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Vishay General Semiconductor - Diodes Division SMBJ5.0CHE3/52
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- Part No.:
- SMBJ5.0CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0CHE3/52.pdf
- Description:
- TVS DIODE 5VWM 9.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,674
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Product details
Overview
SMBJ5.0CHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. It features 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤9.2 V at 65.2 A peak surge current - deployed for IC-level protection in automotive infotainment power rails.
For engineers reviewing the SMBJ5.0CHE3/52 datasheet, SMBJ5.0CHE3/52 pinout, SMBJ5.0CHE3/52 application, or SMBJ5.0CHE3/52 equivalent, key selection criteria include its AEC-Q101 qualification, unidirectional polarity with cathode band marking, low clamping ratio (VC/VBR ≈ 1.33), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping overvoltage protection device, leveraging an avalanche breakdown mechanism to divert transient energy away from downstream circuitry. Its response time is sub-nanosecond, and it exhibits low incremental surge resistance (typical <0.1 Ω) to minimize voltage overshoot during high-di/dt events.
The SMBJ5.0CHE3/52 is rated for repetitive 0.01% duty cycle surges and derates linearly above 25 °C ambient per Fig. 2 of the datasheet. Junction-to-lead thermal resistance is 20 °C/W, enabling effective heat dissipation into PCB copper when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before leakage exceeds 800 µA; sets upper limit for normal circuit operation. |
| VBR min/max | 6.40 V / 7.07 V at 10 mA - Confirmed breakdown range ensures reliable triggering without premature conduction under nominal bias. |
| IPPM | 65.2 A (10/1000 µs) - Peak surge current capability defines maximum transient energy it can safely shunt without failure. |
| VC | ≤9.2 V at IPPM - Clamping voltage directly limits stress on protected ICs; critical for 5 V logic and microcontroller I/O survival. |
| PPPM | 600 W - Peak pulse power rating determines survivability against lightning-induced or inductive-switching transients. |
| TJ max | +150 °C - Maximum junction temperature enables use in under-hood automotive environments with minimal derating. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" length, compatible with JEDEC MS-012AC and automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, MSL Level 1 (260 °C reflow peak), RoHS-compliant and AEC-Q101 qualified. Cathode indicated by black band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during positive transients on cathode side. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 5 V rail); avalanche conduction initiates here when VAK ≥ VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power supplies, with extended temperature cycling and humidity testing. |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 (4 kV) surge events on 5 V systems without degradation when properly heatsinked. |
| Clamping voltage ≤9.2 V at 65.2 A | Ensures protected 5 V ICs experience less than 84% overvoltage margin, meeting ISO 7637-2 Pulse 1/2b immunity requirements. |
| Glass passivated junction | Provides stable leakage performance (<800 µA at VWM) and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking, reducing manufacturing cost and handling complexity for high-volume automotive production. |
Applications
| Automotive Power Rail Protection | USB VBUS Line Protection |
|---|---|
|
Use Scenario: Protecting 5 V power distribution networks in vehicle infotainment head units from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between fused 5 V supply and downstream PMIC inputs. Use Value: Limits transient excursions to ≤9.2 V during ISO 7637-2 Pulse 5a (load dump), preventing latch-up or gate oxide damage in 5 V regulators. |
Use Scenario: Safeguarding USB 2.0 host controller VBUS pins against ESD and hot-plug induced surges. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on VBUS line upstream of USB switch or port controller. Use Value: Sub-ns response clamps ±15 kV contact ESD (IEC 61000-4-2) to <9.2 V, preserving USB PHY integrity without signal distortion. |
| Industrial Sensor Signal Conditioning | DC-DC Converter Input Stage |
|
Use Scenario: Shielding analog sensor supply lines (e.g., 5 V for pressure transducers) from switching noise in PLC backplanes. IC Role / Device Role / Timing Role: Localized TVS on sensor VDD rail adjacent to connector entry point. Use Value: Low clamping ratio (1.33×VBR) prevents sensor output saturation during 1 kV ring wave transients (IEC 61000-4-12). |
Use Scenario: Input-side surge suppression for 5 V buck converters powering FPGA I/O banks in telecom baseband modules. IC Role / Device Role / Timing Role: First-line defense against conducted transients entering via DC input connector. Use Value: 600 W rating handles repeated 10/1000 µs surges up to 65.2 A, maintaining converter uptime during field-deployed power grid fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0AHE3/52 | Same electrical specs and AEC-Q101 qualification, but lacks HE3 automotive suffix documentation traceability in ordering code. | No functional difference; used in non-audit-traceable commercial automotive programs. | Select SMBJ5.0CHE3/52 when full AEC-Q101 compliance documentation and lot-level traceability are contractually required. |
| SMAJ5.0AHE3/52 | Lower 400 W PPPM, higher VC (12.5 V), SMA package (smaller footprint, lower thermal mass). | Suitable only for lower-energy transients; not recommended for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4. | Choose SMAJ5.0AHE3/52 only if board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only. |
Compared with SMBJ5.0AHE3/52, SMBJ5.0CHE3/52 provides auditable AEC-Q101 certification for safety-critical automotive use; versus SMAJ5.0AHE3/52, it delivers 50% higher surge power handling and 26% lower clamping voltage - essential for robust 5 V system protection in harsh environments.
