My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA150AHM3/H
- Part No.:
- P4SMA150AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150AHM3/H.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,879
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA150AHM3/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, 207 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform). It provides clamping protection for power rails and signal lines in automotive and industrial electronics.
For engineers reviewing the P4SMA150AHM3/H datasheet, P4SMA150AHM3/H pinout, P4SMA150AHM3/H application, or P4SMA150AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), 150 °C max junction temperature, and low clamping voltage of 207 V at rated surge current - critical for robust overvoltage protection in safety-critical systems.
Technical Context
The P4SMA150AHM3/H operates as a unidirectional avalanche diode with glass-passivated junction, delivering fast response to transients (<1 ns) and low incremental surge resistance. Its clamping behavior is defined by a 10/1000 µs double-exponential waveform, with derated power above 25 °C per Fig. 2 and thermal resistance RθJA = 120 °C/W.
Designed for surface-mount assembly on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 128 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 143–158 V at 1 mA - Verified avalanche onset range; ensures predictable turn-on during transient events |
| VC (Clamping Voltage) | 207 V at IPPM = 207 A - Peak voltage seen by protected circuit under full-rated 400 W surge; determines stress on downstream components |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - Surge energy handling capacity; supports repetitive transients up to 0.01% duty cycle |
| IFSM (Forward Surge Current) | 40 A (8.3 ms half-sine) - Withstands short-duration inrush or fault currents without degradation |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood automotive and high-ambient industrial environments |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with 5.0 mm × 5.0 mm pad layout; compatible with automated pick-and-place |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with matte tin-plated leads, UL 94 V-0 flammability rating, and polarity indicated by cathode band on unidirectional devices like P4SMA150AHM3/H.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to lower-potential side of protected line; forms reference for reverse-biased clamping path |
| Cathode | Current exit point in forward bias; clamping node in reverse bias | Connected to higher-potential rail (e.g., VCC); conducts surge current to ground when VIN exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; supports under-hood and ADAS applications |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements for global OEM supply chains without compromising thermal or electrical performance |
| 400 W peak pulse power (10/1000 µs) | Handles high-energy transients from inductive switching or lightning-induced surges in industrial motor drives and power supplies |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on protected ICs and MOSFETs during surge events, improving system-level robustness |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; reduces manufacturing complexity and cost in high-volume production |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges exceeding 150 V. Use Value: Clamps to 207 V within nanoseconds, limiting stress on downstream DC-DC converters and microcontrollers rated for ≤220 V absolute maximum. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules exposed to EMI and relay switching noise. IC Role / Device Role / Timing Role: TVS mounted at connector interface to shunt induced transients before reaching precision ADC front-end. Use Value: Low leakage (<1 µA at 128 V) prevents signal offset drift; fast response preserves integrity of sub-µs edge-sensitive signals. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Secondary-side overvoltage suppression on PoE-powered Ethernet switch line cards subjected to induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Unidirectional TVS across DC output rails to absorb residual transients escaping primary-side protection. Use Value: 400 W rating handles multiple repetitive surges without degradation; AEC-Q101 qualification ensures long-term field reliability. |
Use Scenario: Input-stage transient suppression in universal-input AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: TVS placed after bridge rectifier to clamp rectified line surges before bulk capacitor and controller IC. Use Value: 150 V VWM allows safe operation with 170 V peak rectified 120 VAC; SMA package enables compact PCB layout near AC inlet. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Higher 600 W PPPM, larger SMB (DO-214AA) package, same VWM/VBR range | Better suited for higher-energy surges; requires larger board area and different pad layout | Select when surge energy exceeds 400 W but space permits SMB footprint |
| 1.5SMC150A | Same 400 W rating, larger SMC (DO-214AB) package, higher thermal resistance (RθJA = 150 °C/W) | Lower power density; less suitable for thermally constrained automotive modules | Choose only if existing SMC footprint reuse is mandatory and ambient temperature remains <85 °C |
Compared with SMBJ150A and 1.5SMC150A, the P4SMA150AHM3/H delivers identical clamping performance in a smaller SMA package with superior thermal efficiency (RθJA = 120 °C/W), making it optimal for space- and temperature-constrained automotive and industrial designs requiring AEC-Q101 validation and halogen-free compliance.
