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Vishay General Semiconductor - Diodes Division P4SMA27AHE3/61
- Part No.:
- P4SMA27AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA27AHE3/61.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,174
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Product details
Overview
P4SMA27AHE3/61 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 27 V breakdown voltage (VBR = 25.7–28.4 V at 1 mA), 23.1 V standoff voltage (VWM), 37.5 V maximum clamping voltage at 10.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the P4SMA27AHE3/61 datasheet, P4SMA27AHE3/61 pinout, P4SMA27AHE3/61 application, or P4SMA27AHE3/61 equivalent, this device serves as an AEC-Q101-qualified transient protection solution for automotive and industrial electronics where robust ESD and surge immunity are required under space-constrained layouts.
Technical Context
The P4SMA27AHE3/61 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 breakdown characteristics and low leakage (<1 µA at VWM).
It delivers 400 W peak pulse power (10/1000 µs) up to 91 V, derating to 300 W above that; thermal resistance is 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), enabling reliable operation up to TJ = 150 °C with appropriate PCB copper pad layout (0.2" × 0.2").
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V at 1 mA - defines precise avalanche initiation window for predictable clamping onset |
| VWM | 23.1 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 37.5 V at 10.7 A - clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 400 W - peak transient energy absorption capability under standard lightning/surge test waveform |
| IPPM | 10.7 A - maximum non-repetitive surge current the device safely handles per pulse |
| TJ max. | +150 °C - maximum junction temperature supporting automotive under-hood and industrial ambient conditions |
| AEC-Q101 qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by band on body; meets UL 94 V-0 flammability rating and J-STD-020 MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected line (e.g., VCC, signal) in unidirectional configuration; conducts during forward surge |
| Cathode | Reverse-biased clamping terminal | Connected to ground; avalanches when reverse voltage exceeds VBR, shunting surge current to GND |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V systems |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage (<1 µA), and long-term reliability under thermal cycling |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., inductive switch-off) |
| MSL Level 1 moisture sensitivity | Allows standard SMT reflow without baking; compatible with high-volume automated assembly |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 24 V supply rail and CAN/LIN signal lines from load-dump and ISO 7637-2 pulses in BCM units. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VBAT and GND, responding within <1 ns to suppress transients before they reach MCU or transceivers. Use Value: Limits clamped voltage to 37.5 V, keeping downstream 3.3 V/5 V logic supplies within safe operating area during 12 V/24 V system surges. |
Use Scenario: Safeguarding 24 V digital input channels of programmable logic controllers against field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Front-end transient suppressor on each opto-isolator input path, absorbing repetitive 10/1000 µs surges up to 400 W without degradation. Use Value: Maintains <1 µA leakage at 23.1 V, ensuring clean logic-level detection while surviving >100,000 surge events per IEC 61000-4-5. |
| Telecom Power Supply Input Stage | Consumer Appliance Motor Driver Protection |
Use Scenario: Secondary-side overvoltage suppression on 48 V telecom rectifier outputs feeding PoE injectors or baseband processors. IC Role / Device Role / Timing Role: Standoff-rated TVS across output rails, activated only during fault conditions such as hot-swap transients or transformer ringing. Use Value: Clamps to 37.5 V with <1 ns response, preventing latch-up in downstream DC/DC converters rated for 36 V max input. |
Use Scenario: Protecting gate drivers and microcontrollers in washing machine motor control boards from back-EMF spikes generated by brushed DC motors. IC Role / Device Role / Timing Role: Unidirectional clamp across half-bridge supply rails, shunting inductive kickback energy away from sensitive logic and gate drivers. Use Value: Withstands 40 A IFSM (8.3 ms half-sine), tolerating repeated motor startup surges without parametric shift or failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ27A | Same VBR range (25.7–28.4 V), but SMB package (DO-214AA); 600 W PPPM; higher thermal mass | Preferred where board space allows larger footprint and higher surge margin is needed | Select SMBJ27A if PCB layout permits larger pad area and 600 W surge rating is required for harsher environments |
| 1.5SMC27A | Same VBR, but SMC (DO-214AB) package; 1500 W PPPM; higher IPPM (43.5 A) | Used in primary-side AC/DC input protection where higher energy handling is mandatory | Choose 1.5SMC27A only for front-end AC line or DC bus protection where >400 W surge capacity is specified |
Compared with SMBJ27A and 1.5SMC27A, the P4SMA27AHE3/61 offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability-making it ideal for space-constrained automotive and industrial PCBs where MSL Level 1 reflow compatibility and automotive reliability are mandatory.
Availability
P4SMA27AHE3/61 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, telecom power interfaces, and consumer appliance motor controls requiring stable component supply with full traceability and lifecycle continuity.
Supply support for P4SMA27AHE3/61 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA27AHE3/61 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom systems where fast response, stable clamping, and AEC-Q101 compliance are critical.
FAQ
What is the breakdown voltage tolerance of the P4SMA27AHE3/61?
The P4SMA27AHE3/61 has a specified breakdown voltage range of 25.7 V to 28.4 V at 1 mA test current, corresponding to ±10 % tolerance around the nominal 27 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports precise system-level surge margin design for the P4SMA27AHE3/61.
Is the P4SMA27AHE3/61 suitable for bidirectional transient protection?
No, the P4SMA27AHE3/61 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the P4SMA27CA variant. Using the P4SMA27AHE3/61 in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
Does the P4SMA27AHE3/61 meet automotive qualification standards?
Yes, the P4SMA27AHE3/61 carries the HE3 suffix, confirming full AEC-Q101 qualification per Vishay's documentation. This includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and ESD (HBM ≥ 8 kV), making the P4SMA27AHE3/61 suitable for automotive powertrain, chassis, and body electronics applications.
What is the maximum clamping voltage of the P4SMA27AHE3/61 under surge conditions?
The P4SMA27AHE3/61 exhibits a maximum clamping voltage (VC) of 37.5 V at 10.7 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by protected circuitry during standardized surge events, directly defining the safe operating margin for downstream components in the P4SMA27AHE3/61 design.
How does the P4SMA27AHE3/61 compare to standard Zener diodes in surge protection?
Unlike general-purpose Zener diodes, the P4SMA27AHE3/61 is optimized for transient suppression: it features lower dynamic impedance, faster response (<1 ns), higher peak power (400 W), and guaranteed clamping performance under surge conditions. Standard Zeners lack defined VC specs and degrade rapidly under repetitive surges-whereas the P4SMA27AHE3/61 maintains stable parameters per AEC-Q101 validation.
P4SMA27AHE3/61 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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 10.7A
- 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)
P4SMA27AHE3/61 FAQ
1.How can I place an order for P4SMA27AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA27AHE3/61 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 P4SMA27AHE3/61 reliable?
The price and inventory of P4SMA27AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA27AHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA27AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA27AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA27AHE3/61?
P4SMA27AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA27AHE3/61 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 P4SMA27AHE3/61?
For technical support, including P4SMA27AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA27AHE3/61 requirements.
6.How does Aetrix verify that P4SMA27AHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA27AHE3/61 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 P4SMA27AHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA27AHE3/61?
All P4SMA27AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA27AHE3/61, 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 P4SMA27AHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA27AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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