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Vishay General Semiconductor - Diodes Division SMBJ36CAHE3_B/H
- Part No.:
- SMBJ36CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CAHE3_B/H.pdf
- Description:
- 600W,36V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,063
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Product details
Overview
SMBJ36CAHE3_B/H 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 a 36 V standoff voltage (VWM), 40.0–44.2 V breakdown range (VBR at 1.0 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 - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ36CAHE3_B/H datasheet, SMBJ36CAHE3_B/H pinout, SMBJ36CAHE3_B/H application, or SMBJ36CAHE3_B/H equivalent, key selection criteria include bidirectional surge suppression capability, AEC-Q101 qualification status, clamping voltage margin relative to protected circuit rail, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both directions, enabling use on AC-coupled or floating signal lines without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 150 °C maximum junction temperature supports operation in thermally constrained environments.
The SMBJ36CAHE3_B/H delivers 600 W transient power handling per IEC 61000-4-5 with 10/1000 µs waveform, and exhibits fast response time (<1.0 ps) to ESD and switching-induced surges. Its MSL Level 1 rating (260 °C peak reflow) and matte tin-plated leads ensure robust manufacturability in high-volume PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for safe DC bias on protected line. |
| VBR min/max | 40.0 V / 44.2 V at 1.0 mA - Confirmed breakdown threshold range; ensures reliable triggering above system nominal voltage. |
| VC @ IPPM | 58.1 V at 10.3 A - Clamped voltage during 600 W transient; defines worst-case overvoltage seen by downstream ICs. |
| PPPM | 600 W - Peak pulse power rating with 10/1000 µs waveform; validates compliance with IEC 61000-4-5 Level 4 surge immunity. |
| IPPM | 10.3 A - Peak pulse current corresponding to VC; determines minimum trace width and fuse coordination requirements. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive or enclosed industrial enclosures. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" pads; informs derating above 25 °C ambient. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), 0.155" × 0.130" × 0.086". RoHS-compliant, halogen-free, AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Acts as cathode during positive surge; connects to line being protected without polarity constraint. |
| Cathode | Transient current entry (bidirectional) | Acts as anode during negative surge; symmetric terminal enables AC or floating node protection. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates robustness against IEC 61000-4-5 surge events up to Level 4 (4 kV line-to-line, 2 kV line-to-ground). |
| AEC-Q101 qualified (HE3 suffix) | Confirms reliability for automotive electronics including body control modules, infotainment power rails, and ADAS sensor interfaces. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected ICs - critical for 3.3 V or 5 V logic interfacing with 36 V supply domains. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow without moisture sensitivity concerns or baking requirements. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) across temperature and lifetime, improving long-term protection integrity. |
Applications
| Industrial Motor Drive Control | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting gate drivers and microcontroller I/O lines from inductive kickback during MOSFET switching in 24 V DC motor controllers. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient spikes on half-bridge gate drive and feedback sensing nodes. Use Value: Limits voltage excursion to ≤58.1 V during 10.3 A surges, preventing latch-up or oxide breakdown in 3.3 V MCU GPIOs and isolated gate drivers. |
Use Scenario: Safeguarding LIN bus transceivers and power management ICs against load dump and jump-start transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Standoff-rated clamping element on 12 V supply rail and LIN data line inputs. Use Value: Withstands 600 W surges while maintaining <1.0 µA leakage at 36 V, ensuring low quiescent current and reliable wake-up functionality. |
| Telecom Power Supply Input | Industrial Sensor Signal Conditioning |
|
Use Scenario: Suppressing lightning-induced surges on primary-side DC input of 48 V telecom rectifiers and PoE injectors. IC Role / Device Role / Timing Role: First-stage overvoltage clamp ahead of bulk capacitors and upstream DC/DC converters. Use Value: Fast avalanche response (<1 ps) limits energy delivery to downstream components, reducing need for secondary TVS stages. |
Use Scenario: Shielding analog front-end amplifiers and ADC inputs in 4–20 mA loop-powered sensors exposed to field wiring transients. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) bidirectional clamp on differential sensor outputs. Use Value: Maintains signal integrity with minimal loading due to low junction capacitance and symmetrical clamping behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA-E3/52 | Commercial-grade (non-AEC-Q101), same VWM/VC/PPPM, identical SMB package. | Lacks automotive qualification; suitable for industrial/commercial power supplies but not under-hood automotive use. | Select when AEC-Q101 is not required and cost optimization is prioritized. |
| SMCJ36CAHE3_A/H | Higher power rating (1500 W), larger SMC (DO-214AB) package, same VWM and bidirectional function. | Better suited for higher-energy surges (e.g., 10/1000 µs >20 A); requires larger PCB footprint and different pad layout. | Choose when system-level surge testing exceeds 600 W or when design margin demands higher IPPM headroom. |
Compared with SMBJ36CA-E3/52, the SMBJ36CAHE3_B/H adds AEC-Q101 qualification and tighter process controls for automotive use; compared with SMCJ36CAHE3_A/H, it trades 2.5× lower surge capacity for 40% smaller board area and compatible reflow profile.
