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Vishay General Semiconductor - Diodes Division P4SMA150AHE3_A/H
- Part No.:
- P4SMA150AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150AHE3_A/H.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA150AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 150 V standoff voltage (VWM), 143–158 V breakdown voltage (VBR) at 1 mA, and 207 V clamping voltage (VC) at 1.4 A peak pulse current (IPPM), designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in automotive and industrial power electronics.
For engineers reviewing the P4SMA150AHE3_A/H datasheet, P4SMA150AHE3_A/H pinout, P4SMA150AHE3_A/H application, or P4SMA150AHE3_A/H equivalent, this AEC-Q101 qualified TVS offers verified 400 W peak pulse power (10/1000 µs), low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive ECUs and industrial motor drives requiring robust overvoltage immunity without layout redesign.
Technical Context
The P4SMA150AHE3_A/H operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and fast sub-nanosecond response to transient events. Its thermal resistance (RθJA = 120 °C/W) and 150 °C maximum junction temperature support operation under sustained ambient conditions up to +125 °C when mounted on 5.0 mm × 5.0 mm copper pads.
It delivers 400 W peak pulse power per 10/1000 µs waveform at TA = 25 °C, derating linearly above 25 °C per Figure 2, and sustains 40 A non-repetitive forward surge current (8.3 ms half-sine) - enabling protection of high-current power stages while maintaining low leakage (<1.0 µA at 128 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 128 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 143–158 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping) | 207 V at IPPM = 1.4 A - Peak voltage seen by protected circuit during worst-case 10/1000 µs surge; limits stress on downstream components. |
| PPPM | 400 W (10/1000 µs) - Surge energy handling capacity; supports IEC 61000-4-5 Level 4 compliance when properly laid out. |
| ID (Leakage) | <1.0 µA at 128 V - Negligible standby power loss and signal integrity impact in high-impedance sensor interfaces. |
| TJ max | +150 °C - Enables use in under-hood automotive environments and enclosed industrial enclosures without derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; suitable for ASIL-B supporting systems. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference in unidirectional TVS configuration. | Provides return path for surge current during reverse-transient clamping; must be routed with low-inductance trace to ground plane. |
| Cathode | Marked end (band); reverse-biased terminal during normal operation; connects to protected line (e.g., 12 V rail or sensor output). | Defines clamping polarity - surge current flows from cathode to anode when line voltage exceeds VBR; band orientation must match PCB silkscreen. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensors - eliminates requalification effort for Tier 1 suppliers. |
| 400 W peak pulse power | Handles IEC 61000-4-5 combination wave surges (e.g., 2 Ω source impedance, 1 kV) without degradation when mounted per recommended pad layout. |
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %), low leakage drift over temperature, and long-term reliability in humid or thermally cycled environments. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking; reduces manufacturing complexity and cost in high-volume SMT lines. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during fast transients - critical for protecting 150 V-rated MOSFETs and wide-bandgap devices. |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
|
Use Scenario: Protecting 12 V/24 V power inputs in electronic control units (ECUs) against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Unidirectional TVS placed between battery rail and DC-DC input stage to clamp transients before they reach regulator ICs. Use Value: Withstands 400 W surges and 40 A surge current, ensuring uninterrupted operation during cranking and load dump events per AEC-Q100 stress requirements. |
Use Scenario: Shielding gate driver signal lines (e.g., isolated SiC MOSFET drivers) from cross-talk and inductive kickback in variable-frequency drives. IC Role / Device Role: Low-capacitance TVS on PWM input traces to suppress nanosecond-scale ringing without distorting edge timing. Use Value: Clamps to 207 V within <1 ns, preserving signal integrity while preventing false triggering or gate oxide damage in high-speed power stages. |
| Telecom Power Interface | Consumer Sensor Hub Protection |
|
Use Scenario: Safeguarding PoE-powered Ethernet ports (IEEE 802.3af/at) against lightning-induced surges on data and power pairs. IC Role / Device Role: Primary-level TVS on secondary-side DC output rails feeding PHY and MAC ICs. Use Value: 128 V VWM aligns with 57 V PoE+ nominal; 207 V VC ensures protected ICs (e.g., Ethernet transceivers) remain within absolute maximum ratings during surge events. |
Use Scenario: Securing analog outputs of automotive cabin temperature/humidity sensors exposed to ESD and board-level transients. IC Role / Device Role: Point-of-entry TVS on 3.3 V or 5 V sensor supply lines upstream of LDOs and ADC front-ends. Use Value: Sub-µA leakage at 128 V prevents loading of high-impedance sensor bridges; AEC-Q101 qualification guarantees lifetime stability in automotive cabin environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/5A | Same VWM (128 V), identical SMA package, but lower PPPM (400 W same), higher VC (219 V at 1.3 A), no AEC-Q101 qualification. | Commercial-grade only; not approved for automotive production; requires separate reliability validation for automotive use. | Select when AEC-Q101 is not required and cost optimization is prioritized over automotive qualification. |
| 1.5SMC150AHE3_A | Higher power rating (1500 W), DO-214AB (SMC) package (larger footprint), same VWM/VC specs, AEC-Q101 qualified. | Requires PCB layout change due to larger SMC package; suited for higher-energy surge environments (e.g., 48 V battery systems). | Choose when system-level surge testing exceeds 400 W capability or when design allows larger footprint for enhanced margin. |
Compared with SMAJ150A-E3/5A, P4SMA150AHE3_A/H provides certified automotive reliability without sacrificing clamping performance; versus 1.5SMC150AHE3_A, it delivers equivalent protection in a 30 % smaller SMA footprint - ideal for space-constrained ECUs where layout reuse is critical.
