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Vishay General Semiconductor - Diodes Division SMBJ9.0C-E3/5B
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- Part No.:
- SMBJ9.0C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ9.0C-E3/5B.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,923
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Product details
Overview
SMBJ9.0C-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against ESD, lightning-induced surges, and inductive switching transients. It features a 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines of industrial sensor interfaces and automotive control modules.
For engineers reviewing the SMBJ9.0C-E3/5B datasheet, SMBJ9.0C-E3/5B pinout, SMBJ9.0C-E3/5B application, or SMBJ9.0C-E3/5B equivalent, key selection criteria include clamping performance under 39 A surge, unidirectional polarity with cathode band marking, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads per JEDEC standard.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds 10.0–11.1 V breakdown range (VBR at 1 mA), it rapidly avalanches to limit transient energy across protected circuit nodes. Its low incremental surge resistance and <1 ps response time ensure effective suppression of fast-rising ESD events (IEC 61000-4-2) and repetitive switching spikes.
Thermally, it sustains 150 °C max junction temperature with 100 °C/W junction-to-ambient thermal resistance (RθJA) on standard PCB pads, and handles 100 A non-repetitive forward surge (IFSM, 8.3 ms half-sine) - enabling robust protection in 12 V automotive power domains and industrial I/O circuits without external heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before conduction; sets threshold for protection activation in 9 V nominal systems. |
| VBR (min/max) | 10.0 V / 11.1 V at 1 mA - Confirmed breakdown range ensures reliable triggering above system operating voltage with margin. |
| VC @ IPPM | 15.4 V at 39.0 A - Clamping voltage during 600 W transient defines worst-case overvoltage seen by downstream ICs. |
| IPPM | 39.0 A - Peak surge current capability with 10/1000 µs waveform; validates protection level against IEC 61000-4-5 Level 3 surges. |
| PPPM | 600 W - Peak pulse power rating determines energy absorption capacity for transient events up to 1000 µs duration. |
| TJ max | +150 °C - Maximum junction temperature enables operation in under-hood automotive and high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.220" × 0.155" footprint; compatible with standard reflow profiles and J-STD-020 MSL Level 1. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band at one end. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per Vishay recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential node (e.g., GND or return path); defines polarity for unidirectional clamping. |
| Cathode | Reverse voltage sensing / Surge current sink | Banded end; connected to protected line (e.g., 9 V rail or signal trace); conducts surge current to ground during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 surges up to 1 kV/42 Ω without cascaded stages. |
| 15.4 V clamping voltage at 39 A | Limits transient overvoltage to safe levels for 5 V–12 V logic and analog ICs (e.g., microcontrollers, CAN transceivers). |
| Low incremental surge resistance | Minimizes VC rise under high di/dt events, improving clamping consistency across surge amplitude variations. |
| RoHS-compliant, matte tin plating | Ensures solderability per J-STD-002 and long-term reliability in lead-free reflow processes (peak 260 °C). |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life without dry-packaging or baking, simplifying SMT line logistics and inventory handling. |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting LIN bus interface and 12 V power input from load dump and alternator ripple in vehicle door modules. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and GND, clamping transients before they reach MCU power pins and LIN transceiver. Use Value: Maintains 15.4 V clamping ceiling under 39 A surges, preventing latch-up or damage to 16-bit MCUs rated for 16 V absolute max. |
Use Scenario: Shielding 4–20 mA current loop inputs and RS-485 data lines in factory-floor pressure/temperature transmitters. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional device used on signal returns; cathode tied to shield ground to suppress common-mode surges. Use Value: 10.0–11.1 V VBR range avoids false triggering during normal 24 V supply ripple while clamping ESD to <15.4 V. |
| Consumer Appliance Motor Drive | Telecom Power Supply Input |
Use Scenario: Safeguarding gate drivers and bootstrap circuits in BLDC motor inverters subject to inductive kickback from brushed DC motors. IC Role / Device Role / Timing Role: Mounted across MOSFET source-drain or gate-source nodes to clamp turn-off spikes and prevent avalanche failure. Use Value: 100 A IFSM rating supports repeated commutation surges without degradation; 150 °C TJ max aligns with motor enclosure thermal limits. |
Use Scenario: Front-end transient suppression on 48 V telecom rectifier outputs feeding PoE injectors and baseband processors. IC Role / Device Role / Timing Role: Placed after bulk filter capacitor to absorb residual surges escaping upstream MOV-based protection. Use Value: 600 W PPPM complements upstream 5 kA MOVs by handling faster, lower-energy transients that bypass slower components. |
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-E3/5B | Unidirectional variant with identical VWM, VBR, and VC; same SMB package and RoHS compliance. | No functional difference - SMBJ9.0C-E3/5B and SMBJ9.0A-E3/5B are identical in electrical specs per Vishay documentation; "C" suffix denotes legacy marking convention. | Select SMBJ9.0A-E3/5B if cross-referencing newer Vishay catalogs where "A" suffix is standardized for unidirectional types. |
| SMCJ9.0A-E3/57T | Higher 1500 W PPPM, larger SMC (DO-214AB) package, 10.0–11.1 V VBR, 14.4 V VC at 104 A. | Used where higher surge energy (e.g., IEC 61000-4-5 Level 4) or longer-duration transients require greater power handling. | Choose SMCJ9.0A-E3/57T only when 600 W is insufficient; requires PCB layout change due to larger 0.280" × 0.215" footprint. |
Compared with SMBJ9.0C-E3/5B, SMBJ9.0A-E3/5B offers identical protection performance in the same footprint, while SMCJ9.0A-E3/57T delivers 2.5× higher surge power at the cost of board space and thermal mass - making SMBJ9.0C-E3/5B optimal for space-constrained 9 V rail protection where 600 W suffices.
