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Vishay General Semiconductor - Diodes Division SMBJ58CA-E3/52
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- Part No.:
- SMBJ58CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58CA-E3/52.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,140
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Product details
Overview
SMBJ58CA-E3/52 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 power and signal 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 protects MOSFETs, ICs, and sensor signal lines in industrial power supplies and telecom interfaces.
For engineers reviewing the SMBJ58CA-E3/52 datasheet, SMBJ58CA-E3/52 pinout, SMBJ58CA-E3/52 application, or SMBJ58CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.42), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ps), enabling protection against ESD, lightning-induced surges, and inductive switching transients.
The device is rated for 150 °C maximum junction temperature and exhibits a VBR temperature coefficient of +0.104 %/°C - critical for thermal stability in automotive and industrial environments where ambient temperatures exceed 85 °C. Its RθJA of 100 °C/W requires careful PCB thermal design to sustain repetitive surge duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse/forward operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - guaranteed breakdown onset window; ensures predictable clamping initiation under transient stress. |
| VC @ IPPM | 93.6 V at 6.4 A (10/1000 µs) - peak clamped voltage seen by downstream components; determines minimum required voltage margin. |
| PPPM | 600 W - peak transient energy absorption capacity; supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω). |
| ID @ VWM | <1.0 µA - ultra-low leakage at standoff voltage; prevents loading of high-impedance sensor or reference circuits. |
| TJ max. | 150 °C - maximum junction temperature rating; enables operation in under-hood automotive or enclosed industrial enclosures. |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with J-STD-020 reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals with cathode/anode roles interchangeable per direction of transient stress.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Transient current entry (negative polarity) | Accepts negative-going surges; forms one side of bidirectional clamping path with Terminal 2. |
| Cathode (Terminal 2) | Transient current entry (positive polarity) | Accepts positive-going surges; completes symmetrical clamping loop with Terminal 1. |
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 (10/1000 µs) | Supports repeated surge events per IEC 61000-4-5 up to 4 kV open-circuit voltage with 2 Ω source impedance. |
| MSL Level 1 (260 °C peak) | Permits standard lead-free reflow without baking; eliminates moisture-related popcorning during assembly. |
| Glass-passivated junction | Ensures long-term reliability and stable VBR drift <±5 % over 1000 hrs at 85 °C/85 % RH. |
| RoHS-compliant, matte tin-plated leads | Meets J-STD-002 solderability and JESD22-B102 whisker resistance Class 2 requirements. |
Applications
| Industrial Motor Drives | Telecom Power Interfaces |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from 24 V DC motor coils. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across MOSFET gate-source or op-amp input pins. Use Value: Limits transient overshoot to ≤93.6 V, preventing gate oxide rupture and maintaining signal integrity during 100 A coil turn-off. |
Use Scenario: Surge suppression on -48 V DC telecom power feeds entering base station control boards. IC Role / Device Role / Timing Role: Primary line-level TVS connected between power rail and chassis ground. Use Value: Absorbs 600 W surges from lightning-induced coupling while holding clamped voltage below 100 V to safeguard PMICs and microcontrollers. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
|
Use Scenario: Protecting LIN bus transceivers and load switch inputs from battery dump energy and load-dump transients. IC Role / Device Role / Timing Role: Secondary protection device downstream of primary fuses and upstream of transceiver ICs. Use Value: Responds in <1 ps to clamp 12 V system surges to 93.6 V, meeting ISO 7637-2 Pulse 5a requirements without adding series impedance. |
Use Scenario: Shielding 4–20 mA current-loop analog inputs from ESD and field wiring transients in factory automation PLCs. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) bidirectional clamp placed across input terminals before precision shunt resistor. Use Value: Prevents input stage saturation during ±8 kV contact ESD events while introducing negligible offset error due to sub-µA leakage. |
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-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No functional difference; selected when halogen-free compliance is mandated by end-equipment environmental policy. | Choose SMBJ58CA-M3/52 for green manufacturing programs requiring halogen-free bill-of-materials. |
| SMCJ58CA-E3/52 | Same VWM/VBR/VC but in larger SMC (DO-214AB) package; 1500 W PPPM, higher IPPM (10.3 A), RθJA = 50 °C/W. | Used where higher surge endurance or improved thermal dissipation is required, e.g., outdoor telecom cabinets. | Choose SMCJ58CA-E3/52 when system-level surge testing exceeds 600 W or board layout allows larger footprint. |
Compared with SMBJ58CA-E3/52, SMBJ58CA-M3/52 offers identical protection performance with halogen-free construction, while SMCJ58CA-E3/52 delivers 2.5× higher surge power handling in a larger package - enabling trade-offs between board space, thermal margin, and material compliance.
