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Vishay General Semiconductor - Diodes Division SMB10J30AHE3_B/H
- Part No.:
- SMB10J30AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J30AHE3_B/H.pdf
- Description:
- 1KW,30V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,182
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Product details
Overview
SMB10J30AHE3_B/H 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 gate drivers, and microcontroller I/O pins against inductive switching transients.
For engineers reviewing the SMB10J30AHE3_B/H datasheet, SMB10J30AHE3_B/H pinout, SMB10J30AHE3_B/H application, or SMB10J30AHE3_B/H equivalent, this page delivers verified electrical parameters, automotive-grade qualification status, thermal resistance data, clamping performance under standardized surge waveforms, and real-world use context for ESD and load-dump transient suppression.
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 to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at 30 V) and fast response (<1 ns).
Thermal design relies on low RθJL (20 °C/W) and moderate RθJA (72 °C/W), requiring PCB copper pad area (0.2" × 0.2") for rated 1000 W dissipation. The device meets MSL Level 1 and supports reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before significant leakage; defines safe signal line bias margin. |
| VBR min/max | 33.3 V / 36.8 V at 1 mA - Breakdown onset range; ensures reliable triggering above system operating voltage. |
| VC @ IPPM | 48.4 V at 20.7 A - Clamped voltage during 10/1000 µs surge; determines maximum stress on protected IC. |
| PPPM | 1000 W - Peak pulse power handling capability; enables robust protection against ISO 7637-2 Pulse 1/2a/5a transients. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at 30 V; negligible loading on high-impedance sensor or logic inputs. |
| TJ max | +150 °C - Maximum junction temperature; supports under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive reliability including HTOL, TC, UHAST, and ESD testing per JESD47. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail in unidirectional configuration; carries surge current to reference plane. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., CAN_H, LIN, sensor output); avalanches when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime; eliminates risk of moisture-induced parameter drift in humid environments. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules without additional qualification effort. |
| MSL Level 1 rating | Enables standard SMT reflow without baking; compatible with high-volume automated assembly at 260 °C peak. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt surges, improving clamping precision for fast transients like EFT (IEC 61000-4-4). |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed automotive and industrial enclosures. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting analog outputs of pressure/temperature sensors in engine control units exposed to load dump and alternator ripple. IC Role / Device Role: Unidirectional shunt clamp placed between sensor output and ground. Use Value: Limits transient voltage to ≤48.4 V, preventing damage to 3.3 V or 5 V ADC input stages while maintaining <1 µA leakage at 30 V bias. |
Use Scenario: Safeguarding digital enable/disable signals routed to gate drivers in variable-frequency drives. IC Role / Device Role: Transient suppressor on isolated logic-level control lines subject to inductive kickback. Use Value: Absorbs 1000 W surges without degradation, preserving signal integrity and enabling >100,000 surge cycles per AEC-Q101 test plan. |
| Automotive LIN Bus Protection | Consumer Power Adapter Feedback Loop |
Use Scenario: Shielding LIN transceiver pins from battery transients and electrostatic discharge in door module ECUs. IC Role / Device Role: Bidirectional-capable unidirectional TVS (cathode grounded) on LIN bus line. Use Value: Clamps 10/1000 µs pulses to 48.4 V within nanoseconds, meeting ISO 17987-4 EMC immunity requirements. |
Use Scenario: Protecting optocoupler feedback path in AC/DC adapters against surge coupling from primary-side MOSFET switching. IC Role / Device Role: Low-leakage (≤1 µA) clamping diode across secondary-side error amplifier input. Use Value: Prevents false regulation trips during EN 61000-4-5 1 kV surge events while adding no measurable offset to feedback voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A-E3/52 | Same VWM (30 V), same SMB package, but rated for 600 W PPPM (vs. 1000 W) and not AEC-Q101 qualified. | Limited to commercial-grade consumer/industrial systems; insufficient for automotive load-dump immunity validation. | Select SMB10J30AHE3_B/H when 1000 W surge handling and automotive qualification are mandatory. |
| SMCJ30AHE3_A/H | Same VWM and AEC-Q101 qualification, but larger SMC (DO-214AB) package with 1500 W PPPM and higher thermal mass. | Requires larger PCB footprint and higher mounting pad area; preferred where board space allows and higher energy absorption is needed. | Choose SMB10J30AHE3_B/H for space-constrained automotive modules needing full AEC-Q101 compliance in SMB footprint. |
Compared with SMBJ30A-E3/52, SMB10J30AHE3_B/H delivers +67% peak pulse power and automotive qualification; versus SMCJ30AHE3_A/H, it trades 500 W headroom for 30% smaller PCB area and identical AEC-Q101 coverage-ideal for compact ECU designs.
