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Vishay General Semiconductor - Diodes Division SMB10J7.5-E3/5B
- Part No.:
- SMB10J7.5-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5-E3/5B.pdf
- Description:
- TVS DIODE 7.5VWM 14.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,109
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Product details
Overview
SMB10J7.5-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) 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 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.
For engineers reviewing the SMB10J7.5-E3/5B datasheet, SMB10J7.5-E3/5B pinout, SMB10J7.5-E3/5B application, or SMB10J7.5-E3/5B equivalent, key selection criteria include clamping performance under automotive load-dump transients, unidirectional polarity for DC rail placement, RoHS-compliant commercial-grade packaging (E3 suffix), and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream ICs or MOSFETs. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 μA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
The device is optimized for single-polarity DC systems-e.g., 5 V–12 V automotive control modules-where fast response (<1 ns), low incremental surge resistance, and repeatable clamping are critical. It is not rated for bidirectional AC line protection or sustained overvoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's nominal DC rail. |
| VBR (min/max) | 8.33 V / 9.21 V at 1.0 mA - Confirmed avalanche onset range; ensures reliable triggering above system operating voltage with margin. |
| VC @ IPPM | 12.9 V at 77.5 A - Clamped voltage during 10/1000 μs surge; defines worst-case stress on downstream components during transient events. |
| PPPM | 1000 W - Peak pulse power handling per 10/1000 μs waveform; enables protection against ISO 7637-2 Pulse 1/2a/5a surges in automotive environments. |
| IR @ VWM | <1.0 μA - Reverse leakage at stand-off voltage; minimizes quiescent power loss and avoids false triggering in low-current sensor circuits. |
| Package | DO-214AA (SMB) - Standardized surface-mount outline with cathode band marking; compatible with IPC-7351B footprint and J-STD-020 reflow profiles. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with axial leads trimmed and formed for surface mounting; cathode indicated by black band on one end; terminals are matte tin-plated for solderability per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes conduction path during reverse avalanche. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., +12 V rail); carries full surge current into anode during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable breakdown voltage across temperature and lifetime; eliminates parameter drift due to moisture or contamination. |
| MSL Level 1 rating | Supports unlimited floor life and single-reflow lead-free assembly at peak 260 °C without popcorn or delamination risk. |
| AEC-Q101 qualification (HE3 variant only) | This E3-suffix part is commercial grade; HE3-suffix variants meet AEC-Q101 for automotive under-hood applications. |
| Low-profile SMB package | Height ≤ 2.2 mm enables use in space-constrained PCB layouts while maintaining 1000 W surge capability. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting microcontroller GPIOs and CAN transceiver power pins from load-dump and inductive switching transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VCC and GND upstream of LDO regulators. Use Value: Limits transient voltage to ≤12.9 V during 1000 W surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic devices. |
Use Scenario: Safeguarding analog input channels (e.g., 4–20 mA sensors) and digital outputs against field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC supply rail feeding isolated signal conditioners. Use Value: Clamps 77.5 A surges within nanoseconds, preserving measurement accuracy and avoiding reset events in real-time controllers. |
| Consumer Power Adapter Output | Telecom Base Station DC Distribution |
|
Use Scenario: Secondary-side surge suppression on 5 V/9 V USB-C PD adapter outputs exposed to ESD and cable coupling events. IC Role / Device Role / Timing Role: Final-stage TVS on regulated output before connector; complements primary-side MOV and Y-cap filtering. Use Value: Sub-1 ns response and <1 μA leakage prevent standby power waste while meeting IEC 61000-4-2 Level 4 (15 kV air) requirements. |
Use Scenario: Distributed DC rail protection across +48 V backplane segments powering RF amplifiers and baseband processors. IC Role / Device Role / Timing Role: Point-of-load TVS on each board's PSE interface, placed adjacent to connector entry point. Use Value: 1000 W rating handles multiple simultaneous lightning-induced surges per Telcordia GR-1089-CORE Zone 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A-E3/5B | Same DO-214AA package, identical VWM/VBR/VC specs; differs only in part numbering convention (SMBJ vs SMB10J series branding). | No functional difference; both rated for 1000 W unidirectional PPPM and share identical thermal and mechanical specs. | Select SMBJ7.5A-E3/5B if sourcing from legacy design libraries or distributor stock referencing SMBJ prefix. |
| 1.5SMC7.5A | DO-214AB (SMC) package - larger footprint (7.11 × 6.22 mm vs SMB's 4.57 × 3.94 mm); same 7.5 V VWM but higher 1500 W PPPM rating. | Requires PCB layout change; suited for higher-energy industrial surges where space permits larger package. | Choose 1.5SMC7.5A only when >1000 W surge margin is required and board area allows SMC footprint. |
Compared with SMBJ7.5A-E3/5B, SMB10J7.5-E3/5B offers identical electrical performance in the same compact SMB outline; versus 1.5SMC7.5A, it trades 500 W extra power headroom for 40 % smaller board area and lower thermal resistance to ambient (72 °C/W vs ~50 °C/W).
