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Vishay General Semiconductor - Diodes Division SMB10J15A-M3/52
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- Part No.:
- SMB10J15A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J15A-M3/52.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,991
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Product details
Overview
SMB10J15A-M3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR at 1 mA), 24.4 V clamping voltage (VC) at 41 A peak pulse current, and 1000 W peak pulse power (10/1000 µs waveform), commonly deployed in automotive body control modules and industrial sensor interfaces.
For engineers reviewing the SMB10J15A-M3/52 datasheet, SMB10J15A-M3/52 pinout, SMB10J15A-M3/52 application, or SMB10J15A-M3/52 equivalent, key selection criteria include clamping performance under 41 A surge, unidirectional polarity with cathode band marking, halogen-free RoHS compliance (M3 suffix), AEC-Q101 qualification readiness, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to limit transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at 15 V), while thermal resistance (RθJA = 72 °C/W) supports operation up to +150 °C junction temperature.
The device meets IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) immunity requirements in system-level testing. Its 10/1000 µs waveform rating reflects standardized lightning-surge simulation, and MSL Level 1 rating confirms suitability for lead-free reflow up to 260 °C peak without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR (min/max) | 16.7 V / 18.5 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above nominal rail. |
| VC @ IPPM | 24.4 V at 41 A - Clamped voltage during 1000 W surge; determines protected IC's maximum stress level. |
| PPPM | 1000 W (10/1000 µs) - Peak surge power handling; validates robustness against ISO 7637-2 Pulse 1/2/5a transients. |
| IFSM | 100 A (8.3 ms half-sine) - Non-repetitive forward surge rating; supports inrush or load-dump tolerance in automotive 12 V systems. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood or enclosed industrial enclosures. |
| Leakage ID | ≤1.0 µA at 15 V - Low reverse leakage preserves battery life and avoids false triggers in always-on circuits. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, MSL Level 1, matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to protected line (e.g., 12 V supply rail); carries full surge current during clamping. |
| Cathode | Reverse-biased terminal / clamping reference | Marked with band; tied to ground or low-impedance return plane to establish clamping voltage baseline. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime; eliminates parameter drift in harsh environments. |
| AEC-Q101 qualified variant available | HM3 suffix versions meet automotive reliability standards (HTOL, TC, UHAST); SMB10J15A-M3/52 is halogen-free commercial-grade with same die. |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients; critical for protecting 3.3 V or 5 V logic from >24 V clamps. |
| MSL Level 1, 260 °C peak | Enables direct placement into lead-free reflow profiles without baking; reduces manufacturing overhead. |
| 1000 W peak pulse power | Exceeds ISO 16750-2 Load Dump requirement (≥400 W typical); provides design margin for worst-case surges. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power pins from load dump and inductive switching spikes in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Shunt clamping TVS placed between VBAT and chassis ground, triggered within <1 ns to clamp transients to ≤24.4 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic ICs during ISO 7637-2 Pulse 5a (load dump), where peak energy reaches 1000 W. | Use Scenario: Safeguards 24 V DC digital input circuitry against field-wiring ESD and surge events in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at connector entry point, clamping reverse-polarity miswiring and 4 kV contact ESD per IEC 61000-4-2. Use Value: Maintains <1.0 µA leakage at 24 V nominal, avoiding false triggering of optocoupler-based input detection while surviving 1000 W surges. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Driver Board |
Use Scenario: Shields AC/DC adapter secondary-side 12 V output from induced lightning surges entering via long interconnect cables. IC Role / Device Role / Timing Role: Primary DC rail protector downstream of bulk capacitor; activated only during >16.7 V transients, minimizing standby loss. Use Value: Delivers 24.4 V clamping at 41 A, limiting stress on downstream DC-DC converters and ensuring EN 61000-4-5 Level 3 compliance (2 kV line-earth). | Use Scenario: Guards gate driver IC supply rails against back-EMF spikes generated by brushed DC motor commutation. IC Role / Device Role / Timing Role: Localized TVS adjacent to half-bridge MOSFETs, providing sub-ns response to 100 ns rise-time inductive spikes. Use Value: Withstands 100 A non-repetitive forward surge (IFSM), enabling robust protection during repeated motor stall events without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A-E3/52 | Same SMB package, identical VWM/VC/PPPM, but RoHS-compliant commercial grade (E3) without halogen-free certification. | No AEC-Q101 path; suitable for non-automotive industrial use where halogen content is unrestricted. | Select SMBJ15A-E3/52 if halogen-free requirement is waived and cost optimization is prioritized. |
| 1.5SMC15A | Higher-power SMC package (7.1 mm × 6.2 mm); same 15 V VWM, but 27.7 V VC at 54.3 A and 1500 W PPPM. | Larger footprint required; used where higher surge margin or legacy SMC board space exists. | Choose 1.5SMC15A only when PCB layout allows larger SMC and ≥1500 W surge headroom is needed. |
Compared with SMBJ15A-E3/52, SMB10J15A-M3/52 offers halogen-free compliance for stricter environmental programs; versus 1.5SMC15A, it delivers identical clamping performance in 30% smaller SMB footprint-critical for space-constrained automotive ECUs and compact IoT edge nodes.
