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Vishay General Semiconductor - Diodes Division SMBG58CAHE3/5B
- Part No.:
- SMBG58CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG58CAHE3/5B.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,987
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Product details
Overview
SMBG58CAHE3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), clamping voltage of 93.6 V at 6.4 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG58CAHE3/5B datasheet, SMBG58CAHE3/5B pinout, SMBG58CAHE3/5B application, or SMBG58CAHE3/5B equivalent, this device is selected for high-energy surge suppression in automotive power lines, industrial sensor interfaces, and telecom signal conditioning where bidirectional clamping, low leakage (<1 µA at VWM), and MSL Level 1 reflow compatibility are critical.
Technical Context
The SMBG58CAHE3/5B operates as a symmetrical avalanche diode with identical forward and reverse breakdown characteristics, enabling bidirectional transient suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, supporting fast response to ESD and lightning-induced surges.
Thermally, it delivers 100 °C/W junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm copper pads and sustains operation from –55 °C to +150 °C junction temperature. The device meets UL 497B recognition and complies with JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - Ensures reliable, repeatable avalanche initiation across production lots and temperature. |
| VC @ IPPM | 93.6 V at 6.4 A - Clamped voltage during 600 W transient; determines maximum stress imposed on downstream ICs. |
| ID @ VWM | <1 µA - Ultra-low leakage preserves signal integrity and battery life in always-on sensor or CAN bus nodes. |
| PPPM | 600 W (10/1000 µs) - Sustains high-energy transients common in automotive load-dump and industrial motor switching. |
| TJ max | +150 °C - Enables placement near heat sources (e.g., power converters) without derating concerns. |
| Qualification | AEC-Q101 qualified - Validated for automotive under-hood and chassis applications per stress test requirements. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. No polarity marking - bidirectional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals function identically; surge current flows bidirectionally through the same junction structure. |
| Case (body) | Thermal and mechanical interface | Non-electrical; provides mechanical anchoring and conduction path to PCB copper for thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN FD, Ethernet PHY) without external polarity management. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when mounted per recommended 5.0 mm × 5.0 mm pad layout. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body control, and ADAS modules subject to extended temperature cycling and humidity exposure. |
| MSL Level 1 (260 °C) | Supports lead-free reflow assembly without pre-baking; compatible with standard SMT production lines. |
| Glass-passivated junction | Ensures long-term parameter stability and low leakage drift over 15+ years in industrial environments. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceivers and microcontroller I/O pins from load dump and jump-start transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Primary clamping element placed at connector entry point to shunt >100 A surge currents away from signal conditioning ICs. Use Value: Limits voltage seen by protected ICs to ≤93.6 V during 600 W transients, preventing latch-up and gate oxide damage. | Use Scenario: Safeguarding analog front-ends of pressure, temperature, and current sensors exposed to EMI and switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential sensor inputs (e.g., 4–20 mA loop, RTD bridges) to clamp both polarities of induced spikes. Use Value: Maintains signal fidelity with <1 µA leakage at 58 V, avoiding DC offset errors while responding in <1 ns to fast transients. |
| Telecom Signal Conditioning | Consumer USB/Type-C Port Protection |
Use Scenario: Shielding Ethernet PHYs, DSL line drivers, and PoE injectors against lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after primary gas discharge tube (GDT), providing precise low-clamp backup protection. Use Value: Clamps residual surges to 93.6 V within nanoseconds, ensuring compliance with ITU-T K.21 basic protection level. | Use Scenario: Protecting USB 3.2 Gen 2 and USB-C CC/DP lanes from ESD (IEC 61000-4-2 ±15 kV contact) and hot-swap voltage overshoot. IC Role / Device Role / Timing Role: Low-capacitance (typ. 100 pF at 0 V) bidirectional suppressor placed directly at port connector to minimize stub length. Use Value: Provides sub-1 ns response with no polarity dependency-critical for full-duplex high-speed data lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA | Same VWM (58 V), lower PPPM (600 W vs. SMBJ's 400 W), identical SMB package and bidirectional configuration. | Less robust against repeated high-energy surges; suitable only where IEC 61000-4-5 test levels are ≤Level 3. | Select SMBG58CAHE3/5B when sustained 600 W capability and AEC-Q101 qualification are mandatory. |
| SMCJ58CA | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VWM and VBR range, also AEC-Q101 qualified. | Requires more PCB area and higher mounting mass; better suited for main power rail protection than signal-level lines. | Choose SMBG58CAHE3/5B for space-constrained layouts where 600 W suffices and low profile is essential. |
Compared with SMBJ58CA and SMCJ58CA, the SMBG58CAHE3/5B uniquely balances 600 W surge handling, AEC-Q101 validation, and SMBG's compact footprint-making it optimal for automotive infotainment head units, industrial fieldbus nodes, and telecom edge devices where board space and qualification rigor are jointly constrained.
