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Vishay General Semiconductor - Diodes Division SMBJ10A-M3/5B
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- Part No.:
- SMBJ10A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10A-M3/5B.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,348
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Product details
Overview
SMBJ10A-M3/5B 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 (10/1000 μs waveform), used for protecting MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ10A-M3/5B datasheet, SMBJ10A-M3/5B pinout, SMBJ10A-M3/5B application, or SMBJ10A-M3/5B equivalent, key selection criteria include unidirectional polarity, 17.0 V clamping performance at rated surge current, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification eligibility via HM3 suffix variants, and halogen-free RoHS compliance per M3 suffix.
Technical Context
This TVS diode operates as a fast-acting shunt protector, responding in <1 ps to transient overvoltages and clamping with low incremental surge resistance. Its glass-passivated junction ensures stable VBR tolerance (±5%) and repeatable clamping behavior under repetitive 10/1000 μs surges at 0.01% duty cycle.
The device is optimized for PCB-level protection of DC power rails and low-voltage signal paths, with cathode-band polarity marking and compatibility with automated SMT placement. Its SMB package provides mechanical robustness while meeting UL 94 V-0 flammability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working range for protected circuit. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown threshold ensuring reliable turn-on during transients without premature conduction. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage seen by downstream components during 600 W surge; determines protection margin for 12 V systems. |
| PPPM | 600 W (10/1000 μs) - Peak energy-handling capability under standardized lightning/surge test waveform. |
| ID @ VWM | 5.0 μA max - Low reverse leakage preserves efficiency in battery-powered or high-impedance signal paths. |
| TJ max. | +150 °C - Enables operation in under-hood automotive or enclosed industrial enclosures without derating. |
| Package | SMB (DO-214AA) - Standardized 2-pin SMT outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height; compatible with IPC-7351B. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity marked by cathode band on one end. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop when transient exceeds VBR. |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V rail or signal trace); band-marked end indicates polarity. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in properly designed layouts with 0.2" × 0.2" copper pads. |
| 17.0 V clamping voltage at 35.3 A | Provides ≥2 V margin below typical 19 V absolute maximum rating of 12 V logic ICs and microcontrollers. |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage across temperature (-55 °C to +150 °C) and humidity exposure. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets EU Directive 2015/863 and IPC-1752A material declarations for environmentally regulated OEM programs. |
| MSL Level 1 (J-STD-020) | Allows unlimited floor life and reflow up to 260 °C peak without baking-reduces manufacturing overhead. |
Applications
| Industrial Motor Drive Control | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protection of gate drivers and MCU I/O against inductive kickback from relay coils and solenoid loads. IC Role / Device Role: Unidirectional shunt clamp placed between 12 V supply rail and ground near sensitive logic inputs. Use Value: Limits transient overshoot to ≤17.0 V during 100 A coil de-energization events, preventing latch-up in 5 V/3.3 V interface ICs. |
Use Scenario: Safeguarding LIN bus transceivers and sensor analog front-ends from load dump and jump-start surges. IC Role / Device Role: Primary TVS on 12 V input rail upstream of LDO regulators and CAN/LIN PHYs. Use Value: Withstands 600 W pulses without degradation, maintaining <5 μA leakage at 10 V to avoid battery drain in sleep mode. |
| Telecom Power Supply Input | Consumer Appliance Mainboard |
Use Scenario: Secondary-side overvoltage suppression on +5 V and +12 V outputs of AC/DC adapters and PoE injectors. IC Role / Device Role: Final-stage transient guard before DC-DC converters and USB port controllers. Use Value: Clamps 10/1000 μs surges to 17.0 V, preserving ±5% output regulation and avoiding false brown-out resets. |
Use Scenario: ESD and surge protection for touch panel interfaces and appliance control buttons exposed to user handling. IC Role / Device Role: Low-capacitance (<100 pF) unidirectional TVS on 3.3 V I²C and GPIO lines. Use Value: Sub-ns response time prevents ESD-induced firmware lockup; M3 suffix ensures compliance with regional eco-regulations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A-E3/5B | Same electrical specs; RoHS-compliant but contains brominated flame retardants (non-halogen-free). | Acceptable where halogen-free requirement is not enforced (e.g., non-EU commercial products). | Select when cost sensitivity outweighs halogen-free mandate and AEC-Q101 is not required. |
| SMBJ10AHM3_B/I | Identical M3 halogen-free construction plus AEC-Q101 qualification; same SMB package and marking code AX. | Required for automotive-grade designs needing PPAP documentation and extended temperature validation. | Choose for Tier-1 automotive BOMs where qualification evidence and traceability to revision "I" are mandatory. |
Compared with SMBJ10A-M3/5B, the E3 variant trades halogen-free status for lower unit cost in non-automotive applications, while the HM3 variant adds AEC-Q101 validation at no electrical or mechanical compromise-making it the drop-in upgrade path for automotive qualification.
