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Semtech Corporation SCBH6
- Part No.:
- SCBH6
- Manufacturer:
- Semtech Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-Square
- Datasheet:
-
SCBH6.pdf
- Description:
- BRIDGE RECT 1PHASE 600V 4A
- Quantity:
- Payment:
- Shipping:
Inventory:5,757
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Product details
Overview
TDS2211P from Semtech is a transient diverting suppressor 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 24–40A, and 20mΩ dynamic resistance - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the TDS2211P datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature (-40°C to +125°C), low capacitance (175pF @ 22V), DFN 1.6×1.6mm 6-lead package compatibility with high-density USB PD layouts, and FET-based shunt architecture enabling constant-voltage clamping unlike conventional TVS diodes.
Technical Context
The TDS2211P uses a surge-rated MOSFET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events above ~25V breakdown. Unlike standard TVS diodes, its clamping voltage remains nearly flat (27.5–28V) from 24A to 40A due to decreasing RDS(on) under surge conditions.
It operates across -40°C to +125°C with stable clamping performance, minimal temperature drift in breakdown voltage (25–27.9V), and reverse leakage <600nA at 22V - enabling reliable protection in thermally demanding industrial and mobile applications without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC bus voltage it can protect without leakage or degradation. |
| Clamping Voltage | 27.5–28V at 24–40A (1.2/50μs + 8/20μs combo wave, RS=2Ω) - ensures protected ICs (e.g., USB PD controllers) remain below damage thresholds during surges. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness standards for connector-facing protection. |
| Junction Capacitance | 175pF @ 22V, 1MHz - low enough for 22V power rail protection without signal integrity impact on adjacent traces. |
| Dynamic Resistance | 20mΩ (8/20μs, 1–40A range) - enables near-constant clamping by minimizing IR drop increase with rising current. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three pins must be connected to maximize current handling and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS in USB PD); parallel connection of all three pins ensures uniform current sharing and optimal clamping performance. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables flat clamping voltage (27.5–28V) across full 24–40A surge range - avoids voltage runaway seen in TVS diodes. |
| Temperature-stable clamping | Clamping remains within 27.5–28V from -40°C to +125°C - eliminates thermal derating calculations for industrial designs. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) supports repeated lightning-surge events in remote meters and IoT gateways. |
| Low dynamic resistance | 20mΩ ensures minimal voltage overshoot during fast-rising transients - critical for protecting sensitive load switches like HS2950P. |
| Compact DFN footprint | 1.6×1.6mm area saves >60% board space vs. comparable SOT-23 or SOIC TVS solutions - ideal for USB Type-C connectors. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting VBUS lines in USB-C ports supporting up to 20V/5A PD negotiation against ESD, lightning surges, and hot-plug transients. IC Role / Device Role / Timing Role: Primary front-end EOS suppressor placed directly at the connector, shunting surge energy to ground before reaching the PD controller or load switch. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents false overvoltage shutdowns and ensures compliance with USB PD 3.1 robustness requirements. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote sensors, robotics, and smart meters exposed to field surges. IC Role / Device Role / Timing Role: High-current shunt protector that limits voltage across the load switch's internal FET drain-source during EOS events. Use Value: Prevents permanent damage to the load switch's power FET by holding clamping voltage well below its absolute maximum VDS rating (typically ≤30V). |
| IoT Edge Device Power Bus Protection | Storage Device 22V Rail Protection |
|
Use Scenario: Securing 22V auxiliary rails in battery-backed IoT gateways and cellular routers subjected to EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Single-device solution for unsymmetrical line protection, replacing multi-component TVS+RC networks. Use Value: ±4kV EFT immunity (IEC 61000-4-4) and 40A surge capability ensure uninterrupted operation in electrically noisy factory or utility environments. |
Use Scenario: Protecting 22V power inputs of NVMe SSD enclosures and enterprise storage backplanes against hot-swap and insertion transients. IC Role / Device Role / Timing Role: Low-capacitance (175pF), high-power suppressor placed at board edge to prevent latch-up or burnout in PMICs and regulators. Use Value: 175pF capacitance avoids resonance with PCB trace inductance while delivering 1120W peak power dissipation - critical for high-speed storage reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1003-02HTG | Lower working voltage (12V), lower clamping (15.5V), higher capacitance (350pF), SOD-323 package. | Targeted at 3.3–12V data lines (e.g., USB 2.0, I²C), not suitable for 22V power rails. | Select only for sub-15V signal-level protection where space allows larger footprint and higher capacitance is acceptable. |
| SMAJ22A | Standard unidirectional TVS diode, 22V VRWM, 35.5V clamping at 10A, 1000W peak power, DO-214AC package. | Clamping rises with current and temperature (e.g., >40V at 125°C), lacks flat-clamp behavior and FET-based response speed. | Use only in cost-sensitive, non-temperature-critical 22V applications where 35.5V clamping margin is sufficient and layout space permits larger package. |
Compared with SP1003-02HTG and SMAJ22A, the TDS2211P delivers superior 22V-system protection via stable 27.5–28V clamping across current and temperature, compact DFN packaging, and FET-based surge response - making it uniquely suited for USB PD, industrial load switches, and high-reliability 22V power rails.
