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Vishay General Semiconductor - Diodes Division P4SMA39AHE3/61
- Part No.:
- P4SMA39AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA39AHE3/61.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,036
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Product details
Overview
P4SMA39AHE3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping transient overvoltages on power and signal lines. It features a 33.3 V standoff voltage (VWM), 37.1–41.0 V breakdown voltage (VBR) at 1 mA, 53.9 V maximum clamping voltage (VC) at 7.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - suitable for protecting MOSFETs, ICs, and sensor interfaces against inductive switching transients.
For engineers reviewing the P4SMA39AHE3/61 datasheet, P4SMA39AHE3/61 pinout, P4SMA39AHE3/61 application, or P4SMA39AHE3/61 equivalent, this device delivers AEC-Q101 qualification, low incremental surge resistance, fast response time, and MSL Level 1 moisture sensitivity - critical for automotive, industrial, and telecom board-level ESD/surge protection design.
Technical Context
The P4SMA39AHE3/61 operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold to divert surge energy to ground. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 µA at VWM), while thermal resistance (RθJA = 120 °C/W) supports operation up to 150 °C junction temperature under defined PCB pad layout.
It complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive transients) when applied with appropriate series impedance. The cathode-band polarity marking enables unambiguous orientation during automated placement, and its matte tin-plated leads meet J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 33.3 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (Breakdown Voltage) | 37.1–41.0 V at 1 mA - Tight tolerance ensures predictable turn-on across production lots and temperature. |
| VC (Clamping Voltage) | 53.9 V at 7.4 A (10/1000 µs) - Limits downstream voltage stress during surge events to protect 3.3 V/5 V logic and analog circuitry. |
| PPPM (Peak Pulse Power) | 400 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure when mounted per recommended 5.0 mm × 5.0 mm copper pads. |
| IPPM (Peak Pulse Current) | 7.4 A - Peak surge current capability determines minimum series impedance required for target clamping performance. |
| TJmax | 150 °C - Enables reliable operation in under-hood automotive environments and enclosed industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads. Cathode identified by band marking; anode is unmarked end. Complies with UL 94 V-0 flammability rating and J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR. |
| Anode (unmarked end) | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against ISO 7637-2 automotive load dump and inductive switch-off surges without derating below 91 V. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics use with extended temperature cycling, humidity bias, and mechanical shock testing. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage (<1 µA at VWM) across 150 °C operation and 1000+ hours HTOL. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free reflow profiles without preconditioning or baking, reducing manufacturing complexity. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD), improving clamping precision for sensitive 3.3 V interfaces. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power rails from load-dump and alternator ripple in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamps reverse transients on +12 V supply line upstream of LDO regulators. Use Value: Prevents latch-up or permanent damage to 3.3 V MCU cores during ISO 7637-2 Pulse 5a (load dump) events up to 60 V/100 ms. |
Use Scenario: Shields 24 V digital input optocouplers from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Placed across input terminals to clamp fast transients before they reach series current-limiting resistors and opto-LEDs. Use Value: Maintains functional safety integrity by limiting input voltage to <54 V during IEC 61000-4-4 EFT bursts, avoiding false triggering or LED degradation. |
| Telecom Base Station Sensor Interface | Consumer Appliance Motor Driver Protection |
Use Scenario: Safeguards RS-485 transceivers and temperature/humidity sensors connected to outdoor antenna units exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Mounted at connector entry point to shunt common-mode surges before differential line drivers. Use Value: Achieves <10 ns response time and clamps to 53.9 V, keeping RS-485 bus voltage within ±7 V common-mode range during 1 kV/500 A surges. |
Use Scenario: Suppresses flyback voltage spikes from brushed DC motor commutation in smart washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Connected across motor terminals in parallel with freewheeling diode to absorb inductive kick energy. Use Value: Reduces EMI radiated from motor leads and prevents gate oxide damage to half-bridge MOSFETs rated for 60 V drain-source breakdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-E3/52 (Vishay) | Higher VWM (36 V), same VC (58.1 V), SMB package (DO-214AA), 600 W PPPM | Requires larger PCB footprint; better suited for higher-energy 24 V systems where 33.3 V VWM is insufficient. | Select when board space allows larger package and system VWM exceeds 33.3 V but must remain ≤36 V. |
| 1.5SMC39A (ON Semiconductor) | Same VWM/VBR/VC, SMC (DO-214AB) package, 1500 W PPPM, non-AEC-Q101 | Larger case increases thermal mass but lacks automotive qualification; not suitable for OEM automotive designs. | Choose for cost-sensitive industrial applications needing higher surge margin without AEC-Q101 compliance. |
Compared with P4SMA39AHE3/61, SMBJ36A-E3/52 offers higher surge rating and wider VWM headroom in a slightly larger package, while 1.5SMC39A provides greater pulse power at the expense of automotive qualification and board area - making P4SMA39AHE3/61 optimal for space-constrained, AEC-Q101–mandated 12 V automotive and industrial modules.
