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Vishay General Semiconductor - Diodes Division SMB10J17AHE3/5B
- Part No.:
- SMB10J17AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J17AHE3/5B.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,012
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Product details
Overview
SMB10J17AHE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on power and signal lines. It features a 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR at 1 mA), 27.6 V clamping voltage (VC) at 36.2 A peak pulse current, and 1000 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB10J17AHE3/5B datasheet, SMB10J17AHE3/5B pinout, SMB10J17AHE3/5B application, or SMB10J17AHE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), polarity marking convention, and real-world design implications for transient immunity in 12 V automotive systems.
Technical Context
This 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 below 20.9 V to clamp transients within nanoseconds. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance, critical for repeatable surge handling across temperature (–55 °C to +150 °C).
Designed for surface-mount automated assembly, SMB10J17AHE3/5B meets MSL level 1 per J-STD-020 and is qualified to AEC-Q101 - confirming robustness for automotive under-hood and body electronics. The cathode band denotes polarity; no marking on bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA; sets upper limit for protected line voltage. |
| VBR (min/max) | 18.9 V / 20.9 V at 1 mA - guaranteed avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC @ IPPM | 27.6 V at 36.2 A - clamped voltage during 10/1000 µs surge; determines worst-case stress on downstream ICs. |
| PPPM | 1000 W - peak pulse power handling capability; enables protection against ISO 7637-2 Pulse 1/2a/5a surges in 12 V systems. |
| IFSM | 100 A - non-repetitive forward surge current (8.3 ms half-sine); supports protection against load-dump events when used with series blocking diode. |
| RθJA | 72 °C/W - junction-to-ambient thermal resistance on 0.2" × 0.2" copper pads; informs derating above 25 °C ambient. |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD; required for ECUs, ADAS sensors, and body control modules. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during positive transients when cathode is biased higher. |
| Cathode | Reverse-biased terminal | Marked with band; connected to protected line (e.g., 12 V supply or CAN_H); avalanches into conduction when line voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Protects DC-biased lines (e.g., 12 V supply rails) without interfering with normal forward operation of downstream circuits. |
| AEC-Q101 qualification | Validated for automotive-grade reliability - eliminates need for additional qualification testing in Tier 1 BOMs for engine control, lighting, and infotainment systems. |
| 1000 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (500 V/2 Ω, 100 ms) after proper PCB layout - reduces need for multi-stage protection in cost-sensitive designs. |
| Low RθJA (72 °C/W) | Enables sustained surge duty cycles in compact layouts without thermal runaway; supports operation up to +125 °C ambient with 20 % power derating. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift over lifetime - critical for long-term field reliability in industrial PLCs and automotive modules. |
Applications
| Automotive Sensor Interface Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor inputs (e.g., temperature, pressure) in engine control units exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Shunt TVS placed between signal line and ground, clamping transients before they reach MCU ADC or LIN transceiver input. Use Value: Limits induced voltage to ≤27.6 V during 36.2 A surge, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding digital input channels on programmable logic controllers (PLCs) connected to 24 V field wiring subject to relay coil flyback and ESD. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each discrete input channel, mounted adjacent to connector to minimize inductance. Use Value: Absorbs 1000 W surges without degradation, enabling single-device protection instead of RC+TVS networks - reducing BOM count and board space. |
| 12 V Power Rail Protection | Automotive Body Control Module (BCM) |
Use Scenario: Guarding microcontroller power supply pins against battery line transients (ISO 7637-2 Pulse 1, 2a, 5a) in telematics and infotainment head units. IC Role / Device Role / Timing Role: Secondary protection stage after fuse and common-mode choke; placed directly at SoC VDD input. Use Value: Clamps 12 V rail to 27.6 V within <1 ns, maintaining system reset integrity and avoiding brown-out resets during cranking transients. | Use Scenario: Securing door module communication lines (e.g., LIN or PWM-controlled actuators) against ESD and alternator ripple in vehicle body electronics. IC Role / Device Role / Timing Role: Unidirectional TVS on each actuator drive output, referenced to chassis ground with cathode tied to output line. Use Value: AEC-Q101 qualification ensures zero infant mortality in 15-year vehicle life; 1 µA leakage at 17 V prevents battery drain in sleep mode. |
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/VC, identical SMB package, but commercial-grade (non-AEC-Q101) and supplied in 7" tape (750 pcs/reel). | Lacks automotive qualification; suitable for industrial or consumer products where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive compliance requirements and volume demand fits 7" reel logistics. |
| 1.5SMC17AHE3_A/H | Same electrical specs, but SMC (DO-214AB) package - 2.5 mm wider, 0.2 mm thicker; RθJA = 50 °C/W (better thermal performance). | Requires PCB footprint change; preferred where higher surge repetition rate or elevated ambient temperatures exist. | Choose for thermally demanding environments (e.g., under-hood ECUs) where lower thermal resistance justifies layout revision. |
Compared with SMBJ17A-E3/52, SMB10J17AHE3/5B adds AEC-Q101 assurance for automotive use without sacrificing clamping performance; versus 1.5SMC17AHE3_A/H, it trades thermal margin for smaller footprint and lower profile - ideal for space-constrained BCM and sensor modules.
