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Vishay General Semiconductor - Diodes Division SMB10J17A-E3/52
- Part No.:
- SMB10J17A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J17A-E3/52.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,128
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Product details
Overview
SMB10J17A-E3/52 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 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR) at 1 mA, 1000 W peak pulse power (10/1000 µs), 36.2 A peak pulse current (IPPM), and clamps to ≤27.6 V at rated surge. It is widely used in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J17A-E3/52 datasheet, SMB10J17A-E3/52 pinout, SMB10J17A-E3/52 application, or SMB10J17A-E3/52 equivalent, key selection criteria include clamping voltage vs. protected IC's absolute maximum rating, VWM margin relative to operating voltage, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1 µA leakage at 17 V), then rapidly avalanches when transient voltage exceeds VBR to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
The device complies with ANSI/IEEE C62.35 surge waveform standards and is rated for 100 A non-repetitive forward surge (IFSM, 8.3 ms half-sine). Its MSL Level 1 rating (260 °C peak reflow) and matte tin-plated leads support robust surface-mount assembly without whisker risk or solderability degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage; must exceed system nominal voltage (e.g., 12 V automotive rail) with ≥20 % margin. |
| VBR (min/max) | 18.9 V / 20.9 V at 1 mA - Confirmed avalanche initiation range; defines minimum overvoltage threshold before clamping begins. |
| VC @ IPPM | ≤27.6 V at 36.2 A - Clamped voltage during 10/1000 µs surge; must stay below protected IC's absolute maximum input rating. |
| PPPM | 1000 W (10/1000 µs) - Peak surge energy handling capacity; determines survivability against ISO 7637-2 Pulse 1/2a/5a transients. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at stand-off voltage; negligible power loss and no measurable loading on 12–15 V supply rails. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments with proper PCB copper area. |
| RθJA | 72 °C/W - Thermal resistance junction-to-ambient on standard 0.2" × 0.2" pads; informs derating above 25 °C ambient. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; polarity indicated by cathode band (cathode terminal).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or lowest potential point; completes shunt path during avalanche conduction. |
| Cathode | Protected line input | Connected to the line being protected (e.g., +12 V rail); carries full surge current during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without pre-baking or special handling. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt surges, improving clamping precision for fast-rising transients like EFT. |
| UL 94 V-0 molding compound | Self-extinguishing encapsulant meets flammability requirements for automotive and industrial enclosures. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator switching transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp overvoltage before reaching PMIC or MCU input. Use Value: Limits peak voltage to ≤27.6 V during 1000 W surges, preserving 30 V-rated input stages of automotive-grade power management ICs. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation systems exposed to relay coil flyback. IC Role / Device Role / Timing Role: Low-capacitance TVS on 0–5 V or 4–20 mA signal lines to absorb inductive kickback without distorting signal integrity. Use Value: Sub-1 µA leakage at 17 V avoids loading sensitive op-amp outputs; fast response prevents latch-up in connected ADC front-ends. |
| Consumer USB Power Port Protection | Telecom DC Feeder Line Protection |
|
Use Scenario: Secondary overvoltage protection on USB-C PD power delivery paths where primary protection resides upstream. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBUS line to catch residual transients escaping upstream filtering or misconfigured chargers. Use Value: 17 V VWM aligns with USB PD 9 V/15 V profiles; 1000 W rating handles repeated hot-plug surges without degradation. |
Use Scenario: Protecting -48 V telecom power feeds from lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to negative rail to clamp positive-going transients while blocking reverse conduction. Use Value: AEC-Q101 qualification ensures long-term stability under continuous -40 to +85 °C operation; RθJA = 72 °C/W supports thermal design on telecom PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A-E3/52 | Same VWM (17 V), identical SMB package, but lower PPPM (600 W) and IPPM (33.4 A); not AEC-Q101 qualified. | Limited to commercial-grade consumer or computing applications; insufficient for automotive load dump compliance. | Select only if cost sensitivity outweighs automotive qualification and 1000 W surge headroom. |
| 1.5SMC17A-E3/57 | Higher power (1500 W), same VWM and VBR range, but larger SMC (DO-214AB) package; RθJA = 30 °C/W. | Better thermal performance and higher surge margin, but requires larger PCB footprint and different stencil design. | Choose when system-level surge testing exceeds ISO 7637-2 Pulse 5a or when ambient temperatures exceed 85 °C. |
Compared with SMBJ17A-E3/52, SMB10J17A-E3/52 delivers 67 % higher surge power and automotive qualification; versus 1.5SMC17A-E3/57, it trades 50 % smaller board area for 33 % lower thermal efficiency-ideal for space-constrained AEC-Q101 designs.
