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Vishay General Semiconductor - Diodes Division SMBG58AHE3/52
- Part No.:
- SMBG58AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG58AHE3/52.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,970
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Product details
Overview
SMBG58AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 93.6 V maximum clamping voltage (VC) at 6.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive ECUs, industrial sensor interfaces, and power supply input stages.
For engineers reviewing the SMBG58AHE3/52 datasheet, SMBG58AHE3/52 pinout, SMBG58AHE3/52 application, or SMBG58AHE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and package mechanical dimensions per DO-215AA - all critical for ESD/surge co-design and layout validation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1 μA leakage at 58 V), then rapidly avalanches below 71.2 V to clamp transients. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance, enabling repeatable clamping performance across surge events.
The device is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports automated SMT placement, and meets J-STD-020 MSL Level 1 (peak reflow 260 °C). Its cathode-band polarity marking and matte tin-plated leads comply with JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 64.4 V / 71.2 V at IT = 1 mA - guaranteed avalanche onset range for reliable triggering |
| VC @ IPPM | 93.6 V at 6.4 A - clamped voltage during 600 W transient, defining protected circuit's max stress |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform, duty cycle ≤ 0.01 % |
| IFSM | 100 A - surge current tolerance for 8.3 ms half-sine, critical for load-dump immunity |
| TJ range | −55 °C to +150 °C - full automotive-grade junction temperature operation |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on 5.0 mm × 5.0 mm copper pads |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing lead frame with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); terminals are matte tin-plated for J-STD-002 compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; conducts during reverse transient |
| Cathode | Forward current exit / transient sink | Marked by band; tied to higher-potential rail (e.g., VCC) to shunt surges to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including engine control, body electronics, and ADAS sensors |
| Glass passivated junction | Ensures stable VBR over time and temperature, minimizing parameter drift in harsh environments |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges without degradation |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns (peak 260 °C) |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage exposure to downstream ICs - e.g., protects 75 V-rated MOSFET gates |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs against load dump and jump-start transients in vehicle body control modules. IC Role / Device Role / Timing Role: Shunt clamping element placed between VBAT and GND, triggered within <1 ns to limit voltage to ≤93.6 V. Use Value: Prevents latch-up or gate oxide rupture in 5 V/3.3 V LDOs and MCU power domains during 120 V/500 ms load dump events. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) in factory automation pressure transmitters exposed to relay coil flyback. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; SMBG58AHE3/52 serves unidirectional rail-to-rail clamping on supply side only. Use Value: Limits induced spikes to <94 V, preserving ±15 V op-amp input stage integrity and avoiding ADC saturation or reset. |
| DC-DC Converter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Front-end protection for 48 V input buck converters in PoE-powered network switches subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient suppressor upstream of input filter capacitor, absorbing energy before reaching controller IC. Use Value: Clamps 1 kV/0.5 J surges to 93.6 V, reducing required input capacitor derating and enabling smaller magnetics. | Use Scenario: Secondary-level protection on -48 V telecom power feeds entering base station line cards, complementing primary gas discharge tube (GDT) stages. IC Role / Device Role / Timing Role: Fast-response secondary clamp that activates after GDT crowbar, handling residual fast-rising edges. Use Value: Provides sub-100 V clamping with <1 ns response, preventing damage to hot-swap controllers and PMICs rated for 100 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A-E3/52 | Same VWM (58 V), identical SMB (DO-214AA) package but 6.5 mm × 3.5 mm footprint; RθJA = 110 °C/W vs. 100 °C/W | Slightly larger pad area required; lower power density than SMBG; less suitable for ultra-dense layouts | Select SMBJ58A-E3/52 only if legacy board uses SMB footprint or when higher surge margin (IPPM = 6.5 A) is prioritized over thermal efficiency |
| SMCJ58AHE3/52 | Same VWM and VC, but SMC (DO-214AB) package: 7.1 mm × 6.2 mm, 1500 W PPPM, RθJA = 50 °C/W | Higher power handling and better thermal dissipation, but requires 3× PCB area and heavier copper | Choose SMCJ58AHE3/52 for high-reliability 24 V/48 V systems where sustained surge repetition or elevated ambient temperatures exceed SMBG limits |
Compared with SMBJ58A-E3/52 and SMCJ58AHE3/52, SMBG58AHE3/52 delivers optimal balance of compact size (4.6 mm × 3.9 mm), automotive qualification, and thermal performance (100 °C/W) - making it preferred for space-constrained, thermally managed automotive and industrial modules requiring AEC-Q101 compliance.
Availability
SMBG58AHE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning circuits, and telecom power feed protection requiring stable component supply, AEC-Q101 assurance, and consistent surge immunity performance.
Supply support for SMBG58AHE3/52 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, TVS devices, and optoelectronics with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMBG series was engineered specifically for surface-mount transient suppression in space-constrained, high-reliability applications - combining AEC-Q101 qualification, low-profile packaging, and precise clamping performance for modern automotive and industrial electronics.
FAQ
What is the maximum clamping voltage of SMBG58AHE3/52 and under what test condition?
The SMBG58AHE3/52 has a maximum clamping voltage (VC) of 93.6 V, measured at a peak pulse current (IPPM) of 6.4 A using the standardized 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is guaranteed across the full operating temperature range.
Is SMBG58AHE3/52 qualified for automotive applications?
Yes, SMBG58AHE3/52 is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3". This qualification validates its reliability for use in automotive environments, including under-hood applications subject to extended temperature cycling, humidity, and mechanical shock per AEC-Q101 test requirements.
What does the "HE3" suffix indicate in SMBG58AHE3/52?
The "HE3" suffix in SMBG58AHE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification and industrial-grade reliability. It distinguishes this variant from standard "E3" (RoHS, non-automotive) and "HM3" (halogen-free + AEC-Q101) versions - confirming suitability for automotive electronics where both regulatory compliance and stress testing are mandatory.
How does SMBG58AHE3/52 differ from bidirectional TVS diodes like SMBG58CA?
SMBG58AHE3/52 is unidirectional and functions as a polarized clamp between positive rail and ground, while SMBG58CA is bidirectional and symmetrically clamps both positive and negative transients. The unidirectional SMBG58AHE3/52 offers lower leakage (<1 μA at 58 V) and higher surge current capability in one polarity, making it ideal for DC power line protection where polarity is fixed.
What is the thermal resistance (RθJA) of SMBG58AHE3/52 and how is it measured?
The SMBG58AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, measured with the device mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal on FR-4 PCB. This value assumes standard JEDEC high-K board conditions and is critical for calculating junction temperature rise under sustained surge duty cycles.
SMBG58AHE3/52 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):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 6.4A
- 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)
SMBG58AHE3/52 FAQ
1.How can I place an order for SMBG58AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG58AHE3/52 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 SMBG58AHE3/52 reliable?
The price and inventory of SMBG58AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG58AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG58AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG58AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG58AHE3/52?
SMBG58AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG58AHE3/52 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 SMBG58AHE3/52?
For technical support, including SMBG58AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG58AHE3/52 requirements.
6.How does Aetrix verify that SMBG58AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG58AHE3/52 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 SMBG58AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG58AHE3/52?
All SMBG58AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG58AHE3/52, 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 SMBG58AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG58AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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