My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMB10J8.0AHM3/I
- Part No.:
- SMB10J8.0AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J8.0AHM3/I.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,550
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMB10J8.0AHM3/I 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 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage (VC) at 50 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive ECUs, industrial sensor interfaces, and power supply input stages.
For engineers reviewing the SMB10J8.0AHM3/I datasheet, SMB10J8.0AHM3/I pinout, SMB10J8.0AHM3/I application, or SMB10J8.0AHM3/I equivalent, key selection criteria include clamping performance under 50 A surge, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes. Its unidirectional polarity provides forward conduction path during overvoltage events while maintaining low leakage (<1.0 μA at 8.0 V).
Thermal design is supported by RθJA = 72 °C/W (typ.) and RθJL = 20 °C/W (typ.), allowing reliable operation up to TJ = 150 °C. The device meets MSL level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins; sets threshold for protection activation on 5–12 V DC rails. |
| VBR min/max | 8.89 V / 9.83 V at 1.0 mA - Confirmed breakdown range ensures consistent turn-on behavior across production lots. |
| VC @ IPPM | 13.6 V at 50 A - Clamping voltage limits downstream IC stress during 10/1000 μs surge; critical for MOSFET gate or microcontroller I/O protection. |
| PPPM | 1000 W - Peak pulse power handling capacity defines energy absorption capability for transient events per IEEE C62.35. |
| ID @ VWM | <1.0 μA - Ultra-low reverse leakage preserves battery life and signal integrity in always-on sensor circuits. |
| TJ max | +150 °C - Enables use in under-hood automotive environments and thermally constrained industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.130" footprint; compatible with IPC-7351B land patterns. |
Pinout & Package
SMB10J8.0AHM3/I is housed in an SMB (DO-214AA) plastic package with two terminals: cathode (marked with color band) and anode. The matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards and pass JESD 201 Class 2 whisker testing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when voltage exceeds VBR. |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness - required for engine control, ADAS, and body electronics. |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JEDEC JS709E environmental requirements without compromising thermal or electrical performance. |
| Low profile SMB package | Height ≤ 0.086" (2.20 mm) enables use in space-constrained modules such as telematics units and motor drivers. |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C - eliminates baking requirements and supports high-volume SMT manufacturing. |
| Glass-passivated junction | Enhances long-term stability and reduces parameter drift under thermal stress versus epoxy-passivated alternatives. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and LDO input to clamp transients before regulation stage. Use Value: Limits clamped voltage to 13.6 V, preventing damage to 16 V-rated input capacitors and ensuring uninterrupted MCU operation during 100 V/50 ms load dump events. |
Use Scenario: Shielding analog outputs of pressure sensors in factory automation systems from EFT and surge coupling. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to shunt fast transients before reaching op-amp signal conditioning circuitry. Use Value: Sub-1 ns response and 1.0 μA leakage preserve millivolt-level signal fidelity while surviving 4 kV EFT bursts per IEC 61000-4-4. |
| DC-DC Converter Input Protection | USB Power Delivery Line Protection |
Use Scenario: Safeguarding buck converter inputs in telecom power supplies exposed to lightning-induced surges on PoE or AC/DC front-ends. IC Role / Device Role / Timing Role: Primary transient suppressor upstream of input filter capacitor and controller IC. Use Value: 1000 W PPPM rating absorbs 10/1000 μs surges up to 50 A without degradation, maintaining converter uptime in outdoor base stations. |
Use Scenario: Protecting VBUS line in USB-C PD ports from hot-plug transients and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between connector and PD controller to clamp overshoot during plug insertion. Use Value: 8.0 V VWM aligns with USB PD 5 V/9 V/15 V profiles; 13.6 V VC prevents latch-up in USB PD controllers rated to 15 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0AHE3/A | Same VWM (8.0 V), VBR (8.89–9.83 V), and PPPM (1000 W); RoHS-compliant but not halogen-free (E3 vs HM3). | Lacks AEC-Q101 qualification and halogen-free certification; suitable for commercial-grade industrial equipment only. | Select when automotive qualification and halogen-free compliance are not required, and cost optimization is prioritized. |
| SMAJ8.0A-M3 | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM and VBR range; halogen-free RoHS (M3 suffix). | Insufficient for 50 A surge events; limited to lower-energy applications like consumer USB ports or low-power sensors. | Choose only for space-constrained designs where peak surge energy is ≤400 W and automotive qualification is unnecessary. |
Compared with SMB10J8.0AHM3/I, SMBJ8.0AHE3/A offers identical electrical protection but lacks halogen-free and AEC-Q101 credentials, while SMAJ8.0A-M3 trades power handling and qualification for smaller footprint - making SMB10J8.0AHM3/I the sole option meeting full automotive and environmental compliance at 1000 W rating.
