My Inquiry
My Account
Semtech Corporation SC3BH2F
- Part No.:
- SC3BH2F
- Manufacturer:
- Semtech Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-Rectangle
- Datasheet:
-
SC3BH2F.pdf
- Description:
- BRIDGE RECT 3PHASE 200V 3A
- Quantity:
- Payment:
- Shipping:
Inventory:9,494
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SC3BH2F 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, load switch inputs, and industrial I/O interfaces where stable clamping under temperature and current stress is critical.
For engineers reviewing the SC3BH2F datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, real-world USB PD and load switch protection use cases, and validated alternative parts with documented functional trade-offs.
Technical Context
The SC3BH2F 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 (8/20μs) due to decreasing RDS(on) under surge conditions.
It operates from −40°C to +125°C with <600nA reverse leakage at 22V, 175pF junction capacitance at 22V/1MHz, and maintains stable 27.5–28V clamping across temperature - a key differentiator versus standard TVS devices whose clamping rises linearly with current and temperature.
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 40A (8/20μs + 1.2/50μs combo wave, RS = 2Ω) - ensures protected ICs (e.g., USB PD controllers) stay below damage thresholds |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD systems |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without external shielding |
| Dynamic Resistance | 20mΩ - enables low-voltage drop during surge conduction, minimizing power dissipation and thermal stress |
| Junction Capacitance | 175pF at 22V/1MHz - compatible with USB Type-C VBUS protection where signal integrity is secondary to robustness |
Pinout & Package
SC3BH2F is housed in a RoHS-compliant, halogen-free DFN package measuring 1.6mm × 1.6mm × 0.55mm with 6 leads and UL 94V-0 molding compound. The package supports high-density PCB layouts and requires no thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three must be connected via low-inductance paths to maximize 40A capability |
| 4, 5, 6 | IN | Protected line input (e.g., USB PD VBUS, load switch VIN); parallel connection ensures uniform current sharing and lowest impedance path |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage stays within 27.5–28V from 24A to 40A and −40°C to +125°C - eliminates derating uncertainty in thermal design |
| FET-based shunt protection | Replaces traditional TVS junctions with low-RDS(on) MOSFET, reducing energy dissipation in silicon and improving reliability under repeated surges |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against burst noise in motor drives and industrial PLCs |
| Low-leakage operation | <600nA at 22V - avoids loading of high-impedance power rails or battery-backed circuits |
Applications
| USB Type-C Power Delivery Protection | Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the 20–22V VBUS line in USB-C receptacles supporting up to 100W PD negotiation. IC Role / Device Role / Timing Role: Primary EOS suppressor placed between connector and PD controller/load switch, clamping transients before they reach sensitive logic. Use Value: Maintains 28V clamping at full 40A surge and 125°C ambient - prevents false overvoltage shutdown and ensures PD compliance under worst-case thermal conditions. |
Use Scenario: Shielding the input of industrial-grade load switches (e.g., HS2950P) from lightning-induced surges in remote meters and robotics. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage across the load switch's internal FET drain-source terminals during EOS events. Use Value: Keeps clamping voltage below the load switch's absolute maximum VDS, preventing catastrophic failure while enabling smaller, lower-cost switch selection. |
| Industrial I/O Line Protection | IoT Device Power Bus Protection |
|
Use Scenario: Safeguarding 24VDC control inputs in programmable logic controllers (PLCs) and factory automation sensors exposed to field wiring transients. IC Role / Device Role / Timing Role: Standalone surge protector on unregulated 22–24V supply rails feeding microcontrollers or analog front-ends. Use Value: Delivers 1120W peak pulse power handling (8/20μs) in 1.6mm² footprint - replaces bulkier discrete TVS arrays without sacrificing performance. |
Use Scenario: Securing the main power rail of battery-powered edge nodes (e.g., smart sensors, asset trackers) operating in electrically noisy environments. IC Role / Device Role / Timing Role: Low-leakage, high-reliability suppressor on the input of buck converters or PMICs powering SoCs and radios. Use Value: 130–600nA leakage at 22V preserves battery life; ±30kV ESD rating eliminates need for secondary ESD staging in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Identical electrical specs, same DFN-6 package, identical marking code "T22" - direct Semtech-manufactured variant with tape-and-reel packaging (3,000 pcs/reel). | No functional difference; used interchangeably in production where reel quantity and traceability match BOM requirements. | Select TDS2211P.C when sourcing from authorized Semtech distributors with full lot traceability and standard reel logistics. |
| uClamp2411ZA | 24V working voltage, ±30kV ESD, but rated only for 12A (8/20μs); higher clamping (~33V at 12A); 0.25pF capacitance optimized for data lines. | Designed for CC/SBU lines in USB-C, not VBUS; insufficient peak current for load switch or industrial 22V rail protection. | Use uClamp2411ZA only for low-capacitance, low-current auxiliary lines - not a functional replacement for SC3BH2F in power rail roles. |
Compared with TDS2211P.C, SC3BH2F shares identical performance and form factor but may differ in packaging or traceability metadata; compared with uClamp2411ZA, SC3BH2F delivers 3.3× higher surge current and 5V lower clamping - making it the sole suitable choice for 22V power-line EOS protection.