Availability
P4SMA150AHE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive control, telecom power interface, and consumer sensor hub applications requiring stable component supply, AEC-Q101 compliance, and consistent surge immunity across production batches.
Supply support for P4SMA150AHE3_A/H 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, precision, and automotive-grade qualification.
The P4SMA Series targets high-volume surface-mount transient suppression in automotive, industrial, and telecom systems - engineered for automated placement, low-profile integration, and validated surge endurance under real-world electrical stress.
FAQ
What is the clamping voltage of the P4SMA150AHE3_A/H and how does it protect downstream components?
The P4SMA150AHE3_A/H has a maximum clamping voltage (VC) of 207 V at 1.4 A peak pulse current (10/1000 µs waveform). This value represents the highest voltage imposed on the protected circuit during a surge event. By limiting transient overvoltage to ≤207 V, the P4SMA150AHE3_A/H ensures that downstream components - such as 150 V-rated MOSFETs or automotive-grade regulators - remain within their absolute maximum voltage ratings, preventing catastrophic failure or parametric shift during inductive switching or lightning surges.
Is the P4SMA150AHE3_A/H suitable for automotive applications, and what qualifications does it hold?
Yes, the P4SMA150AHE3_A/H is explicitly AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and revision notes indicating _A revision availability for P4SMA6.8(C)A to P4SMA220(C)A. It has undergone stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 requirements - making it suitable for under-hood ECUs, body control modules, and ADAS sensor interfaces where automotive-grade reliability is mandatory.
What is the meaning of the "HE3_A/H" suffix in P4SMA150AHE3_A/H?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction; "_A" specifies the revision level (Revision A per document 88367); and "/H" indicates packaging in 7-inch diameter plastic tape and reel, with a base quantity of 1800 units. This full suffix confirms the part meets automotive reliability standards, environmental compliance, and surface-mount assembly readiness per J-STD-020 MSL Level 1.
How does the P4SMA150AHE3_A/H compare to bidirectional TVS diodes like P4SMA150CAHE3_A/H?
The P4SMA150AHE3_A/H is unidirectional and features a cathode band for polarity-sensitive placement, whereas P4SMA150CAHE3_A/H is bidirectional with no polarity marking and symmetric clamping in both directions. The unidirectional version offers lower leakage and tighter VBR tolerance, making it preferred for DC power rail protection (e.g., 12 V battery lines), while the bidirectional variant suits AC-coupled or floating signal lines where polarity reversal may occur.
What PCB layout guidelines should be followed to achieve the rated 400 W peak pulse power for the P4SMA150AHE3_A/H?
To achieve the full 400 W peak pulse power rating, the P4SMA150AHE3_A/H must be mounted on minimum recommended copper pad areas: 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal, per Vishay Figure 1 and note (1) in the datasheet. Traces to ground and protected line must be short and wide to minimize inductance; thermal vias under pads improve heat dissipation during repetitive surges. Deviation from this layout reduces effective PPPM and risks thermal runaway during sustained transient events.
P4SMA150AHE3_A/H 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 1.4A
- Power - Peak Pulse:
- 300W
- 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)
P4SMA150AHE3_A/H FAQ
1.How can I place an order for P4SMA150AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150AHE3_A/H 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 P4SMA150AHE3_A/H reliable?
The price and inventory of P4SMA150AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA150AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150AHE3_A/H?
P4SMA150AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150AHE3_A/H 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 P4SMA150AHE3_A/H?
For technical support, including P4SMA150AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150AHE3_A/H requirements.
6.How does Aetrix verify that P4SMA150AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA150AHE3_A/H 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 P4SMA150AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA150AHE3_A/H?
All P4SMA150AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150AHE3_A/H, 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 P4SMA150AHE3_A/H part is unused and in its original packaging.
Return procedure for P4SMA150AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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