My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG15AHE3/5B
- Part No.:
- SMBG15AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG15AHE3/5B.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,074
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG15AHE3/5B 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 a 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR) at 1 mA, 24.4 V maximum clamping voltage (VC) at 24.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed on automotive sensor signal lines, industrial I/O ports, and DC power rails.
For engineers reviewing the SMBG15AHE3/5B datasheet, SMBG15AHE3/5B pinout, SMBG15AHE3/5B application, or SMBG15AHE3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below VWM = 15 V and rapidly transitions to low-impedance conduction above VBR (min 16.7 V), limiting transient-induced voltage excursions to ≤24.4 V at rated 24.6 A surge. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and repeatable breakdown behavior across temperature.
The SMBG15AHE3/5B is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports MSL Level 1 handling (260 °C peak reflow), and delivers thermal resistance of 100 °C/W (junction-to-ambient) when mounted per recommended 0.2" × 0.2" pad layout - enabling reliable operation in automotive under-hood and industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC bias margin. |
| VBR (min/max) | 16.7 V / 18.5 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 24.4 V at 24.6 A - Clamped voltage during 600 W 10/1000 μs surge; determines protected circuit's worst-case overvoltage exposure. |
| PPPM | 600 W - Peak pulse power handling capability; validates suitability for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3/4 surges. |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms); supports protection against inductive switch-off events in motor drivers and solenoid controls. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive modules and high-ambient industrial enclosures. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
Pinout & Package
Package: SMBG (DO-215AA) - surface-mount, low-profile gull-wing leaded package with matte tin-plated terminals, UL 94 V-0 molding compound, and cathode band marking for unidirectional polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration. |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., CAN_H, LIN, sensor supply) - clamps transients toward ground when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables suppression of high-energy transients such as load dump and inductive kick without failure. |
| AEC-Q101 qualification | Validates long-term reliability in automotive applications including engine control units and ADAS sensor interfaces. |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage (<1.0 μA), and resistance to humidity and contamination. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning or baking, reducing manufacturing complexity. |
| Low profile SMBG package | Reduces board space vs. SMA/SMB; compatible with automated pick-and-place and AOI inspection systems. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine management and chassis control modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input or signal conditioner. Use Value: Limits ISO 16750-2 load dump and ISO 7637-2 Pulse 1/2a transients to ≤24.4 V, preserving ADC integrity and preventing latch-up. | Use Scenario: Safeguarding RS-485, CAN, or digital I/O pins on PLC modules exposed to field wiring surges and ESD. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between data line and ground, with VWM = 15 V matching typical 12 V bus logic levels. Use Value: Clamps 1 kV/500 A IEC 61000-4-5 surges within 1 ns, maintaining signal integrity while surviving >1000 surges per MIL-STD-883H Method 3015.7. |
| DC Power Rail Protection | Consumer Device USB/Charging Line Protection |
Use Scenario: Secondary overvoltage protection on 12 V or 24 V DC input rails feeding motor drivers, lighting controllers, or power supplies. IC Role / Device Role / Timing Role: Parallel-connected TVS referenced to system ground, placed upstream of input filter capacitors and fuse. Use Value: Absorbs 600 W surges without degradation, preventing damage to downstream MOSFETs, regulators, and optocouplers during load switching. | Use Scenario: Input-side transient suppression on 5 V USB VBUS or fast-charging adapter inputs in smart home hubs and portable medical devices. IC Role / Device Role / Timing Role: Unidirectional clamp between VBUS and GND, leveraging 15 V VWM to avoid interference with 5 V nominal operation. Use Value: Withstands ±15 kV contact ESD (IEC 61000-4-2) and limits induced surges to <25 V, ensuring USB PHY compliance and preventing port lockup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A-E3/52 | Same VWM/VBR/VC, but SMB (DO-214AA) package; 100 °C/W RθJA; no AEC-Q101 qualification. | Not qualified for automotive; suitable for commercial/industrial PCBs where AEC-Q101 is not mandated. | Select SMBJ15A-E3/52 only if AEC-Q101 is unnecessary and existing footprint allows SMB package substitution. |
| 1.5SMC15A | Same electrical specs, but larger SMC (DO-214AB) package; higher thermal mass; RθJA = 60 °C/W; AEC-Q101 qualified. | Better thermal performance in high-duty-cycle surge environments; requires larger board area. | Choose 1.5SMC15A when sustained surge repetition or higher ambient temperatures demand improved thermal dissipation. |
Compared with SMBJ15A-E3/52 and 1.5SMC15A, the SMBG15AHE3/5B uniquely combines AEC-Q101 qualification, SMBG's compact gull-wing footprint, and optimized thermal performance for space-constrained automotive modules - making it the preferred choice where both qualification and miniaturization are required.