Availability
SMBG58CAHE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG58CAHE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and automotive-grade qualification.
The SMBG series was engineered specifically for high-reliability transient suppression in space-constrained, thermally demanding environments-targeting automotive, industrial, and telecom applications where failure is not an option.
FAQ
What is the clamping voltage of SMBG58CAHE3/5B and how is it measured?
The SMBG58CAHE3/5B has a maximum clamping voltage (VC) of 93.6 V, measured at a peak pulse current (IPPM) of 6.4 A using a standardized 10/1000 µs waveform. This value reflects the actual voltage imposed on protected circuitry during worst-case surge events and is guaranteed across the full operating temperature range (–55 °C to +150 °C). The SMBG58CAHE3/5B achieves this with low incremental resistance, ensuring predictable, repeatable protection behavior.
Is SMBG58CAHE3/5B suitable for automotive applications?
Yes, SMBG58CAHE3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and chassis-mounted modules. Its construction-glass-passivated junction, matte tin-plated leads, MSL Level 1 reflow compatibility, and –55 °C to +150 °C operating range-meets stringent automotive reliability requirements. The SMBG58CAHE3/5B is commonly deployed in LIN/CAN networks, body control units, and ADAS sensor interfaces where transient immunity is mission-critical.
How does the bidirectional design of SMBG58CAHE3/5B affect its circuit implementation?
The SMBG58CAHE3/5B has no polarity marking and identical electrical characteristics in both directions, eliminating the need for orientation verification during placement and simplifying layout for AC-coupled or floating signals. This symmetry allows direct integration across differential pairs (e.g., RS-485, CAN FD), antenna feeds, or ungrounded sensor outputs without risk of reverse connection. The SMBG58CAHE3/5B thus reduces BOM count and assembly error rates in complex mixed-signal systems.
What is the leakage current specification for SMBG58CAHE3/5B at its stand-off voltage?
At its 58 V stand-off voltage (VWM), the SMBG58CAHE3/5B exhibits a maximum reverse leakage current (ID) of 1 µA at 25 °C, rising to ≤5 µA at +125 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor circuits and extends battery life in always-on automotive modules. The SMBG58CAHE3/5B maintains this performance due to its glass-passivated junction and tight process control, verified across 100 % production testing.
Does SMBG58CAHE3/5B require special PCB layout considerations?
Yes-the SMBG58CAHE3/5B achieves its rated 600 W pulse power only when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal, per Vishay's thermal guidelines. Smaller pads increase thermal resistance and reduce surge capability. Additionally, keep trace lengths to the protected node as short as possible (<5 mm) to minimize inductance that could elevate clamping voltage. The SMBG58CAHE3/5B's low-profile SMBG package supports automated placement but demands strict adherence to these layout rules for full specification compliance.
SMBG58CAHE3/5B 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
SMBG58CAHE3/5B FAQ
1.How can I place an order for SMBG58CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG58CAHE3/5B 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 SMBG58CAHE3/5B reliable?
The price and inventory of SMBG58CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG58CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG58CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG58CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG58CAHE3/5B?
SMBG58CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG58CAHE3/5B 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 SMBG58CAHE3/5B?
For technical support, including SMBG58CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG58CAHE3/5B requirements.
6.How does Aetrix verify that SMBG58CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG58CAHE3/5B 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 SMBG58CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG58CAHE3/5B?
All SMBG58CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG58CAHE3/5B, 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 SMBG58CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBG58CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG58CAHE3/5B Tags
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