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Vishay General Semiconductor - Diodes Division SA5.0AHE3/54
- Part No.:
- SA5.0AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA5.0AHE3/54.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,786
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Product details
Overview
SA5.0AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for primary overvoltage protection of sensitive electronics. It features 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 500 W peak pulse power (10/1000 μs), clamping voltage of 9.2 V at 54.3 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SA5.0AHE3/54 datasheet, SA5.0AHE3/54 pinout, SA5.0AHE3/54 application, or SA5.0AHE3/54 equivalent, this part serves as a robust, RoHS-compliant, lead-free TVS solution for protecting ICs, MOSFETs, and sensor signal lines against inductive switching transients and ESD in automotive, industrial, and telecom systems.
Technical Context
The SA5.0AHE3/54 operates as a unidirectional avalanche diode with glass-passivated junction, enabling fast response to transient events (<1 ns). Its clamping behavior is defined by a low incremental surge resistance and tightly specified VBR tolerance (±5% typical), ensuring predictable voltage limiting during 10/1000 μs surges up to 54.3 A.
Thermal performance is governed by a maximum junction temperature of +175 °C and steady-state power dissipation of 3.0 W on infinite heatsink at TL = 75 °C. The device supports soldering per J-STD-002/JESD 22-B102 and passes JESD 201 Class 2 whisker testing due to its HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum reverse working voltage before conduction; defines safe operating range for continuous DC bias. |
| VBR (min/max) | 6.40 V / 7.07 V at 10 mA - Ensures reliable avalanche initiation within tight tolerance for consistent clamping onset. |
| VC @ IPPM | 9.2 V at 54.3 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on protected circuitry. |
| PPPM | 500 W - Peak pulse power handling capability; enables protection against high-energy transients like ISO 7637-2 Pulse 1/2a. |
| ID @ VWM | 600 μA - Reverse leakage at rated stand-off; low value minimizes quiescent power loss and avoids false triggering. |
| TJ max. | +175 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| IFSM | 70 A - Non-repetitive forward surge current rating; allows survival of brief inrush or fault currents without degradation. |
Pinout & Package
Package: DO-15 (DO-204AC) molded epoxy case with matte tin-plated leads; polarity indicated by cathode band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return in unidirectional configuration; carries full surge current during clamping. |
| Cathode | Protected line connection / Clamping node | Connected to the line being protected (e.g., power rail or signal); conducts when voltage exceeds VBR to shunt energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensors requiring high reliability. |
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term parameter stability under thermal cycling and humidity stress. |
| 500 W peak pulse power (10/1000 μs) | Provides robust immunity to common automotive load dump and inductive switching transients without derating at TA ≤ 25 °C. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage overshoot during clamping, reducing risk of damage to downstream CMOS or analog components. |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability, supporting safety-critical and export-controlled designs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 5 V power rails in engine control modules from ISO 7637-2 load dump pulses and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp transients above 5.0 V while remaining non-conductive during normal operation. Use Value: Limits rail voltage to ≤9.2 V during 54.3 A surges, preventing latch-up or permanent damage to microcontrollers and CAN transceivers. |
Use Scenario: Safeguarding analog output lines of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (used with series resistor) to suppress ESD and fast transients on 0–5 V sensor outputs. Use Value: Sub-10 ns response ensures clamping occurs before sensitive ADC inputs are overstressed, preserving measurement integrity. |
| Telecom Interface Port Protection | Consumer Electronics USB Power Line Protection |
|
Use Scenario: Shielding RS-485 transceiver power pins in base station backhaul equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on +3.3 V or +5 V supply rail feeding isolated RS-485 ICs, coordinated with secondary filtering. Use Value: 500 W rating handles repetitive 10/1000 μs surges per Telcordia GR-1089, maintaining uptime in outdoor cabinet deployments. |
Use Scenario: Adding overvoltage resilience to USB VBUS lines in smart home hubs exposed to accidental 12 V adapter misconnection. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of USB power switch to absorb misapplied voltage before it reaches load switches or PMICs. Use Value: 5.0 V VWM aligns with USB 2.0 spec; 9.2 V VC prevents damage to 5.5 V absolute-maximum-rated USB controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Same DO-214AC package; slightly higher VBR (6.4–7.25 V), identical PPPM (400 W), lower VC (9.6 V @ 43.4 A). | Lower power rating reduces margin for sustained surge events; better suited for space-constrained PCBs where DO-15 footprint is prohibitive. | Select SMAJ5.0A only when board area is critical and surge duty cycle remains <0.01 %. |
| P6KE5.0A | DO-15 package; same VWM/VBR range but lower PPPM (600 W), higher VC (13.4 V @ 37.5 A), no AEC-Q101 qualification. | Lacks automotive qualification and exhibits higher clamping voltage, increasing risk to downstream 5 V logic. | Prefer SA5.0AHE3/54 for automotive or high-reliability industrial use; P6KE5.0A acceptable only in cost-sensitive commercial designs. |
Compared with SMAJ5.0A and P6KE5.0A, SA5.0AHE3/54 delivers superior automotive compliance, tighter VBR tolerance, and lower clamping voltage-making it the optimal choice for protecting 5 V rails where reliability and precise voltage limiting are mandatory.
