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Vishay General Semiconductor - Diodes Division SMB10J5.0AHM3_B/I
- Part No.:
- SMB10J5.0AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J5.0AHM3_B/I.pdf
- Description:
- 1KW,5.0V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,334
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Product details
Overview
SMB10J5.0AHM3_B/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection with 1000 W peak pulse power (10/1000 µs), 5.0 V stand-off voltage, and 9.2 V clamping voltage at 108.7 A peak pulse current. It serves as primary overvoltage protection on DC power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMB10J5.0AHM3_B/I datasheet, SMB10J5.0AHM3_B/I pinout, SMB10J5.0AHM3_B/I application, or SMB10J5.0AHM3_B/I equivalent, this part delivers AEC-Q101 qualified reliability, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for under-hood automotive designs requiring robust ESD and load-dump immunity.
Technical Context
This TVS diode operates as a clamping device triggered by reverse-biased avalanche breakdown above its 6.4–7.07 V breakdown voltage range (at 10 mA test current). Its unidirectional polarity enables integration into DC-biased circuits without interfering with forward conduction paths.
Thermal performance is defined by 20 °C/W junction-to-lead thermal resistance and 72 °C/W junction-to-ambient (on 5.0 mm × 5.0 mm copper pads), supporting sustained operation up to +150 °C junction temperature. The glass-passivated chip junction ensures stable leakage (<1000 µA at 5.0 V) and fast response time (<1 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 5.0 V - maximum continuous reverse voltage before significant leakage; sets operating margin below clamping threshold |
| Breakdown Voltage (VBR) | 6.4–7.07 V at 10 mA - defines precise avalanche initiation point for predictable turn-on during transients |
| Clamping Voltage (VC) | 9.2 V at 108.7 A IPPM - limits downstream voltage stress during 1000 W surge events |
| Peak Pulse Power (PPPM) | 1000 W (10/1000 µs) - supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-ground) |
| Peak Pulse Current (IPPM) | 108.7 A - quantifies maximum surge current the device can shunt without failure |
| Junction Temperature Range | −55 °C to +150 °C - enables deployment in engine control modules and industrial motor drives |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Case meets UL 94 V-0 flammability rating. Polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit (e.g., GND or return path) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side (e.g., +5 V rail); color band identifies this end |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMB package | Enables automated placement in space-constrained automotive PCBs (max height 2.20 mm) |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without baking preconditioning |
| 1000 W peak pulse power | Provides single-event surge handling exceeding ISO 7637-2 Pulse 5a (load dump) requirements |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics per stress test standards |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protects microcontroller I/O and CAN transceiver power pins from load-dump transients during alternator regulation faults. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between 5 V supply rail and ground. Use Value: Limits voltage excursion to ≤9.2 V during 1000 W surges, preventing latch-up or gate oxide damage in downstream ICs. |
Use Scenario: Shields analog front-end amplifiers and ADC inputs from ESD events and switching noise in factory-floor pressure sensors. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on 5 V sensor excitation line. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) within <1 ns while maintaining <1000 µA leakage at 5.0 V. |
| Telecom Power Supply Input | Consumer USB-C Port Protection |
Use Scenario: Guards AC/DC adapter output stage against lightning-induced surges entering via PoE or auxiliary DC input. IC Role / Device Role / Timing Role: Primary overvoltage clamp on +5 V/12 V secondary-side distribution bus. Use Value: Absorbs 10/1000 µs surges up to 1000 W without degradation, preserving hold-up capacitor integrity. |
Use Scenario: Safeguards USB-C CC logic and VBUS detection circuitry from hot-plug transients and cable ESD. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line upstream of USB PD controller. Use Value: Maintains 5.0 V system compatibility while clamping VBUS spikes to 9.2 V, avoiding false overvoltage shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0AHE3_A/H | Same SMB package, identical VWM (5.0 V) and VC (9.2 V), but rated for 600 W PPPM (vs. 1000 W) | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); not suitable for ISO 7637-2 Pulse 5a | Select when cost optimization outweighs surge headroom requirement and layout space allows derating |
| SAC5.0 | Same 5.0 V VWM but SOD-123 package (smaller footprint), 500 W PPPM, and higher VC (14.5 V) | Lower power handling and higher clamping reduce protection margin for sensitive 3.3 V/5 V logic | Choose only for space-constrained consumer boards where full 1000 W capability is unnecessary |
Compared with SMBJ5.0AHE3_A/H and SAC5.0, SMB10J5.0AHM3_B/I provides 67% higher surge power rating and 5.3 V lower clamping voltage - directly enabling compliance with stringent automotive load-dump standards without additional series impedance.