Availability
TDS2211P is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and 22V IoT power bus protection requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for TDS2211P 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 analog and mixed-signal ICs for precision sensing, protection, and connectivity.
The TDS2211P belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-voltage, high-surge industrial and USB PD applications where clamping stability and thermal resilience are critical.
FAQ
What is the clamping voltage behavior of the TDS2211P across surge current and temperature?
The TDS2211P maintains a tightly regulated clamping voltage of 27.5–28V across its full rated peak pulse current range (24–40A, 1.2/50μs + 8/20μs combo wave) and operating temperature range (-40°C to +125°C). This stability results from its FET-based shunt architecture, where RDS(on) decreases under surge, counteracting IR rise - unlike TVS diodes whose clamping increases linearly with current and temperature. The TDS2211P datasheet confirms this behavior in Figures 3 and 4.
Can the TDS2211P be used for bidirectional protection on a 22V data line?
No - the TDS2211P is a unidirectional device intended for protection of positive-going transients on 22V power or I/O lines referenced to ground. Its functional diagram and electrical specifications (e.g., forward voltage of 0.5V, reverse stand-off of 22V) confirm asymmetric operation. For bidirectional data-line protection (e.g., USB DP/DM), Semtech recommends low-capacitance TVS devices such as RClamp3371ZC, not the TDS2211P.
How does the TDS2211P compare to standard TVS diodes in terms of surge energy handling?
The TDS2211P handles 1120W peak pulse power (8/20μs) at 40A, significantly exceeding most 22V TVS diodes (e.g., SMAJ22A: 400W). More critically, its FET-based architecture dissipates surge energy in the channel rather than the PN junction, avoiding thermal runaway and enabling repeatable 40A surge capability without degradation - validated per IEC 61000-4-5 testing in the TDS2211P datasheet.
What is the recommended PCB layout for optimal performance of the TDS2211P?
Place the TDS2211P as close as possible to the protected connector (e.g., USB-C port). Connect all three IN pins (4,5,6) via a single short, wide trace to the protected line, and tie all three GND pins (1,2,3) directly to a solid ground plane using multiple vias. Avoid thermal pads - energy is dissipated internally. Layout Figure 7 in the TDS2211P datasheet shows this configuration, which minimizes parasitic inductance and ensures full 40A surge capability.
Is the TDS2211P suitable for protecting a 24V industrial control system?
No - the TDS2211P has a 22V working voltage (VRWM) and 25–27.9V breakdown voltage; sustained operation above 22V risks excessive leakage or premature triggering. For 24V systems, Semtech offers the TDS2411P (24V VRWM, 27–30V VBR). Using TDS2211P on a 24V rail would violate its Absolute Maximum Ratings and void reliability guarantees stated in the TDS2211P datasheet Rev 2.5.
SCBH6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 4-Square
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 600 V
- Current - Average Rectified (Io):
- 4 A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 3 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 600 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- -
SCBH6 FAQ
1.How can I place an order for SCBH6 through Aetrix?
Please submit a Request for Quotation (RFQ) for SCBH6 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 SCBH6 reliable?
The price and inventory of SCBH6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SCBH6 is usually 5 days.
3.What payment methods are accepted for SCBH6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SCBH6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SCBH6?
SCBH6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SCBH6 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 SCBH6?
For technical support, including SCBH6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SCBH6 requirements.
6.How does Aetrix verify that SCBH6 is sourced from the original manufacturer or authorized distributors?
All SCBH6 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 SCBH6 meets industry standards.
7.What is the process for return or replacement of SCBH6?
All SCBH6 units undergo pre-shipment inspection (PSI). If there is an issue with SCBH6, 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 SCBH6 part is unused and in its original packaging.
Return procedure for SCBH6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SCBH6 Tags
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