Availability
SMBJ36CAHE3_B/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power inputs, and sensor interface protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMBJ36CAHE3_B/H 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 performance.
The SMBJ series targets high-reliability transient suppression in space-constrained SMT designs, with variants optimized for automotive (HE3/HM3), commercial (E3/M3), and high-power (SMCJ/SMAJ) applications.
FAQ
What does the "CA" suffix indicate in SMBJ36CAHE3_B/H?
The "CA" suffix denotes a bidirectional configuration, meaning the SMBJ36CAHE3_B/H provides symmetrical transient voltage suppression in both polarities - essential for protecting AC-coupled signals, floating grounds, or ungrounded power rails where polarity cannot be assumed. Unlike unidirectional "A" versions, it has no cathode band marking and conducts identically in either direction above its breakdown threshold.
Is SMBJ36CAHE3_B/H suitable for automotive applications?
Yes, SMBJ36CAHE3_B/H is AEC-Q101 qualified (confirmed by HE3 suffix and Vishay documentation), making it suitable for automotive applications including body control modules, lighting drivers, and infotainment power rails. Its 150 °C maximum junction temperature, MSL Level 1 reflow rating, and validated surge performance meet stringent automotive reliability requirements.
What is the maximum clamping voltage of SMBJ36CAHE3_B/H under surge conditions?
The SMBJ36CAHE3_B/H has a maximum clamping voltage (VC) of 58.1 V at 10.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value represents the worst-case voltage imposed on the protected circuit during a full 600 W transient event and must be verified against the absolute maximum ratings of downstream components.
How does SMBJ36CAHE3_B/H differ from the unidirectional SMBJ36AHE3_B/H?
The SMBJ36CAHE3_B/H is bidirectional with symmetrical breakdown and clamping in both directions, while SMBJ36AHE3_B/H is unidirectional and conducts only when the cathode is positive relative to the anode. The "CA" version lacks polarity marking and supports AC or floating node protection; the "A" version requires correct orientation and offers slightly lower VC (53.3 V) for same IPPM.
What PCB pad layout is recommended for optimal thermal performance of SMBJ36CAHE3_B/H?
Vishay specifies mounting SMBJ36CAHE3_B/H on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power and RθJA = 100 °C/W. Smaller pads increase thermal resistance and require derating of peak power; internal copper planes or thermal vias can further improve heat dissipation in high-duty-cycle applications.
SMBJ36CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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/H FAQ
1.How can I place an order for SMBJ36CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CAHE3_B/H 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/H reliable?
The price and inventory of SMBJ36CAHE3_B/H 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/H is usually 5 days.
3.What payment methods are accepted for SMBJ36CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CAHE3_B/H?
SMBJ36CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CAHE3_B/H 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/H?
For technical support, including SMBJ36CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CAHE3_B/H requirements.
6.How does Aetrix verify that SMBJ36CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ36CAHE3_B/H 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/H meets industry standards.
7.What is the process for return or replacement of SMBJ36CAHE3_B/H?
All SMBJ36CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CAHE3_B/H, 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/H part is unused and in its original packaging.
Return procedure for SMBJ36CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CAHE3_B/H Tags
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