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Vishay General Semiconductor - Diodes Division SMB10J30AHE3/5B
- Part No.:
- SMB10J30AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J30AHE3/5B.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,306
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Product details
Overview
SMB10J30AHE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection with 1000 W peak pulse power (10/1000 µs), 30 V stand-off voltage (VWM), and 48.4 V clamping voltage (VC) at 20.7 A peak pulse current. It is AEC-Q101 qualified and used to protect automotive sensor signal lines, MOSFET gates, and microcontroller I/O against inductive switching transients.
For engineers reviewing the SMB10J30AHE3/5B datasheet, SMB10J30AHE3/5B pinout, SMB10J30AHE3/5B application, or SMB10J30AHE3/5B equivalent, key selection criteria include clamping performance under 10/1000 µs surges, AEC-Q101 qualification status, unidirectional polarity, thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its breakdown threshold (33.3–36.8 V at 1 mA), it avalanches rapidly (<1 ns response) to divert surge current away from downstream ICs. Its glass-passivated junction ensures stable leakage (<1 µA at 30 V) and long-term reliability under repeated transients.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Figure 2; its low incremental surge resistance enables efficient energy absorption without thermal runaway during 8.3 ms half-sine surges up to 100 A (IFSM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before conduction begins; defines safe signal line bias range. |
| VBR min/max | 33.3 V / 36.8 V at 1 mA - Breakdown voltage tolerance band; determines minimum clamping onset threshold. |
| VC @ IPPM | 48.4 V at 20.7 A - Clamped voltage during 10/1000 µs surge; directly limits stress on protected IC inputs. |
| PPPM | 1000 W - Peak pulse power handling (10/1000 µs); quantifies single-event surge energy absorption capability. |
| IPPM | 20.7 A - Peak pulse current corresponding to VC; used to size PCB trace width and pad thermal mass. |
| TJ max | +150 °C - Maximum junction temperature; sets thermal design margin for sustained operation in engine bay environments. |
| RθJA | 72 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" pads; guides heatsinking requirements. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0, MSL Level 1 (260 °C reflow peak), and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage events. |
| Anode | Reference/ground return | Typically tied to system ground plane; completes shunt path for transient energy dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Glass-passivated junction | Ensures stable VBR and low leakage over lifetime, even under high-humidity or high-vibration conditions. |
| Low-profile SMB package | Enables high-density layout on compact PCBs while maintaining 1000 W surge rating and automated pick-and-place compatibility. |
| Fast response time | <1 ns turn-on delay minimizes voltage overshoot before clamping engages, protecting sensitive CMOS inputs. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak, simplifying manufacturing flow. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between signal line and chassis ground, clamping transients before they reach transceiver ESD structures. Use Value: Maintains signal integrity below 48.4 V during 1000 W surges, preventing latch-up or permanent damage to AEC-Q100 qualified ICs. | Use Scenario: Safeguarding PLC digital input modules connected to solenoid valves and relay coils subject to 100 A inductive turn-off spikes. IC Role / Device Role / Timing Role: Front-end transient clamp on 24 V DC input lines, absorbing energy before it reaches optocoupler or MCU GPIO protection networks. Use Value: Withstands 100 A single-half-sine surge (IFSM) and provides repeatable clamping at 48.4 V, extending module field life in factory automation. |
| Consumer Power Adapter Output | Telecom Base Station Control Lines |
Use Scenario: Secondary-side overvoltage suppression on 5–24 V DC output rails of wall adapters exposed to lightning-induced surges via AC mains coupling. IC Role / Device Role / Timing Role: Final-stage TVS across output terminals, triggered only during abnormal line transients exceeding 30 V. Use Value: Limits output voltage excursion to ≤48.4 V during 10/1000 µs events, preventing damage to connected USB-C PD controllers or battery management ICs. | Use Scenario: Protecting RS-485/RS-232 control interfaces in outdoor telecom cabinets subjected to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional SMB10J30AHE3/5B used on DC-biased control lines referenced to local ground. Use Value: Delivers 1000 W surge handling with <1 µA leakage at 30 V, preserving signal fidelity while meeting IEC 61000-4-5 Level 3 immunity 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 |
|---|---|---|---|
| SMBJ30AHE3/5B | Same VWM (30 V), identical SMB package, but lower PPPM = 600 W and higher VC = 48.4 V at 12.3 A. | Lower surge energy capacity; suitable only where peak transients are ≤600 W. | Select SMBJ30AHE3/5B only if system-level surge testing confirms 600 W is sufficient and board space constraints favor identical footprint. |
| SMCJ30AHE3/5B | Same VWM and VC, but larger SMC (DO-214AB) package with PPPM = 1500 W and RθJA = 35 °C/W. | Higher power handling and better thermal performance, but requires larger PCB area and different stencil design. | Choose SMCJ30AHE3/5B when system-level testing shows >1000 W surge exposure or when ambient temperatures exceed 105 °C. |
Compared with SMBJ30AHE3/5B, SMB10J30AHE3/5B delivers 67% higher surge power rating in the same SMB footprint; versus SMCJ30AHE3/5B, it trades 500 W headroom and improved thermal resistance for 30% smaller board area and full MSL Level 1 compatibility.
