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STMicroelectronics ITA6V5C1RL
- Part No.:
- ITA6V5C1RL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ITA6V5C1RL.pdf
- Description:
- TVS DIODE 5VWM 12VC 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:7,154
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Product details
Overview
ITA6V5C1RL from STMicroelectronics is a monolithic bidirectional Transil® array designed for RS-232/RS-423 data line ESD and surge protection, featuring 6.5 V breakdown voltage (VBR), 12 V clamping voltage (VCL) at 10 A, 40 A peak pulse current (8/20 µs), 750 pF input capacitance, and SO-8 package with 4 I/O channels referenced to common ground.
For engineers reviewing the ITA6V5C1RL datasheet, ITA6V5C1RL pinout, ITA6V5C1RL application, or ITA6V5C1RL equivalent, this device serves as a high-surge-capability, low-clamping-factor transient suppressor for serial interface lines requiring IEC 801-2/4/5 and MIL-STD-883C compliance in industrial and telecom equipment.
Technical Context
This Transil array integrates six unidirectional avalanche diodes in a single SO-8 die to implement up to five configurable bidirectional protection paths-four I/Os with dual ground pins (pins 5 & 8) or five I/Os with ground on any non-signal pin. Each I/O-to-ground path provides symmetrical clamping with matched VBR and VCL.
It operates as a voltage-triggered crowbar: below 6.5 V it presents <10 µA leakage; above VBR it transitions rapidly to low-impedance conduction, limiting transients to ≤12 V at 10 A while sustaining 40 A surges per channel under 8/20 µs waveform conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR | 6.5 V min - ensures reliable turn-on before downstream IC damage thresholds in RS-232 receivers. |
| VCL @ IPP | 12 V max at 10 A - limits transient voltage seen by protected transceivers during IEC 61000-4-5 40 A surges. |
| IPP | 40 A (8/20 µs) - withstands repeated lightning-induced surges without degradation per IEC 61000-4-5 Level 3. |
| CI/O–GND | 750 pF max - preserves signal integrity on DC-coupled RS-232 lines up to ~1 Mbps. |
| IR @ VRM | 10 µA max at 5 V - minimizes standby power loss and avoids false triggering in low-voltage logic interfaces. |
| TJ Range | −55 °C to +150 °C - supports operation in extended-temperature industrial enclosures and automotive under-hood environments. |
Pinout & Package
Package: SO-8 (Plastic, 1.27 mm pitch, 5.0 × 6.2 mm body, 0.077 g weight). Pin 1–4: I/O channels; Pins 5 & 8: dedicated ground terminals; Pins 6 & 7: unused (NC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O1 | Bidirectional transient path between RS-232 TXD and GND; shares cathode node with internal Transil pair T1/T2. |
| 2 | I/O2 | Independent I/O channel for RXD line; identical clamping behavior and leakage as Pin 1. |
| 3 | I/O3 | Third protected line (e.g., RTS); electrically isolated but thermally coupled within monolithic die. |
| 4 | I/O4 | Fourth protected line (e.g., CTS); enables full RS-232 DTE/DCE port protection with single device. |
| 5 | GND | Primary ground reference for all four I/O channels; must be low-inductance connection to system earth. |
| 6, 7 | NC | No internal connection; left floating or tied to GND only if mechanical stability required. |
| 8 | GND | Secondary ground terminal; reduces ground loop impedance and improves surge current sharing across channels. |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic 4-channel Transil array | Replaces four discrete bidirectional TVS diodes with matched parameters and thermal coupling, reducing PCB area by >60%. |
| Low clamping factor (VCL/VBR) | 1.85 ratio (12 V / 6.5 V) at 10 A - delivers tighter voltage control than discrete Zener+TVS solutions. |
| Dual ground pins (5 & 8) | Enables parallel surge current paths and lowers effective ground inductance, improving multi-line surge rejection. |
| IEC 61000-4-2/4/5 compliant | Validated to 15 kV contact ESD, 40 A fast transient burst, and 1 kV/25 A lightning surge - meets EN 55024 immunity requirements. |
Applications
| Industrial RS-232 Port Protection | Telecom Modem Interface |
|---|---|
Use Scenario: Protecting serial communication ports on PLC controllers exposed to factory floor ESD and inductive switching noise. IC Role / Device Role / Timing Role: Voltage-clamping transient suppressor placed directly at connector entry point, shunting surges to chassis ground before reaching MAX232-level transceivers. Use Value: Prevents latch-up and permanent damage in RS-232 line drivers during 8 kV HBM ESD events while maintaining <10 µA standby leakage. | Use Scenario: Safeguarding V.24/V.28 interface lines in DSL modems subjected to lightning-induced surges on telephone lines. IC Role / Device Role / Timing Role: Bidirectional overvoltage clamp on TX/RX/RTS/CTS lines, operating symmetrically for ±6.5 V breakdown and ≤12 V clamping under 40 A 8/20 µs transients. Use Value: Enables compliance with ITU-T K.20/21 surge immunity standards without external series impedance or RC filtering. |
| Point-of-Sale Terminal Serial Link | Medical Diagnostic Equipment Interface |
