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Vishay General Semiconductor - Diodes Division SMBG150AHE3/52
- Part No.:
- SMBG150AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG150AHE3/52.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,138
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Product details
Overview
SMBG150AHE3/52 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 a 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), clamping voltage of 243 V at 2.5 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG150AHE3/52 datasheet, SMBG150AHE3/52 pinout, SMBG150AHE3/52 application, or SMBG150AHE3/52 equivalent, this device is selected for high-energy surge suppression in automotive power lines, industrial sensor interfaces, and DC bus protection where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.45), and stable junction temperature up to +150 °C are critical.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 150 V), then rapidly avalanches below 185 V to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and long-term reliability under repetitive transients.
The SMBG150AHE3/52 uses a single PN junction with cathode-band polarity marking, supports 100 A non-repetitive forward surge (8.3 ms half-sine), and exhibits thermal resistance of 100 °C/W (junction-to-ambient) on standard 5.0 mm × 5.0 mm copper pads - enabling predictable derating above 25 °C ambient per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (min/max) | 167 V / 185 V at 1 mA - tight 5 % tolerance ensures predictable turn-on across production lots. |
| VC @ IPPM | 243 V at 2.5 A - clamping voltage limits protected circuit stress during 10/1000 µs surges. |
| PPPM | 600 W - peak pulse power rating confirms capability to absorb defined lightning/surge energy without failure. |
| IFSM | 100 A - surge current handling for 8.3 ms half-sine wave, critical for automotive load-dump immunity. |
| TJ max | +150 °C - maximum junction temperature enables operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - validated for automotive applications including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile (max height 0.030"), RoHS-compliant matte tin-plated leads, MSL Level 1 (260 °C reflow peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected line ground or low-side reference. | Defines current path during clamping: surge enters cathode, exits anode to ground plane. |
| Cathode (banded end) | Current exit terminal in forward bias; marked with visible band for orientation. | Must be connected to the line being protected (e.g., 12 V battery rail); determines unidirectional polarity. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surge tests. |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling (-55 °C to +150 °C), HTRB, and mechanical shock. |
| Glass passivated junction | Ensures stable VBR over time and humidity exposure; eliminates risk of junction corrosion in harsh environments. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD >15 kV), improving system-level immunity. |
| MSL Level 1 (260 °C) | Supports standard lead-free reflow without preconditioning; eliminates moisture-related popcorning during assembly. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery rail and ground, clamping surges within nanoseconds. Use Value: Limits voltage to ≤243 V during 100 A load dump events, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 100 pF at 0 V) placed at connector interface to suppress ±8 kV contact ESD. Use Value: Prevents latch-up or parametric shift in precision op-amps and ADC front-ends while maintaining signal integrity. |
| DC Bus Overvoltage Suppression | Telecom Power Supply Input Protection |
Use Scenario: Safeguarding 48 V telecom or industrial DC distribution buses against switching transients. IC Role / Device Role / Timing Role: High-power TVS mounted directly across input terminals of DC-DC converters or motor drivers. Use Value: Absorbs 600 W surge energy without degradation, sustaining repeated 10/1000 µs pulses at 0.01 % duty cycle. |
Use Scenario: Front-end protection for AC/DC adapters and PoE injectors exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device upstream of bridge rectifier and bulk capacitor. Use Value: Clamps induced line-to-ground surges to <243 V, protecting secondary-side controllers and isolation barriers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/52 | Same VWM (150 V), lower PPPM (600 W → 400 W), higher VC (243 V → 250 V), same SMB package. | Limited to lower-energy surges; not rated for AEC-Q101. | Select when cost sensitivity outweighs automotive qualification and full 600 W margin. |
| SMCJ150AHE3/52 | Same VWM/VBR, higher PPPM (1500 W), larger SMC (DO-214AB) package, same AEC-Q101. | Requires larger PCB footprint; suited for systems needing >600 W headroom. | Choose when surge threat level exceeds IEC 61000-4-5 Level 4 or includes multiple simultaneous transients. |
Compared with SMBJ150A-E3/52 and SMCJ150AHE3/52, the SMBG150AHE3/52 uniquely balances 600 W capability, AEC-Q101 qualification, and compact SMBG footprint - making it optimal for space-constrained automotive modules requiring certified surge resilience without layout redesign.
