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Vishay General Semiconductor - Diodes Division SMB10J17A-M3/5B
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- Part No.:
- SMB10J17A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J17A-M3/5B.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,440
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Product details
Overview
SMB10J17A-M3/5B 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 17 V stand-off voltage (VWM), 1000 W peak pulse power rating (10/1000 µs), 27.6 V maximum clamping voltage at 36.2 A peak pulse current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMB10J17A-M3/5B datasheet, SMB10J17A-M3/5B pinout, SMB10J17A-M3/5B application, or SMB10J17A-M3/5B equivalent, this device is selected for robust overvoltage protection in automotive ECUs, industrial sensor interfaces, and 12 V/24 V power supply inputs where fast response (<1 ns), low clamping ratio (1.62), and halogen-free RoHS compliance are required.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 17 V (VWM), breaks down sharply between 18.9 V and 20.9 V (VBR at 1 mA), and clamps transients to ≤27.6 V at 36.2 A (IPPM). Its glass-passivated junction ensures stable breakdown and low leakage (<1 µA at VWM).
Thermal performance is defined by RθJA = 72 °C/W and RθJL = 20 °C/W, with a maximum junction temperature of +150 °C. It meets MSL Level 1 (260 °C reflow peak) and supports automated SMT placement on standard 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before conduction begins; sets system-level overvoltage trip threshold. |
| VBR (min/max) | 18.9 V / 20.9 V at 1 mA - Confirmed breakdown range ensures reliable turn-on without premature triggering. |
| VC @ IPPM | 27.6 V at 36.2 A - Clamping voltage under full 1000 W surge; determines protected circuit's maximum transient stress. |
| PPPM | 1000 W (10/1000 µs) - Peak surge energy handling capacity; validates suitability for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4. |
| ID @ VWM | <1 µA - Ultra-low reverse leakage preserves battery life and signal integrity in always-on systems. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and high-temperature industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Cathode indicated by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage rail; defines clamping path for positive transients. |
| Cathode | Protected line input | Connected to line being protected (e.g., 12 V supply); conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Enables precise protection of DC rails without affecting normal forward bias operation of downstream circuits. |
| 1000 W peak pulse power | Supports high-energy transients per ISO 7637-2 and IEC 61000-4-5 without degradation or thermal runaway. |
| Glass-passivated junction | Ensures stable VBR over lifetime, low leakage, and resistance to humidity-induced parameter drift. |
| AEC-Q101 qualified | Validates long-term reliability in automotive applications including engine control, body electronics, and ADAS sensors. |
| MSL Level 1 | Allows single-reflow assembly without moisture sensitivity concerns; compatible with standard SMT processes up to 260 °C peak. |
Applications
| Automotive Body Control Module | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting 12 V power input of BCM against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Shunt TVS diode placed upstream of DC/DC converter and microcontroller power rails. Use Value: Limits transient voltage to ≤27.6 V during 1000 W surges, preventing latch-up or damage to 3.3 V/5 V logic and analog front-ends. |
Use Scenario: Safeguarding CANH/CANL lines against ESD and coupled transients in factory automation nodes. IC Role / Device Role / Timing Role: Unidirectional TVS on each CAN line referenced to ground, with fast <1 ns response. Use Value: Maintains signal integrity by clamping ESD events to 27.6 V while adding only 0.5 pF junction capacitance at zero bias. |
| Smart Sensor Power Input | 12 V Automotive Lighting Driver |
Use Scenario: Securing 5–24 V input of MEMS pressure/temperature sensors exposed to board-level EMI. IC Role / Device Role / Timing Role: Primary overvoltage clamp on sensor module PCB, positioned adjacent to connector. Use Value: Withstands repeated 36.2 A surges while maintaining sub-1 µA leakage-critical for ultra-low-power wake-on-event designs. |
Use Scenario: Protecting LED driver ICs and MOSFETs from alternator-induced load dump in headlamp modules. IC Role / Device Role / Timing Role: High-power TVS placed between battery input and buck controller input capacitor. Use Value: Absorbs 1000 W pulses without derating at +125 °C ambient, enabling compact thermal design in sealed housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A-M3/5B | Same VWM (17 V), VBR (18.9–20.9 V), VC (27.6 V), and PPPM (1000 W); identical SMB package and AEC-Q101 qualification. | No functional difference; SMBJ series uses same die and construction as SMB10J but with alternate branding and minor traceability coding. | Select SMBJ17A-M3/5B if sourcing from distributors listing SMBJ-series inventory; electrically and mechanically interchangeable. |
| 1.5SMC17A-E3/57T | Higher RθJA (90 °C/W vs. 72 °C/W); same VWM/VBR/VC but lower IPPM (32.7 A vs. 36.2 A); larger SMC (DO-214AB) package. | Requires larger PCB footprint (7.11 mm × 6.22 mm vs. 4.57 mm × 3.94 mm); less suitable for space-constrained automotive modules. | Choose only when higher thermal mass is needed or SMB10J17A-M3/5B is unavailable; verify layout clearance for SMC outline. |
Compared with SMB10J17A-M3/5B, SMBJ17A-M3/5B offers identical electrical and mechanical performance with no design impact, while 1.5SMC17A-E3/57T trades compactness and thermal efficiency for marginally higher surge endurance in less space-sensitive applications.
