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Vishay General Semiconductor - Diodes Division SMBG17AHE3/52
- Part No.:
- SMBG17AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG17AHE3/52.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,602
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Product details
Overview
SMBG17AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), <1.0 μA reverse leakage at VWM, and clamps to ≤27.6 V at 21.7 A peak pulse current - deployed on signal lines and power rails in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMBG17AHE3/52 datasheet, SMBG17AHE3/52 pinout, SMBG17AHE3/52 application, or SMBG17AHE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and precise mechanical dimensions per DO-215AA outline - all critical for ESD/surge co-design and layout validation.
Technical Context
This unidirectional TVS diode operates as a clamping device that enters avalanche conduction when transient voltage exceeds its VBR threshold, limiting downstream voltage to ≤27.6 V at rated IPPM. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced transients.
Designed for surface-mount automated placement, SMBG17AHE3/52 meets J-STD-020 MSL Level 1 (peak reflow 260 °C), supports 100 A non-repetitive forward surge (8.3 ms half-sine), and is qualified to AEC-Q101 - confirming suitability for automotive under-hood and infotainment power rail protection where reliability under thermal cycling and vibration is mandatory.
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 mA - guaranteed avalanche initiation range; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | ≤27.6 V at 21.7 A - clamping voltage under 600 W 10/1000 μs surge; determines maximum stress on protected IC inputs. |
| IPPM | 21.7 A - peak pulse current capability with standard waveform; sets minimum trace width and fuse coordination requirements. |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance on 0.2" × 0.2" copper pads; informs derating above 25 °C ambient. |
| TJ max. | +150 °C - maximum junction temperature; enables operation in engine bay or industrial enclosures without active cooling. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMBG (DO-215AA) - surface-mount, low-profile gull-wing leaded case with matte tin-plated terminals, UL 94 V-0 molding compound, and cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point for unidirectional clamping path | Connected to protected line; conducts avalanche current toward ground during positive transients. |
| Anode (non-banded end) | Reference/ground return node | Must be tied to low-impedance system ground plane to ensure effective clamping and minimize ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without cascaded stages. |
| Glass passivated chip junction | Ensures long-term stability of VBR and low parameter drift over 15+ year automotive service life. |
| AEC-Q101 qualification | Validates performance under automotive stress conditions including thermal shock, humidity, and mechanical vibration. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without popcorn cracking or delamination risk. |
| Low incremental surge resistance | Minimizes clamping overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-supplied microcontrollers and CAN transceivers from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VBAT and ground, upstream of LDO input. Use Value: Limits voltage to ≤27.6 V during 600 W surges, preventing latch-up or gate oxide damage in downstream PMICs and MCUs. | Use Scenario: Safeguarding analog outputs (4–20 mA, 0–10 V) and digital I/O (RS-485, SPI) in factory-floor pressure/temperature sensors. IC Role / Device Role / Timing Role: Point-of-entry TVS on each signal line, referenced to local ground with minimal trace inductance. Use Value: Clamps ESD events (IEC 61000-4-2 ±8 kV contact) within nanoseconds, preserving ADC accuracy and communication integrity. |
| Consumer Device USB Port Protection | Telecom Base Station DC Feed Protection |
Use Scenario: Shielding USB 2.0 data lines and VBUS against ESD and hot-plug induced transients in portable medical monitors. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; SMBG17AHE3/52 applied on VBUS only due to unidirectional polarity. Use Value: Withstands >1000 ESD strikes at ±8 kV without parametric shift, meeting IEC 61000-4-2 compliance for Class B devices. | Use Scenario: Guarding 48 V DC power feed lines entering remote radio units (RRUs) from induced lightning surges. IC Role / Device Role / Timing Role: Primary-stage TVS on DC input, coordinated with MOV and gas discharge tube in multi-stage architecture. Use Value: Absorbs 600 W pulses without thermal runaway, maintaining clamping performance across –40 to +85 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG17AE3/52 | No AEC-Q101 qualification; identical electrical specs and SMBG package. | Not approved for automotive use; suitable for industrial/commercial designs without automotive reliability mandates. | Select SMBG17AE3/52 when AEC-Q101 is not required and cost optimization is prioritized. |
| SMBJ17AHE3/52 | Same VWM/VBR/VC, but SMBJ (DO-214AB) package - larger footprint, higher RθJA (85 °C/W), lower IPPM (21.2 A). | Less space-constrained layouts; slightly reduced surge handling due to thermal limits. | Choose SMBJ17AHE3/52 only if board real estate allows larger package and thermal design accommodates higher junction rise. |
Compared with SMBG17AHE3/52, SMBG17AE3/52 offers identical protection performance without automotive qualification, while SMBJ17AHE3/52 trades compactness for marginally lower thermal efficiency - making SMBG17AHE3/52 optimal for space-limited AEC-Q101-compliant designs requiring best-in-class power density.
