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Vishay General Semiconductor - Diodes Division SMBJ58CA-E3/5B
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- Part No.:
- SMBJ58CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58CA-E3/5B.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,609
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Product details
Overview
SMBJ58CA-E3/5B 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 and 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), and clamps to ≤93.6 V at 6.4 A peak pulse current - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ58CA-E3/5B datasheet, SMBJ58CA-E3/5B pinout, SMBJ58CA-E3/5B application, or SMBJ58CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, 93.6 V maximum clamping voltage at rated surge current, RoHS-compliant matte tin terminations, and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance enables consistent clamping under repetitive 10/1000 µs transients at 0.01% duty cycle.
The device is rated for TJ = −55 °C to +150 °C operation and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable power dissipation up to 5.0 W at 50 °C ambient on infinite heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - Confirmed breakdown threshold range defining turn-on consistency |
| VC @ IPPM | ≤93.6 V at 6.4 A - Clamped voltage during 600 W transient, directly limiting downstream IC stress |
| PPPM | 600 W (10/1000 µs) - Peak surge power handling capacity under standardized lightning/surge waveform |
| IPPM | 6.4 A - Peak pulse current corresponding to 600 W rating, used for PCB trace sizing |
| Leakage @ VWM | ≤1.0 µA - Minimal standby current draw, critical for low-power sensor and battery-backed circuits |
| TJ max. | +150 °C - Maximum junction temperature enabling use in high-ambient industrial environments |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Accepts surge current from either direction; connects to protected line |
| Cathode | Transient current exit (bidirectional) | Completes clamping path to ground or reference rail; no band marking |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when mounted on 5 mm × 5 mm copper pads |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage exposure to downstream MOSFETs or interface ICs during fast transients |
| MSL Level 1 rating | Supports standard reflow profiles up to 260 °C peak without preconditioning or dry-pack requirements |
| RoHS-compliant, matte tin terminations | Ensures solderability and long-term intermetallic stability in high-reliability industrial assemblies |
Applications
| Industrial Sensor Interface | Telecom Line Protection |
|---|---|
Use Scenario: Protecting analog output (4–20 mA) and digital I/O lines of pressure/temperature sensors exposed to motor switching noise and ESD. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground to clamp ±kV transients before they reach ADC or isolator inputs. Use Value: Limits induced voltage to ≤93.6 V, preventing latch-up or gate oxide damage in connected signal-conditioning ICs. | Use Scenario: Shielding RS-485/RS-232 data lines in base station backhaul equipment from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary surge suppression element on differential pair, referenced to local ground plane. Use Value: Absorbs 600 W transient energy within 1 ns response time, preserving signal integrity and avoiding communication dropout. |
| Automotive Body Control Module | Power Supply Input Stage |
Use Scenario: Safeguarding LIN bus and switch input pins in BCMs against load dump and ISO 7637-2 pulse 1/2/5a transients. IC Role / Device Role / Timing Role: Secondary-level protection downstream of fuse and common-mode choke, directly at microcontroller pin. Use Value: Withstands 100 A surge (IFSM not applicable; bidirectional IPPM = 6.4 A) while maintaining <1 µA leakage at 58 V system rail. | Use Scenario: Guarding 24 V DC input rails of programmable logic controllers against inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor to shunt surge energy before it reaches upstream DC-DC converter. Use Value: Clamps 58 V nominal rail to ≤93.6 V during 10/1000 µs events, preventing overvoltage shutdown or capacitor rupture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package | No functional difference; selected where halogen-free compliance is mandated by OEM spec | Direct material substitution when halogen-free requirement applies |
| SMCJ58CA-E3/57T | Same VWM/VBR/VC, but in larger SMC (DO-214AB) package with higher PPPM = 1500 W | Used where higher surge margin is needed (e.g., outdoor power supplies); requires larger PCB footprint | Choose when 600 W is insufficient and board space allows SMC footprint |
Compared with SMBJ58CA-E3/5B, the M3/5B variant offers identical protection performance with halogen-free construction, while the SMCJ58CA-E3/57T delivers 2.5× higher surge power in a larger package - enabling design flexibility between compactness and robustness without changing circuit topology.
Availability
SMBJ58CA-E3/5B is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, automotive body control modules, and 24 V DC power supply input stages requiring stable component supply and full RoHS compliance.
Supply support for SMBJ58CA-E3/5B 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 supplier of discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and industrial-grade qualification.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting applications demanding repeatable clamping, low leakage, and AEC-Q101 readiness - including factory automation, telecom infrastructure, and vehicle electronics.
FAQ
What is the clamping voltage of SMBJ58CA-E3/5B at its rated peak pulse current?
The SMBJ58CA-E3/5B clamps to a maximum of 93.6 V at its rated peak pulse current of 6.4 A (10/1000 µs waveform). This value is measured under standardized test conditions with the device mounted on 0.2" × 0.2" copper pads, and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ58CA-E3/5B maintains this clamping performance consistently across its operational temperature range.
Is SMBJ58CA-E3/5B suitable for bidirectional signal line protection?
Yes, SMBJ58CA-E3/5B is explicitly designed for bidirectional transient suppression, with symmetrical VBR, VC, and leakage characteristics in both polarities. Its CA suffix denotes bidirectional functionality, and no cathode band marking is present - making it ideal for protecting AC-coupled interfaces like RS-485, CAN FD, or audio lines where polarity reversal may occur. The SMBJ58CA-E3/5B performs identically regardless of surge direction.
What is the thermal resistance and maximum power dissipation of SMBJ58CA-E3/5B?
The SMBJ58CA-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W. Its steady-state power dissipation (PD) is rated at 5.0 W at TA = 50 °C on an infinite heatsink. These values inform thermal layout decisions - such as minimum copper pad area and proximity to other heat sources - to ensure the SMBJ58CA-E3/5B remains within its −55 °C to +150 °C junction temperature limit.
Does SMBJ58CA-E3/5B meet automotive qualification standards?
The base SMBJ58CA-E3/5B is commercial-grade and RoHS-compliant but not AEC-Q101 qualified. However, Vishay offers the automotive variant SMBJ58CAHE3_B/I, which carries the same electrical specifications and adds AEC-Q101 qualification. For designs requiring automotive qualification, SMBJ58CA-E3/5B must be replaced with the HE3-suffixed version - the SMBJ58CA-E3/5B itself is intended for industrial and telecom applications where AEC-Q101 is not mandated.
How does the SMBJ58CA-E3/5B compare to unidirectional SMBJ58A variants?
The SMBJ58CA-E3/5B differs from unidirectional SMBJ58A in polarity behavior: it clamps transients in both directions with identical VBR and VC, whereas SMBJ58A only suppresses in reverse bias and conducts forward current above ~3.5 V. SMBJ58CA-E3/5B has no cathode band marking and supports floating or AC-coupled lines; SMBJ58A requires correct orientation and is used where forward conduction must be blocked. Both share the same SMB package and 600 W rating.
SMBJ58CA-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ58CA-E3/5B FAQ
1.How can I place an order for SMBJ58CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58CA-E3/5B 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 SMBJ58CA-E3/5B reliable?
The price and inventory of SMBJ58CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ58CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58CA-E3/5B?
SMBJ58CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58CA-E3/5B 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 SMBJ58CA-E3/5B?
For technical support, including SMBJ58CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58CA-E3/5B requirements.
6.How does Aetrix verify that SMBJ58CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ58CA-E3/5B 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 SMBJ58CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ58CA-E3/5B?
All SMBJ58CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58CA-E3/5B, 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 SMBJ58CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ58CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58CA-E3/5B Tags
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