My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ58CAHM3_B/I
- Part No.:
- SMBJ58CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58CAHM3_B/I.pdf
- Description:
- 600W,58V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,315
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ58CAHM3_B/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 - used for protecting MOSFETs, sensor interfaces, and industrial I/O lines against ESD and inductive switching surges.
For engineers reviewing the SMBJ58CAHM3_B/I datasheet, SMBJ58CAHM3_B/I pinout, SMBJ58CAHM3_B/I application, or SMBJ58CAHM3_B/I equivalent, this device is selected for robust bidirectional transient suppression in space-constrained PCB layouts where AEC-Q101 qualification, halogen-free compliance, and MSL Level 1 moisture sensitivity are required.
Technical Context
This TVS operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and repeatable clamping performance across temperature (-55 °C to +150 °C).
The device delivers 600 W peak pulse power under standardized 10/1000 µs waveform conditions with low incremental surge resistance, resulting in tight voltage clamping during fast transients. Its thermal resistance (RθJA = 100 °C/W) and junction-to-lead resistance (RθJL = 20 °C/W) support reliable operation on standard 0.2" × 0.2" copper pads without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - guaranteed breakdown range defining turn-on threshold |
| VC @ IPPM | ≤93.6 V at 6.4 A - clamped voltage during full 600 W transient, limiting stress on downstream ICs |
| PPPM | 600 W - peak pulse power handling per 10/1000 µs waveform, supporting high-energy surge events |
| IPPM | 6.4 A - maximum non-repetitive surge current the device safely conducts without failure |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive or industrial environments |
| Package | SMB (DO-214AA) - surface-mount footprint (5.21 mm × 4.06 mm) compatible with automated placement and reflow |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration with no polarity marking; symmetrical terminals suitable for AC line or differential pair protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either direction) | One terminal of the bidirectional avalanche junction; connects to protected line without polarity constraint |
| Cathode | Transient current exit (either direction) | Second terminal of the same junction; completes symmetrical conduction path during positive or negative surges |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, RS-485 buses, or ungrounded sensor outputs without external polarity management |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) when properly laid out on PCB |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets environmental compliance requirements for industrial and automotive end equipment without compromising surge performance |
| AEC-Q101 qualified | Validated for automotive applications including body electronics, infotainment I/O, and ADAS sensor interfaces |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without baking or special handling prior to assembly |
Applications
| Industrial PLC I/O Protection | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protecting 24 V DC analog input channels in programmable logic controllers from field-wiring induced transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground to clamp ±1 kV EFT bursts and inductive kickback. Use Value: Limits voltage seen by precision ADC front-end to ≤93.6 V, preventing latch-up or damage while maintaining signal integrity. |
Use Scenario: Safeguarding LIN bus or analog pressure sensor outputs in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Standoff-rated TVS suppressing fast transients (<100 ns rise time) on sensor supply or output lines. Use Value: Maintains functional safety by ensuring sensor data remains valid during ISO 7637-2 Pulse 1/2a/5a events without system reset. |
| RS-485 Communication Port | Consumer Appliance Motor Control |
|
Use Scenario: Protecting half-duplex RS-485 transceivers (e.g., MAX1487) in building automation gateways from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional TVS connected across A/B differential pair and ground to suppress common-mode transients. Use Value: Prevents transceiver latch-up during 4 kV IEC 61000-4-5 surges while preserving signal edge fidelity up to 10 Mbps. |
Use Scenario: Shielding microcontroller GPIOs driving brushed DC motors in smart home appliances from back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at motor driver output pins to absorb inductive energy without slowing PWM edges. Use Value: Eliminates need for snubbers or RC networks, reducing BOM count while meeting IEC 61000-4-4 EFT immunity 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 |
|---|---|---|---|
| SMBJ58CAHE3_B/I | RoHS-compliant but not halogen-free; lacks HM3's halogen-free certification | Acceptable for commercial-grade industrial designs where halogen-free is not mandated | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 is not needed |
| SAC58CA | Same VWM/VC specs but in smaller SOD-123FL package; lower PPPM (400 W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Choose only for space-constrained consumer applications with <300 W surge exposure |
Compared with SMBJ58CAHM3_B/I, the HE3 variant trades halogen-free compliance for lower unit cost in non-automotive settings, while SAC58CA reduces footprint at the expense of 33 % peak power handling - making SMBJ58CAHM3_B/I the optimal choice for AEC-Q101–required, high-surge industrial or automotive deployments.
