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Vishay General Semiconductor - Diodes Division P6SMB220CAHM3_A/H
- Part No.:
- P6SMB220CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB220CAHM3_A/H.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,065
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Product details
Overview
P6SMB220CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 220 V standoff voltage (VWM), 242–268 V breakdown voltage (VBR) at 1 mA, 328 V maximum clamping voltage (VC) at 1.8 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line cards.
For engineers reviewing the P6SMB220CAHM3_A/H datasheet, P6SMB220CAHM3_A/H pinout, P6SMB220CAHM3_A/H application, or P6SMB220CAHM3_A/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal performance, and compliance with IEC 61000-4-2/4-5 surge immunity requirements.
Technical Context
This device operates as a voltage-clamped shunt protector: during transients exceeding VWM (220 V), it avalanches symmetrically in both directions to limit voltage across protected circuitry. Its glass-passivated junction ensures stable breakdown and low leakage (<1 μA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
The P6SMB220CAHM3_A/H delivers consistent clamping response under repetitive 10/1000 μs surges at 0.01% duty cycle, with thermal resistance RθJA = 100 °C/W enabling operation up to +150 °C junction temperature - critical for under-hood automotive and high-ambient industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 220 V - maximum continuous reverse voltage before conduction begins in either direction |
| VBR (Breakdown) | 242–268 V at 1 mA - guaranteed avalanche initiation range defining protection threshold precision |
| VC (Clamping) | 328 V at IPPM = 1.8 A - peak voltage seen by protected circuit during worst-case 10/1000 μs transient |
| PPPM | 600 W - surge energy handling capacity per IEC 61000-4-5 waveform, enabling single-event protection of 24/48 V systems |
| ID (Leakage) | <1 μA at 220 V - negligible standby power loss and minimal impact on high-impedance sensor bias networks |
| Package | SMB (DO-214AA) - standardized 2-pin SMD outline with 5.0 mm × 5.0 mm copper pad thermal path per terminal |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC specification |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminals function identically in forward and reverse conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either polarity) | One of two identical terminals; connects to line under protection - no cathode/anode distinction in bidirectional operation |
| Cathode | Transient current exit (either polarity) | Second identical terminal; connects to ground or return path - interchangeable with Anode due to symmetrical construction |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV surge) protection on 24 V/48 V DC rails with margin |
| MSL Level 1, 260 °C peak | Compatible with standard lead-free reflow profiles without pre-baking or special handling |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control, ADAS sensors, and body electronics |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at connector interface to clamp transients before they reach sensitive IC inputs. Use Value: Maintains signal integrity under ISO 16750-2 load dump (up to 35 V) and ISO 7637-2 pulses while meeting AEC-Q101 lifetime requirements. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field wiring surges and ESD events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input terminals, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Limits transient voltage to ≤328 V during 1 kV/500 A IEC 61000-4-5 combination wave tests, preserving ADC accuracy and isolation barrier integrity. |
| Telecom Line Card Protection | Power Supply Input Stage |
Use Scenario: Guarding Ethernet PHY interfaces, DSL line drivers, and PoE-powered devices against lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: First-stage protection device on differential pairs, operating in conjunction with common-mode chokes and secondary TVS arrays. Use Value: Symmetric clamping ensures balanced suppression on differential signals without skew or common-mode shift during 10/1000 μs surges. |
Use Scenario: Secondary surge suppression on 24 V or 48 V DC input rails downstream of primary MOV-based AC/DC front-end protection. IC Role / Device Role / Timing Role: Fast-response clamp limiting residual transients that pass through bulk MOVs or gas discharge tubes. Use Value: Clamps residual spikes to ≤328 V within <1 ns, preventing latch-up or gate oxide damage in downstream DC/DC controllers and PMICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Same VWM/VBR/VC specs; differs in packaging (tape-and-reel quantity code) and qualification level (commercial-grade E3/M3 vs. AEC-Q101 HM3) | Lacks AEC-Q101 validation; suitable for industrial/commercial but not automotive deployment | Select when AEC-Q101 is not required and cost sensitivity outweighs automotive qualification needs |
| 1.5SMC220CA | Higher package thermal resistance (RθJA ≈ 125 °C/W); same electrical specs but larger SMC (DO-214AB) footprint | Requires PCB layout change; better suited for higher average power dissipation scenarios where SMB thermal limits are marginal | Choose only if board space allows SMC package and thermal derating analysis confirms improved long-term reliability under repetitive surge conditions |
Compared with SMBJ220CA and 1.5SMC220CA, the P6SMB220CAHM3_A/H uniquely combines AEC-Q101 qualification, SMB footprint compatibility, and verified 600 W surge capability - making it the preferred choice for space-constrained automotive and industrial designs requiring certified reliability without layout revision.
