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Vishay General Semiconductor - Diodes Division SMBJ36AHM3_B/H
- Part No.:
- SMBJ36AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36AHM3_B/H.pdf
- Description:
- 600W,36V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,239
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Product details
Overview
SMBJ36AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive load switching transients and lightning-induced surges on power rails 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 (10/1000 µs waveform).
For engineers reviewing the SMBJ36AHM3_B/H datasheet, SMBJ36AHM3_B/H pinout, SMBJ36AHM3_B/H application, or SMBJ36AHM3_B/H equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, surge current handling under IEC 61000-4-5 Level 3/4, thermal derating above 25 °C ambient, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR and low leakage (<1.0 µA at VWM), while the low incremental surge resistance enables rapid energy absorption without thermal runaway.
The device is rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020 (260 °C peak reflow). It is halogen-free and RoHS-compliant (HM3 suffix), with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, and qualified to AEC-Q101 for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit DC rail. |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - Confirmed breakdown range defining turn-on consistency; critical for margin against false triggering. |
| VC @ IPPM | 58.1 V at 10.3 A - Clamped voltage during 10/1000 µs surge; determines maximum stress on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling capability; defines survivability against IEC 61000-4-5 10/1000 µs transients. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at standoff voltage; ensures minimal power loss and no interference in high-impedance sensor paths. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive or industrial enclosures. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; guides PCB thermal layout. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity marked by cathode band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with 1.52 mm lead width and 2.18 mm minimum terminal length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., GND or return path); conducts during forward surge events. |
| Cathode | Reverse breakdown terminal | Connected to higher-potential side (e.g., VCC or signal line); initiates clamping when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 3 (1 kV/2 kV) surges without degradation over 1000+ events. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected MOSFET gates or microcontroller I/O pins during transient events. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; compatible with high-volume automated assembly. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero defect reliability over 15-year lifetime. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; supports green manufacturing and end-of-life compliance. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: 12 V battery rail in engine control units exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp transients up to ±100 V, protecting MCU power supply inputs. Use Value: With 58.1 V clamping voltage, maintains safe margin below typical 65 V automotive LDO input rating while surviving 600 W pulses. |
Use Scenario: Analog output line (4–20 mA) from pressure sensor in factory automation PLC module. IC Role / Device Role / Timing Role: TVS connected across signal and return lines to absorb ESD (IEC 61000-4-2) and fast transients (IEC 61000-4-4). Use Value: Sub-1 µA leakage at 36 V standoff preserves signal integrity and avoids loading high-impedance current-loop receivers. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Surge Suppression |
|
Use Scenario: 48 V DC input stage of PoE-powered network switch exposed to induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Primary clamping device on main DC bus, coordinated with upstream fuse and secondary filtering. Use Value: 10.3 A IPPM and 58.1 V VC ensure compliance with IEC 61000-4-5 Level 4 (4 kV line-earth) without overstressing downstream DC/DC converters. |
Use Scenario: Brushed DC motor driver board in smart washing machine subjected to commutation spikes and ESD from user interface. IC Role / Device Role / Timing Role: TVS mounted across motor terminals to suppress inductive kickback (L·di/dt) during PWM switching. Use Value: 600 W rating handles repetitive 10/1000 µs spikes at 0.01% duty cycle; glass passivation ensures long-term stability under thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36AHE3_B/H | Same electrical specs, but RoHS-compliant commercial grade (E3) instead of halogen-free (M3); no AEC-Q101 qualification. | Lacks automotive qualification; suitable for industrial/commercial designs where halogen-free is not mandated. | Select SMBJ36AHE3_B/H if AEC-Q101 and halogen-free requirements are waived and cost optimization is prioritized. |
| SMAJ36A-HF | Lower 400 W PPPM rating, SMA package (smaller footprint), higher RθJA (150 °C/W), same VWM/VC specs. | Reduced surge margin and thermal performance; limited to lower-energy transients or space-constrained consumer boards. | Choose SMAJ36A-HF only when PCB area is critical and surge threat level is ≤ IEC 61000-4-5 Level 2 (0.5 kV). |
Compared with SMBJ36AHE3_B/H, SMBJ36AHM3_B/H adds halogen-free construction and AEC-Q101 qualification-essential for automotive Tier 1 suppliers-while SMAJ36A-HF trades surge robustness and thermal headroom for compact size, making it unsuitable for high-reliability or high-energy environments.
