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Vishay General Semiconductor - Diodes Division SMBG15CHE3/5B
- Part No.:
- SMBG15CHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG15CHE3/5B.pdf
- Description:
- TVS DIODE 15VWM 26.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,310
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Product details
Overview
SMBG15CHE3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on signal or power lines. It features 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG15CHE3/5B datasheet, SMBG15CHE3/5B pinout, SMBG15CHE3/5B application, or SMBG15CHE3/5B equivalent, key selection criteria include clamping voltage (24.4 V at IPPM), low leakage (<1.0 μA at VWM), MSL Level 1 reflow compatibility, and RoHS-compliant matte tin terminals meeting J-STD-002 solderability.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with identical VBR min/max and VC specifications across reverse and forward directions. Its glass-passivated junction ensures stable breakdown behavior under repetitive surge stress, and thermal resistance (RθJA = 100 °C/W) supports operation up to TJ = 150 °C when mounted on 5.0 mm × 5.0 mm copper pads.
The device complies with ANSI/IEEE C62.35 for surge protection standards and delivers fast response time (<1 ns) to transient events such as ESD, inductive switching spikes, and lightning-induced surges. Its 24.4 V clamping voltage at rated IPPM enables robust protection of 15 V-rated ICs and MOSFETs without overvoltage stress during surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 16.7 V / 18.5 V at 1 mA - Ensures reliable turn-on above system nominal voltage with margin |
| VC @ IPPM | 24.4 V at 24.6 A - Clamped voltage during 600 W surge protects downstream 15 V logic or analog circuitry |
| PPPM | 600 W (10/1000 μs) - Sustains high-energy transients common in automotive load-dump and ISO 7637-2 pulses |
| ID @ VWM | <1.0 μA - Negligible leakage current preserves signal integrity and battery life in always-on circuits |
| TJ max | +150 °C - Supports under-hood automotive placement with full derating per Fig. 2 |
| MSL Level | Level 1 (260 °C peak) - Compatible with standard lead-free reflow profiles without preconditioning |
Pinout & Package
DO-215AA (SMBG) surface-mount package with gull-wing leads; no polarity marking for bi-directional configuration; matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | Either terminal serves as input/output - no orientation required during placement |
| Case (exposed metal) | Thermal conduction path | Mounted on 5.0 mm × 5.0 mm copper pad per datasheet Fig. 4 for RθJA = 100 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge events without degradation |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under temperature cycling and humidity stress |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on protected devices compared to higher-ratio suppressors |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker test - suitable for high-reliability industrial and automotive PCBs |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in vehicle infotainment head units against load-dump transients. IC Role / Device Role / Timing Role: Bi-directional TVS placed at board-level input to clamp surges before DC/DC converters and microcontrollers. Use Value: 24.4 V clamping prevents latch-up or damage to 15 V-rated PMICs and USB PHYs during 35 V/100 ms load-dump events. |
Use Scenario: Shielding 4–20 mA current-loop sensor outputs from ESD and field wiring transients in factory automation PLC modules. IC Role / Device Role / Timing Role: Surge suppression at analog front-end connector interface, upstream of op-amp conditioning stages. Use Value: Sub-1 μA leakage avoids offset error in precision current measurement; 600 W rating handles inductive kickback from solenoid actuation. |
| Telecom Data Line Protection | Consumer Device USB Port Protection |
Use Scenario: Safeguarding RS-485 transceivers in base station remote radio units exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary line-side TVS on differential bus lines, paired with secondary GDT or MOV for staged protection. Use Value: Symmetric bi-directional clamping maintains signal integrity on full-duplex links; 24.4 V VC aligns with ±12 V RS-485 common-mode range. |
Use Scenario: Adding robust ESD immunity to USB 2.0 data lines (D+/D−) in portable medical monitors with external charging ports. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to USB connector to shunt >8 kV HBM ESD pulses before USB PHY. Use Value: 24.4 V clamping stays below USB 2.0 eye diagram voltage limits; AEC-Q101 qualification ensures reliability in portable equipment drop testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | Same VWM (15 V), same DO-214AB package, but lower PPPM (600 W vs. SMBJ's 600 W - identical rating), non-AEC-Q101 qualified | Commercial-grade only; not validated for automotive temperature cycling or lifetime reliability requirements | Select SMBJ15CA only for cost-sensitive consumer or industrial designs where AEC-Q101 is not mandated |
| SAC15 | Same VWM (15 V), smaller SOD-123FL package, lower PPPM (300 W), AEC-Q101 qualified | Limited energy handling - suitable for ESD-only protection, not for load-dump or lightning surges | Choose SAC15 when board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD (±8 kV contact) |
Compared with SMBJ15CA and SAC15, SMBG15CHE3/5B uniquely combines AEC-Q101 qualification, 600 W surge capability, and DO-215AA mechanical robustness - making it the preferred choice for automotive power-line and industrial fieldbus protection where both reliability and energy handling are critical.
