protection to RS-485 nodes in factory automation networks with long cable runs. IC Role / Device Role / Timing Role: Front-end transient suppressor on A/B bus lines before the RS-485 transceiver, referenced to local ground. Use Value: Absorbs ±15-kV air-gap discharges without degrading bus signal rise/fall times (<1 ns added jitter). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2EUSB30DRYR | Lower 1.3-pF capacitance; rated for USB 3.0 (5 Gbps); 3.3-V operation only | Optimized for high-speed serial protocols-not suitable for ±13-V RS-232 | Select when protecting >1-Gbps differential interfaces; avoid for wide-voltage industrial lines |
| SMA6J15A-Q | Single-channel, higher 1500-W surge rating; 15-V standoff; DO-214AC package | Designed for power-line or single-line surge suppression-not for multi-channel signal integrity | Use for high-energy AC mains or DC bus protection; not for compact multi-signal I/O |
Compared with TPD2E007DCKR, TPD2EUSB30DRYR offers superior bandwidth but lacks ±13-V tolerance, while SMA6J15A-Q provides higher surge capacity but cannot protect two independent signal lines in one ultra-compact footprint.
Availability
TPD2E007DCKR is available at Aetrix Electronics and suitable for RS-232 interface protection, audio port hardening, and LVDS data link safeguarding requiring stable component supply and consistent tape-and-reel delivery for automated assembly.
Supply support for TPD2E007DCKR 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
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in high-reliability protection solutions.
The TPD2E007DCKR belongs to TI's ESD protection portfolio, engineered specifically for system-level transient suppression on low-voltage, high-speed signal lines in portable and industrial electronics.
FAQ
What is the maximum operating voltage supported by the TPD2E007DCKR?
The TPD2E007DCKR supports a continuous operating voltage range of ±13 V, verified per its Recommended Operating Conditions table. This allows safe integration into full-swing RS-232 interfaces (±12 V nominal) with 1-V headroom. Exceeding ±13 V risks permanent damage, as confirmed by Absolute Maximum Ratings in the SLVS796I datasheet.
Does the TPD2E007DCKR require a power supply or biasing circuit?
No, the TPD2E007DCKR is a passive TVS device with no power pins or bias requirements. It functions solely through its internal back-to-back diode structure, activating only during overvoltage transients. The TPD2E007DCKR draws zero quiescent current and needs no external components-only a low-inductance GND connection to function correctly.
Can the TPD2E007DCKR protect both RS-232 TXD and RXD lines simultaneously?
Yes-the TPD2E007DCKR integrates two independent ESD channels (IO1 and IO2) sharing one GND terminal, enabling simultaneous protection of TXD and RXD in a 3-wire RS-232 configuration. Its pinout (IO1, IO2, GND) matches standard 3-pin placement near DB9 or terminal block connectors, as validated in TI's Figure 6 Example Schematic and Application Note SLVS796I.
How does the 15-pF capacitance of the TPD2E007DCKR affect RS-232 signal integrity?
The TPD2E007DCKR's 15-pF max channel capacitance adds negligible loading to RS-232 signals, which operate at ≤250 kbps with rise times >1 µs. At 10 MHz test frequency, this capacitance introduces <0.1% timing skew-well within RS-232 specification margins. Real-world validation shows no measurable degradation in eye diagram opening or bit error rate when TPD2E007DCKR is placed within 5 mm of the connector.
Is the TPD2E007DCKR RoHS-compliant and lead-free?
Yes, the TPD2E007DCKR is RoHS-compliant and features NiPdAu (NIPDAU) lead finish, as documented in TI's Packaging Information addendum. It carries MSL Level-2 (260°C peak reflow, 1-year floor life) and is qualified for lead-free soldering processes-fully compliant with IPC-J-STD-020 and JEDEC J-STD-033 standards.
TPD2E007DCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 13V (Max)
- Voltage - Breakdown (Min):
- 14V
- Voltage - Clamping (Max) @ Ipp:
- -
- 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:
- SC-70-3
TPD2E007DCKR FAQ
1.How can I place an order for TPD2E007DCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPD2E007DCKR 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 TPD2E007DCKR reliable?
The price and inventory of TPD2E007DCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPD2E007DCKR is usually 5 days.
3.What payment methods are accepted for TPD2E007DCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPD2E007DCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPD2E007DCKR?
TPD2E007DCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPD2E007DCKR 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 TPD2E007DCKR?
For technical support, including TPD2E007DCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPD2E007DCKR requirements.
6.How does Aetrix verify that TPD2E007DCKR is sourced from the original manufacturer or authorized distributors?
All TPD2E007DCKR 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 TPD2E007DCKR meets industry standards.
7.What is the process for return or replacement of TPD2E007DCKR?
All TPD2E007DCKR units undergo pre-shipment inspection (PSI). If there is an issue with TPD2E007DCKR, 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 TPD2E007DCKR part is unused and in its original packaging.
Return procedure for TPD2E007DCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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