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Vishay General Semiconductor - Diodes Division P4SMA36AHE3/61
- Part No.:
- P4SMA36AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA36AHE3/61.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,003
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Product details
Overview
P4SMA36AHE3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 34.2 V minimum breakdown voltage (VBR), 30.8 V standoff voltage (VWM), 49.9 V maximum clamping voltage (VC) at 8.0 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P4SMA36AHE3/61 datasheet, P4SMA36AHE3/61 pinout, P4SMA36AHE3/61 application, or P4SMA36AHE3/61 equivalent, this device delivers AEC-Q101 qualification, low incremental surge resistance, fast response time, and MSL Level 1 moisture sensitivity - critical for automotive-grade transient suppression in engine control units and ADAS sensor interfaces.
Technical Context
The P4SMA36AHE3/61 operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1.0 µA at VWM), while thermal resistance RθJA of 120 °C/W supports operation up to 150 °C junction temperature.
It is rated for 40 A non-repetitive forward surge current (IFSM) and exhibits a temperature coefficient of VBR at +0.099 %/°C. The device meets UL 497B recognition and JESD201 Class 2 whisker resistance, confirming suitability for high-reliability automotive PCB assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working margin below breakdown. |
| VBR (min/max) | 34.2 V / 37.8 V at 1.0 mA test current - Tight 5% tolerance ensures predictable clamping onset across production lots. |
| VC @ IPPM | 49.9 V at 8.0 A - Clamping voltage under 10/1000 µs surge; limits downstream IC stress during ESD or load dump events. |
| PPPM | 400 W - Peak pulse power handling capability; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges. |
| IFSM | 40 A - Single half-sine surge rating (8.3 ms); supports robust protection against inductive switching transients in 12 V systems. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments without derating. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD-HBM/MM. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to protected line ground or low-side return path; defines polarity-sensitive placement on PCB. |
| Cathode | Clamping output / Surge current sink | Connected to protected line (e.g., 12 V rail or CAN_H); conducts surge current to ground during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensors - no requalification needed for Tier 1 designs. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage (<1 µA) over temperature and lifetime, critical for fail-safe protection. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking; eliminates moisture-related popcorning risk during assembly. |
| 400 W peak pulse power (10/1000 µs) | Handles repetitive transients in industrial motor drives and automotive power distribution modules without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage exposure to downstream ICs - e.g., protects 36 V-rated CAN transceivers during load dump. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog outputs of pressure/temperature sensors in engine bay environments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role: Unidirectional TVS placed between sensor supply rail and chassis ground to clamp transients before reaching ASIC or ADC input. Use Value: Limits voltage to ≤49.9 V during 8 A surge, preserving sensor accuracy and preventing latch-up in 3.3 V/5 V signal conditioning circuitry. |
Use Scenario: Safeguarding RS-485 transceiver data lines in factory automation PLCs subject to EFT and lightning-induced surges. IC Role / Device Role: Standoff-connected TVS on differential bus lines (A/B) to suppress common-mode transients without affecting signal integrity. Use Value: Clamps to 49.9 V within nanoseconds, maintaining >10 kV ESD immunity (IEC 61000-4-2) and enabling reliable 10 Mbps communication. |
| Power Supply Input Protection | Motor Drive Gate Driver Protection |
|
Use Scenario: Input-stage surge suppression for 24 V DC-DC converters in railway signaling equipment subjected to EN 50155 surges. IC Role / Device Role: Primary TVS on main input rail upstream of bulk capacitor and controller IC. Use Value: Absorbs 400 W pulses without failure, ensuring converter startup reliability after repeated 10/1000 µs transients up to ±1 kV. |
Use Scenario: Protecting high-side gate driver ICs in BLDC motor inverters from Miller-induced voltage spikes during switching. IC Role / Device Role: Local TVS across gate-source terminals to clamp dv/dt-induced overshoot exceeding MOSFET VGS rating. Use Value: Fast response (<1 ns) and low VC prevent gate oxide damage in 650 V SiC drivers operating at 100 kHz switching frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/61 | Same VWM (30.8 V), but lower PPPM (400 W → 400 W), identical VC (49.9 V), same AEC-Q101 qualification; differs in JEDEC registration and minor thermal resistance (RθJA = 110 °C/W vs. 120 °C/W). | Functionally interchangeable in all P4SMA36AHE3/61 use cases; validated for identical automotive test standards. | Select SMAJ36A-E3/61 if sourcing flexibility or alternate tape/reel configuration (7" reel, 3000 pcs) is required. |
| 1.5SMC36A | Higher package thermal mass (SMC/DO-214AB), larger footprint (7.11 × 6.22 mm vs. 4.57 × 2.79 mm), same electrical specs (VWM, VBR, VC, PPPM), but not AEC-Q101 qualified. | Limited to commercial/industrial use; unsuitable for automotive due to lack of AEC-Q101 validation and higher MSL level (Level 2). | Choose 1.5SMC36A only for cost-sensitive non-automotive applications where board space allows larger SMC package. |
Compared with SMAJ36A-E3/61 and 1.5SMC36A, the P4SMA36AHE3/61 offers optimal balance of AEC-Q101 compliance, compact SMA footprint, and verified 400 W surge capability - making it the preferred choice for space-constrained automotive modules requiring zero requalification effort.
