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Vishay General Semiconductor - Diodes Division SMBJ58CAHE3_A/I
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- Part No.:
- SMBJ58CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58CAHE3_A/I.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,449
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Product details
Overview
SMBJ58CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 58 V standoff voltage (VWM), 64.4–71.2 V breakdown range (VBR at 1 mA), 93.6 V maximum clamping voltage (VC) at 6.4 A peak pulse current, and 600 W peak pulse power (10/1000 µs waveform). It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the SMBJ58CAHE3_A/I datasheet, SMBJ58CAHE3_A/I pinout, SMBJ58CAHE3_A/I application, or SMBJ58CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, 93.6 V clamping voltage at 6.4 A, AEC-Q101 qualification status, SMB package thermal resistance (RθJA = 100 °C/W), and compliance with UL 497B surge protector classification.
Technical Context
This device operates as a voltage-clamping protection element in parallel with sensitive circuit nodes. Its bidirectional architecture enables symmetrical transient suppression across both polarities without polarity dependence, making it suitable for AC-coupled or floating signal paths. The glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 58 V).
It delivers 600 W peak pulse power handling per 10/1000 µs waveform with <1 ps response time, low incremental surge resistance, and meets MSL Level 1 per J-STD-020 (260 °C reflow peak). Thermal performance is defined by RθJA = 100 °C/W and RθJL = 20 °C/W, supporting reliable operation up to TJ = +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 58 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 64.4–71.2 V at 1 mA - Confirmed breakdown range ensuring predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 93.6 V at IPPM = 6.4 A - Peak voltage seen by protected circuit during 600 W transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 µs) - Surge energy absorption capacity under standardized lightning/surge test conditions. |
| IPPM (Peak Pulse Current) | 6.4 A - Maximum non-repetitive surge current the device safely conducts while maintaining VC ≤ 93.6 V. |
| TJmax | +150 °C - Maximum junction temperature enabling use in under-hood automotive and high-ambient industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 × 3.94 × 2.20 mm (L × W × H), matte tin-plated leads, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional clamping | Connected to line being protected; forms symmetrical clamp path with cathode during either polarity surge. |
| Cathode | Current exit terminal in forward bias; common node in bidirectional clamping | Connected to reference (e.g., ground or rail); completes low-impedance shunt path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating buses without polarity constraints or external diode pairing. |
| 600 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive interfaces. |
| AEC-Q101 qualification | Validates long-term reliability in automotive powertrain and body electronics applications subject to thermal cycling and vibration. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes voltage overshoot during transients, reducing stress on 60–70 V-rated downstream components. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow assembly without pre-baking, reducing manufacturing complexity and cost. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Suppressing load-dump and jump-start transients on 12 V battery-fed ECUs and lighting modules. IC Role / Device Role / Timing Role: Parallel-connected voltage clamp that diverts surge current away from LDOs, microcontrollers, and CAN transceivers. Use Value: Limits transient voltage to ≤93.6 V, preventing damage to 60 V-rated input stages and meeting ISO 7637-2 Pulse 5a requirements. |
Use Scenario: Protecting analog outputs (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional shunt element placed across sensor output and return, clamping ESD and inductive switching spikes. Use Value: Maintains signal integrity with <1 µA leakage at 58 V and responds within picoseconds to sub-100 ns ESD events per IEC 61000-4-2. |
| Telecom DC Power Input Protection | Consumer Device USB/Type-C Port Protection |
|
Use Scenario: Safeguarding PoE-powered switches and base station RF modules against lightning-induced surges on 48 V DC inputs. IC Role / Device Role / Timing Role: Primary-level TVS in series with fuse and secondary filtering, absorbing bulk surge energy before downstream converters. Use Value: Handles 600 W pulses without degradation, enabling robust front-end protection compliant with ITU-T K.20/21/44 standards. |
Use Scenario: Clamping fast-rising ESD events on USB data lines and VBUS in smartphones, tablets, and docking stations. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed directly at connector, minimizing trace inductance impact on clamping speed. Use Value: Sub-100 ps response ensures clamping occurs before ESD pulse propagates into PHY ICs, preserving USB 2.0/3.x signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CAHM3_A/I | Halogen-free, RoHS-compliant, AEC-Q101 qualified - identical electrical specs and package; differs only in material composition. | No functional difference; selected when halogen-free compliance is mandated by OEM environmental policy. | Choose SMBJ58CAHM3_A/I if halogen-free materials are required; otherwise SMBJ58CAHE3_A/I satisfies standard RoHS and automotive qualification. |
| SMAJ58CAHE3_A/I | Same VWM, VBR, VC, but lower PPPM = 400 W (SMA package); RθJA = 140 °C/W vs. 100 °C/W. | Lower surge rating and higher thermal resistance limit use to less severe transients or lower ambient temperatures. | Select SMAJ58CAHE3_A/I only where space constraints prohibit SMB footprint and surge energy remains ≤400 W. |
Compared with SMBJ58CAHE3_A/I, SMBJ58CAHM3_A/I offers identical protection performance with halogen-free construction, while SMAJ58CAHE3_A/I trades 33 % lower surge power and reduced thermal capability for smaller PCB area - requiring derating in high-temperature or high-energy environments.
