My Inquiry
My Account
Semtech Corporation RCLAMP0508M.T
- Part No.:
- RCLAMP0508M.T
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
RCLAMP0508M.T.pdf
- Description:
- TVS DIODE 5VWM 25VC 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,704
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RCLAMP0508M.T from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 175pF junction capacitance - deployed in USB Type-C PD bus protection and industrial load switch input stages.
For engineers reviewing the RCLAMP0508M.T datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, temperature-stable clamping behavior, and direct alternatives for 22V bus-level surge suppression in USB PD, IoT, and industrial equipment designs.
Technical Context
The RCLAMP0508M.T 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 across 24–40A peak pulse current due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with stable 27.5–28V clamping at 40A (1.2/50μs + 8/20μs combination waveform, RS = 2Ω), 22V reverse stand-off voltage, and 20mΩ dynamic resistance - enabling robust protection where thermal drift and current-dependent voltage rise would compromise standard TVS devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-Off Voltage | 22 V - maximum continuous operating voltage before clamping activation; matches USB PD 20V nominal + margin. |
| Clamping Voltage (IPP = 40A) | 27.5–28 V - limits transient overshoot to safe levels for 24V-tolerant controllers without derating. |
| Peak Pulse Current (8/20μs) | 40 A - withstands IEC 61000-4-5 Level 4 surges (±1kV, RS = 42Ω) on unsymmetrical lines. |
| ESD Withstand (IEC 61000-4-2) | ±30 kV contact & air - exceeds industrial and consumer ESD immunity requirements without external staging. |
| Junction Capacitance | 175 pF @ 22V, 1MHz - low enough for 22V bus protection without signal integrity impact on DC/low-speed lines. |
| Dynamic Resistance | 20 mΩ - ensures minimal voltage rise under high di/dt transients, critical for fast energy diversion. |
| Operating Temperature Range | –40°C to +125°C - supports deployment in automotive-adjacent industrial and outdoor IoT environments. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return for surge current; all three must be connected to minimize parasitic inductance and maximize 40A capability. |
| Pins 4, 5, 6 | IN | Protected line input; tied together to handle full surge current across parallel bond wires - required for rated 40A performance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage vs. IPP | 27.5–28 V across 24–40A range - eliminates need for over-spec'ing IPP to meet voltage thresholds. |
| Temperature-stable clamping | No measurable increase in VC from –40°C to +125°C - enables reliable protection in uncontrolled thermal environments. |
| FET-based shunt architecture | RDS(on) drops under surge - achieves lower dynamic resistance (20 mΩ) than TVS diodes, reducing power dissipation in silicon. |
| High EFT immunity | ±4 kV per IEC 61000-4-4 (5/50 ns, 5 kHz & 100 kHz) - protects against repetitive burst noise in motor drives and PLCs. |
| Small-footprint DFN package | 1.6 mm × 1.6 mm area - saves >50% board space vs. SO-8 or SOT-23 TVS solutions with comparable ratings. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB-C receptacles supporting up to 20V/5A PD negotiation. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed between connector and PD controller or e-fuse. Use Value: Maintains 27.5–28V clamping at full 40A surge, preventing latch-up or gate oxide damage in PD controllers rated ≤24V. |
Use Scenario: Safeguarding input pins of high-side load switches (e.g., HS2950P) in remote meters and robotics. IC Role / Device Role / Timing Role: Front-end transient clamp limiting voltage seen by internal FET drain-source junction. Use Value: Keeps clamped voltage below 30V, avoiding avalanche failure of 30V-rated load switch MOSFETs during lightning-induced surges. |
| IoT Edge Node Power Rail Protection | Industrial Equipment DC Power Input Stage |
Use Scenario: Securing 12–24V DC input rails in battery-powered gateways exposed to ESD during field servicing. IC Role / Device Role / Timing Role: Single-device solution replacing multi-stage TVS+MOV networks for compact enclosures. Use Value: Delivers ±30kV ESD and 40A surge handling in 2.56 mm² footprint - critical for space-constrained edge nodes. |
Use Scenario: Hardening 24V auxiliary power inputs in PLC I/O modules subject to induced surges from nearby motor switching. IC Role / Device Role / Timing Role: First-line protector upstream of DC-DC converters and microcontrollers. Use Value: Stable 27.5–28V clamping ensures downstream LDOs and supervisors remain within absolute max ratings during 1.2/50μs transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Same manufacturer, identical electrical specs and DFN-6 package; RCLAMP0508M.T is Semtech's commercial-grade marking variant of TDS2211P. | Identical use cases: USB-C PD, load switch input, 22V rail protection. | Select RCLAMP0508M.T for standard commercial supply; TDS2211P.C for tape-and-reel ordering with date-code traceability. |
| uClamp2411ZA | 24V working voltage, ±30kV ESD, but lower 20A IPP and higher 32V clamping at 20A - not rated for 40A IEC 61000-4-5 surges. | Suitable only for CC/SBU lines in USB-C, not main VBus; lacks thermal stability and current capacity for power rail use. | Use uClamp2411ZA only for auxiliary signal lines; RCLAMP0508M.T remains mandatory for primary 22V bus protection. |
Compared with TDS2211P, RCLAMP0508M.T offers identical performance in a drop-in compatible form, while uClamp2411ZA provides lower-cost ESD-only protection but cannot replace RCLAMP0508M.T in surge-critical 22V power applications due to 20A limit and elevated clamping.
