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Vishay General Semiconductor - Diodes Division P4SMA170CA-M3/61
- Part No.:
- P4SMA170CA-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA170CA-M3/61.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,034
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Product details
Overview
P4SMA170CA-M3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMA (DO-214AC) package, designed for clamping voltage transients on signal or power lines. It features 170 V standoff voltage (VWM), 189 V minimum breakdown voltage (VBR), 234 V maximum clamping voltage (VC) at 1.3 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, sensor interfaces, and telecom line drivers against ESD and inductive switching surges.
For engineers reviewing the P4SMA170CA-M3/61 datasheet, P4SMA170CA-M3/61 pinout, P4SMA170CA-M3/61 application, or P4SMA170CA-M3/61 equivalent, key selection criteria include bidirectional clamping capability, halogen-free RoHS compliance (M3 suffix), AEC-Q101 qualification readiness, thermal resistance (RθJA = 120 °C/W), and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity sensitivity. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1 µA at VWM), while the low incremental surge resistance supports rapid energy diversion during transient events.
The device is rated for repetitive 400 W peak pulse power (10/1000 µs) up to TA = 25 °C, derating linearly above that temperature per Fig. 2, and maintains operation across -65 °C to +150 °C junction range. Mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal is required to achieve specified PPPM and thermal performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 171 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 162–179 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 234 V at IPPM = 1.3 A - Peak voltage seen by protected circuit during full-rated transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - Energy-handling capacity under standardized surge; validates robustness against IEC 61000-4-5 Level 3/4 threats. |
| ID (Reverse Leakage) | <1 µA at 171 V - Minimal DC loading on signal lines; preserves integrity in high-impedance sensor or communication circuits. |
| Package | SMA (DO-214AC) - Surface-mount outline with 2.54 mm lead pitch; compatible with JEDEC-standard reflow profiles and J-STD-020 MSL level 1. |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix); meets UL 94 V-0 flammability; AEC-Q101 qualified variant available (HM3 suffix). |
Pinout & Package
SMA (DO-214AC) package: molded plastic body with two coplanar matte tin-plated leads; no polarity marking for bidirectional types; terminals solderable per J-STD-002 and JESD 22-B102; MSL level 1, peak reflow temperature 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Either terminal accepts surge current; symmetrical conduction enables AC-line or differential pair protection without orientation constraints. |
| Cathode | Transient current exit (bidirectional) | Functionally identical to Anode in CA devices; no cathode band marking distinguishes bidirectional variants from unidirectional counterparts. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity testing up to 1 kV open-circuit / 0.5 kV source impedance in industrial environments. |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage overshoot during fast transients, reducing risk of latch-up or gate oxide damage in protected ICs. |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage under thermal cycling and humidity exposure per JESD22-A110. |
| MSL level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without moisture-related popcorning or delamination risks. |
| Halogen-free & RoHS-compliant (M3) | Fulfills EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green electronics manufacturing. |
Applications
| Industrial Sensor Interface Protection | Telecom Line Driver Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in factory automation PLC modules exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair (e.g., RS-485 bus or 4–20 mA loop) to clamp common-mode transients before they reach precision ADC or isolator inputs. Use Value: Clamps 1.3 A surges to ≤234 V, preventing saturation or damage to op-amps and current-sense amplifiers operating at ±15 V rails. |
Use Scenario: Safeguarding Ethernet PHY or DSL line driver ICs against lightning-induced surges on outdoor-facing copper pairs in access network equipment. IC Role / Device Role / Timing Role: Primary-level TVS mounted at connector entry point, shunting induced common-mode energy before it couples into transformer-coupled data paths. Use Value: Withstands 400 W pulses without degradation, maintaining signal integrity through multiple surge events per IEC 61000-4-5 Ed. 3. |
| Automotive Body Control Module (BCM) | Consumer Appliance Motor Control Board |
Use Scenario: Shielding LIN bus transceivers and window lift motor drivers from load dump and jump-start transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional clamping element across LIN signal line and ground, activated within <1 ns to suppress 100 V/µs edge rates. Use Value: AEC-Q101-qualified variants (HM3) ensure reliability over 15-year automotive lifecycle; low leakage avoids false wake-up in sleep-mode LIN nodes. |
Use Scenario: Suppressing commutation spikes from universal motor brushes in washing machine control boards where microcontroller GPIOs interface with triac drivers. IC Role / Device Role / Timing Role: Secondary-level TVS on low-voltage control side, limiting coupled transients from mains-side snubbers and relay contacts. Use Value: 234 V clamping prevents MCU reset or flash corruption during repeated 400 W surges typical of appliance end-of-life stress testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170CA | Same VWM/VBR/VC ratings but in larger SMB (DO-214AA) package; RθJA = 80 °C/W vs. 120 °C/W for P4SMA170CA-M3/61. | Better thermal dissipation allows higher duty-cycle surge handling; requires 30% more PCB area. | Select SMBJ170CA when board layout permits larger footprint and sustained surge repetition is expected. |
| 1.5KE170CA | Through-hole TO-218 package; 1500 W PPPM rating but slower response (>5 ns vs. <1 ns) and higher junction capacitance (~100 pF vs. ~30 pF). | Higher energy rating suits primary AC input protection; unsuitable for high-speed data lines due to capacitance. | Choose 1.5KE170CA only for mains-side or low-frequency power rail clamping where layout space and speed are secondary. |
Compared with SMBJ170CA and 1.5KE170CA, P4SMA170CA-M3/61 delivers optimal balance of compact SMT footprint, sub-nanosecond response, and verified 400 W surge capability - making it preferred for space-constrained, high-speed signal line protection where thermal management relies on PCB copper area rather than package size.
