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Vishay General Semiconductor - Diodes Division SMA5J9.0HE3/5A
- Part No.:
- SMA5J9.0HE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J9.0HE3/5A.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,085
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Product details
Overview
SMA5J9.0HE3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on signal and power lines. It features a 9.0 V stand-off voltage (VWM), 15.4 V clamping voltage (VC) at 5.0 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMA5J9.0HE3/5A datasheet, SMA5J9.0HE3/5A pinout, SMA5J9.0HE3/5A application, or SMA5J9.0HE3/5A equivalent, key selection criteria include verified bi-directional clamping performance, AEC-Q101 qualification, RoHS-compliant HE3 whisker-tested terminals, and DO-214AC thermal resistance (RθJA = 80 °C/W) for board-level thermal design validation.
Technical Context
This TVS diode operates symmetrically in both directions due to its bi-directional construction, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior under repetitive surge stress, and it meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow compatibility.
The device delivers low incremental surge resistance and fast response time (<1 ns), critical for suppressing transients induced by inductive switching or lightning surges. With a maximum junction temperature of 150 °C and operating range from –55 °C to +150 °C, it supports under-hood automotive and industrial environments where thermal margin is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - reverse stand-off voltage; defines maximum continuous working voltage before clamping begins |
| VBR (min/max) | 10.0 V / 11.1 V - breakdown voltage range at 1 mA test current; ensures reliable turn-on within spec |
| VC @ IPPM | 15.4 V at 5.0 A - clamping voltage during 10/1000 µs surge; limits protected circuit voltage stress |
| PPPM | 500 W - peak pulse power handling; determines survivability against standardized lightning surges |
| ID @ VWM | 1.0 µA - max reverse leakage at 9.0 V; minimizes standby power loss in battery-powered systems |
| TJ max. | +150 °C - maximum junction temperature; enables use in high-ambient automotive engine control units |
| RθJA | 80 °C/W - thermal resistance junction-to-ambient; informs PCB copper pad sizing for thermal reliability |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, bi-directional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | No functional polarity - either terminal serves as input/output for transient energy diversion |
| Case (cathode band absent) | Non-polarized package body | Eliminates orientation dependency during automated placement; reduces assembly error risk |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and surge lifetime testing |
| HE3 suffix | JESD 201 Class 2 whisker resistance - ensures long-term solder joint integrity in vibration-prone environments |
| Glass passivated junction | Stable VBR over life and temperature; prevents parameter drift under repeated surge stress |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60% RH; eliminates bake requirements prior to SMT assembly |
| UL 94 V-0 molding compound | Flame-retardant encapsulation - meets safety requirements for enclosed industrial and automotive enclosures |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across signal/power rails upstream of interface ICs. Use Value: Limits rail voltage to ≤15.4 V during 5 A surge, preventing latch-up or damage to 12 V-rated transceivers and ADC front-ends. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to inductive kickback from solenoids and contactors. IC Role / Device Role / Timing Role: Standoff protector on 24 V DC input channels, shunting surge energy to ground before reaching optocoupler or microcontroller GPIO. Use Value: Clamps 10/1000 µs transients to 15.4 V while maintaining <1.0 µA leakage at 9.0 V - preserving signal integrity and reducing false triggering. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station equipment from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary surge suppression element on differential data lines, paired with common-mode chokes. Use Value: Symmetric clamping ensures balanced protection of A/B lines without skew; 500 W rating handles IEC 61000-4-5 Level 4 surges. | Use Scenario: Guarding microcontroller-based motor drivers in washing machines and HVAC systems against back-EMF spikes from brushed DC motors. IC Role / Device Role / Timing Role: Low-leakage transient suppressor on 12–24 V supply rails feeding H-bridge gate drivers. Use Value: 1.0 µA ID at 9.0 V avoids unnecessary current draw in standby mode; 150 °C TJ max supports sealed enclosure thermal profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J9.0A-E3/5A | Uni-directional variant; cathode-marked; VF = 3.5 V at 25 A forward conduction | Requires correct polarity placement; unsuitable for AC or bidirectional signal lines | Select only when protecting DC rails with known polarity and need for forward conduction capability |
| SMCJ9.0CA | Same VWM/VC specs but in larger DO-214AB (SMC) package; higher RθJA = 35 °C/W; 1500 W PPPM rating | Better thermal dissipation and surge capacity; requires larger PCB footprint | Choose when system-level surge tests exceed 500 W or ambient temperature exceeds 105 °C |
Compared with SMA5J9.0HE3/5A, the uni-directional SMA5J9.0A-E3/5A demands strict polarity alignment and lacks symmetrical protection, while SMCJ9.0CA offers higher surge robustness at the cost of board space - making SMA5J9.0HE3/5A optimal for space-constrained AEC-Q101-compliant bi-directional protection.