Availability
SMB10J17AHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, 12 V power rail hardening, and body control module designs requiring stable component supply across production lifecycles.
Supply support for SMB10J17AHE3/5B 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, efficiency, and application-specific optimization.
The SMB10JxxA series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, surface-mount surge protection in automotive and industrial environments where AEC-Q101 compliance and low-profile packaging are mandatory.
FAQ
What is the clamping voltage of SMB10J17AHE3/5B at its rated peak pulse current?
The SMB10J17AHE3/5B has a maximum clamping voltage (VC) of 27.6 V when subjected to its specified peak pulse current (IPPM) of 36.2 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring compatibility with 3.3 V or 5 V interface ICs downstream of SMB10J17AHE3/5B.
Is SMB10J17AHE3/5B qualified for automotive applications?
Yes, SMB10J17AHE3/5B is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number: 88422, Revision: 09-Jan-2024). The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction. This certification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge - making SMB10J17AHE3/5B suitable for engine control units, ADAS sensors, and body electronics in passenger vehicles.
What does the "5B" in SMB10J17AHE3/5B indicate?
The "5B" in SMB10J17AHE3/5B is the package code specifying 13-inch diameter plastic tape and reel packaging containing 3200 units per reel. This differs from "52", which denotes 7-inch reels with 750 units. The "5B" format supports high-volume SMT assembly lines requiring longer continuous feed, and is compatible with standard pick-and-place equipment configured for 13" reels - an important logistics detail for production planning of SMB10J17AHE3/5B.
How does SMB10J17AHE3/5B differ from bidirectional TVS diodes like SMB8J17CA?
SMB10J17AHE3/5B is unidirectional and intended for DC-biased lines (e.g., 12 V supply rails), offering 1000 W peak pulse power. In contrast, SMB8J17CA is bidirectional with 800 W rating and symmetric clamping - suited for AC or differential lines like RS-485 or CAN. SMB10J17AHE3/5B's cathode band marks polarity; SMB8J17CA has no marking. Using SMB10J17AHE3/5B on AC signals would cause forward conduction during negative half-cycles, making selection dependent on signal topology.
What is the thermal resistance of SMB10J17AHE3/5B, and how does it affect layout?
SMB10J17AHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimal copper area; increasing pad size or adding internal ground planes lowers RθJA. For reliable operation above 25 °C ambient, power must be derated per Figure 2 in the datasheet - e.g., at 85 °C ambient, SMB10J17AHE3/5B retains ~65 % of its 1000 W rating. Layout must prioritize short, wide traces to thermal pads to maintain this spec.
SMB10J17AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J17AHE3/5B FAQ
1.How can I place an order for SMB10J17AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J17AHE3/5B 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 SMB10J17AHE3/5B reliable?
The price and inventory of SMB10J17AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J17AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J17AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J17AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J17AHE3/5B?
SMB10J17AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J17AHE3/5B 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 SMB10J17AHE3/5B?
For technical support, including SMB10J17AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J17AHE3/5B requirements.
6.How does Aetrix verify that SMB10J17AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J17AHE3/5B 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 SMB10J17AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J17AHE3/5B?
All SMB10J17AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J17AHE3/5B, 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 SMB10J17AHE3/5B part is unused and in its original packaging.
Return procedure for SMB10J17AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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