Availability
SMBJ10A-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, and telecom power supplies requiring stable component supply with full halogen-free compliance and SMT manufacturability.
Supply support for SMBJ10A-M3/5B 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and application-specific optimization.
The SMBJ series targets board-level transient suppression in harsh environments, delivering consistent clamping performance across automotive, industrial, and telecom standards with scalable package options from SMA to SMC.
FAQ
What is the maximum clamping voltage of SMBJ10A-M3/5B under rated surge conditions?
The SMBJ10A-M3/5B exhibits a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 35.3 A using the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ10A-M3/5B maintains this clamping performance across its operational temperature range of -55 °C to +150 °C.
Does SMBJ10A-M3/5B meet automotive qualification standards?
The SMBJ10A-M3/5B itself is not AEC-Q101 qualified; however, it shares identical electrical and mechanical specifications with the AEC-Q101-qualified variant SMBJ10AHM3_B/I, which uses the same M3 halogen-free construction and SMB package. For automotive applications requiring formal qualification, the HM3-suffixed part must be selected. The SMBJ10A-M3/5B remains suitable for non-automotive industrial and telecom use cases where AEC-Q101 is not mandated.
How does the M3 suffix affect the environmental compliance of SMBJ10A-M3/5B?
The M3 suffix on SMBJ10A-M3/5B certifies halogen-free construction (≤900 ppm bromine, ≤900 ppm chlorine) in addition to full RoHS compliance per EU Directive 2015/863. This distinguishes it from the E3-suffixed version, which is RoHS-compliant but may contain halogenated flame retardants. The SMBJ10A-M3/5B meets IPC-1752A material declaration requirements and supports sustainability reporting for global OEM programs.
What is the thermal resistance of SMBJ10A-M3/5B, and how does it impact layout design?
The SMBJ10A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value implies that at 5.0 W steady-state dissipation, junction temperature rise would reach 500 °C-well beyond its 150 °C maximum rating-confirming that SMBJ10A-M3/5B is intended only for transient, not continuous, power dissipation. Layouts must prioritize low-inductance grounding and adequate copper area for surge current paths, not thermal mass for DC loading.
Can SMBJ10A-M3/5B be used in bidirectional signal line protection?
No-SMBJ10A-M3/5B is strictly unidirectional, with polarity indicated by a cathode band. For bidirectional protection (e.g., on AC-coupled data lines or differential buses), the SMBJ10CA variant must be used instead. Using SMBJ10A-M3/5B on bidirectional signals risks forward conduction during negative half-cycles, potentially damaging the device or distorting signal integrity. The SMBJ10A-M3/5B is engineered exclusively for DC rail and unidirectional signal protection.
SMBJ10A-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- 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)
SMBJ10A-M3/5B FAQ
1.How can I place an order for SMBJ10A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10A-M3/5B 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 SMBJ10A-M3/5B reliable?
The price and inventory of SMBJ10A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ10A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10A-M3/5B?
SMBJ10A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10A-M3/5B 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 SMBJ10A-M3/5B?
For technical support, including SMBJ10A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10A-M3/5B requirements.
6.How does Aetrix verify that SMBJ10A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ10A-M3/5B 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 SMBJ10A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ10A-M3/5B?
All SMBJ10A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10A-M3/5B, 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 SMBJ10A-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ10A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10A-M3/5B Tags
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