Availability
SMA5J9.0HE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and full traceability.
Supply support for SMA5J9.0HE3/5A 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 application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in automotive and industrial environments, prioritizing AEC-Q101 compliance, low clamping voltage, and robust surge handling in compact surface-mount packages.
FAQ
What is the clamping voltage of the SMA5J9.0HE3/5A under a 10/1000 µs surge?
The SMA5J9.0HE3/5A has a maximum clamping voltage (VC) of 15.4 V at 5.0 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per JEDEC/ANSI standards and ensures downstream ICs see limited overvoltage during surge events. The SMA5J9.0HE3/5A maintains this clamping performance across its specified operating temperature range and is validated for bi-directional symmetry.
Is the SMA5J9.0HE3/5A suitable for automotive applications?
Yes, the SMA5J9.0HE3/5A is AEC-Q101 qualified and specifically designed for automotive use. Its HE3 suffix indicates JESD 201 Class 2 whisker resistance, and it meets MSL Level 1 for lead-free reflow. The SMA5J9.0HE3/5A operates from –55 °C to +150 °C and is deployed in engine control units, body electronics, and sensor interfaces where transient immunity is critical.
How does the SMA5J9.0HE3/5A differ from the SMA5J9.0A-E3/5A?
The SMA5J9.0HE3/5A is bi-directional with no polarity marking, while the SMA5J9.0A-E3/5A is uni-directional and marked with a cathode band. The SMA5J9.0HE3/5A provides symmetrical clamping for AC or differential signals; the uni-directional version conducts forward current (VF = 3.5 V at 25 A) but cannot protect reverse-polarity transients. Both share identical VWM and VC ratings.
What is the thermal resistance of the SMA5J9.0HE3/5A, and how does it affect layout?
The SMA5J9.0HE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value guides PCB copper area design: reducing thermal resistance requires increasing pad size or adding thermal vias. For sustained surge duty, designers should verify junction temperature rise using this RθJA and actual power dissipation in the SMA5J9.0HE3/5A.
Does the SMA5J9.0HE3/5A require orientation during PCB assembly?
No - the SMA5J9.0HE3/5A is a bi-directional TVS diode with no polarity marking, so orientation is not required during automated placement. Its DO-214AC (SMA) package has symmetrical terminals, allowing flexible routing and eliminating assembly errors related to cathode/anode misalignment. This simplifies manufacturing and supports high-yield SMT processes for the SMA5J9.0HE3/5A.
SMA5J9.0HE3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- 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:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 29.6A
- Power - Peak Pulse:
- 500W
- 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-214AC (SMA)
SMA5J9.0HE3/5A FAQ
1.How can I place an order for SMA5J9.0HE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J9.0HE3/5A 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 SMA5J9.0HE3/5A reliable?
The price and inventory of SMA5J9.0HE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J9.0HE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J9.0HE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J9.0HE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J9.0HE3/5A?
SMA5J9.0HE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J9.0HE3/5A 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 SMA5J9.0HE3/5A?
For technical support, including SMA5J9.0HE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J9.0HE3/5A requirements.
6.How does Aetrix verify that SMA5J9.0HE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J9.0HE3/5A 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 SMA5J9.0HE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J9.0HE3/5A?
All SMA5J9.0HE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J9.0HE3/5A, 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 SMA5J9.0HE3/5A part is unused and in its original packaging.
Return procedure for SMA5J9.0HE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J9.0HE3/5A Tags
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