Availability
SMBG17AHE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor modules, and telecom power supply interfaces requiring stable component supply, AEC-Q101 assurance, and consistent surge immunity across production batches.
Supply support for SMBG17AHE3/52 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 high-reliability, high-efficiency, and automotive-grade solutions.
The SMBG series was engineered specifically for surface-mount transient suppression in space-constrained, thermally demanding environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and 600 W surge capability are mandatory.
FAQ
What is the clamping voltage of SMBG17AHE3/52 at its rated peak pulse current?
The SMBG17AHE3/52 clamps to a maximum of 27.6 V at 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 surge events - critical for ensuring compatibility with 3.3 V or 5 V logic interfaces downstream of the SMBG17AHE3/52.
Is SMBG17AHE3/52 suitable for bidirectional transient suppression?
No, SMBG17AHE3/52 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay specifies the "CA" suffix (e.g., SMBG17CA). Using SMBG17AHE3/52 in bidirectional configurations risks failure during negative-going transients, as it lacks symmetrical breakdown behavior - always verify polarity alignment before placing SMBG17AHE3/52 in circuit.
Does SMBG17AHE3/52 require a heatsink for 600 W surge dissipation?
No, SMBG17AHE3/52 does not require an external heatsink for single-event 600 W surge handling. Its thermal design relies on short-duration pulse energy absorption and PCB copper pad thermal mass (0.2" × 0.2" per terminal). However, repetitive surges exceeding 0.01% duty cycle demand careful thermal analysis using RθJA = 100 °C/W and junction temperature limits - sustained operation near TJ max. (+150 °C) must be avoided.
What is the meaning of the "HE3/52" suffix in SMBG17AHE3/52?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification, while "/52" specifies packaging in 7" diameter plastic tape and reel containing 750 units. This ordering code ensures traceability to Vishay's qualified automotive-grade production lot and confirms compliance with JESD201 Class 2 whisker resistance and J-STD-020 reflow standards - essential for Tier 1 automotive procurement.
How does SMBG17AHE3/52 compare to SMAJ17A in terms of surge capability?
SMBG17AHE3/52 delivers identical 600 W peak pulse power and comparable VC (27.6 V) to SMAJ17A, but uses the smaller SMBG (DO-215AA) package versus SMAJ's DO-214AC. The SMBG footprint saves ~30% board area and offers lower parasitic inductance, improving high-frequency transient response - however, SMBG17AHE3/52 has higher RθJA (100 °C/W vs. ~75 °C/W for SMAJ), requiring tighter thermal layout control in high-ambient environments.
SMBG17AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- 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):
- 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 (SMBG)
SMBG17AHE3/52 FAQ
1.How can I place an order for SMBG17AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG17AHE3/52 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 SMBG17AHE3/52 reliable?
The price and inventory of SMBG17AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG17AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG17AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG17AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG17AHE3/52?
SMBG17AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG17AHE3/52 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 SMBG17AHE3/52?
For technical support, including SMBG17AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG17AHE3/52 requirements.
6.How does Aetrix verify that SMBG17AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG17AHE3/52 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 SMBG17AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG17AHE3/52?
All SMBG17AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG17AHE3/52, 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 SMBG17AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG17AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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