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Vishay General Semiconductor - Diodes Division P4SMA13AHM3/H
- Part No.:
- P4SMA13AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA13AHM3/H.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,156
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Product details
Overview
P4SMA13AHM3/H 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 13 V breakdown voltage (VBR = 12.4–13.7 V at 1 mA), 11.1 V maximum standoff voltage (VWM), 18.2 V clamping voltage (VC) at 22 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the P4SMA13AHM3/H datasheet, P4SMA13AHM3/H pinout, P4SMA13AHM3/H application, or P4SMA13AHM3/H equivalent, this device is selected for robust ESD and surge protection where low clamping voltage, AEC-Q101 qualification, halogen-free RoHS compliance, and stable thermal performance up to 150 °C junction temperature are required.
Technical Context
The P4SMA13AHM3/H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 µA at VWM), while the SMA package supports automated placement and meets MSL Level 1 reflow (260 °C peak).
It delivers 400 W peak pulse power (derated to 300 W above 91 V) under 10/1000 µs transients, with 120 °C/W junction-to-ambient thermal resistance and 30 °C/W junction-to-lead resistance - enabling reliable operation on standard 0.2" × 0.2" copper pads without heatsinking in intermittent surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V / 13.7 V at 1 mA - defines precise clamping onset; tight tolerance enables predictable overvoltage cutoff. |
| VWM | 11.1 V - maximum continuous reverse operating voltage before leakage rises; sets safe DC bias margin. |
| VC @ IPPM | 18.2 V at 22 A - clamped voltage during 10/1000 µs surge; limits downstream stress on protected ICs. |
| PPPM | 400 W - peak transient energy absorption capability; sufficient for IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges. |
| IFSM | 40 A - 8.3 ms half-sine surge current rating; supports inrush and load-dump immunity in automotive 12 V systems. |
| TJ max | 150 °C - maximum junction temperature; allows operation in under-hood or industrial enclosures without derating. |
| Package | SMA (DO-214AC) - industry-standard SMD outline; compatible with JEDEC MS-013, supports 1.5 mm pad spacing. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, single-ended unidirectional configuration. Cathode indicated by band; anode is unmarked end. Dimensions: 4.50 mm × 2.79 mm × 2.29 mm (L × W × H); weight 0.064 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient conduction path (reverse-biased) | Connects to protected line; conducts surge current to ground when VREV > VBR. |
| Anode (unbanded end) | Reference/return node | Typically tied to system ground or low-impedance return; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets IEC 61249-2-21 and JESD201 Class 2 whisker resistance; suitable for green manufacturing. |
| 400 W peak pulse power (10/1000 µs) | Withstands repeated lightning-induced surges per IEC 61000-4-5 without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.41) | Minimizes voltage overshoot during fast transients - critical for 3.3 V/5 V logic and analog front-ends. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and LDO input to clamp transients before regulation. Use Value: Limits voltage to ≤18.2 V during 100 V/50 ms load dump, preventing LDO latch-up and MCU brownout. |
Use Scenario: Shielding 4–20 mA current-loop sensor outputs from ESD and field wiring surges in factory automation. IC Role / Device Role / Timing Role: TVS mounted across output terminals to shunt fast transients before reaching analog-to-digital converter inputs. Use Value: Maintains signal integrity below 18.2 V clamping level, avoiding ADC saturation and false fault detection. |
| Consumer Power Adapter Input Protection | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier outputs from switching noise and external surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor to absorb repetitive 400 W transients from mains coupling. Use Value: Extends capacitor lifetime by limiting peak reverse voltage to 18.2 V, reducing dielectric stress. |
Use Scenario: Front-end protection of Ethernet PHY or RS-485 transceivers connected to outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC rail and data lines to suppress induced lightning surges per IEC 61000-4-5. Use Value: Clamps 1 kV surges to <18.2 V within nanoseconds, preserving transceiver functionality and data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A | Same VBR range (12.4–13.7 V), but rated for 400 W with 8.3 ms surge; no AEC-Q101 or halogen-free certification. | Commercial-grade only; not approved for automotive under-hood use or green manufacturing programs. | Select SMAJ13A only for cost-sensitive non-automotive designs where AEC-Q101 and HM3 compliance are unnecessary. |
| 1.5SMC13A | Higher package thermal mass (SMC/DO-214AB); same electrical specs but 125 °C/W RθJA; RoHS-compliant but not halogen-free. | Better power handling in sustained surges due to larger case; less suitable for high-density PCB layouts. | Choose 1.5SMC13A when board space permits larger footprint and thermal design requires lower junction rise per watt. |
Compared with SMAJ13A and 1.5SMC13A, the P4SMA13AHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, and SMA footprint - making it the only option for automotive Tier-1 suppliers requiring full compliance traceability and compact layout in harsh environments.
