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Vishay General Semiconductor - Diodes Division SMBG24HE3/52
- Part No.:
- SMBG24HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG24HE3/52.pdf
- Description:
- TVS DIODE 24VWM 43VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,586
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Product details
Overview
SMBG24HE3/52 from Vishay General Semiconductor is a uni-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for robust overvoltage protection of sensitive electronics. It features a 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR) at 1 mA, 38.9 V clamping voltage (VC) at 15.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs.
For engineers reviewing the SMBG24HE3/52 datasheet, SMBG24HE3/52 pinout, SMBG24HE3/52 application, or SMBG24HE3/52 equivalent, key selection considerations include its AEC-Q101 qualification, 150 °C maximum junction temperature, low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly and high-reliability automotive environments.
Technical Context
This device operates as a uni-directional avalanche diode, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and stable clamping under repetitive transients. Its electrical behavior follows IEEE C62.35 standards, with VBR specified at 1 mA test current and clamping verified at IPPM = 15.4 A using standardized 10/1000 µs surge waveform.
Thermal performance is defined by RθJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads) and RθJL = 20 °C/W, enabling reliable operation up to TJ = 150 °C. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - critical for under-hood automotive applications subject to thermal cycling and vibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before leakage exceeds 1.0 µA; sets safe working margin below system rail. |
| VBR (min/max) | 26.7 V / 29.5 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during ESD or load-dump events. |
| VC @ IPPM | 38.9 V at 15.4 A - Clamped voltage during 600 W transient; protects downstream 3.3 V/5 V logic from overshoot exceeding 1.6× VWM. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; supports automotive ISO 7637-2 Pulse 1/2/5a compliance testing. |
| TJ max. | +150 °C - Enables placement near heat sources (e.g., power MOSFETs) without derating in engine control modules. |
| Package | DO-215AA (SMBG) - Surface-mount outline with 0.235" × 0.255" footprint; compatible with standard 7" tape-and-reel (52 code) for high-volume SMT lines. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock per JEDEC standards. |
Pinout & Package
DO-215AA (SMBG) package: surface-mount gull-wing leaded case with cathode band marking on one end. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet MSL Level 1 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge (IFSM = 100 A, 8.3 ms half-sine). |
| Cathode | Avalanche clamping terminal | Marked with band; connected to protected line (e.g., 24 V supply or CAN bus); initiates clamping when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles ISO 7637-2 Pulse 5a (load dump) surges up to 60 V/100 ms without failure when mounted per recommended pad layout. |
| AEC-Q101 qualification | Validated for automotive under-hood use - includes 1000-cycle temperature cycling (-40 °C to +125 °C) and 1000-hr HTRB at 150 °C. |
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and low leakage (<1.0 µA at VWM) across lifetime and temperature extremes. |
| Low incremental surge resistance | Minimizes VC – VBR differential (≤12.2 V), reducing stress on downstream TVS stages or IC input protection networks. |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance - eliminates tin whisker risk in long-life automotive modules (>15 years). |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Guarding |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against ISO 7637-2 load dump transients (up to 60 V, 400 ms). IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point, shunting surge energy to chassis ground before reaching DC-DC converters or microcontrollers. Use Value: Limits clamped voltage to 38.9 V - well below 42 V absolute maximum rating of typical 24 V-rated power management ICs, preventing latch-up or gate oxide damage. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and inductive switching noise in factory automation sensors. IC Role / Device Role / Timing Role: Uni-directional TVS placed between signal line and local ground plane, with fast <1 ns response capturing sub-microsecond ESD events per IEC 61000-4-2 Level 4. Use Value: Maintains signal integrity with <1.0 µA leakage at 24 V, avoiding offset errors in precision current-sense amplifiers while surviving 30 kV air discharge. |
| Telecom DC Feeder Protection | Consumer Appliance Motor Drive Suppression |
Use Scenario: Safeguarding -48 V DC power feeds in telecom base station remote radio units exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage protector on feed line input, coordinated with upstream gas discharge tube (GDT) to handle multi-kA surges while limiting let-through voltage to secondary TVS stage. Use Value: 600 W rating enables coordination with GDTs having >100 ns response, ensuring SMBG24HE3/52 activates before downstream silicon fails under combined lightning + switching transients. |
Use Scenario: Suppressing flyback voltage spikes from brushed DC motors in smart home appliances (e.g., washing machine drum drives). IC Role / Device Role / Timing Role: Mounted across motor terminals in uni-directional configuration, conducting reverse surge energy into bulk capacitor during commutation. Use Value: Withstands 100 A non-repetitive forward surge (IFSM), absorbing energy from 250 mH inductive loads switched at 100 Hz without degradation over 10,000 cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24AHE3/52 | Same DO-215AB (SMB) package, identical VWM/VBR/VC, but rated for 600 W with tighter VBR tolerance (5 % vs. SMBG series' 10 %). | Preferred where tighter clamping consistency is required across production lots, e.g., safety-critical brake controller modules. | Select SMBJ24AHE3/52 if board layout allows SMB footprint and tighter VBR spec is mandated by functional safety analysis. |
| 1.5SMC24AH | DO-214AB (SMC) package - larger footprint (0.315" × 0.260"), higher thermal mass, same 24 V VWM but 43.5 V VC at 13.8 A. | Better suited for high-energy industrial motor drives where PCB space permits and higher clamping voltage is acceptable. | Choose 1.5SMC24AH only when thermal dissipation demands exceed SMBG's RθJA = 100 °C/W, such as in enclosed enclosures without forced airflow. |
Compared with SMBJ24AHE3/52 and 1.5SMC24AH, SMBG24HE3/52 offers optimal balance of AEC-Q101 reliability, compact DO-215AA footprint, and proven 600 W surge handling in constrained automotive PCBs - making it the default choice for new 24 V ECU designs where space and qualification are primary constraints.