Availability
SMBJ58CAHM3_B/I is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive sensor interface circuits, and RS-485 communication ports requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for SMBJ58CAHM3_B/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, and protection devices with emphasis on reliability, power efficiency, and application-specific validation.
The SMBJ series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where robustness and standardized surge compliance are mandatory.
FAQ
What is the standoff voltage rating of SMBJ58CAHM3_B/I?
The SMBJ58CAHM3_B/I has a maximum reverse standoff voltage (VWM) of 58 V, meaning it remains non-conductive below this DC or RMS voltage level while providing reliable isolation for protected circuits. This value is confirmed in Vishay's official datasheet (Document Number: 88392, Revision: 09-Jan-2024) and defines the upper limit of normal operating voltage before clamping initiates. The SMBJ58CAHM3_B/I maintains low leakage (<1 µA) at this voltage, ensuring minimal loading on sensitive analog or digital inputs.
Is SMBJ58CAHM3_B/I suitable for automotive applications?
Yes, SMBJ58CAHM3_B/I is AEC-Q101 qualified and explicitly designated for automotive use via its HM3 suffix, which denotes halogen-free, RoHS-compliant, and AEC-Q101–validated construction. It meets stringent requirements for under-hood and cabin electronics, including temperature cycling, mechanical shock, and surge immunity. The SMBJ58CAHM3_B/I is commonly deployed in engine control units, body control modules, and ADAS sensor interfaces where certified reliability is mandatory.
How does the bidirectional design of SMBJ58CAHM3_B/I affect circuit layout?
The bidirectional nature of SMBJ58CAHM3_B/I eliminates polarity constraints during PCB placement - no cathode band or orientation marking is present, simplifying layout and reducing assembly errors. It can be placed across any two nodes subject to differential or common-mode transients (e.g., RS-485 A/B lines or AC-coupled audio paths) without regard to signal direction. This symmetry also avoids the need for dual unidirectional devices in balanced systems, directly lowering component count and board area for the SMBJ58CAHM3_B/I.
What is the clamping voltage of SMBJ58CAHM3_B/I at its rated surge current?
The SMBJ58CAHM3_B/I clamps to a maximum of 93.6 V when subjected to its peak pulse current (IPPM) of 6.4 A under the standard 10/1000 µs waveform. This clamping voltage is measured across the device terminals during transient conduction and represents the highest voltage downstream components will experience. Verified in Vishay's datasheet Table "ELECTRICAL CHARACTERISTICS", this value ensures safe operation for 75 V-rated ICs and MOSFETs when the SMBJ58CAHM3_B/I is correctly mounted on recommended 0.2" × 0.2" copper pads.
Does SMBJ58CAHM3_B/I require derating at elevated ambient temperatures?
Yes, SMBJ58CAHM3_B/I must be derated above 25 °C ambient per Figure 2 in the Vishay datasheet: its peak pulse power capability decreases linearly to ~50 % at 100 °C ambient. This thermal derating is critical for high-temperature applications such as engine compartments or enclosed industrial enclosures. Designers must verify that the expected surge energy falls within the derated PPPM curve for the actual operating temperature - the SMBJ58CAHM3_B/I's RθJA of 100 °C/W and TJmax of +150 °C define the usable thermal margin.
SMBJ58CAHM3_B/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:
- 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:
- 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_B/I FAQ
1.How can I place an order for SMBJ58CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58CAHM3_B/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_B/I reliable?
The price and inventory of SMBJ58CAHM3_B/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_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ58CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58CAHM3_B/I?
SMBJ58CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58CAHM3_B/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_B/I?
For technical support, including SMBJ58CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58CAHM3_B/I requirements.
6.How does Aetrix verify that SMBJ58CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ58CAHM3_B/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_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ58CAHM3_B/I?
All SMBJ58CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58CAHM3_B/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_B/I part is unused and in its original packaging.
Return procedure for SMBJ58CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58CAHM3_B/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 …
