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Vishay General Semiconductor - Diodes Division SMAJ10CAHE3/61
- Part No.:
- SMAJ10CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ10CAHE3/61.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,870
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Product details
Overview
SMAJ10CAHE3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust ESD and surge protection on signal/power lines. It features 10 V standoff voltage (VWM), 11.1–12.3 V breakdown voltage (VBR at 1 mA), 17.0 V clamping voltage (VC) at 23.5 A peak pulse current, and 400 W peak pulse power (10/1000 μs waveform). It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the SMAJ10CAHE3/61 datasheet, SMAJ10CAHE3/61 pinout, SMAJ10CAHE3/61 application, or SMAJ10CAHE3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.53), AEC-Q101 qualification status, thermal resistance (RθJA = 120 °C/W), and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional CA construction, enabling protection against positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while the low incremental surge resistance supports fast energy diversion during ESD events.
The device is rated for 400 W peak pulse power up to 78 V and derates to 300 W above that threshold, with thermal performance defined by RθJA = 120 °C/W and RθJL = 30 °C/W. It meets J-STD-020 MSL Level 1 and withstands solder reflow peaks up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown range ensures reliable turn-on across process variation and temperature. |
| VC @ IPPM | 17.0 V at 23.5 A - Clamping voltage limits downstream component stress during 10/1000 μs surge events. |
| PPPM | 400 W - Peak pulse power handling capacity for transient suppression per industry-standard waveform. |
| IPPM | 23.5 A - Maximum non-repetitive surge current the device can safely divert without degradation. |
| TJ max | +150 °C - Maximum junction temperature rating enables operation in under-hood automotive environments. |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint, compatible with standard SMT assembly and IPC-7351B land patterns. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated. Bidirectional construction means no polarity marking; both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Accepts reverse surge current during negative transients; identical electrical behavior to cathode terminal. |
| Cathode | Transient current entry (positive half-cycle) | Accepts forward surge current during positive transients; functionally interchangeable with anode in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards. |
| 400 W peak pulse power | Handles high-energy transients from inductive load switching (e.g., solenoid drivers) without failure. |
| Low clamping ratio (VC/VBR ≈ 1.53) | Minimizes overvoltage exposure to protected ICs-critical for 3.3 V/5 V logic interfaces. |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 μA) over lifetime and temperature. |
Applications
| Automotive Body Control Module | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs from load dump and alternator ripple in vehicle door modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching sensitive analog front-end circuitry. Use Value: Prevents latch-up and permanent damage to 5 V tolerant MCU pins during ISO 7637-2 Pulse 5a events (up to 110 V, 100 ms). |
Use Scenario: Safeguarding 4–20 mA current loop inputs and RS-485 transceivers in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Fast-response TVS placed across differential signal pairs to clamp common-mode surges induced by nearby motor drives. Use Value: Maintains signal integrity during 4 kV EFT bursts (IEC 61000-4-4) by limiting voltage excursion to <17.0 V at 23.5 A. |
| Consumer Power Adapter Input Stage | Automotive Camera Module ESD Protection |
|
Use Scenario: Secondary-side overvoltage suppression on 12 V DC output rails of wall-mounted AC/DC adapters. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between VOUT and GND to absorb coupling spikes from primary-side switching noise. Use Value: Limits output rail overshoot to ≤17.0 V during 10/1000 μs surges, preventing damage to downstream DC-DC regulators and USB-PD controllers. |
Use Scenario: Front-end protection for MIPI CSI-2 data lanes and power supply pins in ADAS camera modules exposed to hot-swap and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to image sensor connector to suppress ±8 kV contact ESD (IEC 61000-4-2). Use Value: Clamps ESD pulses within <1 ns while adding <0.5 pF parasitic capacitance-preserving signal rise time for 1.5 Gbps video streams. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA-M3/61 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification. | No functional difference; selected when halogen-free material compliance is required for end-product certification. | Choose SMAJ10CA-M3/61 if EU EcoDesign or specific OEM material declarations mandate halogen-free construction. |
| SMAJ10AHE3/61 | Unidirectional version; same VWM, VBR, VC, and PPPM, but polarity-sensitive (cathode band marked). | Requires correct orientation during layout; unsuitable for AC-coupled or floating signal lines where bidirectional clamping is mandatory. | Use SMAJ10AHE3/61 only in DC-biased circuits with known polarity, such as 12 V supply rail protection where reverse voltage is impossible. |
Compared with SMAJ10CAHE3/61, the SMAJ10CA-M3/61 offers identical protection performance with halogen-free packaging, while SMAJ10AHE3/61 trades bidirectional symmetry for unidirectional polarity awareness-making it viable only where circuit topology guarantees consistent voltage polarity and avoids reverse conduction paths.