Availability
SMB10J15A-M3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, telecom power supplies, and consumer appliance designs requiring stable component supply with halogen-free and RoHS-compliant sourcing.
Supply support for SMB10J15A-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, TVS, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The SMB10J series belongs to Vishay's TRANSZORB® high-power TVS platform, engineered specifically for automotive and industrial surge immunity where compact size, precise clamping, and AEC-Q101 readiness are mandatory.
FAQ
What is the clamping voltage of SMB10J15A-M3/52 and how is it measured?
The SMB10J15A-M3/52 has a maximum clamping voltage (VC) of 24.4 V at 41 A peak pulse current, tested with a standardized 10/1000 µs double-exponential surge waveform. This value represents the upper voltage limit imposed on the protected line during worst-case transient events and is confirmed per ANSI/IEEE C62.35. The SMB10J15A-M3/52 achieves this clamping performance while maintaining low incremental resistance, making it suitable for safeguarding sensitive 3.3 V and 5 V ICs in automotive and industrial systems.
Is SMB10J15A-M3/52 suitable for automotive applications?
SMB10J15A-M3/52 is halogen-free and RoHS-compliant, and shares the same die and electrical characteristics as AEC-Q101-qualified variants (e.g., SMB10J15AHM3_B/H). While the M3/52 suffix itself denotes commercial-grade qualification, its construction-including glass-passivated junction, MSL Level 1 rating, and -55 °C to +150 °C operating range-enables direct use in non-safety-critical automotive subsystems such as lighting controls and infotainment power rails. For full AEC-Q101 compliance, specify the HM3 automotive ordering code.
How does SMB10J15A-M3/52 differ from SMBJ15A-E3/52?
SMB10J15A-M3/52 and SMBJ15A-E3/52 share identical electrical specs (VWM = 15 V, VC = 24.4 V, PPPM = 1000 W) and SMB (DO-214AA) package, but differ in material compliance: SMB10J15A-M3/52 is halogen-free per IEC 61249-2-21, whereas SMBJ15A-E3/52 is standard RoHS-compliant without halogen restriction. Both are rated for 260 °C lead-free reflow, but SMB10J15A-M3/52 supports stricter environmental programs like JIGS and OEM green initiatives.
What is the thermal resistance of SMB10J15A-M3/52 and why does it matter?
SMB10J15A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. This value directly impacts steady-state temperature rise under leakage current and transient self-heating. In high-temperature environments (e.g., under-hood automotive), lower RθJA prevents thermal runaway during repetitive surges; the SMB10J15A-M3/52's 72 °C/W enables reliable operation up to +150 °C junction temperature, validated per JEDEC JESD51-2.
Can SMB10J15A-M3/52 be used for bidirectional protection?
No-SMB10J15A-M3/52 is strictly unidirectional, with cathode marked by a band and intended for DC rail protection where polarity is fixed. For bidirectional AC or data-line protection, Vishay offers the SMB8J15CA series (e.g., SMB8J15CA-M3/52), which provides symmetrical clamping in both directions with 24.4 V VC at 32.8 A. Using SMB10J15A-M3/52 in bidirectional configurations risks failure due to forward conduction during negative half-cycles.
SMB10J15A-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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 41A
- Power - Peak Pulse:
- 1000W (1kW)
- 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)
SMB10J15A-M3/52 FAQ
1.How can I place an order for SMB10J15A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J15A-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 SMB10J15A-M3/52 reliable?
The price and inventory of SMB10J15A-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 SMB10J15A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J15A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J15A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J15A-M3/52?
SMB10J15A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J15A-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 SMB10J15A-M3/52?
For technical support, including SMB10J15A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J15A-M3/52 requirements.
6.How does Aetrix verify that SMB10J15A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J15A-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 SMB10J15A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J15A-M3/52?
All SMB10J15A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J15A-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 SMB10J15A-M3/52 part is unused and in its original packaging.
Return procedure for SMB10J15A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J15A-M3/52 Tags
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