Availability
P4SMA36AHE3/61 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and power supply input surge suppression requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for P4SMA36AHE3/61 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, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The P4SMA series is engineered for surface-mount transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 compliance, low profile, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of P4SMA36AHE3/61 at its rated peak pulse current?
The P4SMA36AHE3/61 has a maximum clamping voltage (VC) of 49.9 V at 8.0 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay Document 88367 and defines the upper voltage limit imposed on protected circuitry during surge events. The P4SMA36AHE3/61 maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C).
Is P4SMA36AHE3/61 qualified for automotive applications?
Yes, P4SMA36AHE3/61 is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in Revision 09-Jan-2024 of Document 88367. It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD (HBM), making it suitable for engine control units, ADAS sensors, and body electronics. The P4SMA36AHE3/61 meets all requirements for Grade 0 and Grade 1 automotive ambient conditions.
What is the standoff voltage (VWM) of P4SMA36AHE3/61, and why does it matter?
The standoff voltage (VWM) of P4SMA36AHE3/61 is 30.8 V - the maximum continuous reverse voltage the device can withstand without significant leakage current (<1.0 µA). This parameter ensures the P4SMA36AHE3/61 remains non-conductive during normal operation of a 24 V or 36 V system, avoiding power loss or false triggering while providing headroom before breakdown (VBR min = 34.2 V). It directly determines compatibility with nominal rail voltages.
Does P4SMA36AHE3/61 have a bidirectional variant?
No, P4SMA36AHE3/61 is strictly unidirectional, indicated by the "A" suffix and cathode band marking. For bidirectional operation, Vishay offers P4SMA36CA (with "CA" suffix), which provides symmetrical clamping in both polarities and no polarity marking. The P4SMA36AHE3/61 must be oriented with cathode toward the protected line; reversing it would result in forward conduction and potential failure under normal bias.
What is the thermal resistance of P4SMA36AHE3/61, and how does it affect layout?
The P4SMA36AHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimal copper area; increasing pad size or adding thermal vias reduces effective RθJA. For sustained power dissipation, designers must ensure the P4SMA36AHE3/61 operates within its 3.3 W steady-state limit and derate above 25 °C ambient using Figure 2 in Document 88367.
P4SMA36AHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 8A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA36AHE3/61 FAQ
1.How can I place an order for P4SMA36AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA36AHE3/61 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 P4SMA36AHE3/61 reliable?
The price and inventory of P4SMA36AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA36AHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA36AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA36AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA36AHE3/61?
P4SMA36AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA36AHE3/61 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 P4SMA36AHE3/61?
For technical support, including P4SMA36AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA36AHE3/61 requirements.
6.How does Aetrix verify that P4SMA36AHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA36AHE3/61 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 P4SMA36AHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA36AHE3/61?
All P4SMA36AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA36AHE3/61, 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 P4SMA36AHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA36AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA36AHE3/61 Tags
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