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Vishay General Semiconductor - Diodes Division SMBJ10CHE3/52
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- Part No.:
- SMBJ10CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10CHE3/52.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,539
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Product details
Overview
SMBJ10CHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform-used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ10CHE3/52 datasheet, SMBJ10CHE3/52 pinout, SMBJ10CHE3/52 application, or SMBJ10CHE3/52 equivalent, key selection criteria include clamping voltage margin vs. protected device's absolute maximum rating, thermal derating above 25 °C, unidirectional polarity marking (cathode band), and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<5.0 µA at VWM), while the low incremental surge resistance enables rapid energy absorption during ESD or inductive switching events.
The SMBJ10CHE3/52 is rated for 150 °C maximum junction temperature and exhibits 0.078 %/°C VBR temperature coefficient. It meets MSL Level 1 per J-STD-020, supports 260 °C lead-free reflow, and delivers 100 A non-repetitive forward surge capability (IFSM) - critical for sustaining load-dump transients in 12 V automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below protected circuit's max rating. |
| VBR min/max | 11.1 V / 12.3 V at IT = 1 mA - tight breakdown window ensures predictable turn-on without premature conduction. |
| VC @ IPPM | 17.0 V at 35.3 A - clamping voltage under 10/1000 µs surge; determines worst-case overvoltage seen by downstream ICs. |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform; defines transient energy absorption capacity per event. |
| ID @ VWM | ≤5.0 µA - reverse leakage at stand-off voltage; ensures minimal standby power loss and signal integrity in high-impedance nodes. |
| TJ max | 150 °C - maximum junction temperature; sets thermal design limits for PCB copper pad area and ambient derating. |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by black band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; must be tied to ground or return path for proper clamping action. |
| Cathode | Reverse-biased avalanche terminal | Marked with band; connected to higher-potential line (e.g., 12 V rail); conducts when transient exceeds VBR to shunt surge to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against ISO 7637-2 Load Dump and IEC 61000-4-5 surge events without thermal runaway. |
| AEC-Q101 qualified | Validated for automotive under-hood and infotainment applications requiring extended temperature cycling and humidity exposure. |
| Glass passivated chip junction | Ensures long-term parameter stability and low leakage drift across 15-year service life in industrial environments. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning; eliminates moisture-related popcorning during assembly. |
| Low clamping ratio (VC/VBR ≈ 1.53) | Minimizes overvoltage overshoot during fast transients, preserving margin for 15 V-rated gate drivers and microcontrollers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load dump transients on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges up to 35 V. Use Value: Limits peak voltage to ≤17.0 V during 35.3 A surge, preventing damage to 24 V-tolerant PMICs and CAN transceivers. |
Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Clamping ESD strikes (IEC 61000-4-2 ±8 kV contact) on 0–5 V sensor signal lines. Use Value: Sub-µA leakage at 10 V stand-off preserves signal accuracy; 17.0 V clamping prevents ADC input saturation. |
| DC-DC Converter Input Protection | Motor Drive Gate Driver Protection |
|
Use Scenario: Safeguarding buck converter inputs against inductive kickback from relay coils or solenoids. IC Role / Device Role / Timing Role: Mounted directly at DC-DC controller VIN pin to absorb 10/1000 µs switching transients. Use Value: 600 W rating handles repetitive 100 ms pulses at 0.01% duty cycle; 100 °C/W RθJA allows thermal design with 5 mm² copper pads. |
Use Scenario: Shielding high-side N-channel MOSFET gate drivers from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Placed between gate driver output and MOSFET gate to clamp dv/dt-induced overshoot. Use Value: Fast response time (<1 ns) and low VC ensure gate voltage stays within ±20 V absolute max rating of logic-level MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10AHE3/52 | No AEC-Q101 qualification; identical electrical specs and packaging. | Restricted to commercial/industrial use; not approved for automotive production. | Select SMBJ10AHE3/52 only if automotive qualification is unnecessary and cost optimization is prioritized. |
| SMAJ10AHE3/A | Lower PPPM (400 W), larger VBR tolerance (11.1–13.4 V), SMA package (DO-214AC). | Reduced surge margin; less suitable for ISO 7637-2 compliance; smaller footprint but higher thermal resistance. | Choose SMAJ10AHE3/A only when board space is constrained and peak surge energy remains below 400 W. |
Compared with SMBJ10AHE3/52, the SMBJ10CHE3/52 adds AEC-Q101 validation for automotive deployment, while versus SMAJ10AHE3/A it provides 50% higher surge power handling and tighter VBR control-critical for protecting sensitive gate drivers and automotive ECUs.
Availability
SMBJ10CHE3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and DC-DC converter input surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMBJ10CHE3/52 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SMBJ series targets high-energy transient suppression in harsh environments, engineered specifically for automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising signal integrity or thermal performance.
FAQ
What is the clamping voltage of SMBJ10CHE3/52 under a 10/1000 µs surge?
The SMBJ10CHE3/52 has a maximum clamping voltage (VC) of 17.0 V at 35.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuits during transient events. The SMBJ10CHE3/52 maintains this clamping performance across its specified operating temperature range when mounted per recommended pad layout.
Is SMBJ10CHE3/52 qualified for automotive applications?
Yes, SMBJ10CHE3/52 is AEC-Q101 qualified, meaning it has passed rigorous stress tests including high-temperature reverse bias, high-temperature operating life, and temperature cycling-required for automotive under-hood and cabin electronics. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, distinguishing it from commercial-grade variants like SMBJ10AHE3/52.
What does the "HE3" suffix mean in SMBJ10CHE3/52?
The "HE3" suffix in SMBJ10CHE3/52 indicates RoHS-compliant construction with AEC-Q101 qualification. It replaces the base "A" designation (e.g., SMBJ10A) to denote automotive-grade reliability, while "E3" confirms lead-free matte tin plating and compliance with JEDEC JESD201 Class 2 whisker resistance. The "/52" denotes 7″ tape-and-reel packaging with 750 units per reel.
How does SMBJ10CHE3/52 differ from bidirectional SMBJ10CHE3/52 variants?
SMBJ10CHE3/52 is unidirectional, featuring a cathode band for polarity-sensitive placement; bidirectional equivalents (e.g., SMBJ10CHE3/52CA) lack marking and conduct in both directions. The unidirectional SMBJ10CHE3/52 offers lower leakage (<5.0 µA) and higher IFSM (100 A), making it preferred for DC power rail protection, whereas bidirectional versions suit AC-coupled signal lines where polarity reversal occurs.
What is the thermal resistance of SMBJ10CHE3/52, and how does it affect layout?
SMBJ10CHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2″ × 0.2″ (5.0 mm × 5.0 mm) copper pads per terminal. This value requires careful PCB layout: reducing pad size or omitting thermal vias increases junction temperature, potentially derating peak power handling. For sustained surge duty, designers must apply fig. 2 derating curves from the datasheet to maintain TJ ≤ 150 °C.
SMBJ10CHE3/52 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 31.9A
- 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)
SMBJ10CHE3/52 FAQ
1.How can I place an order for SMBJ10CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10CHE3/52 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 SMBJ10CHE3/52 reliable?
The price and inventory of SMBJ10CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ10CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10CHE3/52?
SMBJ10CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10CHE3/52 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 SMBJ10CHE3/52?
For technical support, including SMBJ10CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10CHE3/52 requirements.
6.How does Aetrix verify that SMBJ10CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ10CHE3/52 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 SMBJ10CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ10CHE3/52?
All SMBJ10CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10CHE3/52, 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 SMBJ10CHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ10CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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