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Vishay General Semiconductor - Diodes Division SE20PB-M3/85A
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- Part No.:
- SE20PB-M3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-220AA
- Datasheet:
-
SE20PB-M3/85A.pdf
- Description:
- DIODE GEN PURP 100V 1.6A DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,276
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Product details
Overview
SE20PB-M3/85A from Vishay General Semiconductor is a surface-mount, AEC-Q101-qualified, single silicon rectifier diode in the eSMP® SMP (DO-220AA) package, rated for 100 V repetitive peak reverse voltage (VRRM), 2.0 A average forward current (IF(AV)), and 32 A non-repetitive surge current (IFSM). It delivers low forward voltage drop (0.85 V at 2.0 A, 125 °C), 5 μA max reverse leakage at 25 °C, and 1.2 μs typical reverse recovery time - optimized for power line polarity and rail-to-rail ESD protection in automotive and industrial DC power rails.
For engineers reviewing the SE20PB-M3/85A datasheet, SE20PB-M3/85A pinout, SE20PB-M3/85A application, or SE20PB-M3/85A equivalent, key selection criteria include its AEC-Q101 qualification, MSL Level 1 moisture sensitivity, 175 °C maximum junction temperature, SMP package footprint compatibility with automated placement, and verified ESD immunity per AEC-Q101-001 (H3B class, >8 kV HBM).
Technical Context
This device implements an oxide planar chip junction structure enabling low VF and fast trr while maintaining robust thermal performance (RθJA = 105 °C/W, RθJM = 20 °C/W). Its cathode-band polarity marking and matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 solderability standards.
The SE20PB-M3/85A operates across -55 °C to +175 °C junction temperature range and meets UL 94 V-0 flammability requirements. Its 1.0 mm typical profile and DO-220AA mechanical outline support high-density PCB layouts in space-constrained automotive control modules and industrial power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum reverse blocking capability for 12 V/24 V automotive supply rail protection |
| IF(AV) | 2.0 A - Continuous forward current rating at 5.0 mm × 5.0 mm 2 oz. copper pad (TM ≤ 138 °C) |
| VF @ 2.0 A, 125 °C | 0.85 V - Low conduction loss enabling <1.7 W average power dissipation at full load |
| IR @ VR, 25 °C | 5 μA max - Minimal leakage ensuring stable bias in high-impedance protection circuits |
| trr | 1.2 μs typical - Fast recovery minimizes switching losses in moderate-frequency (<1 MHz) DC/DC input stages |
| Junction Temp Range | -55 °C to +175 °C - Enables operation in under-hood automotive environments and industrial enclosures |
| ESD Rating | H3B class (>8 kV HBM) - Validated immunity per AEC-Q101-001 for robustness against assembly and field ESD events |
Pinout & Package
Package: SMP (DO-220AA), halogen-free, RoHS-compliant, commercial-grade (M3 suffix), 1.0 mm typical height, 0.024 g unit weight. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to positive side of protected supply rail; must route with low-inductance path for surge handling |
| Cathode | Forward current exit / reverse-blocking terminal | Marked with color band; ties to system ground or return path; defines polarity protection direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive power electronics including body control modules and ADAS power inputs |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking or special handling |
| Oxide planar junction | Enables consistent VF and trr across production lots and temperature extremes |
| Low-profile SMP package | 1.0 mm height enables stacking under connectors or shields in compact ECUs and motor drives |
| Matte tin plating | Ensures reliable solder wetting and intermetallic formation per J-STD-002/JESD 22-B102 |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Power Input Stage |
|---|---|
Use Scenario: Reverse polarity protection on 12 V battery feed to microcontroller and CAN transceiver power domain. IC Role / Device Role / Timing Role: Unidirectional DC blocking diode preventing damage during battery jump-start or misconnection. Use Value: Withstands 32 A surge (IFSM) and operates up to 175 °C ambient, eliminating need for external fusing or thermal derating. |
Use Scenario: Rail-to-rail transient suppression on 24 V DC input to programmable logic controller backplane. IC Role / Device Role / Timing Role: Fast-recovery rectifier clamping negative transients and blocking reverse current during hot-swap events. Use Value: 1.2 μs trr and 5 μA IR ensure minimal interference with 24 V logic signaling and long-term stability in dusty, high-vibration environments. |
| Consumer Appliance Mainboard | Medical Diagnostic Power Supply |
Use Scenario: Polarity guard on AC/DC adapter input to washing machine main control board. IC Role / Device Role / Timing Role: Primary rectification and ESD shunt for USB-C or barrel-jack input interfaces. Use Value: >8 kV HBM ESD rating and UL 94 V-0 molding compound meet IEC 60335-1 safety requirements for household appliances. |
Use Scenario: Isolation barrier protection in Class II medical-grade 48 V auxiliary supply for imaging sensor biasing. IC Role / Device Role / Timing Role: Low-leakage, high-TJ rectifier ensuring signal integrity and patient isolation compliance. Use Value: 5 μA IR at 25 °C and 100 μA at 125 °C prevent drift in precision analog front-ends; AEC-Q101 qualification supports extended lifecycle validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SE20PBHM3/85A | Automotive-grade variant with JESD 201 Class 2 whisker resistance; identical electrical specs | Required for AEC-Q101-compliant designs where enhanced whisker mitigation is mandated | Select HM3 when automotive OEM PPAP requires Class 2 whisker testing; otherwise M3 suffices for commercial/industrial use |
| SB2100-TB | 2 A Schottky rectifier, 100 V VRRM, VF ≈ 0.55 V @ 2 A, but no AEC-Q101 qualification or HBM >8 kV rating | Limited to non-automotive, lower-temperature applications due to 125 °C TJ max and no automotive qualification | Choose SB2100-TB only for cost-sensitive consumer products where ESD robustness and 175 °C operation are not required |
Compared with SE20PBHM3/85A, the SE20PB-M3/85A offers identical electrical performance but omits automotive whisker testing - reducing cost for industrial and consumer use. Versus SB2100-TB, it trades higher VF for guaranteed AEC-Q101 reliability, 175 °C operation, and certified ESD immunity - critical for automotive and medical power inputs.