Availability
SMB10J7.5-E3/5B is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, consumer power adapters, and telecom DC distribution systems requiring stable component supply, RoHS-compliant commercial-grade TVS protection, and high-volume tape-and-reel delivery.
Supply support for SMB10J7.5-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, power density, and automotive qualification.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, surface-mount transient suppression in automotive, industrial, and communications infrastructure where space, surge robustness, and assembly compatibility are critical.
FAQ
What is the maximum clamping voltage of SMB10J7.5-E3/5B under a 10/1000 μs surge?
The SMB10J7.5-E3/5B clamps to a maximum of 12.9 V when subjected to its rated 77.5 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured at TA = 25 °C on 0.2" × 0.2" copper pads and defines the upper voltage stress imposed on protected circuitry during transient events. The SMB10J7.5-E3/5B maintains this clamping performance across its specified operating temperature range.
Is SMB10J7.5-E3/5B qualified for automotive applications?
The SMB10J7.5-E3/5B carries the E3 suffix, indicating RoHS-compliant commercial-grade construction. It is not AEC-Q101 qualified; for automotive under-hood use, select the HE3-suffix variant (e.g., SMB10J7.5AHE3/5B), which meets AEC-Q101 stress testing requirements. The SMB10J7.5-E3/5B remains suitable for non-critical automotive interior modules where qualification is not mandated.
What does the "5B" in SMB10J7.5-E3/5B indicate?
The "5B" denotes the preferred package code specifying 3200 units per 13-inch diameter plastic tape-and-reel delivery format. This contrasts with "52", which indicates 750 units per 7-inch reel. Both formats use the same DO-214AA (SMB) package and electrical specifications; the suffix solely defines packaging configuration for SMT placement equipment compatibility.
Can SMB10J7.5-E3/5B be used in bidirectional signal line protection?
No - SMB10J7.5-E3/5B is a unidirectional TVS diode, intended for DC rail protection where polarity is fixed (e.g., +12 V to GND). For bidirectional AC or data-line protection, use the bi-directional SMB8J7.5CA variant, which has symmetric breakdown in both directions and no cathode marking. Using SMB10J7.5-E3/5B on AC signals risks forward conduction and failure.
What is the thermal resistance junction-to-ambient for SMB10J7.5-E3/5B?
The SMB10J7.5-E3/5B 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. This value assumes standard JEDEC test conditions and directly impacts steady-state power dissipation limits; derating is required above TA = 25 °C per Figure 2 in the Vishay datasheet 88422. The SMB10J7.5-E3/5B must not exceed 150 °C junction temperature.
SMB10J7.5-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 14.3V
- Current - Peak Pulse (10/1000µs):
- 69.9A
- 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)
SMB10J7.5-E3/5B FAQ
1.How can I place an order for SMB10J7.5-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5-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 SMB10J7.5-E3/5B reliable?
The price and inventory of SMB10J7.5-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 SMB10J7.5-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J7.5-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5-E3/5B?
SMB10J7.5-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5-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 SMB10J7.5-E3/5B?
For technical support, including SMB10J7.5-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5-E3/5B requirements.
6.How does Aetrix verify that SMB10J7.5-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5-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 SMB10J7.5-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J7.5-E3/5B?
All SMB10J7.5-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5-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 SMB10J7.5-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J7.5-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.5-E3/5B Tags
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