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Vishay General Semiconductor - Diodes Division SMBG58CAHE3/52
- Part No.:
- SMBG58CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG58CAHE3/52.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,174
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Product details
Overview
SMBG58CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on signal or power lines. 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), <120 ns response time, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG58CAHE3/52 datasheet, SMBG58CAHE3/52 pinout, SMBG58CAHE3/52 application, or SMBG58CAHE3/52 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and RoHS-compliant AEC-Q101 qualified construction - all critical for ESD/surge protection design in harsh environments.
Technical Context
The SMBG58CAHE3/52 operates as a symmetrical, bidirectional avalanche diode with identical forward and reverse clamping characteristics. Its glass-passivated junction enables stable breakdown and low leakage (<1 µA at VWM), while the DO-215AA package supports automated SMT placement and meets UL 94 V-0 flammability rating.
It delivers 600 W surge capability under 10/1000 µs waveform with clamping voltage of 93.6 V at IPPM = 6.4 A, and exhibits low incremental surge resistance for effective energy diversion. Thermal performance is defined by RθJL = 20 °C/W (junction-to-lead) and derating above 25 °C per Fig. 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 64.4 V / 71.2 V at IT = 1 mA - ensures reliable avalanche initiation across production lot |
| VC @ IPPM | 93.6 V at 6.4 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 600 W - peak transient power handling capability under standardized surge waveform |
| IPPM | 6.4 A - maximum non-repetitive peak pulse current supported at rated clamping voltage |
| TJ Range | −55 °C to +150 °C - enables operation in under-hood automotive and industrial ambient conditions |
| Leakage @ VWM | <1 µA - minimal standby power loss and signal integrity impact in high-impedance circuits |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional device with no polarity marking; terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either direction) | One of two symmetrical terminals; bidirectional conduction allows same terminal to serve as anode or cathode depending on transient polarity |
| Cathode | Transient current exit (either direction) | Second symmetrical terminal; no physical marking distinguishes anode/cathode on SMBG58CAHE3/52 due to bidirectional construction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| 600 W peak pulse power | Robust suppression of ISO 7637-2 pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges without degradation |
| Low profile SMBG package | 0.255" × 0.155" footprint with 0.030" height enables dense PCB layouts and automated assembly |
| Glass passivated junction | Enhances long-term stability of VBR and reduces parameter drift under thermal stress or humidity |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail to clamp positive/negative spikes before they reach LDOs or microcontrollers. Use Value: Clamps to ≤93.6 V during 6.4 A surge, preventing overvoltage damage to downstream 5 V or 3.3 V logic while maintaining AEC-Q101 compliance. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to MCU ADC inputs in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential or single-ended signal lines to absorb ESD (IEC 61000-4-2) and inductive switching noise. Use Value: Sub-1 µA leakage preserves signal accuracy; fast response (<120 ns) prevents latch-up in precision front-end circuitry. |
| Telecom Data Line Surge Suppression | Consumer USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional TVS installed line-to-line and line-to-ground to limit common-mode and differential-mode transients. Use Value: Symmetrical VBR ensures equal clamping in both polarities; 600 W rating handles repetitive surges per ITU-T K.20/K.21. | Use Scenario: Adding secondary-level ESD protection on USB 2.0 D+/D− lines in set-top boxes or smart displays. IC Role / Device Role / Timing Role: Secondary TVS after integrated port protection, absorbing residual 8 kV contact discharge per IEC 61000-4-2. Use Value: 93.6 V clamping avoids violating USB voltage tolerance limits while supporting hot-plug robustness. |
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), but lower PPPM = 600 W (same rating), different package: SMB (DO-214AA), slightly larger footprint (0.295" × 0.230") | Less suitable for ultra-dense layouts; thermal resistance RθJA = 110 °C/W vs. 100 °C/W for SMBG | Select when legacy SMB footprint compatibility is required and board space permits. |
| SMCJ58CA | Same VWM and bidirectionality, but higher PPPM = 1500 W; larger SMC (DO-214AB) package (0.350" × 0.280") | Used where higher surge margin is needed (e.g., DC input rails), but incompatible with SMBG land pattern | Choose for enhanced ruggedness in primary power rail protection where layout allows larger device. |
Compared with SMBJ58CA and SMCJ58CA, the SMBG58CAHE3/52 offers optimal balance of 600 W surge capability, AEC-Q101 qualification, and compact DO-215AA footprint - making it preferred for space-constrained automotive and industrial modules requiring certified reliability.
