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Vishay General Semiconductor - Diodes Division SA16CHE3/54
- Part No.:
- SA16CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA16CHE3/54.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,549
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Product details
Overview
SA16CHE3/54 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 54 V stand-off voltage (VWM), 60 V minimum breakdown voltage (VBR), 500 W peak pulse power (10/1000 µs), 5.7 A peak pulse current (IPPM), and clamping voltage of 87.1 V at IPPM. It protects signal lines and power rails in automotive sensor interfaces against ESD and inductive switching transients.
For engineers reviewing the SA16CHE3/54 datasheet, SA16CHE3/54 pinout, SA16CHE3/54 application, or SA16CHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, bi-directional clamping symmetry, 175 °C max junction temperature, RoHS-compliant HE3 terminations, and compatibility with 13" paper tape & reel packaging for automated assembly.
Technical Context
The SA16CHE3/54 operates as a bi-directional avalanche diode, exhibiting symmetrical reverse and forward conduction above its breakdown threshold in both directions. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, enabling consistent clamping performance under repetitive 10/1000 µs transients at 0.01 % duty cycle.
Designed for automotive-grade reliability, it meets AEC-Q101 stress test requirements and supports operation from –55 °C to +175 °C. The device uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, with JESD 201 Class 2 whisker resistance - confirmed by HE3 suffix designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping onset |
| VBR (min) | 60 V at 1 mA - Guaranteed avalanche initiation threshold; ensures predictable turn-on during overvoltage events |
| VC @ IPPM | 87.1 V at 5.7 A - Clamped voltage during 500 W transient; limits downstream IC stress to sub-90 V level |
| PPPM | 500 W (10/1000 µs) - Peak transient energy handling capacity; validated per REA-defined waveform |
| IPPM | 5.7 A - Peak current supported at VC; determines minimum series impedance needed for protection coordination |
| TJ max | +175 °C - Maximum junction temperature; enables placement near high-power components without derating |
| Leakage (ID) | 1.0 µA @ 54 V - Ultra-low reverse leakage preserves signal integrity in high-impedance sensor circuits |
Pinout & Package
SA16CHE3/54 is housed in a DO-204AC (DO-15) molded epoxy package with axial leads. The device is bi-directional and unmarked - no polarity band or cathode indicator is present on the case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional avalanche junction | Either lead serves as input/output terminal; identical clamping behavior in both directions |
| Lead 1 | External connection point | Matte tin-plated, solderable per J-STD-002; supports 275 °C dip for ≤10 s |
| Lead 2 | External connection point | Same metallization and mechanical specs as Lead 1; no functional distinction between terminals |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including engine control units and ADAS sensor modules |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| 500 W peak pulse rating (10/1000 µs) | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without degradation |
| Bi-directional symmetry | Clamps equally on positive and negative transients - eliminates need for dual-device solutions in AC-coupled lines |
| HE3 termination | Meets JESD 201 Class 2 whisker resistance - critical for long-term reliability in vibration-prone automotive systems |
Applications
| Automotive CAN Bus Protection | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L differential pair in vehicle body control modules from load dump and ESD. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential bus, shunting transients before they reach CAN transceiver inputs. Use Value: Maintains <54 V common-mode standoff while clamping ±87.1 V peaks - preserving CAN physical layer compliance and bit error rate. | Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA, 0–10 V) from field wiring induced surges in PLC I/O modules. IC Role / Device Role / Timing Role: Primary overvoltage protector at connector interface, upstream of signal conditioning circuitry. Use Value: Sub-100 ns response time and symmetric clamping prevent latch-up or damage to precision op-amps and ADC drivers. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing low-clamp refinement. Use Value: 87.1 V clamping at 5.7 A enables coordination with upstream GDTs to meet ITU-T K.20/21 immunity requirements. | Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., washing machine drum drives). IC Role / Device Role / Timing Role: Snubber across motor terminals or H-bridge outputs to limit voltage spikes during commutation. Use Value: 175 °C rating allows direct mounting near motor driver ICs; 500 W rating handles repeated 100 ms switching events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54CA | Same VWM (54 V), lower PPPM (400 W), SMA package (smaller footprint, lower thermal mass) | Preferred for space-constrained PCBs where 400 W surge margin suffices; not AEC-Q101 qualified | Select SMAJ54CA only if automotive qualification is unnecessary and board area is critical |
| 1.5KE54CA | Same VWM (54 V), higher PPPM (1500 W), DO-201AD package (larger, higher thermal inertia) | Suitable for industrial mains-connected equipment requiring higher single-pulse energy absorption | Choose 1.5KE54CA when protecting AC-input stages or high-energy inductive loads beyond automotive scope |
Compared with SMAJ54CA and 1.5KE54CA, SA16CHE3/54 uniquely combines AEC-Q101 qualification, DO-15 mechanical robustness, and precise 5.7 A / 87.1 V clamping behavior - making it the preferred choice for automotive signal-line protection where reliability and standardized packaging are mandatory.