Availability
SMBJ5.0CHE3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and USB power delivery systems requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for SMBJ5.0CHE3/52 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The SMBJ series is engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - prioritizing low clamping voltage, AEC-Q101 compliance, and repeatable surge endurance.
FAQ
What is the meaning of the "HE3" suffix in SMBJ5.0CHE3/52?
The "HE3" suffix in SMBJ5.0CHE3/52 denotes RoHS-compliant construction with full AEC-Q101 qualification and traceable automotive-grade manufacturing. It distinguishes this variant from commercial-grade "E3" versions and confirms compliance with JESD201 Class 2 whisker resistance, LF peak reflow at 260 °C, and extended temperature cycling validation - all documented per Vishay's automotive product release process. SMBJ5.0CHE3/52 meets these requirements explicitly.
Does SMBJ5.0CHE3/52 support bidirectional transient suppression?
No, SMBJ5.0CHE3/52 is strictly unidirectional. Its cathode band marks the high-side terminal, and it conducts only when anode-to-cathode voltage exceeds VBR. For bidirectional protection, Vishay specifies part numbers with "CA" suffix (e.g., SMBJ5.0CA). The SMBJ5.0CHE3/52 datasheet confirms unidirectional polarity in both the primary characteristics table and mechanical diagrams - no bidirectional capability is specified or validated for SMBJ5.0CHE3/52.
What is the maximum allowable printed circuit board pad size for SMBJ5.0CHE3/52 to achieve rated 600 W peak pulse power?
To achieve the full 600 W peak pulse power rating, SMBJ5.0CHE3/52 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in Figure 1 and Note (2) of the datasheet. Smaller pads reduce thermal dissipation and cause premature thermal runaway during surge events. The SMBJ5.0CHE3/52 specification assumes this pad layout for all published PPPM and IPPM values.
How does the clamping voltage of SMBJ5.0CHE3/52 compare to its breakdown voltage?
The clamping voltage (VC = 9.2 V at 65.2 A) of SMBJ5.0CHE3/52 is approximately 1.33× its minimum breakdown voltage (VBR = 6.40 V), yielding a clamping ratio of 1.33 - a key metric indicating low voltage overshoot during surge conduction. This ratio is confirmed in the Electrical Characteristics table and ensures protected 5 V circuits remain within safe operating margins. SMBJ5.0CHE3/52 maintains this ratio across its qualified operating temperature range.
Is SMBJ5.0CHE3/52 compatible with lead-free reflow soldering processes?
Yes, SMBJ5.0CHE3/52 is fully compatible with lead-free reflow soldering. It meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C, and its matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards. The "HE3" suffix confirms RoHS compliance and qualification for standard Pb-free assembly - verified in the Mechanical Data section of the SMBJ5.0CHE3/52 datasheet.
SMBJ5.0CHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 62.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ5.0CHE3/52 FAQ
1.How can I place an order for SMBJ5.0CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0CHE3/52 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 SMBJ5.0CHE3/52 reliable?
The price and inventory of SMBJ5.0CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5.0CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ5.0CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0CHE3/52?
SMBJ5.0CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0CHE3/52 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 SMBJ5.0CHE3/52?
For technical support, including SMBJ5.0CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0CHE3/52 requirements.
6.How does Aetrix verify that SMBJ5.0CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0CHE3/52 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 SMBJ5.0CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ5.0CHE3/52?
All SMBJ5.0CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0CHE3/52, 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 SMBJ5.0CHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ5.0CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0CHE3/52 Tags
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