Availability
SE20PB-M3/85A is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC power inputs, and consumer appliance mainboards requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for SE20PB-M3/85A 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and MOSFETs, with emphasis on high-reliability, automotive-qualified, and industry-standard components.
The eSMP® Series - including SE20PB-M3/85A - was developed specifically for space-constrained, high-temperature power rail protection in automotive and industrial systems demanding AEC-Q101 qualification and robust ESD immunity.
FAQ
What is the maximum junction temperature rating for the SE20PB-M3/85A?
The SE20PB-M3/85A has a maximum junction temperature (TJ) of +175 °C, validated per AEC-Q101 stress testing. This allows continuous operation in under-hood automotive environments and sealed industrial enclosures without thermal derating below 2.0 A average forward current when mounted on a 5.0 mm × 5.0 mm 2 oz. copper pad. The SE20PB-M3/85A maintains specified VF and IR performance across this full range.
Does the SE20PB-M3/85A have AEC-Q101 qualification?
Yes, the SE20PB-M3/85A is fully AEC-Q101 qualified per the Vishay document 87905 (Revision: 16-Jun-2023). This includes stress testing for temperature cycling, humidity bias, high-temperature operating life, and ESD per AEC-Q101-001 (H3B class). The SE20PB-M3/85A carries the "M3" suffix indicating commercial-grade qualification - distinct from "HM3", which adds JESD 201 Class 2 whisker testing.
What does the "85A" in SE20PB-M3/85A indicate?
The "85A" suffix denotes the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 10,000 units per reel. This format is optimized for high-volume SMT placement equipment. The SE20PB-M3/85A shares identical electrical and thermal specifications with the 7-inch reel variant (SE20PB-M3/84A); only packaging differs.
Is the SE20PB-M3/85A suitable for rail-to-rail ESD protection?
Yes - the SE20PB-M3/85A is explicitly designed for rail-to-rail protection per Vishay's stated typical applications. Its >8 kV HBM ESD rating (AEC-Q101-001 H3B class), low IR (5 μA), and fast trr (1.2 μs) enable effective clamping of transient overvoltages between power rails while minimizing leakage and recovery distortion. The SE20PB-M3/85A is commonly deployed across 12 V, 24 V, and 48 V DC rails in automotive and industrial systems.
What is the thermal resistance from junction to ambient (RθJA) for the SE20PB-M3/85A?
The typical junction-to-ambient thermal resistance (RθJA) for the SE20PB-M3/85A is 105 °C/W under free-air conditions on a 5.0 mm × 5.0 mm 2 oz. FR4 PCB. This value assumes the recommended mounting pad layout per the DO-220AA outline drawing. For heatsink-mounted applications, the junction-to-mount thermal resistance (RθJM) is 20 °C/W - a key parameter used when calculating temperature rise under high-power pulsed loads.
SE20PB-M3/85A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-220AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 1.6A
- Voltage - Forward (Vf) (Max) @ If:
- 1.05 V @ 2 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.2 µs
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 13pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
- Operating Temperature - Junction:
- -55°C ~ 175°C
SE20PB-M3/85A FAQ
1.How can I place an order for SE20PB-M3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for SE20PB-M3/85A 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 SE20PB-M3/85A reliable?
The price and inventory of SE20PB-M3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SE20PB-M3/85A is usually 5 days.
3.What payment methods are accepted for SE20PB-M3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SE20PB-M3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SE20PB-M3/85A?
SE20PB-M3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SE20PB-M3/85A 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 SE20PB-M3/85A?
For technical support, including SE20PB-M3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SE20PB-M3/85A requirements.
6.How does Aetrix verify that SE20PB-M3/85A is sourced from the original manufacturer or authorized distributors?
All SE20PB-M3/85A 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 SE20PB-M3/85A meets industry standards.
7.What is the process for return or replacement of SE20PB-M3/85A?
All SE20PB-M3/85A units undergo pre-shipment inspection (PSI). If there is an issue with SE20PB-M3/85A, 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 SE20PB-M3/85A part is unused and in its original packaging.
Return procedure for SE20PB-M3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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