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Vishay General Semiconductor - Diodes Division SMB10J9.0HE3/52
- Part No.:
- SMB10J9.0HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J9.0HE3/52.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,225
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Product details
Overview
SMB10J9.0HE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage at 10 A peak pulse current, and 1000 W peak pulse power rating with 10/1000 µs waveform. It is AEC-Q101 qualified and used in automotive power supply input stages to protect downstream MOSFETs and microcontrollers from load dump and inductive switching transients.
For engineers reviewing the SMB10J9.0HE3/52 datasheet, SMB10J9.0HE3/52 pinout, SMB10J9.0HE3/52 application, or SMB10J9.0HE3/52 equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, unidirectional polarity requirement for DC-biased lines, AEC-Q101 qualification for automotive use, and thermal resistance (RθJA = 72 °C/W) under PCB pad constraints.
Technical Context
This TVS diode operates as a shunt-clamping device: under normal conditions it presents high impedance (>1 MΩ leakage at 9.0 V), but triggers into low-impedance conduction when reverse voltage exceeds its 10.0–11.1 V breakdown range (VBR at 1 mA). Its glass-passivated junction ensures stable avalanche characteristics and fast response (<1 ns).
It is rated for 100 A non-repetitive forward surge current (IFSM) and 10 A peak pulse current (IPPM) under 10/1000 µs waveform, with thermal performance defined by RθJL = 20 °C/W (junction-to-lead) and RθJA = 72 °C/W (junction-to-ambient on 5.0 mm × 5.0 mm copper pads).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before leakage exceeds 1.0 µA; sets upper limit for protected line DC bias. |
| VBR (min/max) | 10.0 V / 11.1 V at IT = 1 mA - Confirmed breakdown threshold range; determines turn-on consistency across production lots. |
| VC @ IPPM | 15.4 V at 10 A - Clamped voltage during 10/1000 µs surge; must stay below protected IC's absolute max rating (e.g., <16 V for 16 V-tolerant inputs). |
| PPPM | 1000 W - Peak pulse power handling capability; defines survivability against ISO 7637-2 Pulse 1/2a/5a transients in automotive applications. |
| IPPM | 10 A - Peak surge current supported at VC = 15.4 V; correlates directly with energy absorption (E ≈ 1.2 J for 10/1000 µs). |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood environments with ambient up to 125 °C and power dissipation derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per stress test plan. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by color band on one end; anode is opposite terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line (e.g., +12 V rail); conducts avalanche current to ground during overvoltage event. |
| Anode | Reference/ground return | Typically tied to system ground plane; completes low-inductance path for surge current discharge. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood deployment with guaranteed lifetime performance under thermal cycling and humidity stress. |
| Glass-passivated junction | Ensures stable, repeatable avalanche breakdown voltage and low parameter drift over temperature and time. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD or lightning-induced surges), improving protection margin. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and EU RoHS Directive 2011/65/EU for lead-free assembly and long-term reliability. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to ISO 7637-2 load dump pulses (up to 60 V, 400 ms) and inductive switch-off spikes. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between power rail and chassis ground to clamp transients before they reach LDOs and MCU power pins. Use Value: Limits rail voltage to ≤15.4 V during 10 A surge, preventing latch-up or oxide breakdown in 16 V-rated power management ICs. |
Use Scenario: Analog sensor outputs (e.g., pressure or temperature sensors) routed through noisy industrial enclosures with motor drives nearby. IC Role / Device Role / Timing Role: Bidirectional protection is not required; unidirectional SMB10J9.0HE3/52 guards 0–5 V signal lines referenced to local ground. Use Value: Clamps induced surges to <15.4 V while maintaining <1 µA leakage at 5 V, preserving signal integrity and ADC accuracy. |
| Consumer USB Port ESD Suppression | Telecom DC Power Feed Protection |
Use Scenario: USB VBUS line in portable docking stations subjected to IEC 61000-4-2 ±8 kV contact discharge. IC Role / Device Role / Timing Role: Primary front-end TVS on 5 V supply line upstream of USB controller and power switch. Use Value: Responds in <1 ns to divert >8 kV ESD events, limiting voltage seen by USB PHY to safe levels without affecting 480 Mbps data timing. |
Use Scenario: -48 V telecom power feed entering remote radio units, vulnerable to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Used in conjunction with GDTs and series impedance to clamp differential-mode surges on the DC pair. Use Value: Absorbs up to 1000 W of surge energy while holding clamping voltage within safe margin of -48 V system's 60 V abs max rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A-E3/52 | Same DO-214AA package and 9.0 V VWM, but rated for 600 W PPPM (vs. 1000 W) and 6.4 A IPPM. | Lower energy handling; suitable for consumer-grade or non-automotive applications with milder surge profiles (e.g., IEC 61000-4-5 Level 3). | Select when cost optimization is prioritized and full 1000 W capability is not required. |
| SMCJ9.0AHE3/52 | Same VWM and AEC-Q101 qualification, but in larger DO-214AB (SMC) package with 1500 W PPPM and 128 A IPPM. | Higher surge capacity and lower RθJA (40 °C/W); requires more PCB area but supports longer-duration transients (e.g., ISO 16750-2). | Choose when system-level surge testing exceeds ISO 7637-2 Pulse 5a or when thermal margin is constrained. |
Compared with SMBJ9.0A-E3/52, SMB10J9.0HE3/52 delivers 67% higher peak power handling for same footprint; versus SMCJ9.0AHE3/52, it trades 50% lower surge rating for 40% smaller board area and identical AEC-Q101 compliance-making it optimal for space-constrained automotive modules.
