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Vishay General Semiconductor - Diodes Division SA36AHE3/54
- Part No.:
- SA36AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA36AHE3/54.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,450
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Product details
Overview
SA36AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for circuit protection against ESD and surge events. It features 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1.0 mA, 58.1 V clamping voltage (VC) at 8.6 A peak pulse current (IPPM), and 500 W peak pulse power capability with 10/1000 μs waveform - used to safeguard power rails and I/O lines in automotive control modules.
For engineers reviewing the SA36AHE3/54 datasheet, SA36AHE3/54 pinout, SA36AHE3/54 application, or SA36AHE3/54 equivalent, key selection criteria include clamping performance under 8.6 A surge, AEC-Q101 qualification for automotive use, DO-15 mechanical compatibility, and 175 °C maximum junction temperature for under-hood deployment.
Technical Context
The SA36AHE3/54 operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 40.0–44.2 V breakdown range and clamping transients to ≤58.1 V at 8.6 A. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 μA at 36 V).
Designed for repetitive surge immunity, it supports 500 W peak pulse power (10/1000 μs), 3.0 W steady-state dissipation on infinite heatsink, and withstands 70 A non-repetitive forward surge (10 ms half-sine). The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 40.0 V / 44.2 V at 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage detection |
| VC @ IPPM | 58.1 V at 8.6 A - clamped voltage during worst-case surge, limiting stress on downstream ICs |
| PPPM | 500 W (10/1000 μs) - surge energy handling capacity compatible with ISO 7637-2 Pulse 1/2a/3a test profiles |
| IFSM | 70 A (10 ms half-sine) - robustness against inrush or load-dump surges in 12 V automotive systems |
| TJ max | +175 °C - enables placement near high-temperature engine-control units without derating |
| ID @ VWM | ≤1.0 μA - negligible leakage current preserving battery life in always-on vehicle networks |
Pinout & Package
SA36AHE3/54 uses the DO-15 (DO-204AC) axial-leaded package: molded epoxy body, matte tin-plated leads solderable per J-STD-002, 0.130–0.138 inch diameter, 1.0 inch minimum lead length, RoHS-compliant and AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward conduction path | Connects to lower-potential side (e.g., ground or return rail) in unidirectional configuration |
| Cathode (banded end) | Avalanche clamping node | Connects to protected line (e.g., 12 V supply or CAN-H); color band identifies polarity for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures tight VBR tolerance (±5 % typical), stable leakage, and long-term reliability under thermal cycling |
| 500 W peak pulse rating (10/1000 μs) | Meets ISO 7637-2 and SAE J1113-11 surge immunity requirements for automotive electronics |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive under-hood applications including engine control, body electronics, and ADAS sensors |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes voltage overshoot during transient events, protecting 3.3 V/5 V logic interfaces downstream |
| DO-15 mechanical standardization | Enables drop-in replacement across legacy designs and compatibility with automated axial insertion equipment |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and input filter capacitor. Use Value: Limits transient voltage to ≤58.1 V during 8.6 A surges, preventing damage to LDO regulators and microcontrollers rated for 40 V absolute maximum. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation. IC Role / Device Role / Timing Role: Bidirectional-capable but used unidirectionally across sensor supply and ground to suppress EFT bursts. Use Value: Sub-1 μA leakage at 36 V preserves signal accuracy; 175 °C TJ rating supports operation in sealed enclosures near motors. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Guarding DC power inputs of VoIP gateway line cards against lightning-induced surges on PoE-derived supplies. IC Role / Device Role / Timing Role: Primary clamping device on +48 V input rail upstream of DC/DC converter. Use Value: 500 W PPPM rating handles multiple 10/1000 μs surges per minute; DO-15 footprint simplifies board-level layout for telecom standards compliance. | Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp flyback voltage during MOSFET turn-off. Use Value: 70 A IFSM withstands repeated commutation spikes; glass passivation prevents degradation under humid, detergent-exposed conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/52 | Same VWM (36 V), same DO-214AC package, but lower PPPM (400 W) and higher VC (60.0 V at 6.9 A) | Less robust for high-energy automotive load dump; better suited for space-constrained consumer PCBs | Select SMAJ36A-E3/52 only if board area is critical and surge energy remains below 400 W |
| P6SMB36AHE3_A/H | Identical VWM/VBR/VC specs, same AEC-Q101 qualification, but SMB (DO-214AA) surface-mount package | Requires re-layout for SMT assembly; eliminates axial lead forming but reduces manual repairability | Choose P6SMB36AHE3_A/H for automated high-volume production where DO-15 through-hole is not required |
Compared with SMAJ36A-E3/52 and P6SMB36AHE3_A/H, SA36AHE3/54 offers superior 500 W surge handling in a serviceable axial package with proven under-hood reliability - making it optimal for automotive and industrial designs requiring field maintainability and high-energy immunity.
