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Vishay General Semiconductor - Diodes Division SA16CAHE3/54
- Part No.:
- SA16CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA16CAHE3/54.pdf
- Description:
- TVS DIODE 16VWM 26VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,075
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Product details
Overview
SA16CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, rated for 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 µs), 19.2 A peak pulse current (IPPM), and 26.0 V clamping voltage (VC) at IPPM. It protects signal lines and power rails in automotive sensor interfaces and industrial control inputs against ESD and inductive switching transients.
For engineers reviewing the SA16CAHE3/54 datasheet, SA16CAHE3/54 pinout, SA16CAHE3/54 application, or SA16CAHE3/54 equivalent, this AEC-Q101 qualified TVS offers verified bidirectional clamping, DO-15 mechanical compatibility, low leakage (<1.0 µA at VWM), and stable thermal performance up to +175 °C junction temperature - critical for under-hood automotive and high-reliability industrial designs.
Technical Context
The SA16CAHE3/54 operates as a symmetrical silicon avalanche diode with identical electrical characteristics in both directions, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures consistent breakdown behavior and long-term reliability under repetitive surge stress.
Designed for 10/1000 µs waveform compliance, it delivers 500 W peak pulse power with <26.0 V clamping at 19.2 A, and exhibits low incremental surge resistance for minimal voltage overshoot during fast transients. The device is rated for -55 °C to +175 °C operating junction temperature and meets JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuit. |
| VBR (min/max) | 17.8 V / 19.7 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on within specification tolerance. |
| VC @ IPPM | 26.0 V at 19.2 A - Clamped voltage during 500 W transient; limits downstream IC stress to safe levels. |
| IPPM | 19.2 A - Peak surge current capability with 10/1000 µs waveform; supports common IEC 61000-4-5 Level 4 immunity. |
| PPPM | 500 W - Peak pulse power rating; enables robust protection against lightning-induced surges and inductive kickback. |
| TJ max | +175 °C - Maximum junction temperature; supports operation in under-hood automotive environments and sealed industrial enclosures. |
| Leakage ID | <1.0 µA at 16 V - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss. |
Pinout & Package
DO-15 (DO-204AC) molded epoxy package with matte tin-plated leads; no polarity marking required for bidirectional operation; compliant with UL 94 V-0 flammability rating and RoHS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No functional distinction between terminals; either lead may connect to line or ground - simplifies PCB layout for AC or floating signals. |
| Lead 1 / Lead 2 | Current path terminals | Both leads conduct identically in forward or reverse bias above VBR; no cathode band marking per datasheet note. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| Glass passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift. |
| 500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and telecom equipment. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage exposure to protected ICs - e.g., 26.0 V clamp vs. 18.8 V typical VBR. |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability applications with extended temperature cycling. |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role: Bidirectional clamping element placed across signal pair or signal-to-ground to shunt transients before they reach sensitive interface ICs. Use Value: Maintains signal fidelity during 10/1000 µs surges up to 500 W while operating reliably at +125 °C ambient under hood. | Use Scenario: Safeguarding 24 V DC digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role: Primary overvoltage clamp on input terminal blocks, absorbing repetitive inductive energy without degradation. Use Value: Enables >100,000 surge cycles with <1.0 µA leakage at 16 V - preserving input threshold accuracy over system lifetime. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station backhaul units from lightning-induced common-mode surges. IC Role / Device Role: Symmetrical TVS across differential pairs (A/B) and to chassis ground, providing balanced clamping without skew. Use Value: Matches impedance of twisted-pair lines due to low capacitance (~100 pF at 0 V) and bidirectional symmetry. | Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role: Low-leakage, high-energy clamp across motor terminals or H-bridge outputs to prevent MCU reset or latch-up. Use Value: Withstands 70 A non-repetitive forward surge (IFSM) and operates continuously at -55 °C to +175 °C junction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16CA | Same VWM (16 V), lower PPPM (400 W), SMA package (smaller footprint, lower thermal mass) | Preferred for space-constrained consumer PCBs; less suitable for high-temperature industrial environments due to lower PD (1.0 W vs. 3.0 W) | Select SMAJ16CA only when board area is critical and surge duty cycle remains below 0.01 %. |
| 1.5KE16CA | Same VWM (16 V), higher PPPM (1500 W), DO-204AL (DO-41) package, higher IPPM (86.4 A) | Better suited for primary-level AC mains or high-energy DC bus protection; larger package requires more PCB real estate | Choose 1.5KE16CA when protecting high-current power rails where 500 W is insufficient and DO-15 mechanical fit is not mandatory. |
Compared with SMAJ16CA and 1.5KE16CA, SA16CAHE3/54 uniquely balances AEC-Q101 qualification, 3.0 W steady-state dissipation, DO-15 mechanical robustness, and 500 W surge capacity - making it optimal for automotive-grade signal-line protection where reliability, thermal margin, and industry certification are jointly required.