Availability
SMBG150AHE3/52 is available at Aetrix Electronics and suitable for automotive control units, industrial sensor nodes, and telecom power supply inputs requiring stable component supply, AEC-Q101 compliance, and repeatable 600 W surge performance.
Supply support for SMBG150AHE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMBG series was developed specifically for high-reliability surface-mount transient suppression in automotive and industrial environments, prioritizing AEC-Q101 qualification, low-profile packaging, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of SMBG150AHE3/52 and how is it measured?
The SMBG150AHE3/52 has a maximum clamping voltage (VC) of 243 V at a peak pulse current (IPPM) of 2.5 A, tested with a 10/1000 µs waveform per IEC 61000-4-5. This value is measured across the device terminals during surge conduction and represents the upper voltage limit imposed on protected circuitry - a key parameter for ensuring downstream ICs remain within absolute maximum ratings. The SMBG150AHE3/52 achieves this with low incremental resistance, minimizing overshoot during fast transients.
Is SMBG150AHE3/52 suitable for automotive applications?
Yes, SMBG150AHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its guaranteed operation from –55 °C to +150 °C junction temperature, validated HTRB and temperature cycling performance, and compliance with load-dump surge requirements (100 A, 8.3 ms) make it appropriate for engine control units, body electronics, and ADAS power rails. The HE3 suffix denotes AEC-Q101 qualification and RoHS compliance - confirmed in Vishay document 88456.
What does the "HE3/52" suffix mean in SMBG150AHE3/52?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification, while "/52" specifies packaging in 7-inch plastic tape-and-reel format with 750 units per reel. This ordering code aligns with Vishay's standardized nomenclature: HE3 = halogen-free, RoHS-compliant, AEC-Q101 qualified; /52 = 7″ reel, 750-piece quantity. The part is supplied with matte tin-plated leads meeting J-STD-002 solderability standards and JESD201 Class 2 whisker resistance.
How does SMBG150AHE3/52 differ from bidirectional TVS diodes like SMBG150CA?
The SMBG150AHE3/52 is unidirectional and features a cathode band for polarity-sensitive placement - it conducts only during reverse overvoltage (anode grounded, cathode to protected line). In contrast, SMBG150CA is bidirectional, symmetrical, and lacks polarity marking; it clamps in both directions, making it suitable for AC lines or differential data lines. The SMBG150AHE3/52 offers lower leakage at VWM and is preferred for DC power rail protection where polarity is fixed and forward conduction must be blocked.
What is the thermal resistance of SMBG150AHE3/52 and how does it affect layout design?
The SMBG150AHE3/52 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. This value assumes standard JEDEC test conditions and dictates minimum copper area required for reliable power dissipation. For sustained surge duty cycles or elevated ambient temperatures, increasing pad size or adding thermal vias reduces effective RθJA; derating curves in Figure 2 of Vishay document 88456 must be applied to ensure TJ stays ≤150 °C during operation.
SMBG150AHE3/52 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):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
SMBG150AHE3/52 FAQ
1.How can I place an order for SMBG150AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG150AHE3/52 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 SMBG150AHE3/52 reliable?
The price and inventory of SMBG150AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG150AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG150AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG150AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG150AHE3/52?
SMBG150AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG150AHE3/52 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 SMBG150AHE3/52?
For technical support, including SMBG150AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG150AHE3/52 requirements.
6.How does Aetrix verify that SMBG150AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG150AHE3/52 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 SMBG150AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG150AHE3/52?
All SMBG150AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG150AHE3/52, 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 SMBG150AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG150AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG150AHE3/52 Tags
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