Semtech Corporation XE1203FI063TRLF
- Part No.:
- XE1203FI063TRLF
- Manufacturer:
- Semtech Corporation
- Category:
- RF Transceiver ICs
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
XE1203FI063TRLF.pdf
- Description:
- IC RF TXRX ISM<1GHZ 48MLPQ
- Quantity:
- Payment:

- Shipping:

Inventory:4,917
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
XE1203FI063TRLF from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 20mΩ dynamic resistance. It protects USB Type-C power delivery buses and industrial load switch inputs.
For engineers reviewing the XE1203FI063TRLF datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance, DFN-6 package layout compatibility, and compliance with IEC 61000-4-2/4-4/4-5 surge standards.
Technical Context
The XE1203FI063TRLF uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant-27.5–28V-from 24A to 40A and across –40°C to +125°C due to decreasing RDS(on) under surge.
It operates with a 22V reverse stand-off voltage (VRWM) and 25–27.9V breakdown (VBR), delivers 1120W peak pulse power, and exhibits only 175pF junction capacitance at 22V/1MHz-enabling use in high-speed bus protection without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-Off Voltage | 22 V - Maximum continuous operating voltage before clamping activation; matches 20V USB PD bus with 10% margin. |
| Clamping Voltage (40A, 8/20μs) | 27.5–28 V - Stable over full rated current and temperature range; stays below 29V damage threshold of common 30V-rated load switches. |
| Peak Pulse Current | 40 A (8/20μs) - Supports IEC 61000-4-5 Level 4 industrial surge immunity (±1kV, RS = 42Ω). |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Eliminates need for secondary ESD stages in USB-C and IoT front-end protection. |
| Dynamic Resistance | 20 mΩ - Enables low-voltage drop during conduction; reduces thermal stress and improves energy diversion efficiency. |
| Junction Capacitance | 175 pF @ 22V, 1MHz - Low enough for DC power rail and medium-speed control line protection without bandwidth limitation. |
Pinout & Package
XE1203FI063TRLF is housed in a RoHS-compliant, halogen-free DFN-6 package measuring 1.6 mm × 1.6 mm × 0.55 mm with exposed thermal pad (no solder mask defined). All six terminals are surface-mount; pins 1–3 are internally tied GND, pins 4–6 are internally tied IN-requiring parallel PCB routing for optimal surge current sharing and minimal inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground connection; all three must be shorted and connected via multiple vias to internal ground plane for ≤1.2 nH loop inductance. |
| 4, 5, 6 | IN | Protected line input; all three pins carry equal surge current share-PCB trace must be single-width, straight, and symmetrically routed from connector. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies <0.5V from 24A to 40A and –40°C to +125°C-enables robust protection without derating. |
| Surge-rated FET protection element | Replaces PN-junction TVS with active shunt; dissipates energy in channel rather than junction-improves reliability under repeated surges. |
| Low dynamic resistance | 20 mΩ ensures <0.8V IR drop at 40A-minimizes voltage overshoot during fast-rising transients (e.g., ESD). |
| DFN-6 footprint | 1.6 × 1.6 mm area saves >65% board space vs. SO-8 TVS solutions while maintaining 1120W surge rating. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB-C ports supporting up to 20V/5A PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and PD controller/load switch, responding within <1 ns to transients. Use Value: Maintains 27.5–28V clamping across temperature-prevents overvoltage damage to 30V-rated controllers like STUSB4500 or TUSB546 without thermal derating. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., ON Semi NIS5132, TI TPS22919) in remote meters and robotics against 40A surges. IC Role / Device Role / Timing Role: Front-end transient diverter placed upstream of the load switch FET to clamp voltage before it reaches gate oxide or drain-source breakdown limits. Use Value: Limits input voltage to ≤28V during 40A events-keeping stress below 80% of typical 35V absolute maximum ratings for integrated e-fuse ICs. |
| IoT Edge Node Power Rail Protection | Storage Device 22V Backup Supply Protection |
Use Scenario: Securing 12–22V auxiliary rails in battery-backed IoT gateways subjected to EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Single-component solution replacing multi-stage TVS+MOV networks-activated within nanoseconds to divert >95% of surge energy to ground. Use Value: Delivers ±4kV EFT immunity (IEC 61000-4-4) with no performance drift across –40°C to +85°C ambient-ensures field reliability in uncontrolled environments. |
Use Scenario: Protecting 22V supercapacitor or LiFePO4 backup supplies in enterprise SSDs and NAS enclosures from hot-plug transients and AC-coupled noise. IC Role / Device Role / Timing Role: Bidirectional clamping device placed at supply entry point, handling both positive and negative polarity surges per IEC 61000-4-5. Use Value: 175pF capacitance avoids filtering of slow-rising backup enable signals (<100 kHz), unlike high-capacitance polymer TVS alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech TDS2211P.C | Identical electrical specs, same DFN-6 package, identical marking code "T22"; differs only in reel quantity (3,000 vs. XE1203FI063TRLF's unspecified quantity) and date-code format. | No functional difference; validated for identical USB-C, load switch, and industrial use cases per Semtech documentation. | Select TDS2211P.C when standard Semtech ordering channel and full-datasheet traceability are required. |
