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Vishay General Semiconductor - Diodes Division SMA5J10CHE3/5A
- Part No.:
- SMA5J10CHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J10CHE3/5A.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,661
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Product details
Overview
SMA5J10CHE3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on DC power lines and signal paths. It features 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR), 17.0 V clamping voltage at 29.4 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 µs waveform. Used to protect MOSFETs, ICs, and sensor interfaces in automotive ECUs.
For engineers reviewing the SMA5J10CHE3/5A datasheet, SMA5J10CHE3/5A pinout, SMA5J10CHE3/5A application, or SMA5J10CHE3/5A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, RoHS-compliant matte tin plating, 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: under normal bias it presents high impedance (<1.0 µA leakage at 10 V), then rapidly avalanches when reverse voltage exceeds VBR to clamp transients within 1 ns response time. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
Designed for single-polarity DC rails, it supports 40 A non-repetitive forward surge (IFSM) and exhibits 80 °C/W junction-to-ambient thermal resistance (RθJA) when mounted per recommended pad layout. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 11.1 V / 12.3 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold |
| VC @ IPPM | 17.0 V - Clamped voltage across device during 29.4 A 10/1000 µs surge; limits stress on downstream components |
| PPPM | 500 W - Peak transient energy absorption capability under standardized 10/1000 µs waveform |
| TJ max. | +150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments |
| Polarity | Unidirectional - Cathode band marked; blocks forward current above ~3.5 V, clamps reverse surges only |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case meeting UL 94 V-0, matte tin-plated leads solderable per J-STD-002, 0.208" × 0.157" footprint, cathode band marking on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., IFSM test) |
| Cathode | Reverse clamping terminal | Marked with band; connected to higher-potential rail; avalanches to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including engine control, body modules, and ADAS sensors |
| Glass passivated junction | Ensures stable VBR over lifetime and improved reliability vs. epoxy-passivated alternatives |
| Low profile DO-214AC package | Enables high-density PCB layouts and compatibility with standard SMT pick-and-place equipment |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without moisture sensitivity concerns or baking requirements |
| 500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a transients and IEC 61000-4-5 surge events in 12 V systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional shunt TVS that clamps transients to ≤17.0 V while diverting up to 29.4 A away from LDOs and microcontrollers. Use Value: Prevents latch-up or permanent damage to downstream silicon during ISO 7637-2 Pulse 5a (75 V/100 ms) events. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Reverse-biased clamping element placed between sensor output and system ground to absorb ESD and cable discharge events. Use Value: Limits voltage excursion to 17.0 V during 8 kV contact ESD (IEC 61000-4-2), preserving ADC input integrity and measurement accuracy. |
| DC Motor Drive Protection | Telecom Power Supply Input |
Use Scenario: Suppressing flyback voltage spikes generated by brushed DC motors in automotive seat/mirror actuators. IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp inductive kickback in reverse direction only, aligned with motor polarity. Use Value: Enables reliable operation with 40 A single-half-sine forward surge rating (IFSM), surviving repeated commutation events. | Use Scenario: Guarding primary-side inputs of telecom AC/DC adapters against lightning-induced surges on building mains. IC Role / Device Role / Timing Role: First-stage unidirectional TVS on rectified DC bus, absorbing energy before upstream MOVs or secondary-side regulators. Use Value: Delivers 500 W peak pulse power handling with 1 ns response, reducing let-through energy to <100 mJ for downstream circuit survival. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J10A-E3/5A | Same electrical specs but commercial-grade (non-AEC-Q101); no JESD 201 Class 2 whisker testing | Approved for industrial/commercial use only; not certified for automotive under-hood deployment | Select when AEC-Q101 compliance is not required and cost optimization is prioritized |
| SMC5J10AHE3/5A | Same VWM/VBR/VC but in larger DO-214AB (SMC) package; higher RθJA (35 °C/W) and 600 W PPPM rating | Better thermal dissipation for high-duty-cycle surges; requires larger PCB area and different land pattern | Choose when sustained surge repetition or higher energy absorption (>500 W) is needed and board space allows |
Compared with SMA5J10A-E3/5A, the SMA5J10CHE3/5A adds automotive qualification and whisker resistance without altering clamping performance; versus SMC5J10AHE3/5A, it trades package size and thermal margin for compactness and standard SMT compatibility.
Availability
SMA5J10CHE3/5A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, DC motor drive circuits, and telecom power supply inputs requiring stable component supply and long-term lifecycle support.
Supply support for SMA5J10CHE3/5A 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, power density, and automotive-grade qualification.
The SMA5J series targets high-power-density transient suppression in space-constrained applications, specifically engineered for AEC-Q101 compliance and robust surge immunity in harsh environments like automotive and industrial settings.
FAQ
What is the maximum clamping voltage of the SMA5J10CHE3/5A under a 10/1000 µs surge?
The SMA5J10CHE3/5A clamps to a maximum of 17.0 V when subjected to its rated peak pulse current of 29.4 A with a 10/1000 µs waveform. This value is measured at the device terminals under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The SMA5J10CHE3/5A maintains this clamping performance across its specified operating temperature range.
Is the SMA5J10CHE3/5A suitable for automotive applications?
Yes, the SMA5J10CHE3/5A is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units, body electronics, and ADAS sensor modules. Its HE3 suffix denotes compliance with AEC-Q101 stress tests and JESD 201 Class 2 whisker resistance. The SMA5J10CHE3/5A operates reliably from –55 °C to +150 °C junction temperature, meeting under-hood environmental requirements.
What does the "HE3" suffix indicate in SMA5J10CHE3/5A?
The "HE3" suffix in SMA5J10CHE3/5A identifies the part as RoHS-compliant and AEC-Q101 qualified, with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance. It distinguishes the automotive-grade version from the commercial "E3" variant (e.g., SMA5J10A-E3/5A), confirming enhanced process controls and reliability validation required for automotive deployment. The SMA5J10CHE3/5A is not interchangeable with non-HE3 variants in AEC-Q101-certified designs.
How is the polarity marked on the SMA5J10CHE3/5A package?
The SMA5J10CHE3/5A uses a cathode band marking on the DO-214AC (SMA) package body to indicate polarity: the banded end is the cathode terminal, which connects to the higher-potential side of the protected line. As a unidirectional TVS, it conducts in forward bias (anode to cathode) and clamps reverse transients (cathode to anode). No marking appears on bi-directional variants, but the SMA5J10CHE3/5A is unidirectional and always features the band.
What is the thermal resistance of the SMA5J10CHE3/5A in standard mounting conditions?
The SMA5J10CHE3/5A 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, as defined in the Vishay datasheet. This value assumes standard JEDEC test board conditions and directly impacts steady-state power derating above 25 °C ambient. The SMA5J10CHE3/5A must be routed with adequate copper area to maintain TJ ≤ 150 °C during repetitive surge events.
SMA5J10CHE3/5A 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 26.6A
- 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)
SMA5J10CHE3/5A FAQ
1.How can I place an order for SMA5J10CHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J10CHE3/5A 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 SMA5J10CHE3/5A reliable?
The price and inventory of SMA5J10CHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J10CHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J10CHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J10CHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J10CHE3/5A?
SMA5J10CHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J10CHE3/5A 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 SMA5J10CHE3/5A?
For technical support, including SMA5J10CHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J10CHE3/5A requirements.
6.How does Aetrix verify that SMA5J10CHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J10CHE3/5A 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 SMA5J10CHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J10CHE3/5A?
All SMA5J10CHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J10CHE3/5A, 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 SMA5J10CHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J10CHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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