My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA220AHM3_A/I
- Part No.:
- P4SMA220AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA220AHM3_A/I.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,884
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA220AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 220 V breakdown voltage (VBR = 209–231 V at IT = 1.0 mA), 185 V stand-off voltage (VWM), and 328 A peak pulse current (IPPM) under 10/1000 µs waveform. It delivers 400 W peak pulse power, features AEC-Q101 qualification, and is used to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial power electronics.
For engineers reviewing the P4SMA220AHM3_A/I datasheet, P4SMA220AHM3_A/I pinout, P4SMA220AHM3_A/I application, or P4SMA220AHM3_A/I equivalent, key selection criteria include clamping voltage (VC = 328 V at IPPM), low incremental surge resistance, MSL Level 1 moisture sensitivity, and halogen-free RoHS-compliant construction with matte tin-plated leads.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown above its specified VBR, clamping transient voltages to ≤328 V while conducting up to 328 A. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), critical for protecting sensitive downstream circuitry.
Thermally, it exhibits RθJA = 120 °C/W and RθJL = 30 °C/W, with maximum junction temperature of +150 °C. The device is rated for repetitive 10/1000 µs pulses at 0.01% duty cycle (400 W) and non-repetitive 8.3 ms half-sine surges up to 40 A (IFSM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at IT = 1.0 mA - defines precise avalanche onset threshold for reliable overvoltage triggering |
| VWM | 185 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 328 V at 328 A (10/1000 µs) - clamping voltage limiting stress on protected ICs or MOSFETs |
| PPPM | 400 W - peak transient energy absorption capability under standard lightning/surge test waveform |
| IFSM | 40 A - surge current rating for 8.3 ms half-sine wave, supporting robustness against inrush or fault events |
| TJ max | +150 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to ground or low-side reference in unidirectional TVS configurations |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to protected line (e.g., power rail or signal trace) - conducts during reverse transient |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for global industrial and automotive supply chains |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime |
| MSL Level 1 (260 °C peak) | Enables compatibility with standard lead-free reflow processes without pre-baking |
| 400 W peak pulse power | Provides margin against IEC 61000-4-5 Level 4 (4 kV) surge events in industrial power supplies |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp spikes >185 V. Use Value: Limits transient voltage to ≤328 V, preventing damage to microcontrollers and CAN transceivers rated for 36 V absolute max. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in PLC modules from ESD and cable discharge. IC Role / Device Role / Timing Role: Low-capacitance TVS on 4–20 mA or 0–10 V output lines to suppress sub-100 ns ESD events. Use Value: Sub-1 ns response ensures clamping occurs before sensor amplifier input stages are overstressed. |
| Telecom DC Power Input Protection | Motor Drive Gate Driver Protection |
Use Scenario: Safeguarding PoE-powered equipment front-end rectifiers and DC-DC converters against induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V input rail upstream of filtering and regulation stages. Use Value: 400 W rating handles repeated 10/1000 µs surges per ITU-T K.21 Basic Level requirements. |
Use Scenario: Preventing gate oxide failure in IGBT/MOSFET drivers caused by Miller-induced voltage spikes. IC Role / Device Role / Timing Role: TVS connected between gate and source to clamp dV/dt-induced overshoot during switching. Use Value: Low incremental resistance minimizes clamping voltage rise under high di/dt, preserving driver integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220AHE3/A | Same VBR range (209–231 V), identical SMA package, but rated for 400 W only at TA ≤ 25 °C; no AEC-Q101 qualification | Lacks automotive qualification; suitable for commercial/industrial use only | Select when AEC-Q101 is not required and cost optimization is prioritized |
| 1.5SMC220A | Higher package thermal resistance (RθJA ≈ 150 °C/W), same VBR/VC, but SMC (DO-214AB) package - 2.5 mm wider than SMA | Requires PCB layout change due to larger footprint; lower power derating above 25 °C | Choose only if existing design uses SMC footprint and thermal margin permits |
Compared with SMAJ220AHE3/A and 1.5SMC220A, P4SMA220AHM3_A/I provides verified AEC-Q101 qualification, halogen-free compliance, and superior thermal performance in the compact SMA outline - making it the preferred choice for new automotive and high-reliability industrial designs where footprint, qualification, and long-term stability are critical.