Availability
SMBJ36AHM3_B/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, telecom DC input surge suppression, and consumer appliance motor drive circuits requiring stable component supply across multi-year production cycles.
Supply support for SMBJ36AHM3_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, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific validation.
The SMBJ series is engineered for high-energy transient suppression in harsh environments-designed to meet automotive, industrial, and telecom surge immunity standards while supporting automated SMT manufacturing.
FAQ
What is the clamping voltage of SMBJ36AHM3_B/H at its rated peak pulse current?
The SMBJ36AHM3_B/H has a maximum clamping voltage (VC) of 58.1 V at its rated peak pulse current (IPPM) of 10.3 A under a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ36AHM3_B/H maintains this clamping performance across its qualified temperature range and after repeated surge exposures.
Is SMBJ36AHM3_B/H suitable for automotive applications?
Yes, SMBJ36AHM3_B/H is AEC-Q101 qualified (as indicated by the HM3 suffix), halogen-free, and RoHS-compliant-making it suitable for automotive powertrain, body control, and infotainment systems. Its 150 °C maximum junction temperature, MSL Level 1 rating, and validated surge performance align with ISO 16750-2 load dump and IEC 61000-4-5 requirements. The SMBJ36AHM3_B/H is explicitly listed in Vishay's automotive-grade ordering matrix.
How does the SMBJ36AHM3_B/H differ from the SMBJ36AHE3_B/H variant?
The SMBJ36AHM3_B/H differs from SMBJ36AHE3_B/H in three key ways: it uses halogen-free molding compound (M3 vs. E3), carries AEC-Q101 qualification, and has identical electrical specs (VWM = 36 V, VC = 58.1 V, PPPM = 600 W). The SMBJ36AHM3_B/H is intended for automotive and green-compliance applications, whereas SMBJ36AHE3_B/H targets commercial-grade industrial use where halogen-free and automotive qualification are not required.
What is the thermal resistance of SMBJ36AHM3_B/H, and how does it affect PCB layout?
The SMBJ36AHM3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard FR-4 PCB with no internal planes. To maintain TJ ≤ 150 °C under sustained 5.0 W power dissipation, designers must provide adequate copper area and consider airflow or ambient temperature limits. The SMBJ36AHM3_B/H thermal performance is validated per JEDEC JESD51-2.
Can SMBJ36AHM3_B/H be used in bidirectional configurations?
No, SMBJ36AHM3_B/H is a unidirectional TVS diode, as confirmed by its part number suffix "A" and Vishay documentation specifying cathode band marking. Bidirectional variants use the "CA" suffix (e.g., SMBJ36CA). Using SMBJ36AHM3_B/H in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. Always match polarity to application topology-SMBJ36AHM3_B/H is for DC-biased lines only.
SMBJ36AHM3_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:
- 1
- Bidirectional Channels:
- -
- 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)
SMBJ36AHM3_B/H FAQ
1.How can I place an order for SMBJ36AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36AHM3_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 SMBJ36AHM3_B/H reliable?
The price and inventory of SMBJ36AHM3_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 SMBJ36AHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ36AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36AHM3_B/H?
SMBJ36AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36AHM3_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 SMBJ36AHM3_B/H?
For technical support, including SMBJ36AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36AHM3_B/H requirements.
6.How does Aetrix verify that SMBJ36AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ36AHM3_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 SMBJ36AHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ36AHM3_B/H?
All SMBJ36AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36AHM3_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 SMBJ36AHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ36AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36AHM3_B/H Tags
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