Availability
SMAJ10CAHE3/61 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer power adapter secondary-side protection, and ADAS camera module ESD hardening requiring stable component supply and AEC-Q101 traceability.
Supply support for SMAJ10CAHE3/61 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, TVS devices, and optoelectronics with emphasis on reliability, precision, and automotive-grade qualification.
The SMAJ series is engineered specifically for high-reliability transient suppression in harsh environments-including under-hood automotive, industrial controls, and telecom infrastructure-where robustness against ESD, lightning-induced surges, and inductive switching spikes is critical.
FAQ
What is the clamping voltage of SMAJ10CAHE3/61 at its rated peak pulse current?
The SMAJ10CAHE3/61 has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current (IPPM) of 23.5 A under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for protected downstream components. The clamping performance is verified across temperature and process variations in the production lot.
Is SMAJ10CAHE3/61 suitable for automotive applications?
Yes, SMAJ10CAHE3/61 is AEC-Q101 qualified and explicitly designated for automotive use in Vishay's ordering nomenclature (HE3 suffix). It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias, and ESD-to meet automotive reliability requirements. Its 150 °C maximum junction temperature and MSL Level 1 rating further confirm suitability for under-hood and body-control module deployments.
How does the bidirectional design of SMAJ10CAHE3/61 affect PCB layout?
The bidirectional design of SMAJ10CAHE3/61 eliminates polarity constraints: no cathode band marking is present, and either terminal may connect to any node in the protected circuit. This simplifies layout for AC-coupled lines, differential pairs, or floating grounds-unlike unidirectional variants such as SMAJ10AHE3/61, which require strict orientation. No silkscreen polarity indicator is needed for SMAJ10CAHE3/61.
What is the thermal resistance of SMAJ10CAHE3/61, and how does it impact power dissipation?
SMAJ10CAHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead resistance (RθJL) of 30 °C/W. At 25 °C ambient, its steady-state power dissipation (PD) is 3.3 W-but this drops linearly above 25 °C per the derating curve in Figure 2. Effective copper pad area (0.2" × 0.2") is required to sustain full-rated pulse performance without thermal runaway.
Does SMAJ10CAHE3/61 meet RoHS and lead-free assembly requirements?
Yes, SMAJ10CAHE3/61 is RoHS-compliant and rated for lead-free reflow soldering with a maximum peak temperature of 260 °C per J-STD-020. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability, and it meets JESD 201 Class 2 whisker resistance. The "HE3" suffix confirms both RoHS compliance and AEC-Q101 qualification.
SMAJ10CAHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 23.5A
- Power - Peak Pulse:
- 400W
- 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)
SMAJ10CAHE3/61 FAQ
1.How can I place an order for SMAJ10CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ10CAHE3/61 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 SMAJ10CAHE3/61 reliable?
The price and inventory of SMAJ10CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ10CAHE3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ10CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ10CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ10CAHE3/61?
SMAJ10CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ10CAHE3/61 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 SMAJ10CAHE3/61?
For technical support, including SMAJ10CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ10CAHE3/61 requirements.
6.How does Aetrix verify that SMAJ10CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ10CAHE3/61 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 SMAJ10CAHE3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ10CAHE3/61?
All SMAJ10CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ10CAHE3/61, 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 SMAJ10CAHE3/61 part is unused and in its original packaging.
Return procedure for SMAJ10CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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