Availability
SC3BH2F is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT device power bus protection requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/REACH compliance.
Supply support for SC3BH2F 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, sensing, and connectivity.
SC3BH2F belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy, high-temperature, and high-reliability power-line protection applications.
FAQ
What is the maximum continuous operating voltage for SC3BH2F?
The SC3BH2F has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously block up to 22V DC without significant leakage. This makes SC3BH2F suitable for protecting 20–22V power rails such as USB PD VBUS and industrial 24V nominal systems operating within tolerance. Exceeding 22V risks premature conduction and accelerated wear.
Does SC3BH2F require a thermal pad on the PCB?
No, SC3BH2F does not require a thermal pad. Its DFN-6 package dissipates surge energy primarily through conduction via pins 1–3 (GND) and 4–6 (IN), and the datasheet explicitly states "no thermal pad is needed." Layout best practice emphasizes low-inductance grounding using multiple vias and short, wide traces - not copper pour under the body.
How does SC3BH2F 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) - SC3BH2F uses a triggered FET shunt that maintains near-constant clamping (27.5–28V) from 24A to 40A. This eliminates current-dependent voltage overshoot and removes thermal derating concerns across −40°C to +125°C.
Can SC3BH2F be used to protect high-speed data lines like USB SuperSpeed?
No, SC3BH2F is not suitable for USB SuperSpeed (TX/RX) or other high-speed differential data lines. With 175pF junction capacitance, it would severely degrade signal integrity. SC3BH2F is intended exclusively for power or low-speed I/O lines (e.g., VBUS, CC, SBU, enable signals). For data lines, Semtech recommends RClamp3371ZC (<0.25pF).
What is the recommended PCB layout for optimal SC3BH2F surge performance?
Place SC3BH2F as close as possible to the protected connector. Connect all GND pins (1, 2, 3) to a solid ground plane using ≥3 vias; connect all IN pins (4, 5, 6) in parallel with a single short, wide trace. Avoid stubs or splits - parasitic inductance directly degrades 40A surge response. Refer to Semtech's Figure 7 layout guide for land pattern and via placement.
SC3BH2F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 4-Rectangle
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Diode Type:
- Three Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 200 V
- Current - Average Rectified (Io):
- 3 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 3 A
- Current - Reverse Leakage @ Vr:
- 3 µA @ 200 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- QC Terminal
- Supplier Device Package:
- -
SC3BH2F FAQ
1.How can I place an order for SC3BH2F through Aetrix?
Please submit a Request for Quotation (RFQ) for SC3BH2F 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 SC3BH2F reliable?
The price and inventory of SC3BH2F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC3BH2F is usually 5 days.
3.What payment methods are accepted for SC3BH2F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC3BH2F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC3BH2F?
SC3BH2F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC3BH2F 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 SC3BH2F?
For technical support, including SC3BH2F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC3BH2F requirements.
6.How does Aetrix verify that SC3BH2F is sourced from the original manufacturer or authorized distributors?
All SC3BH2F 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 SC3BH2F meets industry standards.
7.What is the process for return or replacement of SC3BH2F?
All SC3BH2F units undergo pre-shipment inspection (PSI). If there is an issue with SC3BH2F, 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 SC3BH2F part is unused and in its original packaging.
Return procedure for SC3BH2F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SC3BH2F Tags
-
HDS10M-13
Diodes Incorporated
-
CD-MBL106S
Bourns Inc.
-
MB10S-13
Diodes Incorporated
-
CD-MBL206SL
Bourns Inc.
-
MB4S-TP
Micro Commercial Co
-
MB6S-TP
Micro Commercial Co
-
CD-MBL210S
Bourns Inc.
-
BAS3007ARPPE6327HTSA1
Infineon Technologies
-
DF02M
Diodes Incorporated
-
CD-MBL210SL
Bourns Inc.
-
DF04M
Diodes Incorporated
-
DF01M
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 …