Availability
SMB10J17A-M3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and 12 V/24 V power supply inputs requiring stable component supply, AEC-Q101 compliance, and halogen-free manufacturing.
Supply support for SMB10J17A-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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade validation.
The SMB10J series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density transient suppression in harsh-environment applications including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SMB10J17A-M3/5B at its rated peak pulse current?
The SMB10J17A-M3/5B has a maximum clamping voltage (VC) of 27.6 V when subjected to its rated peak pulse current (IPPM) of 36.2 A under the standard 10/1000 µs waveform. This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during a full-power transient event. The SMB10J17A-M3/5B maintains this clamping performance across its specified operating temperature range.
Is SMB10J17A-M3/5B suitable for automotive applications?
Yes, SMB10J17A-M3/5B is AEC-Q101 qualified and explicitly intended for automotive use. It undergoes stress testing for high-temperature operating life, temperature cycling, unbiased HAST, and ESD per AEC standards. Its halogen-free M3 suffix, MSL Level 1 rating, and +150 °C TJ max make SMB10J17A-M3/5B appropriate for engine control units, body electronics, and ADAS sensor modules.
How does the SMB10J17A-M3/5B differ from bidirectional TVS diodes like SMB8J17CA?
The SMB10J17A-M3/5B is unidirectional and protects only positive-going transients on DC lines, whereas SMB8J17CA is bidirectional and handles both polarities-making it suitable for AC or data-line applications. SMB10J17A-M3/5B delivers 1000 W PPPM versus 800 W for SMB8J17CA, and its VBR is specified at 1 mA (vs. 1 mA for bidirectional), reflecting different test conditions. SMB10J17A-M3/5B is not a drop-in replacement for SMB8J17CA due to polarity and power rating differences.
What is the thermal resistance from junction to ambient for SMB10J17A-M3/5B?
The typical thermal resistance from junction to ambient (RθJA) for SMB10J17A-M3/5B is 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard JEDEC test conditions and directly impacts steady-state power dissipation capability and transient thermal response. For high-reliability designs, SMB10J17A-M3/5B thermal performance must be validated using actual PCB layout and airflow conditions.
Does SMB10J17A-M3/5B require a heatsink for 1000 W surge handling?
No, SMB10J17A-M3/5B does not require an external heatsink for single-event 1000 W surge handling because the 10/1000 µs pulse duration is too short for significant heat accumulation in the junction. Its thermal design relies on transient thermal impedance rather than steady-state dissipation. However, PCB copper pad area (minimum 5.0 mm × 5.0 mm per terminal) is mandatory to achieve the rated PPPM and prevent localized overheating during repetitive surges.
SMB10J17A-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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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)
SMB10J17A-M3/5B FAQ
1.How can I place an order for SMB10J17A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J17A-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 SMB10J17A-M3/5B reliable?
The price and inventory of SMB10J17A-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 SMB10J17A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J17A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J17A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J17A-M3/5B?
SMB10J17A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J17A-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 SMB10J17A-M3/5B?
For technical support, including SMB10J17A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J17A-M3/5B requirements.
6.How does Aetrix verify that SMB10J17A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J17A-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 SMB10J17A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J17A-M3/5B?
All SMB10J17A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J17A-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 SMB10J17A-M3/5B part is unused and in its original packaging.
Return procedure for SMB10J17A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J17A-M3/5B Tags
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