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Vishay General Semiconductor - Diodes Division SMBJ9.0C-E3/52
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- Part No.:
- SMBJ9.0C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ9.0C-E3/52.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,675
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Product details
Overview
SMBJ9.0C-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1 mA, 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial sensor interfaces and automotive ECUs.
For engineers reviewing the SMBJ9.0C-E3/52 datasheet, SMBJ9.0C-E3/52 pinout, SMBJ9.0C-E3/52 application, or SMBJ9.0C-E3/52 equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, and precise mechanical footprint data aligned to J-STD-002 solderability standards.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its 100 °C/W junction-to-ambient thermal resistance (RθJA) and 20 °C/W junction-to-lead (RθJL) support reliable operation up to +150 °C junction temperature under pulsed stress.
The device complies with ANSI/IEEE C62.35 surge immunity standards and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Polarity is marked by cathode band; it is RoHS-compliant (E3 suffix), commercial-grade, and rated for 100 A non-repetitive forward surge (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 9.0 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 10.0–11.1 V at 1 mA - Guaranteed avalanche initiation range; ensures predictable clamping onset across production lot. |
| VC (Clamping Voltage) | 15.4 V at 39.0 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream IC survivability. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized transient waveform; enables single-device protection for IEC 61000-4-5 Level 3 surges. |
| IPPM (Peak Pulse Current) | 39.0 A - Maximum surge current handled at rated clamping voltage; directly correlates with PCB trace width and layout robustness. |
| TJmax | +150 °C - Absolute maximum junction temperature; sets thermal design limits for high-ambient or high-duty-cycle applications. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMB (DO-214AA), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102; cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or return path; forms current loop during reverse-biased clamping event. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 9 V rail); conducts avalanche current when VIN exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 surge events without external series impedance. |
| 15.4 V clamping at 39 A | Keeps downstream 12 V logic or analog circuits within absolute maximum ratings during 1 kV/500 A surge coupling. |
| MSL Level 1, 260 °C reflow peak | Supports standard lead-free assembly without moisture sensitivity concerns or baking requirements. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<10 µA at VWM) over temperature and lifetime. |
| RoHS-compliant, commercial grade (E3) | Meets global environmental compliance mandates while maintaining cost-effective sourcing for industrial volume production. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 9 V supply rail and analog output lines of pressure/temperature sensors exposed to load-dump transients and ESD in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor VDD and GND, absorbing inductive kickback from solenoid drivers. Use Value: Limits rail excursion to ≤15.4 V during 39 A surge, preventing latch-up or permanent damage to 12 V-tolerant op-amps and ADCs. |
Use Scenario: Safeguarding LIN bus transceiver power pins and microcontroller I/O lines in BCMs subjected to ISO 7637-2 Pulse 1/2a/5a. IC Role / Device Role / Timing Role: Primary front-end surge suppressor on 9 V auxiliary rail feeding LIN PHY and MCU core logic. Use Value: Clamps 10/1000 µs transients to 15.4 V within <1 ns, preserving communication integrity and avoiding reset events during vehicle cranking. |
| Consumer Power Adapter Output | Telecom PoE Midspan Protection |
|
Use Scenario: Secondary-side overvoltage suppression on 9 V DC output of wall adapters powering IoT gateways and smart home hubs. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after DC-DC converter output filter to absorb capacitor discharge spikes and lightning-induced surges. Use Value: Withstands 600 W pulses without degradation, ensuring long-term reliability under repeated 1 kV ring-wave stress per IEC 61000-4-5. |
Use Scenario: DC bias rail protection in IEEE 802.3af/at midspan injectors where 9 V auxiliary supplies power management ICs. IC Role / Device Role / Timing Role: Unidirectional clamp on isolated 9 V bias rail feeding hot-swap controllers and sense amplifiers. Use Value: Maintains 9.0 V nominal operation while limiting fault voltage to 15.4 V - critical for preventing MOSFET gate oxide rupture in PoE detection circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A-E3/52 | Unidirectional variant with identical VWM, VBR, and VC; same SMB package and thermal specs. | No functional difference - SMBJ9.0C-E3/52 and SMBJ9.0A-E3/52 are identical in electrical performance and marking; "C" vs "A" reflects legacy Vishay internal coding, not specification divergence. | Select SMBJ9.0C-E3/52 when matching existing BOMs referencing "C" suffix; both are electrically interchangeable. |
| SMCJ9.0A-E3/52 | Same VWM/VBR but higher PPPM (1500 W), larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), and 30% higher IPPM (87 A). | Used where higher surge margin is required (e.g., outdoor telecom enclosures), but requires PCB redesign due to larger footprint and thermal pad area. | Choose SMCJ9.0A-E3/52 only if system-level testing confirms need for >600 W clamping; otherwise SMBJ9.0C-E3/52 offers optimal size–performance balance. |
Compared with SMBJ9.0C-E3/52, SMBJ9.0A-E3/52 provides no electrical distinction and serves as a direct form-fit-function match, whereas SMCJ9.0A-E3/52 trades compact SMB packaging for 2.5× higher surge capacity - requiring layout revision but enabling harsher environment qualification.