Availability
P4SMA220AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for P4SMA220AHM3_A/I 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, efficiency, and application-specific performance.
The P4SMA Series was engineered for high-energy transient suppression in space-constrained, high-reliability applications - particularly automotive power systems and industrial control interfaces where AEC-Q101 validation and consistent clamping behavior are mandatory.
FAQ
What is the clamping voltage of P4SMA220AHM3_A/I at its rated peak pulse current?
The clamping voltage (VC) of P4SMA220AHM3_A/I is 328 V when subjected to its maximum rated peak pulse current of 328 A under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88367 and represents the upper voltage limit imposed on protected circuitry during surge events - a critical parameter for ensuring downstream components remain within their absolute maximum ratings. P4SMA220AHM3_A/I maintains this clamping performance across its qualified operating temperature range.
Is P4SMA220AHM3_A/I suitable for automotive applications?
Yes, P4SMA220AHM3_A/I is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix "HM3_A/I", indicating halogen-free, RoHS-compliant, and automotive-grade reliability. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per AEC-Q101 Rev G. P4SMA220AHM3_A/I is deployed in engine control modules, body electronics, and ADAS sensor interfaces where transient immunity and long-term stability are essential.
What does the "HM3_A/I" suffix mean in P4SMA220AHM3_A/I?
The "HM3_A/I" suffix in P4SMA220AHM3_A/I decodes as follows: "H" denotes 13-inch tape-and-reel packaging (7500 pcs/reel); "M3" indicates halogen-free and RoHS-compliant construction; "A" specifies AEC-Q101 qualification for the 6.8 V to 220 V voltage range; and "I" confirms compliance with J-STD-020 MSL Level 1 (peak reflow temperature 260 °C). This full suffix ensures P4SMA220AHM3_A/I meets automotive manufacturing and environmental requirements out-of-box.
How does P4SMA220AHM3_A/I compare to bidirectional TVS diodes like P4SMA220CA?
P4SMA220AHM3_A/I is unidirectional and intended for DC rail protection where polarity is fixed (e.g., 12 V battery lines), offering tighter VBR tolerance and lower leakage. In contrast, P4SMA220CA is bidirectional, suited for AC or floating signal lines (e.g., RS-485), with symmetric clamping in both directions but higher VWM (185 V vs. 185 V) and same VC. P4SMA220AHM3_A/I cannot replace P4SMA220CA in AC-coupled circuits without redesign, as reverse conduction would cause unintended conduction paths.
What is the maximum junction temperature rating for P4SMA220AHM3_A/I?
The maximum junction temperature (TJ) for P4SMA220AHM3_A/I is +150 °C, as specified in the Absolute Maximum Ratings table of Vishay document 88367. This rating supports operation in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. Derating curves (Figure 2) show that peak pulse power must be reduced linearly above 25 °C ambient - for example, at 100 °C ambient, P4SMA220AHM3_A/I is limited to ~240 W to maintain safe junction temperature. P4SMA220AHM3_A/I's RθJA = 120 °C/W reflects its thermal performance on standard 0.2" × 0.2" copper pads.
P4SMA220AHM3_A/I 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):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 910mA
- 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)
P4SMA220AHM3_A/I FAQ
1.How can I place an order for P4SMA220AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA220AHM3_A/I 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 P4SMA220AHM3_A/I reliable?
The price and inventory of P4SMA220AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA220AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA220AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA220AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA220AHM3_A/I?
P4SMA220AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA220AHM3_A/I 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 P4SMA220AHM3_A/I?
For technical support, including P4SMA220AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA220AHM3_A/I requirements.
6.How does Aetrix verify that P4SMA220AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA220AHM3_A/I 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 P4SMA220AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA220AHM3_A/I?
All P4SMA220AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA220AHM3_A/I, 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 P4SMA220AHM3_A/I part is unused and in its original packaging.
Return procedure for P4SMA220AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA220AHM3_A/I 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 …
