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Vishay General Semiconductor - Diodes Division SMBG45CHE3/52
- Part No.:
- SMBG45CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG45CHE3/52.pdf
- Description:
- TVS DIODE 45VWM 80.3VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,227
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Product details
Overview
SMBG45CHE3/52 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 45 V stand-off voltage (VWM), 50.0–55.3 V breakdown voltage (VBR) at 1 mA, 72.7 V maximum clamping voltage (VC) at 8.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SMBG45CHE3/52 datasheet, SMBG45CHE3/52 pinout, SMBG45CHE3/52 application, or SMBG45CHE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, RoHS-compliant material categorization, and direct alternative part comparisons for ESD and lightning surge protection design validation.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 100 °C/W junction-to-ambient thermal resistance supports operation up to +150 °C junction temperature under defined PCB pad conditions.
The device meets AEC-Q101 stress test requirements for automotive applications and is rated for repetitive 0.01% duty cycle surges. Clamping performance is specified at 8.3 A IPPM (10/1000 µs), delivering 72.7 V VC - critical for safeguarding 48 V system interfaces and CAN FD transceivers against ISO 7637-2 Pulse 1/2a/3a transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 45 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for 48 V nominal systems. |
| VBR (min/max) | 50.0 V / 55.3 V at 1 mA - Confirmed breakdown threshold ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 72.7 V at 8.3 A - Clamped voltage seen by protected circuit during 600 W transient; limits stress on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 µs waveform; validates compliance with IEC 61000-4-5 Level 3 (1 kV/2 kV). |
| TJ max | +150 °C - Maximum junction temperature rating; enables use in under-hood automotive environments. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on 0.2" × 0.2" copper pads; informs heatsinking and layout requirements. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per JESD47. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing lead configuration. Bi-directional construction has no polarity marking; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identical clamping function; no cathode band marking required for bi-directional operation. |
| Leads (matte tin plated) | Solder interface | Complies with J-STD-002 and JESD 22-B102; supports reflow profiles up to 260 °C peak (MSL Level 1). |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) in 12 V/24 V/48 V vehicle networks. |
| AEC-Q101 qualification | Validates suitability for automotive body control modules, ADAS sensor interfaces, and infotainment power rails. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<1.0 µA) across temperature and lifetime. |
| DO-215AA (SMBG) package | Supports automated SMT placement; footprint compatible with industry-standard SMB/SMBG land patterns. |
| RoHS-compliant & halogen-free | Meets JEDEC JS709A and EU Directive 2011/65/EU; suitable for green manufacturing and export compliance. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in engine control units. IC Role / Device Role / Timing Role: Voltage clamping element placed directly at connector entry point to shunt transients before reaching MCU ADC or LIN transceiver. Use Value: Limits induced voltage to ≤72.7 V during 8.3 A surge, preventing latch-up or permanent damage to 5 V/3.3 V signal chain components. |
Use Scenario: Safeguarding RS-485/RS-422 transceivers on programmable logic controller (PLC) backplanes exposed to field wiring surges. IC Role / Device Role / Timing Role: Bidirectional clamping device across differential pair (A/B) and ground, suppressing common-mode and differential-mode transients. Use Value: Maintains signal integrity under IEC 61000-4-4 EFT (4 kV) and IEC 61000-4-5 surge (1 kV line-earth) without adding capacitance-induced jitter. |
| Telecom Power Input | Consumer USB-C Port Protection |
Use Scenario: Secondary-side overvoltage protection on 48 V PoE++ (IEEE 802.3bt) powered devices such as IP cameras and wireless access points. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after DC-DC converter output to clamp residual switching spikes and lightning-induced surges. Use Value: Withstands 600 W pulses while holding clamped voltage below 75 V - within safe margin of 60 V-rated MOSFETs and PMICs. |
Use Scenario: Bi-directional surge suppression on VBUS and CC lines of USB-C receptacles in portable monitors and docking stations. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor guarding against hot-plug ESD (±15 kV air, ±8 kV contact) and cable discharge events. Use Value: Delivers sub-100 ns response time and <1.0 µA leakage at 45 V, preserving USB-C power delivery negotiation integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45CA-E3/52 | Same VWM (45 V), identical DO-215AB (SMB) package but slightly higher VC (73.0 V @ 8.3 A); lower thermal resistance (RθJA = 85 °C/W). | Preferred where tighter board-level thermal management is available; not AEC-Q101 qualified. | Select when automotive qualification is unnecessary and lower clamping variation is prioritized over qualification status. |
| SMCJ45CAHE3/52 | Higher PPPM (1500 W), same VWM/VBR, larger DO-214AB (SMC) package; RθJA = 40 °C/W. | Used where higher surge energy (e.g., ISO 16750-2 Load Dump) must be absorbed without derating. | Choose when system-level surge tests exceed 600 W and PCB space allows larger SMC footprint. |
Compared with SMBJ45CA-E3/52 and SMCJ45CAHE3/52, SMBG45CHE3/52 uniquely balances AEC-Q101 compliance, SMBG footprint compactness, and validated 600 W clamping performance - making it optimal for space-constrained automotive and industrial modules requiring certified reliability.