Availability
SMBJ9.0C-E3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and consumer power adapter outputs requiring stable component supply, consistent RoHS compliance, and full traceability from Vishay's authorized distribution chain.
Supply support for SMBJ9.0C-E3/52 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 application-specific optimization.
The SMBJ series was engineered for surface-mount transient suppression in space-constrained, high-reliability DC power and signal line applications - balancing clamping performance, thermal robustness, and automated manufacturing compatibility.
FAQ
What is the clamping voltage of SMBJ9.0C-E3/52 at its rated peak pulse current?
The SMBJ9.0C-E3/52 has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current of 39.0 A using the standard 10/1000 µs waveform. This value is measured under defined test conditions per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for protected circuits downstream of SMBJ9.0C-E3/52.
Is SMBJ9.0C-E3/52 unidirectional or bidirectional, and how is polarity identified?
SMBJ9.0C-E3/52 is a unidirectional TVS diode, meaning it clamps only in reverse bias and conducts forward current like a standard diode. Polarity is marked by a cathode band on the SMB package body; the banded end is the cathode and must be connected toward the protected line, while the anode connects to ground or return path in the SMBJ9.0C-E3/52 circuit layout.
Does SMBJ9.0C-E3/52 meet automotive qualification standards such as AEC-Q101?
No, SMBJ9.0C-E3/52 is a commercial-grade part with E3 suffix (RoHS-compliant, non-automotive). For AEC-Q101 qualification, Vishay offers the SMBJ9.0AHE3 variant (with HE3 suffix), which shares identical electrical specs but undergoes additional stress testing per automotive reliability standards. SMBJ9.0C-E3/52 itself is not AEC-Q101 qualified.
What is the thermal resistance and maximum junction temperature rating for SMBJ9.0C-E3/52?
SMBJ9.0C-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and a junction-to-lead resistance (RθJL) of 20 °C/W, measured on 0.2" × 0.2" copper pads. Its maximum operating junction temperature is +150 °C, allowing reliable use in industrial environments up to +85 °C ambient with appropriate board-level thermal design for SMBJ9.0C-E3/52.
How does SMBJ9.0C-E3/52 compare to SMAJ9.0A in terms of surge handling capability?
SMBJ9.0C-E3/52 delivers 600 W peak pulse power (10/1000 µs), while SMAJ9.0A is rated for only 400 W in the smaller SMA package. The SMB outline provides superior thermal dissipation and higher IPPM (39.0 A vs. 26.1 A), making SMBJ9.0C-E3/52 more suitable for applications demanding greater surge margin without increasing board area beyond SMAJ9.0A's footprint limitations.
SMBJ9.0C-E3/52 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 35.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ9.0C-E3/52 FAQ
1.How can I place an order for SMBJ9.0C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ9.0C-E3/52 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 SMBJ9.0C-E3/52 reliable?
The price and inventory of SMBJ9.0C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ9.0C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ9.0C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ9.0C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ9.0C-E3/52?
SMBJ9.0C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ9.0C-E3/52 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 SMBJ9.0C-E3/52?
For technical support, including SMBJ9.0C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ9.0C-E3/52 requirements.
6.How does Aetrix verify that SMBJ9.0C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ9.0C-E3/52 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 SMBJ9.0C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ9.0C-E3/52?
All SMBJ9.0C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ9.0C-E3/52, 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 SMBJ9.0C-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ9.0C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ9.0C-E3/52 Tags
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