Availability
SA16CHE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and DO-15 through-hole manufacturability.
Supply support for SA16CHE3/54 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 passive components with emphasis on reliability and automotive-grade validation.
The SAxxCHx family delivers AEC-Q101-qualified TVS diodes optimized for bi-directional transient suppression in harsh automotive environments - targeting engine control, infotainment, and ADAS subsystems where signal integrity and long-term stability are non-negotiable.
FAQ
What is the breakdown voltage range for SA16CHE3/54?
The SA16CHE3/54 has a minimum breakdown voltage (VBR) of 60 V and a maximum of 66.3 V at 1 mA test current, per the Vishay datasheet revision 18-Sep-12. This 60–66.3 V range ensures reliable, repeatable avalanche conduction during overvoltage events while maintaining margin above its 54 V stand-off rating. The SA16CHE3/54's specified VBR tolerance supports robust design margins in automotive and industrial applications.
Is SA16CHE3/54 suitable for automotive applications?
Yes, SA16CHE3/54 is explicitly AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's SA5.0A–SA170CA datasheet. It operates from –55 °C to +175 °C, features JESD 201 Class 2 whisker-resistant terminations, and meets automotive surge immunity requirements including ISO 7637-2. The SA16CHE3/54 is designed for use in engine control units, body electronics, and ADAS sensor modules where qualification and thermal resilience are mandatory.
What does the "HE3" suffix indicate in SA16CHE3/54?
The "HE3" suffix in SA16CHE3/54 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike the commercial-grade "E3" variant, HE3 specifies enhanced reliability testing for automotive use, including extended temperature cycling and mechanical shock validation. The SA16CHE3/54's HE3 marking confirms its suitability for under-hood and safety-critical vehicle subsystems.
What is the clamping voltage of SA16CHE3/54 at its rated peak pulse current?
The SA16CHE3/54 clamps to a maximum of 87.1 V at its rated peak pulse current (IPPM) of 5.7 A, measured using the standard 10/1000 µs waveform. This clamping voltage defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring downstream ICs remain within absolute maximum ratings. The SA16CHE3/54's 87.1 V VC is guaranteed across its full operating temperature range.
Does SA16CHE3/54 have polarity markings?
No, SA16CHE3/54 does not have polarity markings because it is a bi-directional TVS diode. As stated in the Vishay datasheet, "no marking on bi-directional types." Both leads are functionally identical, and the device provides symmetrical clamping in either direction - eliminating the need for orientation-aware placement during assembly. This simplifies layout and reduces risk of misplacement in designs using SA16CHE3/54.
SA16CHE3/54 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 17.4A
- 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)
SA16CHE3/54 FAQ
1.How can I place an order for SA16CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA16CHE3/54 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 SA16CHE3/54 reliable?
The price and inventory of SA16CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA16CHE3/54 is usually 5 days.
3.What payment methods are accepted for SA16CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA16CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA16CHE3/54?
SA16CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA16CHE3/54 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 SA16CHE3/54?
For technical support, including SA16CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA16CHE3/54 requirements.
6.How does Aetrix verify that SA16CHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA16CHE3/54 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 SA16CHE3/54 meets industry standards.
7.What is the process for return or replacement of SA16CHE3/54?
All SA16CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA16CHE3/54, 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 SA16CHE3/54 part is unused and in its original packaging.
Return procedure for SA16CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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