Availability
SA36AHE3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and appliance motor controllers requiring stable component supply across extended temperature and lifecycle demands.
Supply support for SA36AHE3/54 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 and automotive-grade qualification.
The SAxxA series is part of Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and repeatable clamping performance.
FAQ
What is the clamping voltage of SA36AHE3/54 and how does it protect downstream components?
The SA36AHE3/54 clamps at 58.1 V when subjected to an 8.6 A peak pulse current (10/1000 μs waveform). This limits transient overvoltage seen by downstream ICs - such as microcontrollers or voltage regulators rated for 40 V absolute maximum - preventing latch-up or permanent damage. Its low incremental clamping resistance ensures fast, predictable voltage limiting during fast-rising surges like ESD or inductive switching events.
Is SA36AHE3/54 suitable for automotive applications, and what qualifications does it hold?
Yes, SA36AHE3/54 is explicitly qualified to AEC-Q101 for automotive use, confirmed by the HE3 suffix. It operates from –55 °C to +175 °C, supports 70 A forward surge current, and meets ISO 7637-2 surge immunity requirements. These characteristics make SA36AHE3/54 appropriate for engine control units, body control modules, and ADAS sensor interfaces exposed to harsh thermal and electrical environments.
How does the DO-15 package of SA36AHE3/54 impact PCB design and thermal performance?
The DO-15 (DO-204AC) axial package of SA36AHE3/54 provides mechanical robustness, ease of manual inspection and replacement, and compatibility with legacy through-hole assembly lines. With 3.0 W steady-state power dissipation at TL = 75 °C and low thermal resistance via lead conduction, it delivers reliable heat transfer in ventilated or moderate-airflow environments - especially valuable in automotive fuse boxes and industrial control panels where airflow is limited.
What is the difference between SA36AHE3/54 and SA36CAHE3/54, and which should I choose?
SA36AHE3/54 is unidirectional (cathode-banded), while SA36CAHE3/54 is bidirectional (no band, symmetrical clamping). Use SA36AHE3/54 for DC power rail protection where polarity is fixed (e.g., 12 V battery input); choose SA36CAHE3/54 for AC-coupled or differential signal lines like RS-485 or CAN bus. Both share identical VWM (36 V), VBR (40.0–44.2 V), and PPPM (500 W), but SA36AHE3/54 offers lower leakage and tighter VBR tolerance in DC applications.
Does SA36AHE3/54 require external heat sinking, and what is its maximum junction temperature?
No external heat sink is required for SA36AHE3/54 under typical surge conditions, as its 500 W peak pulse rating is defined for non-repetitive events. For continuous power dissipation, it delivers 3.0 W at TL = 75 °C with natural convection. Its maximum junction temperature is +175 °C - verified per AEC-Q101 - enabling direct placement near hot components like power MOSFETs or ignition coils without thermal derating in most automotive implementations.
SA36AHE3/54 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 8.6A
- 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)
SA36AHE3/54 FAQ
1.How can I place an order for SA36AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA36AHE3/54 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 SA36AHE3/54 reliable?
The price and inventory of SA36AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA36AHE3/54 is usually 5 days.
3.What payment methods are accepted for SA36AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA36AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA36AHE3/54?
SA36AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA36AHE3/54 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 SA36AHE3/54?
For technical support, including SA36AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA36AHE3/54 requirements.
6.How does Aetrix verify that SA36AHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA36AHE3/54 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 SA36AHE3/54 meets industry standards.
7.What is the process for return or replacement of SA36AHE3/54?
All SA36AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA36AHE3/54, 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 SA36AHE3/54 part is unused and in its original packaging.
Return procedure for SA36AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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