Availability
SMBG45CHE3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom 48 V power input circuits requiring stable component supply and full traceability.
Supply support for SMBG45CHE3/52 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 optimization.
The SMBG series is engineered for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-profile packaging, and precise clamping performance for next-generation 48 V architectures.
FAQ
What is the polarity configuration of SMBG45CHE3/52?
SMBG45CHE3/52 is a bi-directional transient voltage suppressor, meaning it functions identically in both forward and reverse bias directions. There is no cathode band marking on the device body, and its electrical characteristics - including VBR, VC, and leakage - apply symmetrically across both terminals. This makes SMBG45CHE3/52 ideal for protecting AC-coupled signals, differential buses like CAN or RS-485, and ungrounded power inputs where polarity cannot be assumed.
Is SMBG45CHE3/52 qualified for automotive applications?
Yes, SMBG45CHE3/52 carries the HE3 suffix, which denotes AEC-Q101 qualification per Vishay's ordering nomenclature. It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), unbiased highly accelerated stress test (UHAST), and human-body-model ESD (≥8 kV). This certification confirms SMBG45CHE3/52 is approved for use in automotive powertrain, chassis, and body electronics where reliability under harsh environmental conditions is mandatory.
What is the maximum clamping voltage of SMBG45CHE3/52 under surge conditions?
The maximum clamping voltage (VC) of SMBG45CHE3/52 is 72.7 V, measured at a peak pulse current (IPPM) of 8.3 A using the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage the protected circuit will experience during a 600 W transient event. Engineers use this parameter to verify that downstream components - such as 75 V-rated MOSFETs or 5 V/3.3 V interface ICs - remain within safe operating limits.
Does SMBG45CHE3/52 meet RoHS and halogen-free requirements?
Yes, SMBG45CHE3/52 is RoHS-compliant per EU Directive 2011/65/EU and halogen-free per JEDEC JS709A standards. The "E3" and "HE3" suffixes indicate compliance with both requirements. Material declarations confirm absence of lead, mercury, cadmium, hexavalent chromium, PBB, PBDE, and regulated chlorinated/brominated flame retardants - supporting environmentally responsible manufacturing and global market access.
What is the thermal resistance specification for SMBG45CHE3/52?
SMBG45CHE3/52 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, per Vishay's test condition. This value is critical for thermal design - for example, at 600 W dissipation, junction temperature rise would be ~60 °C above ambient, requiring careful layout to avoid exceeding the +150 °C maximum junction limit. RθJL is 20 °C/W, indicating efficient heat transfer to PCB leads.
SMBG45CHE3/52 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 45V
- Voltage - Breakdown (Min):
- 50V
- Voltage - Clamping (Max) @ Ipp:
- 80.3V
- Current - Peak Pulse (10/1000µs):
- 7.5A
- 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)
SMBG45CHE3/52 FAQ
1.How can I place an order for SMBG45CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG45CHE3/52 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 SMBG45CHE3/52 reliable?
The price and inventory of SMBG45CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG45CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG45CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG45CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG45CHE3/52?
SMBG45CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG45CHE3/52 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 SMBG45CHE3/52?
For technical support, including SMBG45CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG45CHE3/52 requirements.
6.How does Aetrix verify that SMBG45CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG45CHE3/52 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 SMBG45CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG45CHE3/52?
All SMBG45CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG45CHE3/52, 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 SMBG45CHE3/52 part is unused and in its original packaging.
Return procedure for SMBG45CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG45CHE3/52 Tags
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