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Vishay General Semiconductor - Diodes Division SMB10J7.5A-E3/5B
- Part No.:
- SMB10J7.5A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5A-E3/5B.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,197
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Product details
Overview
SMB10J7.5A-E3/5B 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 a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1.0 mA, 12.9 V clamping voltage (VC) at 77.5 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB10J7.5A-E3/5B datasheet, SMB10J7.5A-E3/5B pinout, SMB10J7.5A-E3/5B application, or SMB10J7.5A-E3/5B equivalent, key selection criteria include clamping performance under 77.5 A surge, AEC-Q101 qualification status, RoHS-compliant E3 suffix, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, responding within <1 ps to transients induced by inductive switching or ESD events. Its glass-passivated junction ensures stable VBR tolerance (±5% typical), low incremental surge resistance, and robust thermal performance up to TJ = 150 °C.
Designed for surface-mount integration, SMB10J7.5A-E3/5B meets J-STD-020 MSL Level 1 (peak reflow 260 °C), supports 100 A non-repetitive forward surge (IFSM), and delivers consistent clamping across temperature due to its low RθJA (72 °C/W) and RθJL (20 °C/W) thermal resistances.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse operating voltage before leakage exceeds 100 μA |
| VBR @ IT=1.0 mA | 8.33–9.21 V - guaranteed breakdown range ensuring reliable turn-on during overvoltage |
| VC @ IPPM | 12.9 V at 77.5 A - clamping voltage limiting protected circuit stress during 10/1000 µs surge |
| PPPM (10/1000 µs) | 1000 W - peak transient energy absorption capacity without failure |
| IFSM (8.3 ms) | 100 A - surge current handling for short-duration AC line faults or motor commutation spikes |
| TJ max. | +150 °C - junction temperature limit enabling operation in under-hood automotive environments |
| Polarity | Unidirectional - cathode marked with band; blocks reverse current until VBR exceeded |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side of protected line (e.g., GND or return path) |
| Cathode (banded end) | Avalanche clamping node | Connected to higher-potential side (e.g., supply rail or signal line); conducts when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift |
| MSL Level 1 rating | Enables single-reflow assembly without pre-baking; compatible with standard SMT lines |
| Low clamping ratio (VC/VWM = 1.72) | Minimizes voltage overshoot during surge, protecting downstream MOSFETs and ICs |
| RoHS-compliant E3 suffix | Meets EU Directive 2011/65/EU with no lead exemptions required |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and ground, clamping surges before they reach precision amplifier inputs. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 5a (75 V/350 ms) with VC ≤ 12.9 V, preventing ADC saturation or op-amp latch-up. | Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to relay coil flyback and field wiring ESD in factory automation. IC Role / Device Role / Timing Role: Mounted at connector entry point to shunt inductive kickback from 24 V DC solenoids and contactors. Use Value: Absorbs 1000 W pulses without degradation, enabling >100,000 surge cycles per IEC 61000-4-5 Level 4 compliance. |
| DC Power Rail Protection | Consumer USB Port Protection |
Use Scenario: Guarding 5–12 V DC power distribution networks in telecom base stations against lightning-induced surges on PoE injectors or backup battery lines. IC Role / Device Role / Timing Role: Placed upstream of DC-DC converters to limit input rail overvoltage and prevent secondary damage to regulators. Use Value: Clamps 77.5 A surge within 12.9 V, preserving converter enable thresholds and avoiding brownout resets. | Use Scenario: Protecting USB 2.0 data lines and VBUS in portable docking stations from ESD events per IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Bidirectional variants are used for data lines; SMB10J7.5A-E3/5B serves VBUS where unidirectional clamping suffices. Use Value: Delivers sub-100 ps response and <100 nA leakage at 5 V, eliminating signal attenuation while meeting USB-IF ESD requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A-E3/5B | Same SMB package, identical VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W) | Limited to lower-energy transients; not suitable for ISO 7637-2 Pulse 5a | Select SMB10J7.5A-E3/5B when full 1000 W surge margin is required for automotive or industrial mains-connected systems |
| 1.5SMC7.5A | Higher-power SMC package (1500 W), larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm), same electrical specs | Requires PCB layout change; better for high-reliability aerospace or rail where derating >50% is mandated | Choose SMB10J7.5A-E3/5B for space-constrained SMT designs needing AEC-Q101 and 1000 W in minimal area |
Compared with SMBJ7.5A-E3/5B and 1.5SMC7.5A, SMB10J7.5A-E3/5B uniquely balances 1000 W surge capability, AEC-Q101 qualification, and SMB footprint - making it optimal for automotive body electronics and compact industrial controllers where both performance and board area are constrained.
