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Vishay General Semiconductor - Diodes Division SMAJ100CHE3/61
- Part No.:
- SMAJ100CHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ100CHE3/61.pdf
- Description:
- TVS DIODE 100VWM 179VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,204
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Product details
Overview
SMAJ100CHE3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection of sensitive electronics. It features a 100 V stand-off voltage (VWM), 179 V maximum clamping voltage (VC) at 1.7 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 µs waveform - suitable for automotive-grade surge suppression on power rails and signal lines.
For engineers reviewing the SMAJ100CHE3/61 datasheet, SMAJ100CHE3/61 pinout, SMAJ100CHE3/61 application, or SMAJ100CHE3/61 equivalent, key selection criteria include its AEC-Q101 qualification, bi-directional symmetry, low leakage (<1 µA at 100 V), RoHS-compliant high-reliability HE3 construction, and compatibility with automated SMT placement on 5.0 × 5.0 mm copper pads.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified at 111–136 V (min/max) under 1 mA test current. Its clamping behavior is characterized by low dynamic impedance, enabling effective suppression of fast transients such as ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges (IEC 61000-4-5).
Thermally, it exhibits RθJA = 120 °C/W and RθJL = 30 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The device meets MSL level 1 per J-STD-020, with matte tin-plated leads qualified to J-STD-002 and JESD22-B102, and whisker resistance per JESD201 class 2 (HE3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VC @ IPPM | 179 V at 1.7 A - Clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 400 W - Peak pulse power handling capability under standard surge waveform |
| IPPM | 1.7 A - Peak surge current supported at rated clamping voltage |
| VBR min/max | 111 V / 136 V at 1 mA - Ensures consistent breakdown threshold across production lot |
| ID @ VWM | <1 µA - Negligible leakage current preserves system standby power integrity |
| TJ range | –55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, bi-directional configuration with no polarity marking - symmetrical terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | Either terminal serves as input/output; no cathode band - enables layout flexibility and eliminates orientation dependency |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| 400 W peak pulse power | Withstands repetitive 10/1000 µs transients up to 0.01% duty cycle without degradation |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life before reflow; compatible with standard SMT assembly processes |
| Glass passivated junction | Enhances long-term reliability and stability under thermal cycling and humidity exposure |
| RoHS-compliant HE3 construction | High-reliability variant with JESD201 class 2 whisker resistance for mission-critical systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Bi-directional TVS placed at power entry point to clamp surges before LDOs or microcontrollers. Use Value: Limits voltage excursion to ≤179 V during ISO 7637-2 Pulse 5a (load dump), preserving downstream IC integrity. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC modules exposed to field wiring noise. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential or single-ended signal traces to absorb coupled EFT bursts. Use Value: Sub-1 µA leakage ensures minimal DC error; symmetrical clamping prevents signal inversion during bipolar transients. |
| Telecom Line Interface Protection | Consumer Power Adapter Input Stage |
Use Scenario: Shielding Ethernet PHY or RS-485 transceivers connected to unshielded outdoor cabling. IC Role / Device Role / Timing Role: Primary surge limiter on data line pair, coordinated with GDT or polymer PTC upstream. Use Value: Fast response time (<1 ns) and 179 V clamping prevent latch-up or permanent damage to transceiver I/O cells. |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters after rectification and bulk capacitance. IC Role / Device Role / Timing Role: Standoff-rated TVS across DC output to suppress switching spikes and external surges. Use Value: 100 V VWM aligns with 12 V nominal output; HE3 grade ensures longevity in consumer-grade thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100AHE3/61 | Unidirectional; 111–123 V VBR; 162 V VC @ 1.9 A | Requires correct polarity placement; lower clamping but asymmetric protection | Select only when circuit topology mandates unidirectional blocking (e.g., DC-biased rail with ground reference) |
| SMBJ100CHE3/61 | Same VWM/VC, but SMB package (DO-214AA); 600 W PPPM | Larger footprint; higher surge margin but reduced board density | Choose when higher pulse energy handling is required and PCB space permits larger package |
Compared with SMAJ100CHE3/61, the unidirectional SMAJ100AHE3/61 offers tighter clamping but demands strict polarity alignment, while the SMBJ100CHE3/61 delivers 50% higher surge power in a larger footprint - making SMAJ100CHE3/61 optimal for space-constrained, polarity-agnostic automotive and industrial layouts.
Availability
SMAJ100CHE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom line protection, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and repeatable surge performance.
Supply support for SMAJ100CHE3/61 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The SMAJ series is engineered specifically for ruggedized transient suppression in harsh environments - emphasizing AEC-Q101 qualification, low leakage, and stable clamping across temperature and lifetime.
FAQ
What is the clamping voltage of SMAJ100CHE3/61 under standard surge conditions?
The SMAJ100CHE3/61 clamps to a maximum of 179 V when subjected to a 10/1000 µs surge waveform at its rated peak pulse current of 1.7 A. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 29-Oct-08, ensuring predictable overvoltage limiting for downstream circuitry in the SMAJ100CHE3/61 application space.
Is SMAJ100CHE3/61 suitable for automotive use?
Yes, SMAJ100CHE3/61 is explicitly qualified to AEC-Q101 and carries the HE3 suffix denoting high-reliability, automotive-grade construction. It operates from –55 °C to +150 °C, meets MSL Level 1, and is validated for under-hood and chassis-mounted applications - making SMAJ100CHE3/61 appropriate for engine control units, body controllers, and ADAS power domains.
How does the bi-directional nature of SMAJ100CHE3/61 affect PCB layout?
The SMAJ100CHE3/61 has no polarity marking and functions identically in either orientation, eliminating orientation constraints during automated placement. This simplifies layout, avoids assembly errors, and allows flexible routing on bidirectional signal lines or floating power domains - a key advantage of SMAJ100CHE3/61 over unidirectional variants like SMAJ100AHE3/61.
What is the maximum leakage current of SMAJ100CHE3/61 at its stand-off voltage?
At its 100 V stand-off voltage (VWM), the SMAJ100CHE3/61 exhibits a maximum reverse leakage current (ID) of 1 µA at 25 °C. This ultra-low leakage preserves battery life in always-on systems and minimizes measurement error in precision analog front-ends where SMAJ100CHE3/61 is deployed.
Does SMAJ100CHE3/61 require special handling during reflow soldering?
No - SMAJ100CHE3/61 is rated MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C for 40 seconds. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102, and the glass passivated junction ensures robustness through standard lead-free reflow profiles - confirming full process compatibility for SMAJ100CHE3/61 in high-volume SMT lines.
SMAJ100CHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 179V
- Current - Peak Pulse (10/1000µs):
- 1.7A
- Power - Peak Pulse:
- 300W
- 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)
SMAJ100CHE3/61 FAQ
1.How can I place an order for SMAJ100CHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ100CHE3/61 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 SMAJ100CHE3/61 reliable?
The price and inventory of SMAJ100CHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ100CHE3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ100CHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ100CHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ100CHE3/61?
SMAJ100CHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ100CHE3/61 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 SMAJ100CHE3/61?
For technical support, including SMAJ100CHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ100CHE3/61 requirements.
6.How does Aetrix verify that SMAJ100CHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ100CHE3/61 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 SMAJ100CHE3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ100CHE3/61?
All SMAJ100CHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ100CHE3/61, 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 SMAJ100CHE3/61 part is unused and in its original packaging.
Return procedure for SMAJ100CHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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