Availability
P4SMA39AHE3/61 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, telecom sensor interfaces, and consumer appliance motor control requiring stable component supply with full traceability and lifecycle management.
Supply support for P4SMA39AHE3/61 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets board-level transient suppression in automotive, industrial, and telecom systems, delivering AEC-Q101–qualified, surface-mount TVS diodes with tight parametric control and standardized packaging for high-volume automated assembly.
FAQ
What is the clamping voltage of P4SMA39AHE3/61 at its rated peak pulse current?
The P4SMA39AHE3/61 has a maximum clamping voltage (VC) of 53.9 V at 7.4 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions using 0.2" × 0.2" copper pads per terminal and defines the upper voltage limit imposed on protected circuitry during surge events. Engineers must verify that downstream components tolerate this clamped voltage under worst-case surge repetition rates.
Is P4SMA39AHE3/61 suitable for automotive applications?
Yes, P4SMA39AHE3/61 is AEC-Q101 qualified, as indicated by the "HE3" suffix, and is explicitly validated for automotive use per Vishay's qualification program. It meets requirements for temperature cycling, high-temperature reverse bias, and ESD robustness, making it appropriate for engine control units, body control modules, and infotainment power rail protection in passenger vehicles and commercial vehicles.
What does the "HE3" suffix signify in P4SMA39AHE3/61?
The "HE3" suffix in P4SMA39AHE3/61 denotes RoHS-compliant construction and AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" parts and confirms compliance with automotive reliability standards including stress testing for thermal cycling, humidity, and surge endurance - essential for Tier 1 supplier BOMs and OEM approvals.
How does the SMA (DO-214AC) package of P4SMA39AHE3/61 compare to SMB or SMC packages?
The SMA package of P4SMA39AHE3/61 measures 4.50 mm × 3.99 mm × 2.29 mm, offering a smaller footprint than SMB (DO-214AA) and significantly smaller than SMC (DO-214AB). While its 400 W peak pulse rating is lower than SMBJ (600 W) or 1.5SMC (1500 W) devices, the SMA enables high-density layouts in space-constrained modules such as automotive ADAS sensors and compact industrial I/O cards where board area is premium.
What is the maximum operating junction temperature for P4SMA39AHE3/61?
The maximum operating junction temperature (TJmax) for P4SMA39AHE3/61 is +150 °C, consistent across all P4SMA unidirectional variants. This rating allows continuous operation in under-hood environments and sealed industrial enclosures, provided PCB thermal design maintains junction-to-ambient temperature rise within limits - typically requiring ≥5.0 mm × 5.0 mm copper pads per terminal per Vishay's thermal characterization data.
P4SMA39AHE3/61 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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 7.4A
- 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)
P4SMA39AHE3/61 FAQ
1.How can I place an order for P4SMA39AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA39AHE3/61 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 P4SMA39AHE3/61 reliable?
The price and inventory of P4SMA39AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA39AHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA39AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA39AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA39AHE3/61?
P4SMA39AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA39AHE3/61 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 P4SMA39AHE3/61?
For technical support, including P4SMA39AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA39AHE3/61 requirements.
6.How does Aetrix verify that P4SMA39AHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA39AHE3/61 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 P4SMA39AHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA39AHE3/61?
All P4SMA39AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA39AHE3/61, 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 P4SMA39AHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA39AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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