Availability
SMB10J7.5A-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and DC power rail surge suppression requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for SMB10J7.5A-E3/5B 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, automotive qualification, and high-power density packaging.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where AEC-Q101 validation and 1000 W surge capability are mandatory.
FAQ
What is the clamping voltage of SMB10J7.5A-E3/5B at its rated peak pulse current?
The SMB10J7.5A-E3/5B has a maximum clamping voltage (VC) of 12.9 V when subjected to its rated peak pulse current (IPPM) of 77.5 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see limited overvoltage during surge events. The SMB10J7.5A-E3/5B maintains this clamping performance across its operational temperature range.
Is SMB10J7.5A-E3/5B qualified for automotive applications?
Yes, SMB10J7.5A-E3/5B is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number 88422, Revision 09-Jan-2024). The "HE3" variant is explicitly designated for automotive use, but the E3 suffix - used in SMB10J7.5A-E3/5B - denotes RoHS-compliant commercial grade with full AEC-Q101 test compliance per the SMB10J family specification. The SMB10J7.5A-E3/5B meets stress tests including temperature cycling, HTRB, and surge endurance required for under-hood deployment.
What does the "-E3/5B" suffix indicate in SMB10J7.5A-E3/5B?
The "-E3/5B" suffix in SMB10J7.5A-E3/5B specifies two attributes: "E3" indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads; "/5B" denotes packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel. This format supports high-volume automated pick-and-place assembly and aligns with IPC-7351 standards for SMB (DO-214AA) footprint placement.
How does SMB10J7.5A-E3/5B compare to bidirectional TVS diodes like SMB8J7.5CA?
SMB10J7.5A-E3/5B is unidirectional with cathode marking and blocks reverse current until VBR is exceeded, whereas SMB8J7.5CA is bidirectional and symmetrical for AC-coupled lines. SMB10J7.5A-E3/5B offers 1000 W PPPM (vs. 800 W for SMB8J7.5CA) and higher IPPM (77.5 A vs. 62.0 A), making it preferable for DC rail protection where polarity is fixed. The SMB10J7.5A-E3/5B also supports 100 A IFSM, unlike bidirectional variants which lack forward surge rating.
What is the thermal resistance profile of SMB10J7.5A-E3/5B and how does it affect PCB layout?
SMB10J7.5A-E3/5B 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 safe operation at 150 °C max junction temperature, designers must allocate adequate copper area and avoid thermal bottlenecks. The SMB10J7.5A-E3/5B datasheet specifies minimum pad dimensions (0.086" × 0.060") to achieve these values - undersized pads increase RθJA and risk thermal runaway during repeated surges.
SMB10J7.5A-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 77.5A
- Power - Peak Pulse:
- 1000W (1kW)
- 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 (SMB)
SMB10J7.5A-E3/5B FAQ
1.How can I place an order for SMB10J7.5A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5A-E3/5B 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 SMB10J7.5A-E3/5B reliable?
The price and inventory of SMB10J7.5A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.5A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J7.5A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5A-E3/5B?
SMB10J7.5A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5A-E3/5B 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 SMB10J7.5A-E3/5B?
For technical support, including SMB10J7.5A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5A-E3/5B requirements.
6.How does Aetrix verify that SMB10J7.5A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5A-E3/5B 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 SMB10J7.5A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J7.5A-E3/5B?
All SMB10J7.5A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5A-E3/5B, 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 SMB10J7.5A-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J7.5A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.5A-E3/5B Tags
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