My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T15AHE3_B/I
- Part No.:
- SM6T15AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T15AHE3_B/I.pdf
- Description:
- 600W,15V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,472
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T15AHE3_B/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 15 V breakdown voltage (VBR = 14.3–15.8 V at 1 mA), 12.8 V stand-off voltage (VWM), 21.2 V maximum clamping voltage (VC) at 28 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial systems.
For engineers reviewing the SM6T15AHE3_B/I datasheet, SM6T15AHE3_B/I pinout, SM6T15AHE3_B/I application, or SM6T15AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low-inductance SMB package, and compliance with J-STD-020 MSL level 1 reflow profile.
Technical Context
This TVS diode operates as a fast-acting shunt clamp during overvoltage events, leveraging a glass-passivated silicon junction to achieve low leakage (<1 μA at 12.8 V) and stable breakdown behavior. Its unidirectional configuration enables integration into DC power rails and single-polarity signal paths without reverse conduction concerns.
The device delivers consistent clamping performance under repetitive 10/1000 μs transients up to 600 W, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation in compact PCB layouts with minimum 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at 1 mA - defines precise voltage threshold where clamping initiates |
| VWM | 12.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 21.2 V at 28 A (10/1000 μs) - clamping voltage seen by protected circuit during surge |
| PPPM | 600 W - peak transient power handling capability under standard waveform |
| TJ max | +150 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated placement and reflow soldering |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band marking; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (reverse-biased during clamping) | Connected to lower-potential side of protected line; forms cathode-anode junction with marked end |
| Cathode (banded end) | Clamping reference node | Connected to higher-potential rail (e.g., VCC or signal line); conducts surge current to ground when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime |
| 600 W peak pulse power (10/1000 μs) | Provides robust protection against ISO 7637-2 pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., ESD, load dump) |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without preconditioning or moisture sensitivity handling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between VBAT and ground. Use Value: Limits voltage to ≤21.2 V during 600 W surges, preventing damage to downstream regulators and microcontrollers. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in PLC modules. IC Role / Device Role / Timing Role: Signal-line TVS on 4–20 mA or 0–10 V output paths. Use Value: Clamps induced lightning-induced surges while maintaining <1 μA leakage at 12.8 V operating voltage. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Input-side transient suppression in AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Primary-side unidirectional clamp on DC bus after rectification. Use Value: Withstands repetitive 10/1000 μs pulses up to 28 A without degradation, ensuring long-term reliability. | Use Scenario: Secondary-side protection on Ethernet PHY power rails in base station line cards. IC Role / Device Role / Timing Role: Localized clamping on +3.3 V or +5 V supply nets feeding communication ICs. Use Value: AEC-Q101 qualification and 150 °C TJ max support operation in thermally constrained telecom chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/52 | Same SMB package, 15 V VBR, but rated for 400 W PPPM (vs. 600 W) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and higher surge margin |
| SMCJ15A-QH | Higher-power SMC package (1500 W), same VBR range, AEC-Q101 qualified | Larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm); higher thermal mass | Choose when system-level surge requirements exceed 600 W or board space allows larger package |
Compared with SMAJ15A-E3/52 and SMCJ15A-QH, SM6T15AHE3_B/I uniquely balances AEC-Q101 compliance, 600 W surge capacity, and compact SMB footprint - making it optimal for space-constrained automotive and industrial PCBs requiring validated reliability without oversizing.
Availability
SM6T15AHE3_B/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and consumer power adapter designs requiring stable component supply and AEC-Q101-compliant transient protection.
Supply support for SM6T15AHE3_B/I 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 application-specific performance.
The SM6T Series is engineered for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness against electrical overstress is critical.
FAQ
What is the breakdown voltage tolerance of SM6T15AHE3_B/I?
The SM6T15AHE3_B/I has a specified breakdown voltage range of 14.3 V to 15.8 V at 1 mA test current, corresponding to ±5% tolerance around the nominal 15 V rating. This tight VBR window ensures predictable clamping onset in safety-critical circuits. The parameter is verified per JEDEC standards and documented in Vishay's official datasheet revision 09-Jan-2024 (Doc. #88385). SM6T15AHE3_B/I maintains this specification across its full operating temperature range.
Is SM6T15AHE3_B/I suitable for automotive applications?
Yes, SM6T15AHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code and explicit listing in Vishay's automotive-grade product documentation. It undergoes stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements. SM6T15AHE3_B/I is deployed in engine control modules, body electronics, and ADAS sensor interfaces where sustained operation at 150 °C junction temperature and immunity to load dump transients are required.
What is the maximum clamping voltage of SM6T15AHE3_B/I under surge conditions?
The maximum clamping voltage (VC) of SM6T15AHE3_B/I is 21.2 V at 28 A peak pulse current using the standardized 10/1000 μs waveform. This value represents the worst-case voltage imposed on the protected circuit during a 600 W transient event. Data is measured per Fig. 1 and Table on page 2 of Vishay's SM6T datasheet (Doc. #88385), and applies at TA = 25 °C with recommended 5.0 mm × 5.0 mm copper pads. SM6T15AHE3_B/I maintains this clamping performance across its rated temperature range.
Does SM6T15AHE3_B/I have bidirectional capability?
No, SM6T15AHE3_B/I is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA") and absence of bidirectional marking in its electrical characteristics table. Its polarity is defined by the cathode band; it conducts only when anode-to-cathode voltage exceeds VBR. For bidirectional protection, Vishay offers variants like SM6T15CAHE3_B/I. SM6T15AHE3_B/I must be oriented correctly in DC circuits to avoid unintended conduction - a design requirement explicitly stated in the Vishay SM6T family datasheet.
What packaging format does SM6T15AHE3_B/I ship in?
SM6T15AHE3_B/I ships in 13-inch diameter plastic tape and reel format, with a base quantity of 3200 units per reel (ordering code suffix "_B/I"). This format supports high-speed automated pick-and-place assembly and complies with EIA-481 standards. The "I" denotes the reel size variant, while "HE3" confirms RoHS-compliant and AEC-Q101-qualified construction. SM6T15AHE3_B/I's tape dimensions and sprocket hole alignment match industry-standard feeders used in SMT lines.
SM6T15AHE3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T15AHE3_B/I FAQ
1.How can I place an order for SM6T15AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T15AHE3_B/I 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 SM6T15AHE3_B/I reliable?
The price and inventory of SM6T15AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T15AHE3_B/I is usually 5 days.
3.What payment methods are accepted for SM6T15AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T15AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T15AHE3_B/I?
SM6T15AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T15AHE3_B/I 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 SM6T15AHE3_B/I?
For technical support, including SM6T15AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T15AHE3_B/I requirements.
6.How does Aetrix verify that SM6T15AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SM6T15AHE3_B/I 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 SM6T15AHE3_B/I meets industry standards.
7.What is the process for return or replacement of SM6T15AHE3_B/I?
All SM6T15AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T15AHE3_B/I, 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 SM6T15AHE3_B/I part is unused and in its original packaging.
Return procedure for SM6T15AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T15AHE3_B/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
