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Vishay General Semiconductor - Diodes Division SMBJ17AHE3/52
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- Part No.:
- SMBJ17AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ17AHE3/52.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,371
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Product details
Overview
SMBJ17AHE3/52 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 17 V stand-off voltage (VWM), 27.6 V maximum clamping voltage at 21.7 A peak pulse current (10/1000 µs), and 600 W peak pulse power rating - deployed to protect MOSFETs, ICs, and sensor interfaces in industrial motor drives and telecom power supplies.
For engineers reviewing the SMBJ17AHE3/52 datasheet, SMBJ17AHE3/52 pinout, SMBJ17AHE3/52 application, or SMBJ17AHE3/52 equivalent, key selection criteria include its AEC-Q101 qualification status, low 0.090 %/°C VBR temperature coefficient, 1.0 µA max reverse leakage at 17 V, and compatibility with automated SMT placement on standard PCB pads per J-STD-020 MSL Level 1.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for stable breakdown behavior under repetitive 10/1000 µs surges up to 600 W. Its thermal resistance (RθJA = 100 °C/W) and junction-to-lead resistance (RθJL = 20 °C/W) support reliable operation up to +150 °C junction temperature.
The SMBJ17AHE3/52 variant is RoHS-compliant and AEC-Q101 qualified, distinguishing it from commercial-grade E3/M3 versions. Its 18.9–20.9 V breakdown voltage range (VBR) at 1.0 mA test current ensures precise overvoltage thresholding without premature conduction during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR min/max | 18.9 V / 20.9 V at 1.0 mA - Confirmed breakdown window ensures predictable turn-on without false triggering. |
| VC @ IPPM | 27.6 V at 21.7 A - Clamping voltage limits downstream component stress during 10/1000 µs surge events. |
| PPPM | 600 W - Peak pulse power handling capability supports IEC 61000-4-5 Level 4 surge immunity compliance. |
| IPPM | 21.7 A - Peak surge current capacity derived from 10/1000 µs waveform; validated with derating above 25 °C. |
| ID @ VWM | 1.0 µA max - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss. |
| TJ max | +150 °C - Enables deployment in high-temperature environments such as automotive engine control units. |
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; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to protected line side; conducts only during forward-biased surge conditions. |
| Cathode | Reverse-biased clamping node | Marked by band; sinks transient energy to ground when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards. |
| 600 W peak pulse power (10/1000 µs) | Supports robust protection against lightning-induced surges and inductive switching spikes in industrial power rails. |
| Glass passivated junction | Ensures stable VBR and low leakage across extended temperature and humidity exposure. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure risk. |
| Low incremental surge resistance | Minimizes clamping overshoot during fast transients, improving protection margin for sensitive CMOS inputs. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and bus voltage sensing circuits against inductive kickback from IGBT switching. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed across DC-link or gate-source terminals. Use Value: Limits transient voltage to ≤27.6 V, preventing gate oxide rupture in 600 V IGBTs while maintaining <1.0 µA leakage at 17 V nominal rail. |
Use Scenario: Input-stage surge suppression on -48 V DC telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side distribution bus prior to DC-DC converters. Use Value: Absorbs 600 W pulses without degradation, enabling compliance with GR-1089-CORE Level 4 surge requirements. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
Use Scenario: CAN/LIN bus line protection in BCMs subjected to load dump and jump-start transients. IC Role / Device Role / Timing Role: Secondary-level TVS on 12 V supply rail feeding microcontroller peripherals. Use Value: AEC-Q101 qualification ensures survivability across -40 °C to +125 °C ambient with <0.090 %/°C VBR drift. |
Use Scenario: Overvoltage safeguard for 4–20 mA current loop transmitters interfacing with PLC analog inputs. IC Role / Device Role / Timing Role: Reverse-polarity and surge clamp on loop-powered sensor output lines. Use Value: 27.6 V clamping prevents op-amp input saturation during 1 kV/500 A surge events per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17AE3/52 | Commercial-grade version; not AEC-Q101 qualified; same VWM, VC, and PPPM. | Lacks automotive qualification; suitable for non-automotive industrial or consumer designs. | Select when AEC-Q101 is not required and cost optimization is prioritized. |
| SMAJ17AHE3/A | Lower 400 W PPPM; SMA (DO-214AC) package with smaller footprint and higher RθJA (140 °C/W). | Reduced surge handling; limited to lower-energy transients or space-constrained layouts. | Choose only if board area is critical and surge threat level is below IEC 61000-4-5 Level 3. |
Compared with SMBJ17AE3/52 and SMAJ17AHE3/A, the SMBJ17AHE3/52 uniquely combines AEC-Q101 qualification, 600 W surge capacity, and SMB package thermal performance - making it the preferred choice for automotive and high-reliability industrial deployments where both qualification and robustness are mandatory.
Availability
SMBJ17AHE3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply across long production lifecycles.
Supply support for SMBJ17AHE3/52 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, efficiency, and application-specific performance.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robust overvoltage protection and long-term stability are critical.
FAQ
What is the breakdown voltage range of SMBJ17AHE3/52?
The SMBJ17AHE3/52 has a guaranteed breakdown voltage (VBR) range of 18.9 V to 20.9 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and temperature extremes, directly supporting design margin calculations for protected circuits.
Is SMBJ17AHE3/52 suitable for automotive applications?
Yes, SMBJ17AHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD per JEDEC standards - making it appropriate for under-hood and chassis-mounted modules where reliability is mission-critical.
What is the maximum clamping voltage of SMBJ17AHE3/52 during a surge event?
The SMBJ17AHE3/52 clamps to a maximum of 27.6 V when subjected to its rated peak pulse current of 21.7 A (10/1000 µs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events.
Does SMBJ17AHE3/52 have polarity marking, and how is it identified?
Yes, SMBJ17AHE3/52 is unidirectional and features a cathode band marking on the SMB (DO-214AA) package body. The banded end corresponds to the cathode terminal, which must be connected toward the ground or return path to enable proper reverse-biased clamping operation.
What is the thermal resistance specification for SMBJ17AHE3/52?
The SMBJ17AHE3/52 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. Its junction-to-lead resistance (RθJL) is 20 °C/W, supporting effective heat transfer in compact SMT layouts without external heatsinking.
SMBJ17AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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):
- 21.7A
- Power - Peak Pulse:
- 600W
- 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 (SMBJ)
SMBJ17AHE3/52 FAQ
1.How can I place an order for SMBJ17AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ17AHE3/52 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 SMBJ17AHE3/52 reliable?
The price and inventory of SMBJ17AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ17AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ17AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ17AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ17AHE3/52?
SMBJ17AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ17AHE3/52 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 SMBJ17AHE3/52?
For technical support, including SMBJ17AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ17AHE3/52 requirements.
6.How does Aetrix verify that SMBJ17AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ17AHE3/52 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 SMBJ17AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ17AHE3/52?
All SMBJ17AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ17AHE3/52, 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 SMBJ17AHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ17AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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