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Vishay General Semiconductor - Diodes Division SMBJ58CHE3/5B
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- Part No.:
- SMBJ58CHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58CHE3/5B.pdf
- Description:
- TVS DIODE 58VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,199
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Product details
Overview
SMBJ58CHE3/5B from Vishay General Semiconductor is a unidirectional 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 stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), 93.6 V maximum clamping voltage (VC) at 6.4 A, and operates across –55 °C to +150 °C junction temperature range - deployed in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the SMBJ58CHE3/5B datasheet, SMBJ58CHE3/5B pinout, SMBJ58CHE3/5B application, or SMBJ58CHE3/5B equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), polarity marking (cathode band), and RoHS-compliant packaging details - all critical for ESD/surge protection design-in and BOM validation.
Technical Context
This TVS diode operates as a unidirectional clamping device: reverse-biased during normal operation with ≤1.0 µA leakage at 58 V, then avalanche-triggering within nanoseconds when transient voltage exceeds VBR. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance under repetitive 10/1000 µs surges at 0.01% duty cycle.
Designed for PCB-level transient suppression, SMBJ58CHE3/5B mounts on 5.0 mm × 5.0 mm copper pads per terminal, delivering 600 W peak pulse power dissipation while maintaining clamping voltage ≤93.6 V at 6.4 A. It meets MSL Level 1 per J-STD-020 and supports automated placement due to low-profile SMB package geometry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping threshold |
| VBR (min/max) | 64.4 V / 71.2 V at IT = 1 mA - Confirmed avalanche onset range; ensures reliable triggering above system overvoltage thresholds |
| VC @ IPPM | 93.6 V at 6.4 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to sub-94 V level |
| PPPM | 600 W - Peak pulse power handling capability; sustains standardized lightning/surge transients without failure |
| IPPM | 6.4 A - Peak surge current supported at VC; directly calculable from PPPM/VC = 600 W / 93.6 V |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard pad layout; informs derating above 25 °C ambient |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive and high-temperature industrial environments |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by a single band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge events |
| Cathode | Reverse-biased clamping terminal | Marked with band; connected to protected line (e.g., 48 V rail); avalanches into conduction when VIN > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power supplies |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surge (4 kV/2 Ω) on 12 V/24 V/48 V systems |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage exposure to protected MOSFETs or CAN transceivers during transients |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without moisture sensitivity concerns |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 60 V, 100 ms) on 48 V battery architectures in electric power steering modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between 48 V rail and ground, triggered within <1 ns of overvoltage event. Use Value: Limits rail voltage to ≤93.6 V during 600 W surge, protecting downstream DC-DC converters and microcontrollers rated for 100 V absolute max. |
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Reverse-biased TVS shunting induced ESD (IEC 61000-4-2 ±8 kV contact) and inductive kickback from solenoid drivers. Use Value: Maintains signal integrity by clamping transients below 94 V while adding only 1.0 µA leakage at 58 V, avoiding offset errors in precision current sources. |
| Telecom DC Power Input Protection | Consumer USB-C Power Delivery Clamp |
|
Use Scenario: Safeguarding primary-side rectifiers and PMICs in PoE-powered network switches exposed to lightning-induced surges on 57 V DC input. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC input rail, conducting only during >64.4 V transients; non-conductive during nominal operation. Use Value: Absorbs 600 W surges without degradation, enabling compliance with UL 60950-1 and IEC 62368-1 surge immunity requirements. |
Use Scenario: Secondary-side transient suppression on VBUS line of USB-C PD sink ports subjected to hot-plug ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to ground, activated only during positive overvoltage excursions on 20 V PD rails. Use Value: Provides sub-100 V clamping with 93.6 V VC, preventing latch-up in USB-C controller ICs while meeting USB-IF ESD test requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58AHE3/5B | Same electrical specs and AEC-Q101 qualification; differs only in base P/N suffix formatting (no "C" in middle) | Identical use cases; no functional or mechanical distinction in circuit design or layout | Select SMBJ58AHE3/5B if sourcing from distributors listing that exact variant; functionally interchangeable with SMBJ58CHE3/5B |
| SMCJ58AHE3/5B | Higher 1500 W PPPM, larger SMC (DO-214AB) package, same VWM/VBR/VC ratings | Used where higher surge energy absorption is required (e.g., front-end AC/DC inputs), but requires larger PCB footprint | Choose SMCJ58AHE3/5B only when 600 W is insufficient; SMBJ58CHE3/5B remains optimal for space-constrained 48 V board-level protection |
Compared with SMBJ58AHE3/5B, SMBJ58CHE3/5B offers identical performance in a validated AEC-Q101 package; versus SMCJ58AHE3/5B, it trades 2.5× surge capacity for 40% smaller footprint - making SMBJ58CHE3/5B the preferred choice for compact automotive and industrial PCB layouts requiring certified 600 W clamping.