Availability
SMB10J17A-E3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power feeders requiring stable component supply, AEC-Q101 compliance, and high-power transient suppression in SMB footprint.
Supply support for SMB10J17A-E3/52 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, MOSFETs, optoelectronics, and passive components 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, AEC-Q101 validation, and precise clamping are critical.
FAQ
What is the clamping voltage of SMB10J17A-E3/52 under maximum rated surge current?
The SMB10J17A-E3/52 clamps to a maximum of 27.6 V when subjected to its rated 36.2 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is measured and guaranteed per Vishay Document Number 88422, ensuring predictable overvoltage limiting for downstream ICs. The SMB10J17A-E3/52 maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C) with appropriate PCB copper thermal relief.
Is SMB10J17A-E3/52 suitable for bidirectional signal line protection?
No, SMB10J17A-E3/52 is a unidirectional TVS diode and must not be used on AC-coupled or bidirectional data lines such as RS-485 or CAN. Its asymmetrical I-V curve conducts only in reverse bias; applying positive voltage beyond VWM to the anode will cause forward conduction and possible failure. For bidirectional protection, use the SMB10J17CA variant instead. The SMB10J17A-E3/52 is strictly intended for DC rail or single-polarity signal protection.
Does SMB10J17A-E3/52 require derating at elevated ambient temperatures?
Yes, SMB10J17A-E3/52 must be derated above TA = 25 °C per Figure 2 in Vishay Document 88422. With RθJA = 72 °C/W, its peak pulse power drops linearly: at 85 °C ambient, maximum PPPM reduces to approximately 580 W. Derating ensures junction temperature remains below 150 °C during surge events. The SMB10J17A-E3/52 datasheet provides exact derating curves-designers must apply them based on actual board layout and copper area.
What does the "E3/52" suffix indicate in SMB10J17A-E3/52?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "52" specifies packaging in 7" diameter plastic tape and reel containing 750 units. This format supports standard SMT pick-and-place equipment. The SMB10J17A-E3/52 ordering code confirms full compliance with JEDEC J-STD-020 (MSL Level 1) and JESD 22-B102 solderability standards-no pre-bake required prior to reflow.
How does SMB10J17A-E3/52 compare to SMAJ17A in terms of surge capability?
SMB10J17A-E3/52 delivers 1000 W peak pulse power (10/1000 µs), whereas SMAJ17A is rated at only 400 W in the smaller SMA package. The SMB10J17A-E3/52 achieves this via optimized chip geometry and thermal path in the larger SMB body, resulting in 2.5× higher IPPM (36.2 A vs. 14.3 A) and lower clamping voltage rise under surge. Both share identical VWM and VBR, but SMB10J17A-E3/52 is preferred where surge severity exceeds IEC 61000-4-5 Level 3.
SMB10J17A-E3/52 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):
- 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 (SMB)
SMB10J17A-E3/52 FAQ
1.How can I place an order for SMB10J17A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J17A-E3/52 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 SMB10J17A-E3/52 reliable?
The price and inventory of SMB10J17A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J17A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J17A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J17A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J17A-E3/52?
SMB10J17A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J17A-E3/52 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 SMB10J17A-E3/52?
For technical support, including SMB10J17A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J17A-E3/52 requirements.
6.How does Aetrix verify that SMB10J17A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J17A-E3/52 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 SMB10J17A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J17A-E3/52?
All SMB10J17A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J17A-E3/52, 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 SMB10J17A-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J17A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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