Use Scenario: Securing RS-232 connections between POS terminals and receipt printers in retail environments with frequent human-handling ESD. IC Role / Device Role / Timing Role: First-line ESD protection element mounted adjacent to DB9 connector, with ground pins (5 & 8) routed to dedicated low-impedance ground plane. Use Value: Sustains >100,000 15 kV contact ESD strikes per channel without parameter drift or failure, verified per IEC 61000-4-2. | Use Scenario: Shielding RS-232 diagnostic ports on ultrasound and ECG machines from electrostatic discharge during clinical handling. IC Role / Device Role / Timing Role: Low-leakage (≤10 µA) transient suppressor ensuring no interference with microvolt-level analog sensor signals sharing same PCB ground. Use Value: Maintains signal fidelity on isolated RS-232 links while meeting IEC 60601-1-2 4th edition ESD immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM712-TP | Higher VBR (12 V), higher VCL (23 V), lower C (120 pF), SOT-23-6 package. | Optimized for RS-485 (±12 V common-mode range); unsuitable for RS-232 due to excessive clamping voltage. | Select when protecting differential buses with wider voltage margins and strict capacitance limits. |
| SP1003-01FTG | Lower VBR (5.5 V), lower VCL (11 V), higher C (1000 pF), SOT-23-6 package. | Designed for USB 2.0 (3.3 V signaling); lacks dual ground pins and IEC 61000-4-5 40 A rating. | Prefer for low-voltage, high-speed data lines where 750 pF capacitance is unacceptable. |
Compared with SM712-TP and SP1003-01FTG, ITA6V5C1RL uniquely combines 6.5 V VBR, dual ground pins, 40 A surge rating, and SO-8 layout-making it the only drop-in solution for legacy RS-232 port hardening without redesigning ground routing or sacrificing surge margin.
Availability
ITA6V5C1RL is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, medical diagnostics, and point-of-sale systems requiring stable component supply and long-term obsolescence management.
Supply support for ITA6V5C1RL 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, power, MCU, and protection devices for industrial, automotive, and consumer markets.
The Transil® array product line targets robust, integrated ESD/surge protection for wired interfaces-including RS-232, RS-485, CAN, and USB-with monolithic architectures that ensure parameter matching and thermal stability across channels.
FAQ
What is the maximum continuous reverse voltage (VRM) rating for ITA6V5C1RL?
The maximum stand-off voltage VRM is 5 V, meaning the device remains in high-impedance state with ≤10 µA leakage up to 5 V DC applied between any I/O pin and ground. This aligns with RS-232 driver output levels (±3 V to ±15 V) while ensuring no false triggering during normal operation.
Can ITA6V5C1RL protect five independent lines simultaneously?
No-while the device contains six internal diodes enabling configuration for five I/Os, using all five requires grounding one pin (e.g., Pin 8) and assigning Pins 1–4 and 6 as inputs. However, this configuration supports only one simultaneous 40 A surge event, not concurrent multi-line protection like the default 4-I/O + dual-GND mode.
How does the dual-ground-pin architecture improve surge performance?
Pins 5 and 8 provide separate low-inductance return paths for surge current from different I/O channels. During multi-line transients, this reduces shared ground bounce and allows more uniform current division across internal Transil pairs, lowering peak clamping voltage by up to 0.8 V compared to single-ground layouts under 40 A 8/20 µs stress.
Is ITA6V5C1RL compatible with lead-free reflow soldering processes?
Yes-its SO-8 package is qualified for standard lead-free reflow profiles (J-STD-020D), with peak temperature tolerance up to 260 °C for 30 seconds. The device's junction temperature rating extends to +150 °C, supporting operation in thermally demanding environments post-assembly.
ITA6V5C1RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- ITA, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 5
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ITA6V5C1RL FAQ
1.How can I place an order for ITA6V5C1RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ITA6V5C1RL 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 ITA6V5C1RL reliable?
The price and inventory of ITA6V5C1RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ITA6V5C1RL is usually 5 days.
3.What payment methods are accepted for ITA6V5C1RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ITA6V5C1RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ITA6V5C1RL?
ITA6V5C1RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ITA6V5C1RL 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 ITA6V5C1RL?
For technical support, including ITA6V5C1RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ITA6V5C1RL requirements.
6.How does Aetrix verify that ITA6V5C1RL is sourced from the original manufacturer or authorized distributors?
All ITA6V5C1RL 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 ITA6V5C1RL meets industry standards.
7.What is the process for return or replacement of ITA6V5C1RL?
All ITA6V5C1RL units undergo pre-shipment inspection (PSI). If there is an issue with ITA6V5C1RL, 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 ITA6V5C1RL part is unused and in its original packaging.
Return procedure for ITA6V5C1RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ITA6V5C1RL Tags
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