Availability
SMBJ58CA-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and full traceability.
Supply support for SMBJ58CA-E3/52 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 and application-specific performance.
The SMBJ series was engineered for high-reliability transient suppression in space-constrained SMT designs, targeting industrial, automotive, and telecom systems where bidirectional clamping, low leakage, and AEC-Q101 readiness are essential.
FAQ
What is the clamping voltage of SMBJ58CA-E3/52 at its rated peak pulse current?
The SMBJ58CA-E3/52 has a maximum clamping voltage (VC) of 93.6 V when subjected to its rated peak pulse current of 6.4 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ58CA-E3/52 maintains this clamping performance across both polarities due to its bidirectional architecture.
Is SMBJ58CA-E3/52 suitable for automotive applications?
SMBJ58CA-E3/52 is RoHS-compliant and meets MSL Level 1, but it is not AEC-Q101 qualified in the E3/52 configuration. For automotive use, Vishay offers the SMBJ58CAHE3_B/H variant, which carries AEC-Q101 qualification. The SMBJ58CA-E3/52 may be used in non-safety-critical automotive subsystems only after full system-level validation; however, SMBJ58CA-E3/52 itself does not carry automotive qualification documentation.
How does the bidirectional nature of SMBJ58CA-E3/52 affect its PCB layout?
The SMBJ58CA-E3/52 has no polarity marking and functions identically in both directions, simplifying PCB layout by eliminating orientation constraints during automated placement. Unlike unidirectional TVS diodes, it can be placed across any two nodes subject to bipolar transients - such as differential signal pairs or AC-coupled power rails - without requiring silkscreen polarity indicators or orientation verification. This reduces assembly errors and supports compact routing in dense layouts.
What is the maximum reverse leakage current of SMBJ58CA-E3/52 at its standoff voltage?
The SMBJ58CA-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 58 V standoff voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage ensures minimal loading of high-impedance circuits such as precision voltage references or sensor front-ends. At elevated temperatures (e.g., 85 °C), leakage remains below 5 µA, preserving signal fidelity in thermally demanding environments.
Can SMBJ58CA-E3/52 replace a unidirectional TVS like SMBJ58A-E3/52 in an existing design?
No - SMBJ58CA-E3/52 is bidirectional and cannot directly replace the unidirectional SMBJ58A-E3/52 without circuit review. While both share identical VWM, VBR, and VC values, the unidirectional part conducts forward current during positive transients only and blocks reverse current, whereas SMBJ58CA-E3/52 clamps in both directions. Substitution may cause unintended conduction paths or violate biasing requirements in DC-coupled circuits.
SMBJ58CA-E3/52 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-E3/52 FAQ
1.How can I place an order for SMBJ58CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58CA-E3/52 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 SMBJ58CA-E3/52 reliable?
The price and inventory of SMBJ58CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ58CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58CA-E3/52?
SMBJ58CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58CA-E3/52 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 SMBJ58CA-E3/52?
For technical support, including SMBJ58CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58CA-E3/52 requirements.
6.How does Aetrix verify that SMBJ58CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ58CA-E3/52 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 SMBJ58CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ58CA-E3/52?
All SMBJ58CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58CA-E3/52, 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 SMBJ58CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ58CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58CA-E3/52 Tags
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