Availability
P4SMA150AHM3/H is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, telecom line cards, and consumer power adapter designs requiring stable component supply, AEC-Q101 qualification, and halogen-free compliance.
Supply support for P4SMA150AHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series is designed for robust transient voltage suppression in automotive, industrial, and telecom systems where compact size, high surge capability, and AEC-Q101 qualification are essential - directly addressing design needs for ISO 7637-2 and IEC 61000-4-5 compliance.
FAQ
What is the clamping voltage of P4SMA150AHM3/H at its rated peak pulse current?
The P4SMA150AHM3/H has a maximum clamping voltage (VC) of 207 V when subjected to its rated peak pulse current (IPPM) of 207 A using a 10/1000 µs waveform. This value is measured under standardized test conditions with 0.2" × 0.2" copper pads and represents the upper voltage limit imposed on the protected circuit during a full-rated surge event. The P4SMA150AHM3/H maintains this clamping performance consistently across its qualified operating temperature range.
Is P4SMA150AHM3/H qualified for automotive applications?
Yes, the P4SMA150AHM3/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's P4SMA series datasheet (Rev. 09-Jan-2024, Doc. #88367). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, validating its suitability for under-hood and chassis-mounted automotive electronics. The P4SMA150AHM3/H meets automotive reliability requirements without derating in ambient temperatures up to 125 °C.
What does the "HM3" suffix indicate in P4SMA150AHM3/H?
The "HM3" suffix in P4SMA150AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade E3/M3 versions and confirms compliance with automotive environmental standards. The "H" indicates 7-inch tape-and-reel packaging (1800 units per reel), while "M3" specifies the halogen-free material set. This makes the P4SMA150AHM3/H appropriate for global OEM supply chains requiring both ecological compliance and automotive-grade reliability.
How does the thermal performance of P4SMA150AHM3/H compare to larger-package TVS diodes?
The P4SMA150AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" copper pads - lower than SMC-packaged equivalents (e.g., 1.5SMC150A at 150 °C/W) due to optimized leadframe geometry and solder joint thermal paths. This enables higher sustained power dissipation in compact layouts. The P4SMA150AHM3/H leverages its SMA footprint to achieve better thermal efficiency than larger packages with equivalent ratings, supporting denser PCB designs without thermal compromise.
Can P4SMA150AHM3/H be used in bidirectional configurations?
No, the P4SMA150AHM3/H is a unidirectional TVS diode, as indicated by its "A" suffix and cathode-band marking. Bidirectional variants use the "CA" suffix (e.g., P4SMA150CA). Using the P4SMA150AHM3/H in reverse-biased AC applications would result in forward conduction and failure. For bidirectional protection at 150 V standoff, select P4SMA150CAHE3/H or equivalent - the P4SMA150AHM3/H must be applied only in DC or single-polarity circuits with correct anode/cathode orientation.
P4SMA150AHM3/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:
- Discontinued at Digi-Key
- 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:
- 400W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA150AHM3/H FAQ
1.How can I place an order for P4SMA150AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150AHM3/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 P4SMA150AHM3/H reliable?
The price and inventory of P4SMA150AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150AHM3/H is usually 5 days.
3.What payment methods are accepted for P4SMA150AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150AHM3/H?
P4SMA150AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150AHM3/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 P4SMA150AHM3/H?
For technical support, including P4SMA150AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150AHM3/H requirements.
6.How does Aetrix verify that P4SMA150AHM3/H is sourced from the original manufacturer or authorized distributors?
All P4SMA150AHM3/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 P4SMA150AHM3/H meets industry standards.
7.What is the process for return or replacement of P4SMA150AHM3/H?
All P4SMA150AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150AHM3/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 P4SMA150AHM3/H part is unused and in its original packaging.
Return procedure for P4SMA150AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA150AHM3/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
