My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ58CAHM3/I
- Part No.:
- SMBJ58CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58CAHM3/I.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,503
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ58CAHM3/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 voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤93.6 V at 6.4 A peak surge current - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ58CAHM3/I datasheet, SMBJ58CAHM3/I pinout, SMBJ58CAHM3/I application, or SMBJ58CAHM3/I equivalent, this part serves as a halogen-free, RoHS-compliant, AEC-Q101-qualified TVS for bidirectional transient suppression where low clamping voltage, fast response (<1 ns), and MSL Level 1 reflow compatibility are critical selection criteria.
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 20 °C/W junction-to-lead thermal resistance supports reliable surge energy dissipation under repetitive transient conditions.
The device complies with ANSI/IEEE C62.35 for surge protector terminology and testing, and its 100 °C/W junction-to-ambient thermal resistance reflects standard PCB mounting on 0.2" × 0.2" copper pads. It is rated for continuous operation from –55 °C to +150 °C and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 64.4 V / 71.2 V at 1 mA - guaranteed breakdown range defining turn-on threshold tolerance |
| VC @ IPPM | ≤93.6 V at 6.4 A - clamping voltage during 600 W 10/1000 µs surge, limiting downstream stress |
| PPPM | 600 W - peak pulse power handling capability per single 10/1000 µs transient event |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage ensuring minimal standby power loss and signal integrity |
| TJ max | +150 °C - maximum junction temperature enabling use in high-ambient industrial environments |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking; terminals are matte tin-plated and solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical junction; accepts surge current in either direction |
| Cathode | Transient current entry (positive polarity) | Second terminal of symmetrical junction; completes bidirectional conduction path |
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) | Handles common lightning-induced and inductive-switching surges in industrial control I/O |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets environmental compliance requirements for global industrial and automotive production |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning or special handling |
Applications
| Industrial Sensor Interface Protection | Telecom Line Surge Suppression |
|---|---|
|
Use Scenario: Protecting 4–20 mA current-loop sensors in factory automation against EFT and surge events from nearby motor switching. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential analog input pins to clamp transients before signal conditioning circuitry. Use Value: Clamps 600 W surges to ≤93.6 V while maintaining <1.0 µA leakage at 58 V, preserving loop accuracy and long-term calibration stability. |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from induced lightning surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Paired TVS devices across A/B bus lines to suppress common-mode and differential transients simultaneously. Use Value: Symmetrical 64.4–71.2 V breakdown ensures balanced clamping on both lines, minimizing data corruption during multi-kV transients. |
| Automotive Body Control Module (BCM) Inputs | Power Supply Rail Clamp |
|
Use Scenario: Safeguarding microcontroller GPIOs connected to external switches or relays in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to shunt load-dump and ISO 7637-2 pulse 1/2a energy. Use Value: AEC-Q101 qualification and 150 °C junction rating ensure operation under hood temperatures and repeated surge exposure. |
Use Scenario: Secondary overvoltage clamp on 58 V intermediate bus in telecom power systems after primary DC-DC regulation. IC Role / Device Role / Timing Role: Standoff-rated TVS acting as last-line defense against regulator fault or feedback loop failure. Use Value: Precise 58 V VWM aligns with system rail tolerance, avoiding false triggering while guaranteeing hard clamp at ≤93.6 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CAHE3/I | RoHS-compliant but not halogen-free; lacks JESD201 Class 2 whisker resistance certification | Suitable for commercial-grade industrial equipment where halogen-free requirement is absent | Select when cost sensitivity outweighs halogen-free mandate and automotive qualification is unnecessary |
| SAC58CA | Same VWM/VBR/VC specs but in smaller SOD-123 package (lower PPPM = 400 W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 3+ or lightning-prone locations | Choose only for space-constrained consumer electronics with verified sub-400 W surge profiles |
Compared with SMBJ58CAHE3/I and SAC58CA, the SMBJ58CAHM3/I uniquely combines halogen-free construction, AEC-Q101 qualification, and full 600 W surge capacity in the SMB footprint - making it the only option meeting automotive-tier reliability and industrial surge immunity simultaneously.
Availability
SMBJ58CAHM3/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, automotive body control modules, and intermediate bus rail clamping requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ58CAHM3/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, power efficiency, and application-specific validation.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting industrial automation, automotive electronics, and telecom infrastructure where repeatable clamping performance and AEC-Q101 compliance are mandatory.
FAQ
What does the "HM3" suffix indicate in SMBJ58CAHM3/I?
The HM3 suffix denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and AEC-Q101 qualification. It confirms the SMBJ58CAHM3/I meets automotive reliability standards and environmental regulations for lead-free assembly, distinguishing it from commercial-grade E3 or HE3 variants.
Is SMBJ58CAHM3/I unidirectional or bidirectional?
SMBJ58CAHM3/I is a bidirectional TVS diode, as indicated by the "CA" suffix. Its electrical characteristics - including VBR, VC, and IPPM - apply identically in both polarities, enabling symmetric transient suppression on AC signals, differential buses, or floating nodes without polarity constraints.
What is the maximum clamping voltage of SMBJ58CAHM3/I under surge conditions?
The SMBJ58CAHM3/I 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 guaranteed across temperature and production lot, ensuring predictable overvoltage limiting for downstream ICs such as RS-485 transceivers or microcontroller I/O pins.
Can SMBJ58CAHM3/I replace SMBJ58A in a design?
No - SMBJ58A is unidirectional with cathode marking and forward conduction capability, while SMBJ58CAHM3/I is bidirectional with no polarity marking. Substituting SMBJ58CAHM3/I for SMBJ58A would eliminate DC blocking function and may cause unintended conduction in DC-biased circuits; the two are not functionally interchangeable.
What PCB pad layout is recommended for SMBJ58CAHM3/I?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal for SMBJ58CAHM3/I to achieve rated 600 W pulse power and thermal performance. The SMB (DO-214AA) outline drawing on page 5 of document 88392 defines exact land pattern dimensions, including 0.086" terminal width and 0.155" center-to-center spacing.
SMBJ58CAHM3/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:
- Discontinued at Digi-Key
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ58CAHM3/I FAQ
1.How can I place an order for SMBJ58CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58CAHM3/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 SMBJ58CAHM3/I reliable?
The price and inventory of SMBJ58CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMBJ58CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58CAHM3/I?
SMBJ58CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58CAHM3/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 SMBJ58CAHM3/I?
For technical support, including SMBJ58CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58CAHM3/I requirements.
6.How does Aetrix verify that SMBJ58CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ58CAHM3/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 SMBJ58CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMBJ58CAHM3/I?
All SMBJ58CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58CAHM3/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 SMBJ58CAHM3/I part is unused and in its original packaging.
Return procedure for SMBJ58CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58CAHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
