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Vishay General Semiconductor - Diodes Division SA100CHE3/73
- Part No.:
- SA100CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA100CHE3/73.pdf
- Description:
- TVS DIODE 100VWM 179VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,737
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Product details
Overview
SA100CHE3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 100 V stand-off voltage (VWM), 123 V minimum breakdown voltage (VBR), 162 V maximum clamping voltage (VC) at 3.1 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 μs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SA100CHE3/73 datasheet, SA100CHE3/73 pinout, SA100CHE3/73 application, or SA100CHE3/73 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, DO-15 mechanical compatibility, and verified 175 °C junction temperature rating under transient stress.
Technical Context
This device operates as a voltage-clamped shunt protector: when reverse (or forward, in bi-directional mode) voltage exceeds VBR, it avalanches to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance across repeated transients.
Designed for repetitive 10/1000 μs surges at ≤0.01% duty cycle, SA100CHE3/73 maintains clamping performance up to TJ = 175 °C and supports soldering per JESD 22-B106 (275 °C, 10 s). The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (min) | 111 V - guaranteed avalanche initiation voltage at 1 mA test current, ensuring predictable turn-on |
| VC (max) | 162 V - clamped voltage at 3.1 A IPPM, defining worst-case overvoltage seen by protected IC |
| PPPM | 500 W - peak transient power handling with 10/1000 μs waveform, enabling robust ESD/lightning surge immunity |
| TJ max | 175 °C - maximum junction temperature, supporting operation in under-hood automotive environments |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with UL 94 V-0 molded epoxy housing |
| Qualification | AEC-Q101 qualified - validated for automotive electronic systems requiring high reliability and thermal cycling endurance |
Pinout & Package
SA100CHE3/73 is a two-terminal bi-directional TVS diode in DO-204AC (DO-15) package. No polarity marking is present, as conduction occurs symmetrically in both directions. Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bi-directional surge current path | Either terminal serves as input/output; no DC polarity dependency - enables placement flexibility on AC-coupled or floating lines |
| Case (epoxy body) | Isolation barrier | UL 94 V-0 rated molding compound prevents flame propagation and provides mechanical protection for passivated chip junction |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 500 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) in properly impedance-matched circuits |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive powertrain, body control, and ADAS sensor interfaces without derating |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes let-through overvoltage during transients, protecting 100 V-rated MOSFETs and analog front-ends |
| Matte tin-plated leads | Enables reliable reflow and wave soldering while meeting JESD 201 Class 2 whisker resistance requirements |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Inputs |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and temperature/pressure sensors exposed to load dump and inductive switching noise in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional shunt clamp placed at connector entry point to limit transient voltage before signal conditioning circuitry. Use Value: Clamps 100 V surges to ≤162 V within nanoseconds, preserving sensor accuracy and preventing latch-up in 3.3 V/5 V microcontrollers. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog acquisition channels in factory automation controllers. IC Role / Device Role / Timing Role: Primary overvoltage limiter on field-side I/O terminals subjected to accidental 24 V DC miswiring or lightning-induced surges. Use Value: Withstands 500 W pulses without degradation, maintaining signal integrity across decades of industrial deployment cycles. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHY magnetics and DSL line drivers from ESD events and induced surges on outdoor-facing ports. IC Role / Device Role / Timing Role: Secondary-level protection stage after gas discharge tube (GDT), providing fast-response clamping for sub-microsecond transients. Use Value: 123–135 V VBR range aligns with telecom line voltage margins, enabling precise coordination with upstream coarse protectors. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Low-inductance shunt element mounted directly at motor connector to minimize loop area and reduce radiated emissions. Use Value: DO-15 axial package allows direct PCB mounting near motor terminals, achieving <10 ns response and limiting spike amplitude to safe MCU levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/5A (Vishay) | Uni-directional, same VWM/VBR/VC specs but lacks bi-directional symmetry; SMA package (SMD) | Requires polarity-aware layout; unsuitable for AC or floating differential lines | Select only if board space constraints mandate SMD and circuit polarity is fixed |
| P6SMB100CA (Littelfuse) | Same DO-214AA (SMB) package, 100 V VWM, 123 V VBR min, but rated for 600 W PPPM and higher IPPM (3.3 A) | Higher surge margin enables use in higher-energy industrial mains interfaces | Prefer when system-level surge testing exceeds IEC 61000-4-5 Level 4 or requires extended lifetime under repetitive stress |
Compared with SA100CHE3/73, SMAJ100A-E3/5A offers surface-mount convenience but sacrifices bi-directional flexibility, while P6SMB100CA delivers greater pulse energy handling in a different package - choice depends on layout constraints, polarity requirements, and system-level surge severity.
Availability
SA100CHE3/73 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC analog inputs, and telecom line interface designs requiring stable component supply and AEC-Q101 compliance.
Supply support for SA100CHE3/73 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 passive components with emphasis on reliability and automotive-grade qualification.
The SAxxxA/SAxxxCA series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure due to voltage surges must be eliminated.
FAQ
What is the polarity configuration of SA100CHE3/73?
SA100CHE3/73 is a bi-directional TVS diode with no polarity marking on the DO-204AC package. It conducts symmetrically in both directions above its breakdown voltage, making it ideal for AC-coupled signals, differential buses, or floating ground applications where voltage polarity reversal may occur.
Does SA100CHE3/73 meet automotive reliability standards?
Yes, SA100CHE3/73 carries the HE3 suffix, confirming full AEC-Q101 qualification. This includes stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - validating its use in engine control units, body electronics, and ADAS sensor modules.
What is the maximum clamping voltage of SA100CHE3/73 under surge conditions?
The maximum clamping voltage (VC) of SA100CHE3/73 is 162 V at 3.1 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during standardized surge events, ensuring compatibility with 100 V-rated components.
Can SA100CHE3/73 replace uni-directional TVS diodes in existing designs?
SA100CHE3/73 can replace uni-directional types only if the circuit does not rely on DC blocking behavior - e.g., in AC signal paths or fully differential interfaces. In DC-biased lines, substitution requires verification that reverse leakage and forward conduction do not disrupt bias networks or logic states.
What is the thermal derating behavior of SA100CHE3/73 above 25 °C ambient?
SA100CHE3/73 follows standard TVS derating: peak pulse power remains constant up to TJ = 175 °C, but steady-state power dissipation (PD = 3.0 W) decreases linearly above TA = 25 °C per Vishay's Fig. 2 and Fig. 5. At 75 °C lead temperature, PD drops to ~2.0 W, requiring appropriate PCB copper area for heat spreading.
SA100CHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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):
- 2.8A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA100CHE3/73 FAQ
1.How can I place an order for SA100CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA100CHE3/73 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 SA100CHE3/73 reliable?
The price and inventory of SA100CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA100CHE3/73 is usually 5 days.
3.What payment methods are accepted for SA100CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA100CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA100CHE3/73?
SA100CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA100CHE3/73 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 SA100CHE3/73?
For technical support, including SA100CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA100CHE3/73 requirements.
6.How does Aetrix verify that SA100CHE3/73 is sourced from the original manufacturer or authorized distributors?
All SA100CHE3/73 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 SA100CHE3/73 meets industry standards.
7.What is the process for return or replacement of SA100CHE3/73?
All SA100CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA100CHE3/73, 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 SA100CHE3/73 part is unused and in its original packaging.
Return procedure for SA100CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA100CHE3/73 Tags
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