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Vishay General Semiconductor - Diodes Division SMBJ10A-M3/52
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- Part No.:
- SMBJ10A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10A-M3/52.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,866
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Product details
Overview
SMBJ10A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge 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, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial sensor interfaces and automotive body control modules.
For engineers reviewing the SMBJ10A-M3/52 datasheet, SMBJ10A-M3/52 pinout, SMBJ10A-M3/52 application, or SMBJ10A-M3/52 equivalent, this page delivers verified electrical parameters, thermal derating behavior, polarity marking convention, JEDEC-compliant MSL Level 1 handling, and halogen-free RoHS compliance per Vishay's M3 suffix specification.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, optimized for low-inductance PCB layouts using 5.0 mm × 5.0 mm copper pads per terminal. Its glass-passivated junction enables sub-nanosecond response to transients and stable clamping under repetitive 0.01% duty cycle surges.
Thermal performance is defined by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting operation from –55 °C to +150 °C junction temperature. The device meets UL 497B recognition (QVGQ2) and is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) - critical for load-dump protection in 12 V automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before leakage exceeds 5.0 µA; sets upper limit for safe DC bias on protected line. |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 1 mA - Confirmed breakdown threshold range defining turn-on consistency across production lots. |
| VC @ IPPM | 17.0 V at 35.3 A (10/1000 µs) - Clamped voltage seen by downstream IC during worst-case surge; ensures logic-level devices remain within absolute max ratings. |
| PPPM | 600 W - Peak transient energy absorption capacity; validated per ANSI/IEEE C62.35 with 0.01% duty cycle derating above 25 °C. |
| TJ max. | +150 °C - Maximum junction temperature enabling use in under-hood automotive environments without thermal shutdown. |
| Package | SMB (DO-214AA) - Standardized 2-pin SMD outline with 0.220" × 0.155" footprint; compatible with automated pick-and-place and reflow profiles up to 260 °C peak. |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix); MSL Level 1 per J-STD-020 - no floor life limitation; suitable for high-volume manufacturing without baking. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with 0.086" (2.18 mm) minimum cathode-to-anode distance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current toward ground when VLINE exceeds VBR; polarity must match PCB silkscreen. |
| Anode (non-banded end) | Reference node | Typically tied to system ground or lower-potential rail; forms clamping path with cathode; requires low-impedance return path for effective suppression. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Validated clamping capability against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V rails without degradation. |
| 17.0 V clamping voltage @ 35.3 A | Ensures protected 3.3 V or 5 V microcontrollers remain below 20 V absolute maximum rating during 10/1000 µs transients. |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-baking requirement and supports standard lead-free assembly processes without moisture-induced failure risk. |
| Halogen-free, RoHS-compliant (M3) | Meets EU Directive 2011/65/EU Annex II and IPC-1752A material declaration requirements for green electronics programs. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising ESD events (<1 ns rise time), improving immunity to contact discharge per IEC 61000-4-2. |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting LIN bus transceivers and door module microcontrollers from load dump and inductive switching spikes in 12 V vehicle networks. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between LIN line and ground, activated within <1 ns to limit transient overvoltage. Use Value: Prevents latch-up or gate oxide damage in 3.3 V UART peripherals during 100 V/50 ms load dump events per ISO 7637-2 Pulse 5a. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and relay-coil flyback in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 4–20 mA current loop output, absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains sensor accuracy by limiting voltage excursion to ≤17.0 V, avoiding ADC input saturation or op-amp rail-to-rail clipping. |
| Consumer Power Adapter Input Stage | Telecom Ethernet PHY Protection |
Use Scenario: Secondary-side surge suppression on 5 V/9 V USB-C PD adapter outputs exposed to user-handled cables. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp on VBUS line, triggered before downstream USB controller enters fault state. Use Value: Enables pass/fail compliance with UL 62368-1 Annex D transient immunity testing without redesigning primary-side isolation. |
Use Scenario: Protecting RJ45 magnetics and PHY ICs in PoE-powered access points from lightning-induced surges on data pairs. IC Role / Device Role / Timing Role: Common-mode TVS pair (two SMBJ10A-M3/52) on differential Ethernet lanes, referenced to chassis ground. Use Value: Limits common-mode voltage to <20 V during 1 kV/500 Ω combination wave test, preserving 100BASE-TX signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A-E3/52 | Same electrical specs, but RoHS-compliant with brominated flame retardant (not halogen-free); MSL Level 1 identical. | Acceptable where halogen-free mandate is not enforced (e.g., non-EU commercial equipment). | Select SMBJ10A-E3/52 only if material declarations do not require halogen-free certification per IPC-1752A. |
| SMAJ10A-M3 | Lower 400 W PPPM, higher VC = 19.0 V @ 24.9 A; SMA package (smaller, 3.5 mm × 2.7 mm footprint). | Suitable for space-constrained consumer PCBs where 600 W margin is not required. | Choose SMAJ10A-M3 only when board area is critical and surge threat level is limited to IEC 61000-4-5 Level 2 (1 kV). |
Compared with SMBJ10A-E3/52, the M3 variant adds halogen-free compliance without sacrificing clamping performance or thermal robustness; versus SMAJ10A-M3, SMBJ10A-M3/52 provides 50% higher surge power handling and 2.0 V lower clamping voltage - directly extending protection margin for 12 V systems.
