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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Vishay General Semiconductor - Diodes Division S1PKHM3/84A

Name: S1PKHM3/84A
Brand: Vishay General Semiconductor - Diodes Division
SKU: S1PKHM3/84A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1PKHM3/84A

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: DO-220AA

Datasheet:: S1PKHM3/84A.pdf

Description:: DIODE GEN PURP 800V 1A DO220AA

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Product details

Overview

S1PKHM3/84A from Vishay General Semiconductor is an automotive-grade, high-current-density, glass-passivated surface-mount silicon rectifier diode in the SMP (DO-220AA) package. It delivers 1.0 A average forward current, 800 V maximum repetitive peak reverse voltage, 0.95 V forward voltage at 1.0 A and 125 °C, 1 μA reverse leakage at 25 °C, and 1.8 μs typical reverse recovery time - enabling compact, thermally efficient polarity and rail-to-rail protection in automotive power rails.

For engineers reviewing the S1PKHM3/84A datasheet, S1PKHM3/84A pinout, S1PKHM3/84A application, or S1PKHM3/84A equivalent, key selection criteria include its AEC-Q101 qualification, MSL Level 1 rating, 150 °C max junction temperature, low-profile 1.0 mm height, and automotive-grade whisker test compliance (JESD 201 Class 2).

Technical Context

This device is a single, unidirectional, planar-diffused silicon PN junction rectifier with glass-passivated chip construction. Its low thermal resistance (R_θJL = 15 °C/W, R_θJC = 20 °C/W) and 1.0 mm profile support high-power density mounting on PCBs with 5.0 mm × 5.0 mm copper pads. The cathode band marking and matte tin-plated leads ensure reliable automated placement and solderability per J-STD-002 and JESD 22-B102.

The S1PKHM3/84A operates across -55 °C to +150 °C and sustains 30 A non-repetitive surge current (10 ms half-sine). Its 6.0 pF junction capacitance at 4.0 V / 1 MHz and fast 1.8 μs trr support moderate-speed switching in DC feed and protection circuits where soft recovery is not required.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - supports DC bus protection up to 560 V RMS or 800 V DC systems without derating
I_F(AV)	1.0 A - continuous conduction capability for low-to-medium power automotive subsystems
V_F @ 1.0 A, 125 °C	0.95 V - reduces forward power loss to ≤0.95 W at rated current and elevated temperature
I_R @ 25 °C	1 μA - ensures minimal leakage in battery-backed or always-on circuits
t_rr	1.8 μs - enables operation in 100–500 kHz rectification or clamping applications
T_J max	150 °C - allows use in under-hood environments with minimal heatsinking
Package	SMP (DO-220AA) - 1.0 mm height, 3.61 mm × 2.18 mm footprint, UL 94 V-0 molding

Pinout & Package

Package: SMP (DO-220AA), surface-mount, single-anode/cathode configuration. Cathode identified by molded color band. Matte tin-plated terminals, compliant with J-STD-002 and JESD 22-B102.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to positive side of input source; must be routed with adequate copper area for thermal dissipation
Cathode	Forward current exit terminal; marked with band	Connected to load or ground reference; thermal measurement point for R_θJL (measured at band terminal)

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive power electronics including body control modules and infotainment power supplies
MSL Level 1 (260 °C peak)	Compatible with standard lead-free reflow profiles without preconditioning or dry-pack requirements
JESD 201 Class 2 whisker resistance	Ensures long-term reliability in high-vibration, high-temperature automotive harnesses and connectors
1.0 mm profile	Enables stacking or tight spacing in multi-layer power modules and space-constrained ECUs
Glass-passivated junction	Provides robust moisture and contamination immunity for under-hood and chassis-mounted applications

