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Vishay General Semiconductor - Diodes Division SMB10J5.0AHE3/5B
- Part No.:
- SMB10J5.0AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J5.0AHE3/5B.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB10J5.0AHE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 1000 W peak pulse power (10/1000 µs), 108.7 V clamping voltage at 100 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMB10J5.0AHE3/5B datasheet, SMB10J5.0AHE3/5B pinout, SMB10J5.0AHE3/5B application, or SMB10J5.0AHE3/5B equivalent, key selection criteria include clamping performance under 100 A surge, unidirectional polarity with cathode band marking, RoHS-compliant matte tin terminals, MSL Level 1 reflow compatibility, and junction temperature range of –55 °C to +150 °C.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert transient energy away from downstream ICs or MOSFETs. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1000 µA at VWM), while low incremental surge resistance enables effective clamping during fast transients (response time <1 ns).
The device is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits thermal resistance of 72 °C/W (junction-to-ambient, on 5.0 mm × 5.0 mm copper pads). Its unidirectional configuration requires correct cathode orientation-marked by a band-and is not interchangeable with bidirectional variants like SMB8J5.0CA without circuit redesign.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR min/max | 6.40 V / 7.07 V at 10 mA - Confirmed avalanche onset range; ensures reliable triggering above nominal supply. |
| VC @ IPPM | 108.7 V at 100 A - Clamped voltage during full-rated 10/1000 µs surge; determines maximum stress on protected device. |
| PPPM | 1000 W - Peak pulse power handling per standard waveform; validates robustness against IEC 61000-4-5 Level 4 surges. |
| IR @ VWM | ≤1000 µA - Reverse leakage at stand-off voltage; critical for low-power sensor or battery-backed circuits. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by a single color band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; completes shunt path during clamping. |
| Cathode | Reverse-biased terminal / Surge input node | Connected to protected line (e.g., 5 V rail); avalanche conduction initiates here when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without popcorn cracking or delamination. |
| Low profile SMB package | Enables automated placement in space-constrained layouts (max height 2.20 mm) while maintaining 1000 W surge capability. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance. |
| RoHS-compliant & halogen-free option | HE3 suffix confirms compliance with EU RoHS Directive 2011/65/EU and JEDEC JS709E material restrictions. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller power inputs in vehicle infotainment head units exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt clamping element placed directly at MCU VDD pin to clamp transients before they propagate into silicon. Use Value: Limits voltage excursion to ≤108.7 V during 100 A surges, preventing latch-up or gate oxide damage in 5 V logic devices. | Use Scenario: Safeguarding analog output lines of pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional protection is not used; SMB10J5.0AHE3/5B provides unidirectional clamping from signal line to ground. Use Value: Maintains signal integrity with <1000 µA leakage at 5 V, avoiding offset errors in 16-bit ADC front-ends. |
| Consumer USB Port ESD Protection | Telecom DC Power Input Stage |
Use Scenario: Secondary-level surge suppression on VBUS line of USB-C receptacles in portable docking stations. IC Role / Device Role / Timing Role: Coordinated clamping stage downstream of primary polymer PTC and upstream of USB switch IC. Use Value: Responds in <1 ns to meet IEC 61000-4-2 Level 4 (15 kV air) requirements while surviving repetitive 10/1000 µs events. | Use Scenario: Front-end protection of 48 V DC input in telecom remote radio units subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Not applicable as standalone solution for 48 V - SMB10J5.0AHE3/5B is selected only for 5 V auxiliary rails within same system. Use Value: Enables compact, AEC-Q101-qualified protection for FPGA configuration supplies or management MCU rails sharing chassis ground. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A-E3/52 | Same SMB package, identical VWM/VBR/VC specs, but commercial-grade (non-AEC-Q101) and supplied in 7" tape. | Lacks automotive qualification; suitable for industrial or consumer designs where AEC-Q101 is not mandated. | Select SMBJ5.0A-E3/52 when cost sensitivity outweighs automotive reliability requirements and volume packaging matches production line setup. |
| 1.5SMC5.0A | Higher-power SMC package (1500 W PPPM), same 5.0 V VWM, but larger footprint (7.11 mm × 6.22 mm vs. SMB's 4.57 mm × 3.94 mm). | Requires PCB layout change; better suited for systems needing higher single-pulse energy absorption. | Choose 1.5SMC5.0A only if surge threat exceeds 1000 W or thermal dissipation demands larger copper area than SMB allows. |
Compared with SMBJ5.0A-E3/52 and 1.5SMC5.0A, SMB10J5.0AHE3/5B uniquely combines AEC-Q101 qualification, 13" tape packaging for high-volume SMT lines, and SMB footprint - making it optimal for automotive Tier 1 suppliers requiring traceable, qualified components with scalable logistics.
