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Vishay General Semiconductor - Diodes Division P4SMA100AHM3/H
- Part No.:
- P4SMA100AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100AHM3/H.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,314
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Product details
Overview
P4SMA100AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 100 V standoff voltage (VWM), 105 V minimum breakdown voltage (VBR), and 137 V maximum clamping voltage (VC) at 2.2 A peak pulse current (IPPM), designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial power electronics.
For engineers reviewing the P4SMA100AHM3/H datasheet, P4SMA100AHM3/H pinout, P4SMA100AHM3/H application, or P4SMA100AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, 400 W peak pulse power (10/1000 µs), 3.3 W steady-state power dissipation, low 0.01 % duty cycle rating, and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker test.
Technical Context
The P4SMA100AHM3/H operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and fast response to transient overvoltages. Its thermal resistance is 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), enabling reliable operation up to 150 °C junction temperature.
It delivers 400 W peak pulse power under 10/1000 µs waveform at TA = 25 °C, derated above 25 °C per Fig. 2, and supports repetitive surge events at 0.01 % duty cycle. The device meets UL 497B recognition (QVGQ2) and is qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 85.5 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (Breakdown) | 95.0–105 V at 1 mA - Confirmed avalanche initiation range for precise overvoltage threshold control |
| VC (Clamping) | 137 V at IPPM = 2.2 A - Peak voltage seen by protected circuit during worst-case 10/1000 µs transient |
| PPPM | 400 W - Surge energy absorption capacity under standardized 10/1000 µs waveform |
| ID (Leakage) | 1.0 µA max at VWM - Minimal standby current draw preserving system efficiency |
| TJ max | +150 °C - Enables deployment in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 | Qualified - Validated for automotive electronic modules requiring extended reliability and stress testing |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by band on body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when V > VBR |
| Anode (unbanded end) | Reference node | Typically tied to system ground or low-impedance return path for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Robust protection against high-energy transients without degradation across 1000+ cycles |
| Glass passivated chip junction | Stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain, body control, and ADAS subsystems per stress test requirements |
| UL 497B recognized (QVGQ2) | Meets safety agency requirements for telecom and industrial surge protection circuits |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units (ECUs) and junction boxes from load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between supply rail and chassis ground. Use Value: Limits transient voltage to ≤137 V, preventing damage to downstream PMICs and microcontrollers rated for 120 V absolute maximum. |
Use Scenario: Safeguarding gate drivers and current-sense amplifiers in variable-frequency drives exposed to IGBT switching noise. IC Role / Device Role / Timing Role: Fast-response surge suppressor on DC bus and signal inputs to isolate sensitive analog front-ends. Use Value: Sub-1 ns response time ensures clamping occurs before 100 ns propagation delay of typical gate drivers, preserving timing integrity. |
| Telecom Line Interface Protection | Consumer Sensor Signal Conditioning |
Use Scenario: Shielding RS-485 transceivers and PoE injectors from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair inputs, coordinated with secondary GDT or MOV stages. Use Value: 137 V clamping voltage aligns with 150 V common-mode immunity requirements per IEC 61000-4-5 Level 3. |
Use Scenario: Securing analog outputs of MEMS pressure sensors in HVAC controllers against ESD and relay bounce. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) unidirectional clamp on 3.3 V or 5 V sensor output lines. Use Value: 1.0 µA max reverse leakage avoids loading precision voltage references or op-amp feedback networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A | Same VWM (85.5 V), VC = 137 V, but rated for 400 W at 25 °C only; no AEC-Q101 or halogen-free certification | Commercial-grade use only; not approved for automotive production or regulated industrial equipment | Select P4SMA100AHM3/H when AEC-Q101 compliance, UL recognition, or halogen-free materials are mandatory |
| 1.5SMC100A | Higher package thermal mass (DO-214AB), RθJA = 40 °C/W vs. 120 °C/W; same electrical specs but larger footprint | Requires PCB redesign due to 7.11 mm × 6.22 mm outline vs. SMA's 4.50 mm × 2.79 mm; better for high-repetition surges | Choose P4SMA100AHM3/H for space-constrained SMT layouts where board area and weight are critical |
Compared with SMAJ100A and 1.5SMC100A, the P4SMA100AHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, UL 497B recognition, and DO-214AC miniaturization-making it the only option meeting full automotive Tier-1 BOM requirements without layout or compliance trade-offs.
Availability
P4SMA100AHM3/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor drives, telecom line interfaces, and consumer sensor modules requiring stable component supply, long-term lifecycle support, and certified reliability documentation.
Supply support for P4SMA100AHM3/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 high-reliability, high-efficiency, and automotive-qualified components.
The P4SMA series targets cost-sensitive yet mission-critical transient suppression in automotive, industrial, and telecom systems, delivering standardized TVS performance in compact, qualified, and easily manufacturable surface-mount packages.
FAQ
What is the clamping voltage of the P4SMA100AHM3/H under a 10/1000 µs surge?
The P4SMA100AHM3/H has a maximum clamping voltage (VC) of 137 V at 2.2 A peak pulse current (IPPM) under the standardized 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 transient events, ensuring compatibility with 120 V-rated downstream components.
Is the P4SMA100AHM3/H qualified for automotive applications?
Yes, the P4SMA100AHM3/H carries the HM3 suffix, indicating halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It has passed stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing (uHAST), making it suitable for automotive power distribution, body electronics, and ADAS modules.
What does the "H" in P4SMA100AHM3/H signify?
The "H" in P4SMA100AHM3/H denotes the packaging configuration: 7-inch diameter plastic tape and reel, with 1800 units per reel. This format supports high-speed automated placement and is compatible with standard SMT pick-and-place equipment used in automotive and industrial manufacturing lines.
How does the thermal resistance of the P4SMA100AHM3/H affect PCB layout?
The P4SMA100AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W, meaning copper pad area directly impacts power handling. Mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) pads per terminal is required to sustain 400 W peak pulses; smaller pads reduce safe surge capability and risk thermal runaway during repeated events.
Can the P4SMA100AHM3/H replace bidirectional TVS diodes in circuit designs?
No - the P4SMA100AHM3/H is unidirectional and features a cathode band; it must be oriented with cathode toward the protected line and anode to ground. Bidirectional protection requires a CA-suffixed part like P4SMA100CA. Using P4SMA100AHM3/H in place of a bidirectional device leaves AC-coupled or floating lines unprotected during negative transients.
P4SMA100AHM3/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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- 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)
P4SMA100AHM3/H FAQ
1.How can I place an order for P4SMA100AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100AHM3/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 P4SMA100AHM3/H reliable?
The price and inventory of P4SMA100AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA100AHM3/H is usually 5 days.
3.What payment methods are accepted for P4SMA100AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100AHM3/H?
P4SMA100AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100AHM3/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 P4SMA100AHM3/H?
For technical support, including P4SMA100AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100AHM3/H requirements.
6.How does Aetrix verify that P4SMA100AHM3/H is sourced from the original manufacturer or authorized distributors?
All P4SMA100AHM3/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 P4SMA100AHM3/H meets industry standards.
7.What is the process for return or replacement of P4SMA100AHM3/H?
All P4SMA100AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100AHM3/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 P4SMA100AHM3/H part is unused and in its original packaging.
Return procedure for P4SMA100AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA100AHM3/H Tags
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