Availability
SMBG15CHE3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom infrastructure requiring stable component supply with full traceability and lifecycle management.
Supply support for SMBG15CHE3/5B 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, and protection devices with emphasis on reliability, efficiency, and automotive-grade validation.
The SMBG series was developed specifically for high-energy transient suppression in harsh environments, targeting automotive power distribution, industrial control, and telecom infrastructure where AEC-Q101 compliance and 600 W surge capability are mandatory.
FAQ
What is the clamping voltage of SMBG15CHE3/5B and how does it protect downstream components?
The SMBG15CHE3/5B has a maximum clamping voltage (VC) of 24.4 V at its rated peak pulse current of 24.6 A (10/1000 μs waveform). This means that during a surge event, the device limits the voltage seen by protected circuitry to ≤24.4 V - well below the breakdown threshold of most 15 V-rated ICs and MOSFETs. The low clamping ratio (VC/VBR ≈ 1.4) ensures minimal overvoltage stress while maintaining fast response and low incremental resistance.
Is SMBG15CHE3/5B suitable for automotive applications?
Yes, SMBG15CHE3/5B is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility, and guaranteed operation from –55 °C to +150 °C. The HE3 suffix confirms compliance with JESD 201 Class 2 whisker testing - essential for under-hood and body-control module deployments where vibration and thermal cycling are severe.
How does the bi-directional nature of SMBG15CHE3/5B affect PCB layout?
The SMBG15CHE3/5B has no polarity marking and functions identically in both directions, eliminating orientation constraints during automated placement. This simplifies layout - no silkscreen polarity indicator is needed, and the device can be placed symmetrically across differential lines or unidirectional rails without concern for anode/cathode alignment. Its DO-215AA gull-wing leads also support standard SMT pick-and-place tooling.
What is the thermal performance of SMBG15CHE3/5B under sustained surge conditions?
SMBG15CHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per datasheet recommendation. Under repetitive surge conditions (duty cycle ≤0.01 %), self-heating remains manageable. However, for sustained or high-duty-cycle transients, derating per Fig. 2 is required - e.g., at TA = 85 °C, maximum PPPM drops to ~420 W to maintain TJ ≤150 °C.
Does SMBG15CHE3/5B meet RoHS and halogen-free requirements?
Yes, SMBG15CHE3/5B carries the HE3 suffix, indicating full RoHS compliance per Directive 2011/65/EU and halogen-free status per JEDEC JS709A. The matte tin plating meets J-STD-002 solderability standards, and the molding compound satisfies UL 94 V-0 flammability rating - fulfilling environmental and safety mandates for global electronics manufacturing.
SMBG15CHE3/5B 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 26.9V
- Current - Peak Pulse (10/1000µs):
- 22.3A
- 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)
SMBG15CHE3/5B FAQ
1.How can I place an order for SMBG15CHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG15CHE3/5B 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 SMBG15CHE3/5B reliable?
The price and inventory of SMBG15CHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG15CHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG15CHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG15CHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG15CHE3/5B?
SMBG15CHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG15CHE3/5B 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 SMBG15CHE3/5B?
For technical support, including SMBG15CHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG15CHE3/5B requirements.
6.How does Aetrix verify that SMBG15CHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG15CHE3/5B 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 SMBG15CHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG15CHE3/5B?
All SMBG15CHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG15CHE3/5B, 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 SMBG15CHE3/5B part is unused and in its original packaging.
Return procedure for SMBG15CHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG15CHE3/5B Tags
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