Availability
SMBG24HE3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor guarding, and telecom DC feeder applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG24HE3/52 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMBG series was engineered specifically for AEC-Q101-compliant transient suppression in space-constrained automotive modules, emphasizing low-profile packaging, repeatable clamping, and extended temperature survivability.
FAQ
What is the clamping voltage of SMBG24HE3/52 and how is it measured?
The SMBG24HE3/52 has a maximum clamping voltage (VC) of 38.9 V at 15.4 A peak pulse current (IPPM), tested with a standardized 10/1000 µs double-exponential waveform per ANSI/IEEE C62.35. This value represents the upper limit of voltage seen by protected circuitry during a 600 W transient event - critical for verifying compatibility with downstream IC absolute maximum ratings. The SMBG24HE3/52 achieves this clamping performance while maintaining low incremental surge resistance.
Is SMBG24HE3/52 suitable for automotive applications?
Yes, SMBG24HE3/52 is explicitly AEC-Q101 qualified, with validation across temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock tests. Its DO-215AA package, matte tin-plated leads, and 150 °C maximum junction temperature make it suitable for under-hood engine control units, body control modules, and ADAS camera power supplies. The HE3 suffix confirms compliance with JESD 201 Class 2 whisker resistance - a mandatory requirement for automotive longevity.
What does the "HE3" suffix mean in SMBG24HE3/52?
The "HE3" suffix in SMBG24HE3/52 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike the commercial "E3" variant, HE3 devices undergo additional stress screening for automotive use, including extended high-temperature life testing and enhanced plating adhesion. This suffix is tied directly to the part's qualification status - not just material compliance - and is required for OEM automotive BOM acceptance.
How does SMBG24HE3/52 differ from SMBJ24AHE3/52?
SMBG24HE3/52 and SMBJ24AHE3/52 share identical electrical specs (VWM = 24 V, VC = 38.9 V, PPPM = 600 W) and AEC-Q101 qualification, but differ in package: SMBG uses DO-215AA (smaller 0.235" × 0.255" footprint), while SMBJ uses DO-214AB (SMB, slightly larger). The SMBG24HE3/52 also has a wider VBR tolerance (10 %) versus SMBJ24AHE3/52's 5 %. Layout and qualification requirements drive the choice - SMBG24HE3/52 fits tighter automotive layouts; SMBJ24AHE3/52 suits designs needing tighter clamping consistency.
What is the maximum operating temperature for SMBG24HE3/52?
The SMBG24HE3/52 has a maximum operating junction temperature (TJ) of +150 °C, verified per AEC-Q101 stress testing. This allows direct placement near heat-generating components like power MOSFETs or DC-DC inductors in automotive ECUs. Derating begins above 25 °C ambient per Figure 2 in the datasheet, with usable power dissipation maintained up to 125 °C ambient when mounted on 5.0 mm × 5.0 mm copper pads - a key design parameter for SMBG24HE3/52 in thermally demanding environments.
SMBG24HE3/52 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 14A
- 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)
SMBG24HE3/52 FAQ
1.How can I place an order for SMBG24HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG24HE3/52 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 SMBG24HE3/52 reliable?
The price and inventory of SMBG24HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG24HE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG24HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG24HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG24HE3/52?
SMBG24HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG24HE3/52 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 SMBG24HE3/52?
For technical support, including SMBG24HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG24HE3/52 requirements.
6.How does Aetrix verify that SMBG24HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG24HE3/52 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 SMBG24HE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG24HE3/52?
All SMBG24HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG24HE3/52, 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 SMBG24HE3/52 part is unused and in its original packaging.
Return procedure for SMBG24HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG24HE3/52 Tags
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