Availability
SMB10J30AHE3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial motor controls, consumer power adapters, and telecom interface protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB10J30AHE3/5B 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, efficiency, and automotive-grade qualification.
The SMB10J series belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for robust transient suppression in harsh environments including automotive under-hood, industrial drives, and infrastructure equipment.
FAQ
What is the clamping voltage of SMB10J30AHE3/5B at its rated peak pulse current?
The SMB10J30AHE3/5B has a maximum clamping voltage (VC) of 48.4 V at 20.7 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMB10J30AHE3/5B maintains this clamping performance across its qualified operating temperature range.
Is SMB10J30AHE3/5B suitable for automotive applications?
Yes, SMB10J30AHE3/5B is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix. It undergoes stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature reverse bias per AEC-Q101 Rev H. The SMB10J30AHE3/5B is commonly deployed in engine control units, body electronics, and ADAS sensor modules where transient immunity and long-term reliability are critical.
What is the standoff voltage and breakdown voltage range for SMB10J30AHE3/5B?
The SMB10J30AHE3/5B has a nominal standoff voltage (VWM) of 30 V and a guaranteed breakdown voltage (VBR) range of 33.3 V to 36.8 V at 1 mA test current. This 3.5 V window ensures reliable non-conduction during normal operation while providing predictable avalanche onset during overvoltage events. The SMB10J30AHE3/5B maintains these parameters across its -55 °C to +150 °C operating junction temperature range.
Does SMB10J30AHE3/5B have a bidirectional variant?
No, SMB10J30AHE3/5B is a unidirectional TVS diode, indicated by the "J" (not "JC") in its part number. Bidirectional variants in the same family carry "JC" suffixes (e.g., SMB8J30CA). The SMB10J30AHE3/5B features a cathode band marking and must be oriented with cathode toward the protected line; using it in reverse polarity will result in forward conduction and failure.
What packaging and moisture sensitivity level does SMB10J30AHE3/5B ship in?
SMB10J30AHE3/5B ships in 13-inch plastic tape and reel format (package code "5B") with 3200 units per reel. It is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be reflowed at a peak temperature of 260 °C without baking. The SMB10J30AHE3/5B's matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards.
SMB10J30AHE3/5B 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 20.7A
- 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)
SMB10J30AHE3/5B FAQ
1.How can I place an order for SMB10J30AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J30AHE3/5B 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 SMB10J30AHE3/5B reliable?
The price and inventory of SMB10J30AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J30AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J30AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J30AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J30AHE3/5B?
SMB10J30AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J30AHE3/5B 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 SMB10J30AHE3/5B?
For technical support, including SMB10J30AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J30AHE3/5B requirements.
6.How does Aetrix verify that SMB10J30AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J30AHE3/5B 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 SMB10J30AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J30AHE3/5B?
All SMB10J30AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J30AHE3/5B, 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 SMB10J30AHE3/5B part is unused and in its original packaging.
Return procedure for SMB10J30AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J30AHE3/5B Tags
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