Availability
P4SMA170CA-M3/61 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line drivers, automotive body control modules, and consumer appliance motor control boards requiring stable component supply across extended production lifecycles.
Supply support for P4SMA170CA-M3/61 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA series was developed for high-reliability transient suppression in space-constrained SMT designs, targeting automotive, industrial, and telecom systems where consistent clamping performance and halogen-free compliance are mandatory.
FAQ
What is the clamping voltage of P4SMA170CA-M3/61 at its rated peak pulse current?
The P4SMA170CA-M3/61 has a maximum clamping voltage (VC) of 234 V when subjected to its rated peak pulse current (IPPM) of 1.3 A using the 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88367 and defines the upper voltage limit imposed on protected circuitry during a full-rated transient event. The P4SMA170CA-M3/61 maintains this clamping performance across its operational temperature range and after repeated surge exposures.
Is P4SMA170CA-M3/61 suitable for automotive applications?
Yes - while the base P4SMA170CA-M3/61 is commercial-grade, Vishay offers AEC-Q101-qualified versions under the HM3 suffix (e.g., P4SMA170CAHM3_A/H). These variants undergo stress testing per AEC-Q101 standards including HTGB, TCT, and ESD, and are intended for automotive body electronics, infotainment, and ADAS subsystems. The P4SMA170CA-M3/61 itself shares identical electrical specs and package but lacks formal automotive qualification documentation.
How does the M3 suffix affect the environmental compliance of P4SMA170CA-M3/61?
The M3 suffix on P4SMA170CA-M3/61 indicates halogen-free, RoHS-compliant construction per EU Directive 2011/65/EU and IPC-1752A. It confirms absence of brominated flame retardants (BFRs), chlorinated flame retardants (CFRs), and antimony trioxide, with total halogen content <900 ppm chlorine + bromine. This makes P4SMA170CA-M3/61 compliant for green manufacturing in consumer, industrial, and medical electronics where halogen restrictions apply.
What is the thermal resistance of P4SMA170CA-M3/61, and how does it impact PCB layout?
The P4SMA170CA-M3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes no additional heatsinking; exceeding this thermal resistance risks junction temperature rise beyond 150 °C during repetitive surges. To maintain reliability, PCB layout must allocate adequate copper area and avoid narrow traces connecting the P4SMA170CA-M3/61 anode/cathode to ground or return planes.
Can P4SMA170CA-M3/61 be used in bidirectional AC signal paths?
Yes - the "CA" suffix explicitly denotes bidirectional functionality, meaning the P4SMA170CA-M3/61 conducts identically in both directions and has no polarity marking. It is engineered for clamping transients on AC-coupled lines such as RS-485, CAN FD, or audio interfaces where voltage polarity reverses. Unlike unidirectional TVS diodes, the P4SMA170CA-M3/61 provides symmetrical protection without requiring external series blocking diodes or careful orientation during placement.
P4SMA170CA-M3/61 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 145V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 234V
- Current - Peak Pulse (10/1000µs):
- 1.3A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA170CA-M3/61 FAQ
1.How can I place an order for P4SMA170CA-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA170CA-M3/61 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 P4SMA170CA-M3/61 reliable?
The price and inventory of P4SMA170CA-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA170CA-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA170CA-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA170CA-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA170CA-M3/61?
P4SMA170CA-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA170CA-M3/61 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 P4SMA170CA-M3/61?
For technical support, including P4SMA170CA-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA170CA-M3/61 requirements.
6.How does Aetrix verify that P4SMA170CA-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA170CA-M3/61 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 P4SMA170CA-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA170CA-M3/61?
All P4SMA170CA-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA170CA-M3/61, 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 P4SMA170CA-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA170CA-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA170CA-M3/61 Tags
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