Availability
SA5.0AHE3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and telecom power rail protection requiring stable component supply and long-term lifecycle support.
Supply support for SA5.0AHE3/54 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The SA5.0AHE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments where AEC-Q101 qualification, low clamping, and stable parametric performance are essential.
FAQ
What is the meaning of the HE3 suffix in SA5.0AHE3/54?
The HE3 suffix in SA5.0AHE3/54 indicates RoHS-compliant construction with matte tin-plated leads and qualification to JESD 201 Class 2 whisker resistance. It also confirms AEC-Q101 qualification, distinguishing it from commercial-grade E3 variants. This makes SA5.0AHE3/54 suitable for automotive and high-reliability industrial applications where long-term interconnect integrity is critical.
Does SA5.0AHE3/54 support bidirectional transient suppression?
No, SA5.0AHE3/54 is a unidirectional TVS diode, as confirmed by its "A" suffix and specification table entries for VF and IFSM. Bidirectional versions use the "CA" suffix (e.g., SA5.0CA). Using SA5.0AHE3/54 in AC-coupled or truly bidirectional signal paths requires external circuitry such as back-to-back configuration or complementary design considerations.
What is the maximum clamping voltage of SA5.0AHE3/54 under standard test conditions?
The maximum clamping voltage (VC) of SA5.0AHE3/54 is 9.2 V at a peak pulse current (IPPM) of 54.3 A, measured with a 10/1000 μs waveform at TA = 25 °C. This value is guaranteed per the datasheet and defines the upper voltage limit imposed on protected circuits during surge events, directly impacting system-level overvoltage margin.
Can SA5.0AHE3/54 be used in place of SA5.0A-E3/54?
Yes, SA5.0AHE3/54 replaces SA5.0A-E3/54 in applications requiring AEC-Q101 qualification and enhanced whisker resistance. Both share identical electrical specs and DO-15 packaging, but SA5.0AHE3/54 adds automotive-grade reliability validation and Class 2 whisker testing-making it the preferred option for automotive designs without layout or schematic changes.
What is the thermal derating behavior of SA5.0AHE3/54 above 25 °C ambient?
SA5.0AHE3/54 follows linear derating above TA = 25 °C per Figure 2 in the datasheet: peak pulse power decreases by ~0.5 %/°C, reaching ~50 % of rated 500 W at TA ≈ 125 °C. For continuous operation, PD derates from 3.0 W at TL = 75 °C per Figure 5, requiring thermal design consideration in enclosed or high-ambient environments.
SA5.0AHE3/54 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 54.3A
- 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)
SA5.0AHE3/54 FAQ
1.How can I place an order for SA5.0AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5.0AHE3/54 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 SA5.0AHE3/54 reliable?
The price and inventory of SA5.0AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5.0AHE3/54 is usually 5 days.
3.What payment methods are accepted for SA5.0AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5.0AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5.0AHE3/54?
SA5.0AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5.0AHE3/54 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 SA5.0AHE3/54?
For technical support, including SA5.0AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5.0AHE3/54 requirements.
6.How does Aetrix verify that SA5.0AHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA5.0AHE3/54 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 SA5.0AHE3/54 meets industry standards.
7.What is the process for return or replacement of SA5.0AHE3/54?
All SA5.0AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA5.0AHE3/54, 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 SA5.0AHE3/54 part is unused and in its original packaging.
Return procedure for SA5.0AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA5.0AHE3/54 Tags
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