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Vishay General Semiconductor - Diodes Division SMB10J9.0AHE3_A/H
- Part No.:
- SMB10J9.0AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J9.0AHE3_A/H.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,236
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Product details
Overview
SMB10J9.0AHE3_A/H 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 9.0 V stand-off voltage (VWM), 15.4 V clamping voltage (VC) at 64.9 A peak pulse current (IPPM), and 1000 W peak pulse power (10/1000 µs waveform), qualified to AEC-Q101 for automotive electronics.
For engineers reviewing the SMB10J9.0AHE3_A/H datasheet, SMB10J9.0AHE3_A/H pinout, SMB10J9.0AHE3_A/H application, or SMB10J9.0AHE3_A/H equivalent, key selection criteria include clamping performance under 10/1000 µs transients, 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, responding within picoseconds to transient overvoltages induced by inductive switching or ESD events. Its glass-passivated junction ensures stable breakdown behavior, while low incremental surge resistance enables effective energy diversion without thermal runaway during repetitive surges.
The device is rated for -55 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its 1.0 µA maximum reverse leakage at 9.0 V stand-off supports low-power sensor and microcontroller I/O line protection without loading effects.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin above circuit nominal voltage. |
| VBR min/max | 10.0 V / 11.1 V at 1.0 mA - Verified breakdown threshold range ensures consistent turn-on across production lots. |
| VC @ IPPM | 15.4 V at 64.9 A - Clamping voltage limits downstream IC stress during 1000 W transient events. |
| PPPM | 1000 W (10/1000 µs) - Peak surge power handling capacity suitable for automotive load-dump and ISO 7637-2 pulse 5a protection. |
| IFSM | 100 A (8.3 ms half-sine) - Withstands single high-current surge events such as motor commutation spikes. |
| TJ max | +150 °C - Enables reliable operation in under-hood automotive environments and industrial power supplies. |
| RθJA | 72 °C/W - Thermal resistance determines required PCB copper area (0.2" × 0.2") for sustained power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by color band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to protected line's lower-potential side (e.g., GND or return path); defines conduction direction during surge. |
| Cathode | Clamping node (marked with band) | Connected to protected line's higher-potential side (e.g., VCC, signal rail); conducts when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal and electrical stress. |
| MSL Level 1 (260 °C) | Enables standard lead-free reflow without moisture-induced popcorn failure or delamination. |
| Low profile SMB package | 0.160" height allows use in space-constrained modules such as ADAS ECUs and battery management systems. |
| 1000 W peak pulse rating | Provides robust protection against ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge events. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed control modules from load-dump transients up to 35 V and 100 ms duration. IC Role / Device Role / Timing Role: Shunt clamping element placed between VBAT and GND, activated within <1 ns to clamp voltage below 16 V. Use Value: Prevents damage to MCU power inputs and CAN transceivers by limiting peak rail voltage to 15.4 V during 1000 W surges. | Use Scenario: Safeguarding analog output lines of pressure/temperature sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional-capable protection (via unidirectional pairing) on 0–5 V ratiometric outputs connected to PLC analog inputs. Use Value: Maintains signal integrity with only 1.0 µA leakage at 9.0 V, avoiding offset errors in 16-bit ADC measurements. |
| Telecom DC Power Input Protection | OBD-II Diagnostic Port Protection |
Use Scenario: Securing 48 V telecom power supply inputs against lightning-induced surges per IEC 61000-4-5 Level 4 (4 kV). IC Role / Device Role / Timing Role: Primary front-end TVS in series with fuse and common-mode choke on DC input stage. Use Value: Absorbs 1000 W pulses without degradation, enabling compliance with GR-1089-CORE immunity requirements. | Use Scenario: Hardening OBD-II connector pins (pins 6/CAN-H, 14/CAN-L, 16/VBAT) against hot-plug and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamping device on pin 16 (battery feed) referenced to chassis ground. Use Value: Survives repeated 12 V/24 V jump-start events with no parametric shift due to AEC-Q101 qualification and glass passivation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A-E3/52 | Same SMB package, identical VWM/VC, but commercial-grade (non-AEC-Q101) and RoHS-compliant only. | Lacks automotive qualification; unsuitable for under-hood or safety-critical modules. | Select when cost sensitivity outweighs automotive reliability requirements. |
| 1.5SMC9.0A | Higher package (SMC/DO-214AB), 1500 W rating, 16.7 V clamping at 91.6 A, same VWM. | Requires larger PCB footprint; better suited for industrial AC/DC front-ends with higher surge margins. | Choose for higher power handling where board space permits and AEC-Q101 not mandated. |
Compared with SMBJ9.0A-E3/52, SMB10J9.0AHE3_A/H adds AEC-Q101 qualification and tighter VBR tolerance (10.0–11.1 V vs. 9.5–10.5 V), while 1.5SMC9.0A trades compactness for 50% higher surge capacity-making SMB10J9.0AHE3_A/H optimal for space-constrained automotive DC nodes requiring certified reliability.