Availability
SMBJ58CHE3/5B is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface circuits, telecom DC input stages, and consumer USB-C PD clamp applications requiring stable component supply, AEC-Q101 qualification, and RoHS-compliant manufacturing.
Supply support for SMBJ58CHE3/5B 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where precise clamping, fast response, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMBJ58CHE3/5B at its rated peak pulse current?
The SMBJ58CHE3/5B has a maximum clamping voltage (VC) of 93.6 V at its specified peak pulse current (IPPM) of 6.4 A, measured under the standard 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet revision 09-Jan-2024 (Document Number: 88392) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ58CHE3/5B maintains this clamping performance across its full operating temperature range.
Is SMBJ58CHE3/5B qualified for automotive applications?
Yes, SMBJ58CHE3/5B is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and explicitly stated in Vishay's datasheet notes. This qualification validates its reliability for automotive use cases including engine control, ADAS power supplies, and body electronics. The SMBJ58CHE3/5B undergoes stress testing for temperature cycling, humidity, and surge endurance per AEC-Q101 requirements - making it suitable for under-hood and chassis-mounted designs.
What does the "5B" in SMBJ58CHE3/5B indicate?
The "5B" suffix in SMBJ58CHE3/5B denotes the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel. This is distinct from "52", which indicates 7-inch reels of 750 units. The "HE3" portion confirms RoHS-compliance and AEC-Q101 qualification. All electrical and thermal specifications of SMBJ58CHE3/5B remain identical regardless of reel size - only logistics and handling differ.
How does SMBJ58CHE3/5B compare to bidirectional TVS diodes like SMBJ58CHE3/5B-CA?
SMBJ58CHE3/5B is unidirectional and features a cathode band for polarity-sensitive placement, whereas bidirectional variants (e.g., SMBJ58CHE3/5B-CA) have no polarity marking and suppress transients in both directions. The SMBJ58CHE3/5B offers tighter VBR tolerance (64.4–71.2 V) and lower leakage (<1.0 µA at 58 V) than its bidirectional counterpart, making it preferable for DC power rail protection where polarity is fixed and leakage must be minimized.
What is the thermal resistance of SMBJ58CHE3/5B, and how does it affect layout?
The SMBJ58CHE3/5B 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 minimal copper area; increasing pad size or adding thermal vias reduces RθJA and improves power handling. For continuous 5.0 W dissipation, ambient temperature must stay below 100 °C to keep TJ ≤ 150 °C - a key constraint in sealed enclosures or high-density layouts.
SMBJ58CHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
SMBJ58CHE3/5B FAQ
1.How can I place an order for SMBJ58CHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58CHE3/5B 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 SMBJ58CHE3/5B reliable?
The price and inventory of SMBJ58CHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58CHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ58CHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58CHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58CHE3/5B?
SMBJ58CHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58CHE3/5B 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 SMBJ58CHE3/5B?
For technical support, including SMBJ58CHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58CHE3/5B requirements.
6.How does Aetrix verify that SMBJ58CHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ58CHE3/5B 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 SMBJ58CHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ58CHE3/5B?
All SMBJ58CHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58CHE3/5B, 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 SMBJ58CHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ58CHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58CHE3/5B Tags
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