Availability
SMB10J30AHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor control I/O, and consumer power adapter feedback circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for SMB10J30AHE3_B/H 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 qualification.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive and industrial environments where AEC-Q101 compliance and 1000 W surge capacity are critical.
FAQ
What is the clamping voltage of SMB10J30AHE3_B/H at its rated peak pulse current?
The SMB10J30AHE3_B/H has a maximum clamping voltage (VC) of 48.4 V when subjected to its rated peak pulse current of 20.7 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable voltage limiting during surge events, directly protecting downstream 3.3 V or 5 V logic interfaces without overstressing their absolute maximum ratings. The SMB10J30AHE3_B/H maintains this clamping performance across its full operating temperature range.
Is SMB10J30AHE3_B/H suitable for automotive applications?
Yes, SMB10J30AHE3_B/H is explicitly AEC-Q101 qualified, with test evidence covering high-temperature operating life, temperature cycling, unbiased highly accelerated stress testing, and ESD per JESD22-A114. Its construction-including glass-passivated junction, matte tin leads, UL 94 V-0 molding, and MSL Level 1 rating-meets automotive manufacturing and under-hood environmental requirements. The SMB10J30AHE3_B/H is designated for use in engine control units, body controllers, and ADAS sensor modules.
How does SMB10J30AHE3_B/H differ from standard SMBJ30A variants?
SMB10J30AHE3_B/H differs from standard SMBJ30A parts in three key ways: it delivers 1000 W peak pulse power (versus 600 W for SMBJ30A), carries full AEC-Q101 qualification (SMBJ30A-E3 is commercial grade only), and uses the HE3 suffix denoting RoHS-compliant + AEC-Q101 compliance. These distinctions make SMB10J30AHE3_B/H appropriate for automotive load-dump immunity (ISO 7637-2 Pulse 5a) where SMBJ30A would fail derating or qualification requirements.
What is the thermal resistance profile of SMB10J30AHE3_B/H?
SMB10J30AHE3_B/H has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. This dual-path thermal design prioritizes heat transfer through the leads into the PCB, enabling sustained 1000 W surge dissipation without exceeding the +150 °C maximum junction temperature. The low RθJL ensures effective thermal coupling even with minimal board copper, critical for dense automotive PCB layouts.
Can SMB10J30AHE3_B/H be used in bidirectional configurations?
No, SMB10J30AHE3_B/H is a unidirectional TVS diode, identified by its cathode band marking and specified breakdown behavior only in reverse bias. For bidirectional protection, Vishay offers the SMB8J30CA family (e.g., SMB8J30CAHE3_B/H), which provides symmetrical clamping for AC-coupled lines like CAN or USB. Using SMB10J30AHE3_B/H in bidirectional mode would result in forward conduction on one polarity, causing failure or incorrect clamping behavior. Always match device polarity to signal topology.
SMB10J30AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 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)
SMB10J30AHE3_B/H FAQ
1.How can I place an order for SMB10J30AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J30AHE3_B/H 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_B/H reliable?
The price and inventory of SMB10J30AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J30AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMB10J30AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J30AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J30AHE3_B/H?
SMB10J30AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J30AHE3_B/H 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_B/H?
For technical support, including SMB10J30AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J30AHE3_B/H requirements.
6.How does Aetrix verify that SMB10J30AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMB10J30AHE3_B/H 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_B/H meets industry standards.
7.What is the process for return or replacement of SMB10J30AHE3_B/H?
All SMB10J30AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J30AHE3_B/H, 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_B/H part is unused and in its original packaging.
Return procedure for SMB10J30AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J30AHE3_B/H Tags
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