Availability
SMBJ9.0C-E3/5B is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer appliance motor controls, and telecom power supply inputs requiring stable component supply and full traceability.
Supply support for SMBJ9.0C-E3/5B 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 AEC-Q qualification.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where ESD, lightning, and switching surges threaten system uptime and safety-critical functionality.
FAQ
What is the clamping voltage of SMBJ9.0C-E3/5B at its rated peak pulse current?
The SMBJ9.0C-E3/5B has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 39.0 A using the standard 10/1000 µs waveform. This value is measured under defined test conditions per JEDEC standards and represents the upper voltage limit imposed on protected circuitry during a full-rated transient event. The SMBJ9.0C-E3/5B maintains this clamping performance across its operational temperature range.
Is SMBJ9.0C-E3/5B suitable for bidirectional transient protection?
No, SMBJ9.0C-E3/5B is a unidirectional TVS diode, intended for protection of DC circuits where polarity is fixed - such as 9 V power rails or signal lines referenced to ground. For bidirectional AC or symmetrical signal line protection, Vishay specifies the "CA" suffix (e.g., SMBJ9.0CA). The "C" in SMBJ9.0C-E3/5B reflects an older marking convention for unidirectional devices; it does not indicate bidirectional capability. Always verify polarity configuration before deployment.
What is the meaning of the "-E3/5B" suffix in SMBJ9.0C-E3/5B?
The "-E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting J-STD-002 solderability requirements. The "/5B" denotes packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel - optimized for high-volume automated SMT assembly. This ordering code also confirms compliance with JESD201 Class 2 whisker resistance and MSL Level 1 handling per J-STD-020.
Does SMBJ9.0C-E3/5B meet automotive qualification standards?
The base SMBJ9.0C-E3/5B is commercial-grade and not AEC-Q101 qualified. However, Vishay offers automotive-qualified variants under different ordering codes: SMBJ9.0CHE3_B/I uses the "HE3" suffix and carries AEC-Q101 qualification for automotive applications. Engineers requiring automotive grade must specify the HE3 or HM3 suffix explicitly - SMBJ9.0C-E3/5B itself is rated for industrial and consumer use with -55 °C to +150 °C operating junction temperature.
How does SMBJ9.0C-E3/5B compare to SMAJ9.0A in terms of surge handling?
SMBJ9.0C-E3/5B delivers 600 W peak pulse power (10/1000 µs) versus 400 W for SMAJ9.0A, owing to its larger SMB (DO-214AA) package versus SMA (DO-214AC). Its 39.0 A IPPM exceeds SMAJ9.0A's 26.7 A, and its 15.4 V VC is lower than SMAJ9.0A's 15.6 V - indicating superior clamping efficiency. The SMBJ9.0C-E3/5B also features lower thermal resistance (100 °C/W vs. ~125 °C/W), supporting more sustained surge duty cycles without derating.
SMBJ9.0C-E3/5B 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-E3/5B FAQ
1.How can I place an order for SMBJ9.0C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ9.0C-E3/5B 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-E3/5B reliable?
The price and inventory of SMBJ9.0C-E3/5B 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-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ9.0C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ9.0C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ9.0C-E3/5B?
SMBJ9.0C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ9.0C-E3/5B 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-E3/5B?
For technical support, including SMBJ9.0C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ9.0C-E3/5B requirements.
6.How does Aetrix verify that SMBJ9.0C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ9.0C-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ9.0C-E3/5B?
All SMBJ9.0C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ9.0C-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ9.0C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ9.0C-E3/5B Tags
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