Availability
RCLAMP0508M.T is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT edge node power rails requiring stable component supply, full surge compliance, and long-term lifecycle support.
Supply support for RCLAMP0508M.T 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 ICs for precision protection, sensing, and signal integrity.
RCLAMP0508M.T belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace traditional TVS diodes in high-energy EOS applications where stable clamping and temperature resilience are critical.
FAQ
What is the exact package type and dimensions of RCLAMP0508M.T?
RCLAMP0508M.T uses a DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with 6 leads. Pins 1–3 are GND terminals and pins 4–6 are IN terminals - all must be soldered to achieve full 40A surge rating. The package is Pb-free, RoHS-compliant, and carries UL 94V-0 flammability rating.
Does RCLAMP0508M.T provide stable clamping voltage across temperature?
Yes. RCLAMP0508M.T maintains a clamping voltage of 27.5–28 V from –40°C to +125°C at 40A (1.2/50μs + 8/20μs waveform). This stability results from its FET-based shunt architecture, unlike conventional TVS diodes whose clamping rises with temperature - making RCLAMP0508M.T suitable for unheated industrial enclosures.
Can RCLAMP0508M.T replace standard TVS diodes in 22V applications?
Yes - RCLAMP0508M.T is specifically designed as a superior alternative to 22V TVS diodes. It delivers lower and more stable clamping (27.5–28 V vs. typical 35–40 V), higher 40A surge rating, and no thermal derating. Its FET-based operation avoids the linear VC = VBR + IPP × RDYN dependency inherent in PN-junction TVS devices.
What is the junction capacitance of RCLAMP0508M.T and where is it measured?
RCLAMP0508M.T has a junction capacitance of 175 pF, measured at 22 V reverse bias and 1 MHz frequency. This value is confirmed in the Electrical Characteristics table of the official Semtech datasheet and is low enough for DC and low-speed power rail protection without affecting system stability or response time.
Is RCLAMP0508M.T pin-compatible with other Semtech TDS devices?
RCLAMP0508M.T shares the same 6-pin DFN footprint and pinout (GND on pins 1–3, IN on pins 4–6) as TDS2211P and TDS2211P.C. It is a direct form-fit-function replacement - no PCB layout changes are needed when migrating between these part numbers, as all share identical mechanical and electrical specifications.
RCLAMP0508M.T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 8
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 12A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- Yes
- Applications:
- Ethernet, HDMI
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
RCLAMP0508M.T FAQ
1.How can I place an order for RCLAMP0508M.T through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0508M.T 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 RCLAMP0508M.T reliable?
The price and inventory of RCLAMP0508M.T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0508M.T is usually 5 days.
3.What payment methods are accepted for RCLAMP0508M.T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0508M.T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0508M.T?
RCLAMP0508M.T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0508M.T 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 RCLAMP0508M.T?
For technical support, including RCLAMP0508M.T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0508M.T requirements.
6.How does Aetrix verify that RCLAMP0508M.T is sourced from the original manufacturer or authorized distributors?
All RCLAMP0508M.T 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 RCLAMP0508M.T meets industry standards.
7.What is the process for return or replacement of RCLAMP0508M.T?
All RCLAMP0508M.T units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0508M.T, 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 RCLAMP0508M.T part is unused and in its original packaging.
Return procedure for RCLAMP0508M.T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0508M.T 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
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 …