Availability
SA16CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line protection, and consumer appliance motor control requiring stable component supply and full traceability.
Supply support for SA16CAHE3/54 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, automotive qualification, and industrial ruggedness.
The SAxxCA series is designed specifically for bidirectional transient suppression in harsh environments - targeting automotive, industrial automation, and infrastructure applications demanding AEC-Q101 compliance and high surge endurance.
FAQ
What is the clamping voltage of SA16CAHE3/54 at its rated peak pulse current?
The SA16CAHE3/54 has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPPM) of 19.2 A, measured using the standard 10/1000 µs waveform. This value ensures protected circuits remain below critical overvoltage thresholds during surge events, and is confirmed in the Vishay datasheet Document Number 88378, page 2.
Is SA16CAHE3/54 suitable for automotive applications?
Yes, SA16CAHE3/54 is AEC-Q101 qualified (per datasheet note on page 3), features JESD 201 Class 2 whisker resistance, and operates from -55 °C to +175 °C junction temperature - making it suitable for under-hood and body-control module applications. Its bidirectional symmetry also supports CAN, LIN, and sensor signal protection without polarity constraints.
Does SA16CAHE3/54 have polarity markings on the package?
No, SA16CAHE3/54 does not have polarity markings. As a bidirectional TVS diode, it has identical electrical characteristics in both directions and no cathode band - per datasheet note: "no marking on bidirectional types." This eliminates orientation errors during automated assembly and simplifies layout for differential or AC-coupled lines.
What is the maximum steady-state power dissipation for SA16CAHE3/54?
The SA16CAHE3/54 has a maximum steady-state power dissipation (PD) of 3.0 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C, as specified in the "Maximum Ratings" table (page 1). Derating applies above 25 °C ambient, per Figure 5 in the datasheet.
How does SA16CAHE3/54 differ from unidirectional SA16AHE3/54?
SA16CAHE3/54 is bidirectional with symmetric clamping in both directions and no polarity marking, whereas SA16AHE3/54 is unidirectional with a cathode band and conducts only in reverse bias. The "CA" suffix explicitly denotes bidirectional function, and SA16CAHE3/54 supports AC signal protection, while SA16AHE3/54 is limited to DC rail or single-ended line protection.
SA16CAHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 19.2A
- 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)
SA16CAHE3/54 FAQ
1.How can I place an order for SA16CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA16CAHE3/54 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 SA16CAHE3/54 reliable?
The price and inventory of SA16CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA16CAHE3/54 is usually 5 days.
3.What payment methods are accepted for SA16CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA16CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA16CAHE3/54?
SA16CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA16CAHE3/54 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 SA16CAHE3/54?
For technical support, including SA16CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA16CAHE3/54 requirements.
6.How does Aetrix verify that SA16CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA16CAHE3/54 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 SA16CAHE3/54 meets industry standards.
7.What is the process for return or replacement of SA16CAHE3/54?
All SA16CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA16CAHE3/54, 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 SA16CAHE3/54 part is unused and in its original packaging.
Return procedure for SA16CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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