Availability
P4SMA13AHM3/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply, full compliance documentation, and long-term lifecycle support.
Supply support for P4SMA13AHM3/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 application-specific validation.
The P4SMA Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for consistent clamping performance, low leakage, and robust surge endurance under real-world thermal and mechanical stress.
FAQ
What is the breakdown voltage tolerance of the P4SMA13AHM3/H?
The P4SMA13AHM3/H has a breakdown voltage (VBR) specified at 12.4 V minimum and 13.7 V maximum when tested at 1 mA, yielding a ±5% tolerance around the nominal 13 V rating. This tight tolerance ensures predictable clamping behavior across production lots and temperature ranges, critical for protecting sensitive 12 V system components without premature conduction.
Is the P4SMA13AHM3/H suitable for automotive applications?
Yes, the P4SMA13AHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction - explicitly validated for automotive use cases including engine control modules, body electronics, and ADAS sensor power rails. Its 150 °C maximum junction temperature and MSL Level 1 reflow rating further support under-hood deployment.
What does the "HM3" suffix mean in P4SMA13AHM3/H?
The "HM3" suffix in P4SMA13AHM3/H denotes halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance and UL 94 V-0 flammability standards. The "H" indicates 7-inch tape-and-reel packaging (1800 units/reel), while "M3" confirms material compliance - distinguishing it from commercial-grade E3 variants and AEC-Q101 HE3 versions.
How does the clamping voltage of P4SMA13AHM3/H compare to its breakdown voltage?
The P4SMA13AHM3/H clamps at 18.2 V when subjected to its rated 22 A peak pulse current (10/1000 µs), resulting in a clamping ratio (VC/VBR) of approximately 1.41. This low ratio reflects efficient avalanche conduction and minimal voltage overshoot - essential for safeguarding 12 V logic supplies and analog circuits without exceeding safe operating limits.
Can P4SMA13AHM3/H be used in bidirectional configurations?
No, the P4SMA13AHM3/H is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires a CA-suffixed part such as P4SMA13CA. Using P4SMA13AHM3/H in reverse-biased AC applications would result in forward conduction and failure; always verify polarity alignment in circuit layout.
P4SMA13AHM3/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):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 22A
- 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)
P4SMA13AHM3/H FAQ
1.How can I place an order for P4SMA13AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA13AHM3/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 P4SMA13AHM3/H reliable?
The price and inventory of P4SMA13AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA13AHM3/H is usually 5 days.
3.What payment methods are accepted for P4SMA13AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA13AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA13AHM3/H?
P4SMA13AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA13AHM3/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 P4SMA13AHM3/H?
For technical support, including P4SMA13AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA13AHM3/H requirements.
6.How does Aetrix verify that P4SMA13AHM3/H is sourced from the original manufacturer or authorized distributors?
All P4SMA13AHM3/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 P4SMA13AHM3/H meets industry standards.
7.What is the process for return or replacement of P4SMA13AHM3/H?
All P4SMA13AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA13AHM3/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 P4SMA13AHM3/H part is unused and in its original packaging.
Return procedure for P4SMA13AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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