Availability
SMBJ58CAHE3_A/I is available at Aetrix Electronics and suitable for automotive power supply protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBJ58CAHE3_A/I 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 SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 validation, and precise clamping performance are critical.
FAQ
What is the clamping voltage of SMBJ58CAHE3_A/I at its rated peak pulse current?
The SMBJ58CAHE3_A/I has a maximum clamping voltage (VC) of 93.6 V at its specified peak pulse current (IPPM) of 6.4 A under a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ58CAHE3_A/I maintains this clamping performance across its qualified operating temperature range and is validated per AEC-Q101 for automotive use.
Is SMBJ58CAHE3_A/I suitable for automotive applications?
Yes, SMBJ58CAHE3_A/I is AEC-Q101 qualified and specifically designed for automotive applications including engine control units, body electronics, and infotainment power supplies. Its bidirectional architecture, 150 °C maximum junction temperature, and validation against temperature cycling, HTRB, and ESD ensure reliability in under-hood and cabin environments. The SMBJ58CAHE3_A/I meets ISO 7637-2 Pulse 5a requirements when applied with appropriate layout and upstream impedance.
How does the bidirectional design of SMBJ58CAHE3_A/I affect its circuit placement?
The bidirectional design of SMBJ58CAHE3_A/I eliminates polarity sensitivity, allowing placement across any two nodes without regard to voltage polarity - ideal for AC-coupled lines, differential pairs, or floating references. Unlike unidirectional TVS diodes, SMBJ58CAHE3_A/I requires no cathode band orientation check during placement, simplifying automated assembly and reducing risk of misorientation-related field failures.
What is the thermal resistance of SMBJ58CAHE3_A/I, and how does it impact board layout?
SMBJ58CAHE3_A/I 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 minimum recommended pad layout per Vishay's datasheet; reducing pad size or omitting thermal vias increases RθJA, potentially limiting sustained power dissipation. For SMBJ58CAHE3_A/I, adequate copper area is essential to maintain TJ ≤ 150 °C during repetitive surge events.
Does SMBJ58CAHE3_A/I meet UL recognition requirements?
Yes, SMBJ58CAHE3_A/I is Underwriters Laboratories (UL) recognized under file E136766 for both unidirectional and bidirectional transient suppressors per UL 497B, covering classification as a protector for telecommunications and signaling circuits. This recognition applies to the entire SMBJ family, including SMBJ58CAHE3_A/I, and supports safety certification of end equipment in North America and other UL-aligned markets.
SMBJ58CAHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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 (SMBJ)
SMBJ58CAHE3_A/I FAQ
1.How can I place an order for SMBJ58CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58CAHE3_A/I 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 SMBJ58CAHE3_A/I reliable?
The price and inventory of SMBJ58CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ58CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58CAHE3_A/I?
SMBJ58CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58CAHE3_A/I 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 SMBJ58CAHE3_A/I?
For technical support, including SMBJ58CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58CAHE3_A/I requirements.
6.How does Aetrix verify that SMBJ58CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ58CAHE3_A/I 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 SMBJ58CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ58CAHE3_A/I?
All SMBJ58CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58CAHE3_A/I, 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 SMBJ58CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ58CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58CAHE3_A/I Tags
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