My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ8.0A-M3/52
;;2.jpg)
- Part No.:
- SMBJ8.0A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ8.0A-M3/52.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,207
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ8.0A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection of DC power rails and signal lines. It features a 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 1.0 mA, 13.6 V maximum clamping voltage (VC) at 44.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in consumer power supplies, industrial I/O interfaces, and automotive sensor front-ends.
For engineers reviewing the SMBJ8.0A-M3/52 datasheet, SMBJ8.0A-M3/52 pinout, SMBJ8.0A-M3/52 application, or SMBJ8.0A-M3/52 equivalent, key selection criteria include its unidirectional polarity, SMB (DO-214AA) package compatibility with automated SMT assembly, halogen-free RoHS compliance (M3 suffix), and verified clamping performance under repetitive surge conditions per IEC 61000-4-5.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 8.0 V, it avalanches to limit transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while thermal resistance RθJA = 100 °C/W supports operation up to TJ = 150 °C.
The device responds within <1 ps to transients and maintains clamping integrity across 0.01% duty cycle repetitive surges. Its 100 A IFSM rating (8.3 ms half-sine) enables resilience against high-energy inductive switching events, and M3 suffix confirms halogen-free molding compound meeting JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 8.89 V / 9.83 V at 1.0 mA - Confirmed avalanche onset range; ensures reliable triggering without premature conduction. |
| VC @ IPPM | 13.6 V at 44.1 A - Clamped voltage during 600 W 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling capacity; validates suitability for IEC 61000-4-5 Level 4 (4 kV) surge testing. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms); supports protection against inductive kick in relay/MOSFET drive circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive or enclosed industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized 2-pin SMT outline with 5.0 mm × 5.0 mm copper pad thermal design; compatible with IPC-7351B footprint. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-banded unidirectional configuration. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (non-banded end) | Current entry during forward conduction; grounded reference in typical clamping topology | Connected to system ground or low-impedance return path to enable effective shunt clamping of positive transients on VCC lines. |
| Cathode (banded end) | Transient voltage sensing and clamping node | Connected to protected line (e.g., 12 V rail or CAN_H); avalanche conduction initiates here when VAK > VBR, diverting surge current to anode/ground. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validated clamping capability for IEC 61000-4-5 surge immunity up to 4 kV in industrial and automotive subsystems. |
| 13.6 V clamping voltage at 44.1 A | Ensures downstream ICs rated for ≤16 V absolute maximum survive full-rated surge without latch-up or damage. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and JESD201 Class 2 whisker resistance for long-term reliability. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow without popcorn cracking or delamination in high-volume SMT production. |
| Low leakage: ≤1.0 µA at 8.0 V | Minimizes standby power loss in battery-backed systems and avoids false triggering in high-impedance sensor bias networks. |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: 12 V supply line exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple in vehicle BCMs. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and chassis ground to clamp transients above 13.6 V. Use Value: Prevents damage to LDO regulators and microcontrollers during 35 V/100 ms load dump events while maintaining <1 µA leakage at nominal 12 V. |
Use Scenario: 24 V digital input channel receiving signals from field sensors subject to inductive switching noise. IC Role / Device Role / Timing Role: Standoff protection element on input terminal block, clamping fast-rising spikes before they reach optocoupler or MCU GPIO. Use Value: Limits voltage seen by isolation barrier to ≤13.6 V during 1 kV/500 A surge (IEC 61000-4-5), preserving signal integrity and isolation lifetime. |
| Consumer USB-C Power Delivery Adapter Output | Telecom Base Station DC Power Distribution |
Use Scenario: 5–20 V output rail of USB PD adapter vulnerable to ESD and hot-swap transients during cable insertion. IC Role / Device Role / Timing Role: Final-stage TVS on secondary-side output, positioned after DC-DC converter and before connector. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <13.6 V within <1 ps, preventing latch-up in USB PD controller and protecting Type-C CC logic. |
Use Scenario: -48 V DC distribution bus feeding RF amplifiers and backhaul radios, exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS on each branch feed, referenced to system ground plane. Use Value: Absorbs 600 W surges without degradation, enabling compliance with Telcordia GR-1089-CORE Zone 3 requirements while maintaining <1 µA leakage at -48 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3). | Acceptable where halogen-free mandate is absent (e.g., non-EU commercial equipment). | Select SMBJ8.0A-E3/52 for cost-sensitive, non-automotive industrial designs without material compliance constraints. |
| SMCJ8.0A-M3 | Higher 1500 W PPPM, larger SMC (DO-214AB) package, same VWM/VC ratings. | Used where higher surge margin or board-level derating is required (e.g., outdoor telecom cabinets). | Choose SMCJ8.0A-M3 only if layout allows larger footprint and 1500 W rating is explicitly required by system-level surge test plan. |
Compared with SMBJ8.0A-E3/52, the SMBJ8.0A-M3/52 adds halogen-free compliance without sacrificing clamping performance or thermal capability; versus SMCJ8.0A-M3, it trades surge headroom for space-constrained PCB layouts where 600 W meets IEC 61000-4-5 Level 3 requirements.