Availability
SMB10J9.0HE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feed circuits requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMB10J9.0HE3/52 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, and protection devices with emphasis on reliability, power density, and automotive qualification.
The SMB10Jx series targets high-energy transient suppression in space-constrained automotive and industrial systems, balancing 1000 W surge capability with DO-214AA footprint and AEC-Q101 validation.
FAQ
What is the clamping voltage of SMB10J9.0HE3/52 at its rated peak pulse current?
The SMB10J9.0HE3/52 has a maximum clamping voltage (VC) of 15.4 V at 10 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured and guaranteed per Vishay's datasheet (Document Number 88422, page 2), and defines the upper voltage limit imposed on protected circuitry during surge events. Maintaining VC below the absolute maximum rating of downstream components is critical for reliable protection.
Is SMB10J9.0HE3/52 suitable for bidirectional signal line protection?
No, SMB10J9.0HE3/52 is a unidirectional TVS diode, intended for DC-biased lines where reverse polarity is fixed (e.g., +12 V power rails). For bidirectional signal lines like RS-485 or USB D+/D−, a bi-directional variant such as SMB8J9.0CAHE3/52 would be required. The SMB10J9.0HE3/52 cathode marking and electrical specifications confirm its unidirectional construction and asymmetric breakdown behavior.
Does SMB10J9.0HE3/52 meet automotive qualification standards?
Yes, SMB10J9.0HE3/52 is explicitly AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's datasheet (88422, page 1). This qualification covers stress tests including high-temperature operating life, temperature cycling, unbiased highly accelerated stress test (UHAST), and ESD (HBM ≥ 8 kV). It is approved for use in automotive powertrain, body, and infotainment modules.
What is the thermal resistance of SMB10J9.0HE3/52, and how does it affect layout?
SMB10J9.0HE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the datasheet (page 4). To maintain safe junction temperatures under repeated surges, PCB layout must provide adequate copper area and thermal vias-reducing pad size or omitting thermal relief will raise RθJA and risk thermal runaway during high-duty-cycle transients.
How does the HE3 suffix differ from E3 in Vishay's SMB10J9.0 part numbering?
The "HE3" suffix in SMB10J9.0HE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas "E3" (e.g., SMB10J9.0A-E3/52) indicates RoHS compliance only, without automotive qualification. Both meet UL 94 V-0 and J-STD-020 MSL Level 1, but HE3 is mandatory for automotive production, while E3 suffices for commercial applications where qualification is not required.
SMB10J9.0HE3/52 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 59.2A
- Power - Peak Pulse:
- 1000W (1kW)
- 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 (SMB)
SMB10J9.0HE3/52 FAQ
1.How can I place an order for SMB10J9.0HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J9.0HE3/52 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 SMB10J9.0HE3/52 reliable?
The price and inventory of SMB10J9.0HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J9.0HE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J9.0HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J9.0HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J9.0HE3/52?
SMB10J9.0HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J9.0HE3/52 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 SMB10J9.0HE3/52?
For technical support, including SMB10J9.0HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J9.0HE3/52 requirements.
6.How does Aetrix verify that SMB10J9.0HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J9.0HE3/52 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 SMB10J9.0HE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J9.0HE3/52?
All SMB10J9.0HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J9.0HE3/52, 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 SMB10J9.0HE3/52 part is unused and in its original packaging.
Return procedure for SMB10J9.0HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J9.0HE3/52 Tags
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