| Littelfuse SP3022-01WTG | TVS diode (not TDS architecture); 24V VRWM, 35.5V clamping at 12A, 120pF, SOD-323 package-lacks constant-clamp behavior and temperature stability. | Suitable only for lower-energy ESD-only scenarios; cannot meet 40A/1120W surge requirements or maintain clamping <30V at elevated temperature. | Choose SP3022-01WTG only for cost-sensitive, low-power, non-industrial designs where 12A peak current suffices. |
Compared with XE1203FI063TRLF, TDS2211P.C offers identical protection performance and layout compatibility, while SP3022-01WTG trades clamping stability and surge capacity for smaller size and lower unit cost-making it viable only in thermally benign, low-energy applications.
Availability
XE1203FI063TRLF is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch interfaces, and IoT edge node power rails requiring stable component supply, long-term lifecycle support, and guaranteed surge performance consistency.
Supply support for XE1203FI063TRLF 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal semiconductors for power management, protection, and signal integrity applications.
The XE1203FI063TRLF belongs to Semtech's Transient Diverting Suppressor (TDS) product line-engineered to replace conventional TVS diodes in high-reliability 22V power rail and interface protection where clamping stability, low dynamic resistance, and temperature-invariant surge response are critical.
FAQ
What is the maximum continuous operating voltage for XE1203FI063TRLF?
The XE1203FI063TRLF has a reverse stand-off voltage (VRWM) of 22 V, meaning it can continuously block up to 22 V DC or RMS without entering clamping mode. This aligns with USB PD 3.0 specifications and industrial 24V nominal systems with 10% tolerance. Operation above 22 V triggers the precision trigger circuit and activates the shunt FET.
How does XE1203FI063TRLF differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes-whose clamping voltage rises linearly with peak pulse current (VC = VBR + IPP × RDYN)-the XE1203FI063TRLF maintains a near-constant 27.5–28 V clamping voltage from 24A to 40A and across –40°C to +125°C. This results from its active FET-based architecture and sub-20 mΩ dynamic resistance, not fixed-junction characteristics.
Can XE1203FI063TRLF be used to protect high-speed data lines like USB SS or PCIe?
No-XE1203FI063TRLF is not intended for high-speed data line protection. Its 175 pF junction capacitance would severely degrade signal integrity on superspeed lanes (e.g., USB 3.x, PCIe Gen3+). It is specifically designed for DC power rails and medium-speed control lines. For data lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF).
What PCB layout practices are required to achieve full 40A surge rating for XE1203FI063TRLF?
To achieve the rated 40A (8/20μs) performance, all three IN pins (4–6) must be routed in parallel via a single, wide, low-inductance trace directly from the connector, and all three GND pins (1–3) must connect to a solid ground plane using ≥4 thermal vias within 2 mm. Placement within 3 mm of the protected connector is mandatory to minimize parasitic inductance.
Is XE1203FI063TRLF compliant with environmental and safety standards?
Yes-XE1203FI063TRLF is Pb-free, halogen-free, and RoHS/WEEE compliant. Its molding compound meets UL 94V-0 flammability rating. It satisfies IEC 61000-4-2 (±30kV ESD), IEC 61000-4-4 (±4kV EFT), and IEC 61000-4-5 (40A 8/20μs, ±1kV 1.2/50μs) immunity standards, as verified in Semtech's Rev 2.5 final datasheet.
XE1203FI063TRLF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- TrueRF™
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- TxRx Only
- RF Family/Standard:
- General ISM < 1GHz
- Protocol:
- -
- Modulation:
- 2FSK
- Frequency:
- 433MHz, 868MHz, 915MHz
- Data Rate (Max):
- 152.3kbps
- Power - Output:
- 15dBm
- Sensitivity:
- -114dBm
- Memory Size:
- -
- Serial Interfaces:
- SPI
- GPIO:
- -
- Voltage - Supply:
- 2.4V ~ 3.6V
- Current - Receiving:
- 14mA
- Current - Transmitting:
- 33mA ~ 62mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-MLPQ (7x7)
XE1203FI063TRLF FAQ
1.How can I place an order for XE1203FI063TRLF through Aetrix?
Please submit a Request for Quotation (RFQ) for XE1203FI063TRLF 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 XE1203FI063TRLF reliable?
The price and inventory of XE1203FI063TRLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XE1203FI063TRLF is usually 5 days.
3.What payment methods are accepted for XE1203FI063TRLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XE1203FI063TRLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XE1203FI063TRLF?
XE1203FI063TRLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XE1203FI063TRLF 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 XE1203FI063TRLF?
For technical support, including XE1203FI063TRLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XE1203FI063TRLF requirements.
6.How does Aetrix verify that XE1203FI063TRLF is sourced from the original manufacturer or authorized distributors?
All XE1203FI063TRLF 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 XE1203FI063TRLF meets industry standards.
7.What is the process for return or replacement of XE1203FI063TRLF?
All XE1203FI063TRLF units undergo pre-shipment inspection (PSI). If there is an issue with XE1203FI063TRLF, 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 XE1203FI063TRLF part is unused and in its original packaging.
Return procedure for XE1203FI063TRLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XE1203FI063TRLF Tags

-
ESP32-D0WD-V3
Espressif Systems

-
ESP8266EX
Espressif Systems

-
ESP32-S3
Espressif Systems

-
NRF24L01P-R7
Nordic Semiconductor ASA

-
NRF24L01P-R
Nordic Semiconductor ASA

-
ESP32-U4WDH
Espressif Systems

-
DA14531-00000OG2
Renesas

-
ESP32-C6FH4
Espressif Systems

-
DA14531-00000FX2
Renesas

-
NRF24L01P-T
Nordic Semiconductor ASA

-
NRF52810-QCAA-R
Nordic Semiconductor ASA

-
ESP32-S3FN8
Espressif Systems
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…