Availability
SMB10J5.0AHM3_B/I is available at Aetrix Electronics and suitable for automotive powertrain systems, industrial sensor nodes, and telecom infrastructure equipment requiring stable component supply with AEC-Q101 traceability and halogen-free compliance.
Supply support for SMB10J5.0AHM3_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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The SMB10J series targets high-power transient suppression in harsh environments, with design focus on AEC-Q101 qualification, low clamping ratio, and robust thermal performance in compact surface-mount packages.
FAQ
What is the clamping voltage of SMB10J5.0AHM3_B/I at its rated peak pulse current?
The SMB10J5.0AHM3_B/I has a maximum clamping voltage (VC) of 9.2 V at 108.7 A peak pulse current (IPPM), measured under standardized 10/1000 µs waveform conditions. This value ensures protected circuits remain below critical voltage thresholds during high-energy transients. The SMB10J5.0AHM3_B/I achieves this with low incremental surge resistance, minimizing voltage overshoot beyond VC.
Is SMB10J5.0AHM3_B/I suitable for automotive applications?
Yes, SMB10J5.0AHM3_B/I is AEC-Q101 qualified and specifically designed for automotive use, including engine control units and body electronics. Its halogen-free construction (HM3 suffix), MSL Level 1 rating, and guaranteed operation from −55 °C to +150 °C make it appropriate for under-hood environments. The SMB10J5.0AHM3_B/I meets ISO 7637-2 Pulse 5a load-dump immunity requirements when properly mounted on recommended copper pad areas.
How does the SMB10J5.0AHM3_B/I differ from the SMBJ5.0A series?
The SMB10J5.0AHM3_B/I delivers 1000 W peak pulse power versus 600 W for standard SMBJ5.0A variants, enabling higher surge energy absorption. It also features tighter VBR tolerance (6.4–7.07 V vs. typical 6.4–7.25 V) and lower clamping voltage (9.2 V vs. 9.5 V). The SMB10J5.0AHM3_B/I uses HM3 suffix indicating halogen-free, RoHS-compliant, and AEC-Q101 qualified construction - distinguishing it from commercial-grade SMBJ5.0A-E3 variants.
What is the thermal resistance specification for SMB10J5.0AHM3_B/I?
The SMB10J5.0AHM3_B/I has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. These values enable reliable power dissipation during repetitive surge events and define minimum PCB copper area requirements. Thermal performance directly impacts the SMB10J5.0AHM3_B/I's ability to sustain operation at +150 °C junction temperature.
Does SMB10J5.0AHM3_B/I have polarity marking, and how is it identified?
Yes, SMB10J5.0AHM3_B/I is unidirectional and features a visible cathode band on the SMB (DO-214AA) package body. The banded end corresponds to the cathode terminal, which must be connected toward the higher-potential side of the protected circuit (e.g., +5 V rail), while the anode connects to ground or return. This polarity marking is consistent across all Vishay SMB10J unidirectional devices and is verified per JESD 22-B102 solderability standards.
SMB10J5.0AHM3_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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 108.7A
- Power - Peak Pulse:
- 1000W (1kW)
- 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)
SMB10J5.0AHM3_B/I FAQ
1.How can I place an order for SMB10J5.0AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J5.0AHM3_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 SMB10J5.0AHM3_B/I reliable?
The price and inventory of SMB10J5.0AHM3_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 SMB10J5.0AHM3_B/I is usually 5 days.
3.What payment methods are accepted for SMB10J5.0AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J5.0AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J5.0AHM3_B/I?
SMB10J5.0AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J5.0AHM3_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 SMB10J5.0AHM3_B/I?
For technical support, including SMB10J5.0AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J5.0AHM3_B/I requirements.
6.How does Aetrix verify that SMB10J5.0AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All SMB10J5.0AHM3_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 SMB10J5.0AHM3_B/I meets industry standards.
7.What is the process for return or replacement of SMB10J5.0AHM3_B/I?
All SMB10J5.0AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J5.0AHM3_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 SMB10J5.0AHM3_B/I part is unused and in its original packaging.
Return procedure for SMB10J5.0AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J5.0AHM3_B/I Tags
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