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Vishay General Semiconductor - Diodes Division SMBJ36CAHE3_B/I
- Part No.:
- SMBJ36CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CAHE3_B/I.pdf
- Description:
- 600W,36V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,667
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Product details
Overview
SMBJ36CAHE3_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 power and signal lines. It features 36 V standoff voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1 mA, 58.1 V maximum clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in industrial sensor interfaces and automotive ECUs.
For engineers reviewing the SMBJ36CAHE3_B/I datasheet, SMBJ36CAHE3_B/I pinout, SMBJ36CAHE3_B/I application, or SMBJ36CAHE3_B/I equivalent, key selection criteria include bidirectional surge protection capability, AEC-Q101 qualification status, clamping voltage margin relative to protected IC rails, and thermal performance under repetitive surge conditions.
Technical Context
This device operates as a voltage-clamping protector with symmetrical bidirectional avalanche behavior, enabling suppression of both positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports consistent clamping across surge events.
The SMBJ36CAHE3_B/I is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - guaranteed breakdown range defining turn-on threshold tolerance |
| VC @ IPPM | 58.1 V at 10.3 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream circuitry |
| PPPM | 600 W - peak transient energy absorption capacity under standardized 10/1000 µs waveform |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserving signal integrity and power efficiency |
| TJ max | +150 °C - enables reliable operation in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (symmetrical) | Bidirectional avalanche junction terminals | No functional distinction - either terminal accepts positive or negative transient surges equally |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| 600 W peak pulse power | Withstands high-energy transients from load dump or inductive switching without degradation |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage margin between clamping and protected IC's absolute maximum rating |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking or special handling requirements |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage under thermal and humidity stress |
Applications
| Automotive Body Control Module (BCM) | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting microcontroller I/O and LIN bus lines from load-dump and jump-start induced transients in vehicle body electronics. IC Role / Device Role: Bidirectional clamping element placed directly at connector entry point before ESD protection and signal conditioning stages. Use Value: Maintains 36 V standoff while clamping to 58.1 V, ensuring compliance with ISO 7637-2 Pulse 5a limits and preventing MCU latch-up. |
Use Scenario: Safeguarding CAN transceiver supply and data lines against EFT bursts and cable discharge events in factory automation systems. IC Role / Device Role: Primary surge suppressor on VCC and differential bus lines (CAN_H/CAN_L), coordinated with common-mode chokes. Use Value: 600 W rating absorbs multiple 10/1000 µs surges without parameter shift, supporting >100,000-cycle field reliability. |
| Smart Meter Power Input Stage | Medical Sensor Signal Conditioning |
Use Scenario: Suppressing lightning-induced surges on AC/DC converter input in utility smart meters exposed to outdoor distribution networks. IC Role / Device Role: First-line transient clamp on bulk DC rail after bridge rectifier and before primary switching regulator. Use Value: 150 °C TJ max and 100 °C/W RθJA enable sustained operation in sealed enclosures with limited airflow. |
Use Scenario: Shielding analog front-end amplifiers and ADC inputs from electrostatic discharge during patient interface handling. IC Role / Device Role: Low-capacitance (<100 pF typical) bidirectional TVS placed adjacent to connector pins on low-noise signal paths. Use Value: Sub-µA leakage at 36 V preserves offset accuracy and dynamic range in µV-level biomedical measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CAHM3_B/I | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification | Required where halogen-free material compliance is mandated (e.g., EU medical or public infrastructure projects) | Select when regulatory compliance requires absence of brominated flame retardants |
| SMCJ36CAHE3_A | Higher-power 1500 W version in larger SMC (DO-214AB) package; same VWM/VBR/VC ratings | Suitable for higher-energy threat environments (e.g., 24 V industrial PLC backplanes with longer trace inductance) | Choose only if system-level surge testing exceeds 600 W capability and PCB layout allows SMC footprint |
Compared with SMBJ36CAHE3_B/I, the HM3 variant adds halogen-free construction without altering protection performance, while the SMCJ36CAHE3_A offers triple the pulse power in a physically larger package - requiring layout revision and offering no benefit unless tested surge levels exceed 600 W.
Availability
SMBJ36CAHE3_B/I is available at Aetrix Electronics and suitable for automotive infotainment head units, industrial motor drives, and telecom power supplies requiring stable component supply with AEC-Q101 assurance and tape-and-reel delivery.
Supply support for SMBJ36CAHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific optimization.
The SMBJ series targets board-level transient protection in space-constrained, high-reliability applications - engineered for fast response, repeatable clamping, and compatibility with automotive and industrial environmental stress profiles.
FAQ
What is the standoff voltage rating of SMBJ36CAHE3_B/I?
The SMBJ36CAHE3_B/I has a standoff voltage (VWM) of 36 V, meaning it remains non-conductive under continuous reverse bias up to this level. This value is confirmed in the Vishay datasheet Document Number 88392, Table "ELECTRICAL CHARACTERISTICS", row for SMBJ36A/SMBJ36CA. The SMBJ36CAHE3_B/I maintains this rating across its full operating temperature range.
Is SMBJ36CAHE3_B/I AEC-Q101 qualified?
Yes, SMBJ36CAHE3_B/I is AEC-Q101 qualified, as indicated by the "HE3" suffix and explicitly stated in the "MECHANICAL DATA" section of the Vishay datasheet (Rev. 09-Jan-2024). This qualification covers temperature cycling, high-temperature reverse bias, and ESD testing per automotive reliability standards - critical for deployment in engine control units and ADAS subsystems using SMBJ36CAHE3_B/I.
What is the maximum clamping voltage for SMBJ36CAHE3_B/I at rated surge current?
The SMBJ36CAHE3_B/I clamps to a maximum of 58.1 V at its rated peak pulse current of 10.3 A (10/1000 µs waveform), per the "ELECTRICAL CHARACTERISTICS" table in the Vishay datasheet. This VC value defines the upper voltage limit imposed on protected circuitry during surge events and is measured under standardized test conditions with specified PCB pad layout.
Does SMBJ36CAHE3_B/I have polarity markings on the package?
No, SMBJ36CAHE3_B/I does not have polarity markings because it is a bidirectional TVS diode - both terminals are functionally identical and symmetric. As stated in the Vishay datasheet "MECHANICAL DATA" section: "no marking on bidirectional types". This eliminates orientation errors during automated placement and simplifies layout routing for differential or AC-coupled lines.
What package type does SMBJ36CAHE3_B/I use?
SMBJ36CAHE3_B/I uses the SMB (DO-214AA) surface-mount package, with dimensions of 4.57 mm × 3.94 mm × 2.29 mm (L × W × H) per the "PACKAGE OUTLINE DIMENSIONS" drawing in the Vishay datasheet. This compact, low-profile package supports high-density PCB layouts and is compatible with standard reflow soldering profiles, including lead-free processes up to 260 °C peak.
SMBJ36CAHE3_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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMBJ36CAHE3_B/I FAQ
1.How can I place an order for SMBJ36CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CAHE3_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 SMBJ36CAHE3_B/I reliable?
The price and inventory of SMBJ36CAHE3_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 SMBJ36CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ36CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CAHE3_B/I?
SMBJ36CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CAHE3_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 SMBJ36CAHE3_B/I?
For technical support, including SMBJ36CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CAHE3_B/I requirements.
6.How does Aetrix verify that SMBJ36CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ36CAHE3_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 SMBJ36CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ36CAHE3_B/I?
All SMBJ36CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CAHE3_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 SMBJ36CAHE3_B/I part is unused and in its original packaging.
Return procedure for SMBJ36CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CAHE3_B/I Tags
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