Availability
SMB10J5.0AHE3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and consumer USB power delivery systems requiring stable component supply, AEC-Q101 validation, and RoHS/halogen-free compliance.
Supply support for SMB10J5.0AHE3/5B 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, power density, and application-specific qualification.
The SMB10J series is part of Vishay's TRANSZORB® TVS platform engineered for high-power-density transient suppression in automotive and industrial environments where space, thermal performance, and qualification rigor are critical.
FAQ
What is the clamping voltage of SMB10J5.0AHE3/5B at its rated peak pulse current?
The SMB10J5.0AHE3/5B has a maximum clamping voltage (VC) of 108.7 V at 100 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured across the device terminals during full-rated surge conduction and defines the upper voltage limit imposed on protected circuitry. The SMB10J5.0AHE3/5B maintains this clamping performance consistently due to its glass-passivated junction and low incremental surge resistance.
Is SMB10J5.0AHE3/5B suitable for bidirectional signal line protection?
No, SMB10J5.0AHE3/5B is a unidirectional TVS diode and must be oriented with its cathode band toward the protected line - it conducts only in reverse bias. For bidirectional protection (e.g., RS-485, USB D+/D−), a symmetric device like SMB8J5.0CA is required. Using SMB10J5.0AHE3/5B on AC-coupled or floating lines risks forward conduction failure or inadequate clamping. The SMB10J5.0AHE3/5B datasheet explicitly specifies unidirectional polarity.
Does SMB10J5.0AHE3/5B meet automotive reliability standards?
Yes, SMB10J5.0AHE3/5B carries the HE3 suffix, confirming it is RoHS-compliant and AEC-Q101 qualified. This includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge per JESD22-A114. The qualification applies specifically to the SMB10J5.0AHE3/5B variant - not generic SMB10J5.0A - and is documented in Vishay's certification reports referenced in datasheet 88422.
What is the thermal resistance of SMB10J5.0AHE3/5B, and how does it affect PCB layout?
SMB10J5.0AHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C during repeated surges, designers must allocate sufficient copper area and consider thermal vias. Reducing pad size increases RθJA nonlinearly - e.g., halving pad area may raise RθJA by >40%. The SMB10J5.0AHE3/5B package outline specifies minimum pad dimensions of 0.086" × 0.060".
Can SMB10J5.0AHE3/5B replace SMBJ5.0A in an existing design?
SMB10J5.0AHE3/5B is pin-compatible with SMBJ5.0A and shares identical electrical specs (VWM, VBR, VC, PPPM), but adds AEC-Q101 qualification and ships in 13" tape (5B). If the original design uses SMBJ5.0A-E3/52, no PCB changes are needed - only procurement and qualification updates. However, verify that the application requires AEC-Q101; for non-automotive use, SMBJ5.0A-E3/52 remains functionally equivalent and lower-cost. The SMB10J5.0AHE3/5B datasheet confirms direct substitution within the same SMB footprint.
SMB10J5.0AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J5.0AHE3/5B FAQ
1.How can I place an order for SMB10J5.0AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J5.0AHE3/5B 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 SMB10J5.0AHE3/5B reliable?
The price and inventory of SMB10J5.0AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J5.0AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J5.0AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J5.0AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J5.0AHE3/5B?
SMB10J5.0AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J5.0AHE3/5B 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 SMB10J5.0AHE3/5B?
For technical support, including SMB10J5.0AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J5.0AHE3/5B requirements.
6.How does Aetrix verify that SMB10J5.0AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J5.0AHE3/5B 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 SMB10J5.0AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J5.0AHE3/5B?
All SMB10J5.0AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J5.0AHE3/5B, 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 SMB10J5.0AHE3/5B part is unused and in its original packaging.
Return procedure for SMB10J5.0AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J5.0AHE3/5B Tags
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