Availability
SMBG15AHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and DC power rail safeguarding requiring stable component supply, AEC-Q101 traceability, and consistent 13" tape-and-reel delivery.
Supply support for SMBG15AHE3/5B 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, TVS devices, and MOSFETs with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was developed specifically for AEC-Q101-compliant, surface-mount transient suppression in automotive and harsh-environment industrial systems - prioritizing low clamping voltage, fast response, and robust thermal design in compact packages.
FAQ
What is the maximum clamping voltage of the SMBG15AHE3/5B under rated surge conditions?
The SMBG15AHE3/5B has a maximum clamping voltage (VC) of 24.4 V at 24.6 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per JEDEC standards and reflects the actual voltage seen by protected circuitry during a full-power transient event. The SMBG15AHE3/5B maintains this clamping performance across its specified operating temperature range and after repeated surge exposures when used within derating guidelines.
Is the SMBG15AHE3/5B suitable for automotive applications?
Yes, the SMBG15AHE3/5B is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. Its qualification covers temperature cycling, high-temperature reverse bias, and ESD testing per the AEC-Q101 stress test plan. The SMBG15AHE3/5B also meets MSL Level 1 for lead-free reflow and supports operation from –55 °C to +150 °C junction temperature - fulfilling critical requirements for under-hood and cabin-mounted modules.
What does the "HE3" suffix indicate in SMBG15AHE3/5B?
The "HE3" suffix in SMBG15AHE3/5B denotes RoHS-compliant construction with AEC-Q101 qualification, distinguishing it from industrial-grade "E3" variants. Per Vishay's ordering nomenclature, HE3 devices use matte tin-plated leads, meet JESD 201 Class 2 whisker resistance, and undergo full AEC-Q101 stress testing - confirming suitability for automotive production. The "5B" suffix specifies 13-inch tape-and-reel packaging with 3200 units per reel.
How does the SMBG15AHE3/5B compare to bidirectional TVS diodes like SMBG15CA?
The SMBG15AHE3/5B is unidirectional and intended for DC-biased lines where clamping occurs only in reverse direction (e.g., 12 V supply to ground). In contrast, SMBG15CA is bidirectional and symmetric - suitable for AC-coupled or floating signal lines like Ethernet or audio. The SMBG15AHE3/5B offers lower leakage (<1.0 μA at 15 V) and avoids ambiguity in polarity assignment, whereas SMBG15CA exhibits identical VBR in both directions but higher leakage at VWM.
What is the thermal resistance of the SMBG15AHE3/5B, and how does it affect layout?
The SMBG15AHE3/5B 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. This value assumes minimum recommended pad layout per Vishay's datasheet Figure 5. To maintain safe junction temperatures during repetitive surges, designers must ensure adequate copper area and avoid excessive trace length or isolation - especially in high-ambient environments like automotive under-hood applications where the SMBG15AHE3/5B's +150 °C TJ max must be respected.
SMBG15AHE3/5B 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 24.6A
- 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)
SMBG15AHE3/5B FAQ
1.How can I place an order for SMBG15AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG15AHE3/5B 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 SMBG15AHE3/5B reliable?
The price and inventory of SMBG15AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG15AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG15AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG15AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG15AHE3/5B?
SMBG15AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG15AHE3/5B 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 SMBG15AHE3/5B?
For technical support, including SMBG15AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG15AHE3/5B requirements.
6.How does Aetrix verify that SMBG15AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG15AHE3/5B 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 SMBG15AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG15AHE3/5B?
All SMBG15AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG15AHE3/5B, 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 SMBG15AHE3/5B part is unused and in its original packaging.
Return procedure for SMBG15AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG15AHE3/5B 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 …
