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Vishay General Semiconductor - Diodes Division SMBJ36CAHM3_B/I
- Part No.:
- SMBJ36CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CAHM3_B/I.pdf
- Description:
- 600W,36V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,839
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Product details
Overview
SMBJ36CAHM3_B/I from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 36 V stand-off 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, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial sensor interfaces.
For engineers reviewing the SMBJ36CAHM3_B/I datasheet, SMBJ36CAHM3_B/I pinout, SMBJ36CAHM3_B/I application, or SMBJ36CAHM3_B/I equivalent, this part delivers AEC-Q101-qualified, halogen-free, RoHS-compliant transient suppression for automotive-grade and high-reliability embedded systems requiring stable clamping performance under repetitive surge conditions.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection against voltage transients induced by inductive load switching, ESD events, and lightning surges without polarity constraints. Its glass-passivated junction ensures low leakage (<1.0 µA at VWM) and stable thermal performance up to 150 °C junction temperature.
The device exhibits fast response time (<1.0 ns), low incremental surge resistance, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its clamping behavior is characterized under standardized 10/1000 µs waveform testing, with derating applied above 25 °C ambient per published thermal curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events without premature triggering. |
| VC @ IPPM | 58.1 V at 10.3 A - Clamped voltage seen by protected circuit during 600 W transient; determines downstream component stress level. |
| PPPM | 600 W - Peak pulse power handling capability with 10/1000 µs waveform; supports high-energy surge immunity per IEC 61000-4-5. |
| IPPM | 10.3 A - Peak pulse current corresponding to VC; used to size PCB trace width and verify layout survivability. |
| TJ max. | +150 °C - Maximum junction temperature enabling operation in under-hood automotive or industrial environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated placement and standard reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminal design with cathode/anode interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity surge) | Accepts reverse surge current during negative-going transients; forms one side of bidirectional clamping path. |
| Cathode | Transient current entry (positive polarity surge) | Accepts forward surge current during positive-going transients; completes symmetrical clamping loop with anode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge events on 24 V industrial buses without degradation. |
| AEC-Q101 qualified | Validated for automotive applications including body control modules and ADAS sensor interfaces per stress test requirements. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20D; supports green manufacturing and end-of-life compliance. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard SMT reflow without baking; reduces production handling overhead. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and jump-start surges in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential bus lines to clamp ±60 V transients within 1 ns. Use Value: Prevents latch-up or permanent damage to transceiver ICs while maintaining signal integrity up to 5 Mbps. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting surge energy away from optocoupler inputs and microcontroller GPIOs. Use Value: Eliminates need for external series resistors or RC filters while sustaining >100,000 surge cycles per channel. |
| Telecom Power Rail Protection | Consumer Appliance Motor Control |
|
Use Scenario: Safeguarding PoE-powered Ethernet switch PHYs against lightning-induced common-mode surges on DC supply lines. IC Role / Device Role / Timing Role: Primary clamping element on 48 V bias rail, coordinated with upstream fuse and secondary filtering. Use Value: Limits rail collapse to <58.1 V during 10/1000 µs surges, preserving PHY functionality and link stability. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners). IC Role / Device Role / Timing Role: Parallel-mounted TVS across motor terminals to absorb back-EMF energy during PWM switching. Use Value: Reduces radiated emissions by >15 dB and prevents MCU reset caused by supply rail perturbation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CAHE3_B/I | Same electrical specs; RoHS-compliant but not halogen-free; uses matte tin plating without halogen restriction. | Preferred for commercial-grade industrial equipment where halogen content is unrestricted. | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 qualification is unnecessary. |
| SAC36CA-13-F | Same VWM/VC ratings; 600 W PPPM; DO-214AA package; not AEC-Q101 qualified. | Suitable for consumer electronics and non-automotive industrial use with identical layout compatibility. | Choose for high-volume cost-sensitive designs where automotive qualification is not mandated. |
Compared with SMBJ36CAHM3_B/I, the HE3 variant trades halogen-free status for lower unit cost in commercial applications, while the SAC36CA-13-F offers equivalent surge performance without automotive qualification - making SMBJ36CAHM3_B/I the only option meeting AEC-Q101 + halogen-free + RoHS simultaneously.
