My Inquiry
My Account
Texas Instruments TSD05CDYFR
- Part No.:
- TSD05CDYFR
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
TSD05CDYFR.pdf
- Description:
- TVS DIODE 5.5VWM 14VC SOD-323
- Quantity:
- Payment:
- Shipping:
Inventory:4,750
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSD05CDYFR from Texas Instruments is a bidirectional transient voltage suppression (TVS) diode in SOD-323 package, designed for ESD and surge protection of low-voltage signal lines. It delivers ±30 kV IEC 61000-4-2 contact/air-gap ESD immunity, clamps transients to ≤15 V at 30 A (8/20 µs), and features 5.5 V reverse stand-off voltage, <7 pF typical capacitance, and ≤10 nA leakage at 5.5 V - ideal for USB VBUS and high-speed data line protection in consumer and industrial electronics.
For engineers reviewing the TSD05CDYFR datasheet, TSD05CDYFR pinout, TSD05CDYFR application, or TSD05CDYFR equivalent, this page provides verified electrical specs, thermal derating behavior, SOD-323 layout guidance, and direct alternatives for I/O protection design-in with minimal parasitic impact.
Technical Context
The TSD05CDYFR operates as a symmetrical, bidirectional clamping device with identical forward and reverse breakdown characteristics. Its low dynamic resistance (0.15 Ω) ensures tight voltage clamping during fast transients, while its ultra-low capacitance preserves signal integrity on 5 V interfaces like USB 2.0 and I²C.
Rated for industrial temperature range (–55°C to +150°C) and compliant with IEC 61000-4-2 Level 4 and IEC 61000-4-5 (6.5–30 A, 8/20 µs), it integrates into compact PCB layouts via standard SOD-323 footprint without requiring external biasing or control logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage (VRWM) | 5.5 V - maximum continuous operating voltage before conduction begins; sets upper limit for protected line voltage (e.g., USB VBUS nominal 5 V). |
| Breakdown Voltage (VBR) | 7–9 V at 1 mA - defines onset of avalanche clamping; ensures robust margin above VRWM for noise immunity. |
| Clamping Voltage (VCLAMP) | 11.5–15 V at 30 A (8/20 µs) - peak voltage seen by downstream IC during worst-case surge; keeps protected devices within safe SOA. |
| Line Capacitance (CL) | 4–7 pF at 1 MHz - enables use on high-speed digital lines (e.g., USB 2.0, HDMI DDC) without signal distortion or rise-time degradation. |
| ESD Rating (IEC 61000-4-2) | ±30 kV contact / ±30 kV air-gap - exceeds Level 4 requirement; eliminates need for secondary ESD stages in end-equipment certification. |
| Leakage Current (ILEAK) | ≤10 nA at 5.5 V - negligible power loss in battery-powered or always-on systems; avoids false triggering in high-impedance sensing nodes. |
| Peak Pulse Power (PPP) | 400 W at 25°C - energy-handling capability for short-duration surges; derates linearly to ~200 W at 125°C ambient per Figure 5-11. |
Pinout & Package
Package: SOD-323 (DYF), 2-pin surface-mount, 2.65 mm × 1.3 mm footprint, 1.0 mm max height. Industry-standard leaded package with gull-wing leads for reliable reflow soldering and IPC-compliant board layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O | Protected signal/power line terminal; bidirectional - connects to line under protection (e.g., USB D+, VBUS, or sensor output). |
| 2 | I/O | Second terminal of symmetrical TVS; must be connected to system ground (GND) to complete clamping path for transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical positive/negative breakdown (VBR = 7–9 V both polarities) enables single-device protection of AC-coupled or floating lines without polarity concerns. |
| Ultra-low capacitance | 4–7 pF typical - preserves signal edge rates on 480 Mbps USB 2.0 and other >10 MHz interfaces without added jitter or attenuation. |
| Low dynamic resistance | 0.15 Ω - minimizes voltage overshoot during fast transients (TLP 100 ns), ensuring clamping stays within IC absolute maximum ratings. |
| Extended temperature range | –55°C to +150°C operation - supports deployment in automotive under-hood modules, industrial motor drives, and medical equipment with wide ambient swings. |
| IEC 61000-4-5 surge rating | 30 A (8/20 µs) peak pulse current - withstands lightning-induced surges on power rails and long cable runs per EN 61000-4-5 Class 3. |
Applications
| USB VBUS Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting 5 V USB VBUS line against hot-plug ESD and cable discharge events in portable docking stations and peripheral hubs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between VBUS and GND, absorbing ±30 kV ESD strikes before they reach USB controller or power switch IC. Use Value: Prevents latch-up or gate oxide damage in 5 V-rated USB power delivery ICs while maintaining <7 pF loading to avoid VBUS droop or inrush timing violations. |
Use Scenario: Safeguarding analog sensor outputs (e.g., 4–20 mA loop transmitters, RTD bridges) exposed to field wiring in factory automation panels. IC Role / Device Role / Timing Role: Low-leakage (≤10 nA) TVS across sensor output and ground, suppressing induced surges from nearby motor switching or relay coil flyback. Use Value: Maintains measurement accuracy by avoiding DC offset shift from leakage current, while clamping transients to <15 V to protect 24 V input-stage op-amps. |
| Medical Patient Monitoring Port | Retail Point-of-Sale Terminal |
|
Use Scenario: ESD protection for ECG/SpO₂ electrode interface connectors subject to repeated human contact in clinical environments. IC Role / Device Role / Timing Role: High-reliability TVS on biopotential input lines, meeting IEC 60601-1-2 4th edition ESD immunity requirements without adding noise or capacitance. Use Value: Enables certified 4 kV contact / 8 kV air-gap immunity with <7 pF capacitance - critical for preserving microvolt-level signal fidelity in front-end amplifiers. |