Availability
SMBJ8.0A-M3/52 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and telecom power distribution systems requiring stable component supply and halogen-free material compliance.
Supply support for SMBJ8.0A-M3/52 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 efficiency, and AEC-Q qualification.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping voltage and long-term stability under surge stress are critical.
FAQ
What is the maximum clamping voltage of SMBJ8.0A-M3/52 under surge conditions?
The SMBJ8.0A-M3/52 has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 44.1 A using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and guarantees that protected downstream circuitry will not experience voltages exceeding 13.6 V during a full 600 W transient event - a critical parameter for ensuring compatibility with 15 V-tolerant ICs and regulators in the SMBJ8.0A-M3/52 application space.
Is SMBJ8.0A-M3/52 suitable for automotive applications?
Yes, the SMBJ8.0A-M3/52 is halogen-free and RoHS-compliant, and the base SMBJ8.0A-M3 part is AEC-Q101 qualified when ordered with HM3 suffix (e.g., SMBJ8.0AHM3_B/H). While SMBJ8.0A-M3/52 itself carries the commercial-grade M3 suffix, its construction - including glass-passivated junction, MSL Level 1 rating, and 150 °C TJ max - supports deployment in non-safety-critical automotive subsystems such as infotainment power rails and body control module inputs where the SMBJ8.0A-M3/52 provides validated surge immunity.
How does the M3 suffix differ from E3 in SMBJ8.0A-M3/52?
The M3 suffix in SMBJ8.0A-M3/52 denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance, whereas E3 indicates RoHS compliance without halogen-free assurance. Both share identical electrical specifications, thermal performance, and SMB package dimensions. The SMBJ8.0A-M3/52 is specified for environmentally regulated markets (e.g., EU automotive Tier 1 supply chains), while SMBJ8.0A-E3/52 serves general industrial applications where halogen content is unrestricted - making the distinction material-specific, not functional.
What is the reverse leakage current of SMBJ8.0A-M3/52 at its stand-off voltage?
At the rated stand-off voltage (VWM) of 8.0 V and ambient temperature of 25 °C, the SMBJ8.0A-M3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA. This low leakage ensures minimal power loss in always-on circuits and prevents false triggering in high-impedance monitoring paths - a key advantage of the SMBJ8.0A-M3/52 in battery-powered sensor nodes and precision analog front-ends where quiescent current budget is tightly constrained.
Can SMBJ8.0A-M3/52 be used in bidirectional protection configurations?
No - SMBJ8.0A-M3/52 is a unidirectional TVS diode, identified by its cathode band marking and specified VBR/VC parameters for reverse-biased operation only. For bidirectional protection (e.g., AC lines or differential data buses), Vishay offers the SMBJ8.0CA variant. Using SMBJ8.0A-M3/52 in bidirectional roles risks forward conduction during negative transients and failure to clamp - so correct polarity orientation and application alignment are essential for reliable SMBJ8.0A-M3/52 implementation.
SMBJ8.0A-M3/52 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 44.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ8.0A-M3/52 FAQ
1.How can I place an order for SMBJ8.0A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ8.0A-M3/52 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 SMBJ8.0A-M3/52 reliable?
The price and inventory of SMBJ8.0A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ8.0A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ8.0A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ8.0A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ8.0A-M3/52?
SMBJ8.0A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ8.0A-M3/52 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 SMBJ8.0A-M3/52?
For technical support, including SMBJ8.0A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ8.0A-M3/52 requirements.
6.How does Aetrix verify that SMBJ8.0A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ8.0A-M3/52 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 SMBJ8.0A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ8.0A-M3/52?
All SMBJ8.0A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ8.0A-M3/52, 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 SMBJ8.0A-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ8.0A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ8.0A-M3/52 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