Availability
SMB10J8.0AHM3/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and DC-DC converter designs requiring stable component supply with guaranteed AEC-Q101 qualification and halogen-free compliance.
Supply support for SMB10J8.0AHM3/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power density, and automotive-grade validation.
The SMB10J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 and robust surge immunity.
FAQ
What is the clamping voltage of SMB10J8.0AHM3/I at its rated peak pulse current?
The SMB10J8.0AHM3/I has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current (IPPM) of 50 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable voltage limiting during surge events - a critical parameter for protecting downstream 16 V-rated components in automotive and industrial systems. The SMB10J8.0AHM3/I maintains this clamping performance across its qualified operating temperature range.
Is SMB10J8.0AHM3/I qualified for automotive applications?
Yes, SMB10J8.0AHM3/I is AEC-Q101 qualified, as confirmed by Vishay's documentation and indicated by the "HM3" suffix (halogen-free, RoHS-compliant, and AEC-Q101 qualified). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114. This makes SMB10J8.0AHM3/I suitable for under-hood and chassis-mounted automotive modules such as body control units, lighting drivers, and ADAS sensor interfaces.
What does the "HM3" suffix mean in SMB10J8.0AHM3/I?
The "HM3" suffix in SMB10J8.0AHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Specifically, "H" indicates AEC-Q101 qualification, "M" signifies halogen-free molding compound per IEC 61249-2-21, and "3" confirms RoHS compliance. This triple certification distinguishes SMB10J8.0AHM3/I from commercial-grade variants (e.g., E3) and ensures suitability for environmentally regulated and safety-critical automotive and industrial deployments.
Can SMB10J8.0AHM3/I be used in bidirectional configurations?
No, SMB10J8.0AHM3/I is a unidirectional TVS diode, as indicated by its part number structure (no "C" suffix) and electrical specifications - it features defined cathode/anode polarity with a visible band marking the cathode. For bidirectional protection, Vishay offers the SMB8J8.0CA variant (800 W, 13.6 V VC), which lacks polarity and handles symmetrical transients. Using SMB10J8.0AHM3/I in bidirectional roles would result in forward conduction during negative excursions and potential failure.
What is the thermal resistance of SMB10J8.0AHM3/I, and how does it affect layout?
SMB10J8.0AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W and junction-to-lead (RθJL) of 20 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C under 1000 W surge conditions, PCB layout must provide adequate copper area and thermal vias - undersized pads increase junction temperature and risk parametric shift or catastrophic failure. Vishay specifies minimum pad dimensions in the package drawing for reliable thermal performance.
SMB10J8.0AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 73.5A
- 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)
SMB10J8.0AHM3/I FAQ
1.How can I place an order for SMB10J8.0AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J8.0AHM3/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 SMB10J8.0AHM3/I reliable?
The price and inventory of SMB10J8.0AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J8.0AHM3/I is usually 5 days.
3.What payment methods are accepted for SMB10J8.0AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J8.0AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J8.0AHM3/I?
SMB10J8.0AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J8.0AHM3/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 SMB10J8.0AHM3/I?
For technical support, including SMB10J8.0AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J8.0AHM3/I requirements.
6.How does Aetrix verify that SMB10J8.0AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMB10J8.0AHM3/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 SMB10J8.0AHM3/I meets industry standards.
7.What is the process for return or replacement of SMB10J8.0AHM3/I?
All SMB10J8.0AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J8.0AHM3/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 SMB10J8.0AHM3/I part is unused and in its original packaging.
Return procedure for SMB10J8.0AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J8.0AHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