Use Scenario: Surge suppression on RS-232/RS-485 communication ports of barcode scanners and receipt printers exposed to static-prone retail floors. IC Role / Device Role / Timing Role: Fast-response TVS on differential bus lines, clamping 8/20 µs surges up to 30 A while maintaining common-mode rejection. Use Value: Eliminates field failures from electrostatic discharge during operator handling, with symmetric clamping preventing data corruption on full-duplex serial links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Unidirectional, 5.0 V VBR, 400 W PPP, SMA package (larger, 4.5 mm × 2.7 mm) | Requires separate GND-referenced placement; unsuitable for AC or floating lines without additional components. | Select when cost sensitivity outweighs board space constraints and unidirectional protection suffices (e.g., DC power rail only). |
| TPD4E05U06DQAR | Quad-channel, 5.5 V VRWM, 0.5 pF per channel, DQFN-10 package, integrated ESD array | Offers multi-line protection in one device but lacks 30 A surge rating; rated for 4 A (8/20 µs) only. | Prefer for space-constrained designs protecting multiple low-capacitance data lines (e.g., USB D+/D− + ID + VBUS), where peak surge current is <4 A. |
Compared with SMAJ5.0A and TPD4E05U06DQAR, the TSD05CDYFR uniquely combines bidirectional 5.5 V clamping, 30 A surge capability, and SOD-323 compactness - making it optimal for single-line, high-reliability I/O protection where polarity independence and layout simplicity are critical.
Availability
TSD05CDYFR is available at Aetrix Electronics and suitable for USB VBUS protection, industrial sensor interface hardening, and medical patient monitoring port safeguarding requiring stable component supply across production lifecycles.
Supply support for TSD05CDYFR 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 leader delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, precision, and power efficiency.
The TSDxxC family was engineered specifically for robust, low-parasitic ESD/surge protection in space-constrained consumer, industrial, and medical systems - prioritizing clamping performance, thermal stability, and manufacturability in standard SMD packages.
FAQ
What is the maximum continuous operating voltage for TSD05CDYFR?
The TSD05CDYFR has a reverse stand-off voltage (VRWM) of 5.5 V, meaning it can safely operate continuously at up to 5.5 V without entering avalanche conduction. This makes it suitable for protecting nominal 5 V lines such as USB VBUS, where system voltage remains within specification under normal conditions. Exceeding VRWM risks premature conduction and increased leakage.
Does TSD05CDYFR require orientation during PCB placement?
No - the TSD05CDYFR is a fully bidirectional TVS diode with symmetrical I/O terminals (Pin 1 and Pin 2). Either pin may connect to the protected line and the other to ground; no polarity marking or orientation dependency exists. This simplifies layout and eliminates risk of reverse installation errors in high-volume manufacturing.
How does TSD05CDYFR perform under elevated temperature conditions?
The TSD05CDYFR maintains full functionality from –55°C to +150°C. Its peak pulse power (PPP) derates linearly from 400 W at 25°C to approximately 200 W at 125°C (per Figure 5-11), while leakage current stays ≤10 nA up to 125°C and rises to ~20 nA at 150°C (Figure 5-9). This ensures reliable surge handling in thermally demanding environments like motor control enclosures.
Can TSD05CDYFR protect high-speed data lines like USB 2.0?
Yes - with typical capacitance of 4–7 pF at 1 MHz and low dynamic resistance (0.15 Ω), the TSD05CDYFR introduces negligible signal distortion on USB 2.0 (480 Mbps) differential pairs or single-ended lines. Its fast response (<1 ns) and symmetric clamping preserve eye diagram integrity while meeting IEC 61000-4-2 ±30 kV ESD requirements on data paths.
What is the recommended PCB layout for TSD05CDYFR?
TI's official layout (DYF0002A) specifies 0.9 mm pad length, 0.5 mm pad width, 2.6 mm center-to-center spacing, and 0.07 mm solder mask clearance around pads. Keep traces short and direct between protected line and ground, minimize loop area, and avoid vias in the protection path. Use solid ground plane beneath the device to maximize thermal dissipation and clamping effectiveness.
TSD05CDYFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- 7V
- Voltage - Clamping (Max) @ Ipp:
- 14V
- Current - Peak Pulse (10/1000µs):
- 30A (8/20µs)
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- USB
- Capacitance @ Frequency:
- 4pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
TSD05CDYFR FAQ
1.How can I place an order for TSD05CDYFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TSD05CDYFR 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 TSD05CDYFR reliable?
The price and inventory of TSD05CDYFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSD05CDYFR is usually 5 days.
3.What payment methods are accepted for TSD05CDYFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSD05CDYFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSD05CDYFR?
TSD05CDYFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSD05CDYFR 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 TSD05CDYFR?
For technical support, including TSD05CDYFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSD05CDYFR requirements.
6.How does Aetrix verify that TSD05CDYFR is sourced from the original manufacturer or authorized distributors?
All TSD05CDYFR 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 TSD05CDYFR meets industry standards.
7.What is the process for return or replacement of TSD05CDYFR?
All TSD05CDYFR units undergo pre-shipment inspection (PSI). If there is an issue with TSD05CDYFR, 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 TSD05CDYFR part is unused and in its original packaging.
Return procedure for TSD05CDYFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSD05CDYFR 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
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
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…