Availability
SMB10J9.0AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power inputs, and OBD-II diagnostic port protection requiring stable component supply and full traceability.
Supply support for SMB10J9.0AHE3_A/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 high-reliability and automotive-grade solutions.
The SMB10Jx.xAHE3 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for AEC-Q101-compliant transient suppression in harsh automotive and industrial environments where precise clamping and long-term stability are critical.
FAQ
What is the clamping voltage of SMB10J9.0AHE3_A/H at its rated peak pulse current?
The SMB10J9.0AHE3_A/H has a maximum clamping voltage (VC) of 15.4 V at 64.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured and guaranteed per the Vishay datasheet (Document Number: 88422, Revision: 09-Jan-2024), ensuring predictable overvoltage limiting for protected circuits.
Is SMB10J9.0AHE3_A/H suitable for automotive applications?
Yes, SMB10J9.0AHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliance and automotive qualification. It meets requirements for under-hood and body-control module applications, including thermal cycling, humidity bias, and mechanical shock testing per the AEC standard.
What is the standoff voltage (VWM) and why is it important for SMB10J9.0AHE3_A/H?
The standoff voltage (VWM) of SMB10J9.0AHE3_A/H is 9.0 V - the maximum continuous reverse voltage the device can withstand without entering breakdown. This parameter ensures the TVS remains non-conductive during normal operation, preventing leakage-related power loss or signal distortion in 9 V nominal systems like automotive sensor supplies or industrial 5–12 V logic rails.
Does SMB10J9.0AHE3_A/H have a defined polarity, and how is it identified?
Yes, SMB10J9.0AHE3_A/H is a unidirectional TVS diode with clearly defined polarity: the cathode is marked by a color band on the SMB package body. During layout, the banded end must connect to the higher-potential side (e.g., VCC or signal line), while the anode connects to ground or return - reversing this connection prevents proper clamping function.
What is the thermal resistance (RθJA) of SMB10J9.0AHE3_A/H, and how does it affect PCB design?
SMB10J9.0AHE3_A/H 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 dictates minimum copper area needed to dissipate surge energy without exceeding +150 °C junction temperature - undersized pads risk thermal runaway during repetitive transients.
SMB10J9.0AHE3_A/H 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 64.9A
- 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)
SMB10J9.0AHE3_A/H FAQ
1.How can I place an order for SMB10J9.0AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J9.0AHE3_A/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 SMB10J9.0AHE3_A/H reliable?
The price and inventory of SMB10J9.0AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J9.0AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMB10J9.0AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J9.0AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J9.0AHE3_A/H?
SMB10J9.0AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J9.0AHE3_A/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 SMB10J9.0AHE3_A/H?
For technical support, including SMB10J9.0AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J9.0AHE3_A/H requirements.
6.How does Aetrix verify that SMB10J9.0AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB10J9.0AHE3_A/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 SMB10J9.0AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMB10J9.0AHE3_A/H?
All SMB10J9.0AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J9.0AHE3_A/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 SMB10J9.0AHE3_A/H part is unused and in its original packaging.
Return procedure for SMB10J9.0AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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