Availability
SMBG58CAHE3/52 is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, telecom data line protection, and consumer USB port hardening requiring stable component supply and AEC-Q101 compliance.
Supply support for SMBG58CAHE3/52 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, industrial, and telecom systems - delivering AEC-Q101 qualified, low-profile TVS solutions with precise clamping and robust surge handling in the DO-215AA package.
FAQ
What is the clamping voltage of SMBG58CAHE3/52 at its rated peak pulse current?
The SMBG58CAHE3/52 has a maximum clamping voltage (VC) of 93.6 V at IPPM = 6.4 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings. The SMBG58CAHE3/52 achieves this with low incremental resistance and repeatable avalanche behavior.
Is SMBG58CAHE3/52 suitable for automotive applications?
Yes, SMBG58CAHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use per the Vishay datasheet (Document Number: 88456, Revision: 09-Jan-2024). Its −55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and validation across temperature cycling, HTRB, and ESD tests confirm suitability for engine control units, body electronics, and ADAS sensor modules. The SMBG58CAHE3/52 meets requirements for ISO 16750-2 load dump and ISO 7637-2 transient immunity.
Does SMBG58CAHE3/52 have polarity markings on the package?
No, SMBG58CAHE3/52 does not have polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMBG58A), the CA suffix indicates symmetrical breakdown in both directions, eliminating the need for cathode band identification. The SMBG58CAHE3/52 functions identically regardless of orientation on the PCB - simplifying layout and reducing assembly errors in differential or AC-coupled protection schemes.
What is the thermal resistance of SMBG58CAHE3/52, and how does it affect PCB layout?
The SMBG58CAHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. This value assumes minimum recommended pad layout per the datasheet; reducing pad area increases thermal impedance and risks exceeding TJ(max) = 150 °C during repeated surges. For sustained reliability, maintain full copper exposure under both terminals and avoid thermal isolation - the SMBG58CAHE3/52 depends on PCB copper for heat dissipation during transient events.
How does SMBG58CAHE3/52 differ from unidirectional SMBG58A?
The SMBG58CAHE3/52 is bidirectional with symmetrical VBR (64.4–71.2 V) in both polarities and no cathode marking, whereas SMBG58A is unidirectional with a defined cathode band and only conducts avalanche in reverse bias. SMBG58CAHE3/52 supports AC signal line or floating bus protection (e.g., RS-485, CAN FD), while SMBG58A suits DC rails where polarity is fixed. Both share identical VWM, PPPM, and package, but SMBG58CAHE3/52 adds ±93.6 V clamping symmetry essential for bidirectional interfaces.
SMBG58CAHE3/52 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:
- -
- 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)
SMBG58CAHE3/52 FAQ
1.How can I place an order for SMBG58CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG58CAHE3/52 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 SMBG58CAHE3/52 reliable?
The price and inventory of SMBG58CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG58CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG58CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG58CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG58CAHE3/52?
SMBG58CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG58CAHE3/52 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 SMBG58CAHE3/52?
For technical support, including SMBG58CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG58CAHE3/52 requirements.
6.How does Aetrix verify that SMBG58CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG58CAHE3/52 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 SMBG58CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG58CAHE3/52?
All SMBG58CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG58CAHE3/52, 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 SMBG58CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG58CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG58CAHE3/52 Tags
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