Availability
SMBJ10A-M3/52 is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor interfaces, consumer power adapters, and telecom Ethernet PHY protection requiring stable component supply across multi-year production cycles.
Supply support for SMBJ10A-M3/52 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 and AEC-Q qualification.
The SMBJ series targets high-energy transient suppression in automotive, industrial, and communications infrastructure - engineered for repeatable clamping under harsh thermal and surge conditions.
FAQ
What is the maximum clamping voltage of SMBJ10A-M3/52 under a 10/1000 µs surge?
The SMBJ10A-M3/52 exhibits a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 35.3 A with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees downstream circuitry remains within safe operating limits during standardized surge events. The SMBJ10A-M3/52 achieves this with low incremental surge resistance and a glass-passivated junction for consistent response.
Does SMBJ10A-M3/52 meet automotive qualification standards?
The SMBJ10A-M3/52 itself is not AEC-Q101 qualified; that status applies only to variants with HE3 or HM3 suffixes (e.g., SMBJ10AHM3). However, SMBJ10A-M3/52 shares identical electrical and thermal characteristics with qualified versions and is widely used in non-safety-critical automotive subsystems such as body control modules and infotainment power rails where full AEC-Q101 is not mandated. Its M3 suffix confirms halogen-free RoHS compliance for automotive supply chains.
How does the M3 suffix differ from E3 in SMBJ10A-M3/52?
The M3 suffix in SMBJ10A-M3/52 denotes halogen-free, RoHS-compliant construction using bromine-free flame retardants in the molding compound, whereas E3 uses RoHS-compliant but brominated materials. Both meet J-STD-020 MSL Level 1 and have identical electrical specs, thermal resistance, and packaging. The M3 variant satisfies stricter environmental mandates like IPC-1752A and EU SCIP database reporting, making SMBJ10A-M3/52 preferred for green electronics programs.
Can SMBJ10A-M3/52 be used for bidirectional transient protection?
No - SMBJ10A-M3/52 is strictly unidirectional, indicated by its single cathode band marking and specified VBR/VWM parameters for reverse-bias operation only. For bidirectional protection, Vishay specifies the SMBJ10CA variant (e.g., SMBJ10CA-M3/52), which has symmetrical breakdown in both polarities and no polarity marking. Using SMBJ10A-M3/52 in bidirectional configurations risks forward conduction and failure during positive transients.
What is the thermal resistance from junction to ambient for SMBJ10A-M3/52?
The SMBJ10A-M3/52 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, per Vishay's test condition in Document 88392. This value assumes no additional heatsinking and defines the allowable power dissipation at elevated ambient temperatures - for example, at TA = 70 °C, the SMBJ10A-M3/52 must be derated to ~3.0 W to maintain TJ ≤ 150 °C.
SMBJ10A-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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-M3/52 FAQ
1.How can I place an order for SMBJ10A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10A-M3/52 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 SMBJ10A-M3/52 reliable?
The price and inventory of SMBJ10A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ10A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10A-M3/52?
SMBJ10A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10A-M3/52 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 SMBJ10A-M3/52?
For technical support, including SMBJ10A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10A-M3/52 requirements.
6.How does Aetrix verify that SMBJ10A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ10A-M3/52 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 SMBJ10A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ10A-M3/52?
All SMBJ10A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10A-M3/52, 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 SMBJ10A-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ10A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10A-M3/52 Tags
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