Availability
P6SMB220CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, and telecom line card protection requiring stable component supply across extended production lifecycles.
Supply support for P6SMB220CAHM3_A/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, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability and automotive-grade solutions.
The P6SMB Series targets cost-sensitive yet reliability-critical transient protection applications, delivering AEC-Q101-qualified TVS performance in compact SMB packages for next-generation automotive, industrial, and communications equipment.
FAQ
What does the "CA" suffix indicate in P6SMB220CAHM3_A/H?
The "CA" suffix denotes a bidirectional configuration: the P6SMB220CAHM3_A/H conducts and clamps symmetrically in both polarities, making it ideal for protecting AC-coupled lines, differential buses, or floating circuits where polarity reversal may occur. This contrasts with unidirectional "A" variants that require correct anode/cathode orientation.
Is P6SMB220CAHM3_A/H suitable for IEC 61000-4-5 surge testing?
Yes - the P6SMB220CAHM3_A/H is rated for 600 W peak pulse power with a 10/1000 μs waveform, which covers IEC 61000-4-5 Level 4 (4 kV line-to-earth, 2 kV line-to-line) when applied to 24 V or 48 V systems. Its 328 V clamping voltage ensures protected ICs remain within safe operating limits during standardized surge events.
How does the HM3 suffix affect P6SMB220CAHM3_A/H qualification status?
The HM3 suffix indicates halogen-free, RoHS-compliant construction with full AEC-Q101 qualification - including stress tests for temperature cycling, high-temperature reverse bias, and ESD. This distinguishes P6SMB220CAHM3_A/H from commercial-grade variants (e.g., E3/M3) and validates its use in automotive powertrain and chassis modules.
What is the maximum operating temperature for P6SMB220CAHM3_A/H?
The P6SMB220CAHM3_A/H has a specified operating junction temperature range of –65 °C to +150 °C. At ambient temperatures above 25 °C, power derating applies per Figure 2 in the datasheet; for example, at TA = 85 °C, the maximum allowable peak pulse power drops to approximately 420 W to maintain TJ ≤ 150 °C.
Can P6SMB220CAHM3_A/H replace P6SMB220A in existing designs?
No - P6SMB220A is unidirectional and requires correct polarity placement, whereas P6SMB220CAHM3_A/H is bidirectional with no polarity marking. Substitution would require verifying that the circuit topology tolerates symmetrical clamping and that no forward-bias conduction paths exist that could be compromised by reverse conduction during normal operation.
P6SMB220CAHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 1.8A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
P6SMB220CAHM3_A/H FAQ
1.How can I place an order for P6SMB220CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB220CAHM3_A/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 P6SMB220CAHM3_A/H reliable?
The price and inventory of P6SMB220CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB220CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB220CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB220CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB220CAHM3_A/H?
P6SMB220CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB220CAHM3_A/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 P6SMB220CAHM3_A/H?
For technical support, including P6SMB220CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB220CAHM3_A/H requirements.
6.How does Aetrix verify that P6SMB220CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB220CAHM3_A/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 P6SMB220CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB220CAHM3_A/H?
All P6SMB220CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB220CAHM3_A/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 P6SMB220CAHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB220CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB220CAHM3_A/H Tags
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