Availability
SMBJ36CAHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom power rail protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ36CAHM3_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 high-performance specifications.
The SMBJ series targets high-energy transient suppression in harsh environments - engineered specifically for automotive, industrial, and telecom applications demanding AEC-Q101 validation and repeatable clamping behavior.
FAQ
What is the clamping voltage of SMBJ36CAHM3_B/I at its rated peak pulse current?
The SMBJ36CAHM3_B/I has a maximum clamping voltage (VC) of 58.1 V at 10.3 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during surge events and is measured per ANSI/IEEE C62.35 standards. The SMBJ36CAHM3_B/I maintains this clamping performance across its full operating temperature range from -55 °C to +150 °C.
Is SMBJ36CAHM3_B/I suitable for automotive applications?
Yes, SMBJ36CAHM3_B/I is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix HM3_X. It undergoes stress testing per AEC-Q101 requirements including HTGB, HTRB, and temperature cycling. The SMBJ36CAHM3_B/I is commonly deployed in body control modules, ADAS camera interfaces, and infotainment power supplies where validated reliability under vibration, thermal shock, and extended temperature operation is mandatory.
How does the bidirectional configuration of SMBJ36CAHM3_B/I affect circuit layout?
The SMBJ36CAHM3_B/I has no polarity marking and functions identically in either orientation, simplifying PCB layout for AC-coupled or floating nodes. Unlike unidirectional TVS diodes, it eliminates the need for orientation verification during assembly and supports symmetric placement across differential pairs or transformer-coupled lines. This symmetry also enables single-part stocking for both polarities in mixed-signal designs, reducing BOM complexity without compromising protection efficacy.
What is the thermal resistance of SMBJ36CAHM3_B/I and how does it impact power dissipation?
The SMBJ36CAHM3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended copper pads (0.2" × 0.2"). This value governs steady-state power handling: at 5.0 W rated power dissipation, junction temperature rise is ~500 °C above ambient - but since SMBJ36CAHM3_B/I is intended for transient (not continuous) operation, its 600 W pulse rating dominates design considerations. Layout must follow Vishay's pad dimensions to ensure specified RθJA and avoid thermal runaway during repeated surges.
Does SMBJ36CAHM3_B/I meet industry standards for surge immunity testing?
Yes, SMBJ36CAHM3_B/I is characterized per IEC 61000-4-5 for surge immunity and meets UL 497B recognition for protector classification (file E136766). Its 600 W peak pulse power rating with 10/1000 µs waveform aligns with Level 3 (1 kV/2 Ω) and Level 4 (2 kV/2 Ω) test requirements when properly integrated with impedance-matched PCB traces and grounding. The SMBJ36CAHM3_B/I also complies with JESD22-B102 whisker testing and J-STD-020 MSL Level 1 reflow specifications.
SMBJ36CAHM3_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)
SMBJ36CAHM3_B/I FAQ
1.How can I place an order for SMBJ36CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CAHM3_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 SMBJ36CAHM3_B/I reliable?
The price and inventory of SMBJ36CAHM3_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 SMBJ36CAHM3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ36CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CAHM3_B/I?
SMBJ36CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CAHM3_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 SMBJ36CAHM3_B/I?
For technical support, including SMBJ36CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CAHM3_B/I requirements.
6.How does Aetrix verify that SMBJ36CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ36CAHM3_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 SMBJ36CAHM3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ36CAHM3_B/I?
All SMBJ36CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CAHM3_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 SMBJ36CAHM3_B/I part is unused and in its original packaging.
Return procedure for SMBJ36CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CAHM3_B/I Tags
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Diodes Incorporated
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