Applications

Automotive Body Control Module (BCM)	Infotainment Power Supply Input
Use Scenario: Reverse-polarity protection on 12 V battery-fed microcontroller power rails. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed between battery connector and LDO input. Use Value: Prevents damage during jump-start misconnection while maintaining <1 V drop at 1 A load current.	Use Scenario: Input rectification and overvoltage clamping in dual-input (battery + USB-C PD) infotainment power stage. IC Role / Device Role / Timing Role: Primary DC feed diode routing power from either source to shared buck converter input. Use Value: Enables seamless source switchover with 0.95 V forward drop at 125 °C and 1 μA leakage preserving standby current budget.
LED Headlamp Driver Protection	Engine Control Unit (ECU) Rail Clamp
Use Scenario: Polarity protection and transient suppression on constant-current LED driver input. IC Role / Device Role / Timing Role: Series protection element upstream of buck controller IC and gate driver. Use Value: Withstands 30 A surge (10 ms) from load dump events and maintains stable 800 V blocking margin above nominal 14 V system.	Use Scenario: Rail-to-rail clamp protecting 5 V logic supply against back-EMF from solenoid drivers. IC Role / Device Role / Timing Role: Fast-recovery clamp diode shunting inductive kickback to ground. Use Value: 1.8 μs t_rr and 6.0 pF C_J minimize ringing and EMI during 10–100 kHz switching transitions.

Automotive Body Control Module (BCM)

Infotainment Power Supply Input

Use Scenario: Reverse-polarity protection on 12 V battery-fed microcontroller power rails.

IC Role / Device Role / Timing Role: Unidirectional blocking diode placed between battery connector and LDO input.

Use Value: Prevents damage during jump-start misconnection while maintaining <1 V drop at 1 A load current.

Use Scenario: Input rectification and overvoltage clamping in dual-input (battery + USB-C PD) infotainment power stage.

IC Role / Device Role / Timing Role: Primary DC feed diode routing power from either source to shared buck converter input.

Use Value: Enables seamless source switchover with 0.95 V forward drop at 125 °C and 1 μA leakage preserving standby current budget.

LED Headlamp Driver Protection

Engine Control Unit (ECU) Rail Clamp

Use Scenario: Polarity protection and transient suppression on constant-current LED driver input.

IC Role / Device Role / Timing Role: Series protection element upstream of buck controller IC and gate driver.

Use Value: Withstands 30 A surge (10 ms) from load dump events and maintains stable 800 V blocking margin above nominal 14 V system.

Use Scenario: Rail-to-rail clamp protecting 5 V logic supply against back-EMF from solenoid drivers.

IC Role / Device Role / Timing Role: Fast-recovery clamp diode shunting inductive kickback to ground.

Use Value: 1.8 μs t_rr and 6.0 pF C_J minimize ringing and EMI during 10–100 kHz switching transitions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar rectifier diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STPS1H100S	1.0 A / 100 V Schottky; VF = 0.55 V @ 1 A; no trr spec; TJ max = 175 °C	Limited to ≤100 V systems; lower VF improves efficiency but lacks 800 V blocking	Select when ultra-low VF and high-temp operation are critical, and voltage stress is ≤100 V.
ONsemi MUR1080CT	10 A dual common-cathode; VF = 1.7 V @ 10 A; trr = 75 ns; TO-220AC package	Higher current, faster recovery, but through-hole, larger footprint, and higher VF at 1 A	Choose for high-current, high-speed flyback snubbing where board space and assembly method allow TO-220.

Compared with STPS1H100S and MUR1080CT, the S1PKHM3/84A uniquely balances 800 V blocking, AEC-Q101 qualification, ultra-low profile, and automotive whisker resistance - making it optimal for space-constrained, safety-critical 12 V/24 V automotive power nodes where medium-voltage robustness matters more than sub-100 V efficiency or ultrafast recovery.

Availability

S1PKHM3/84A is available at Aetrix Electronics and suitable for automotive body control modules, infotainment power supplies, LED headlamp drivers, and engine control unit rail protection requiring stable component supply and full AEC-Q101 traceability.

Supply support for S1PKHM3/84A 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, MOSFETs, and optoelectronics with emphasis on reliability, power efficiency, and automotive qualification.

The eSMP® Series - including S1PKHM3/84A - was designed specifically for space-constrained automotive and industrial power management applications demanding AEC-Q101 compliance, low thermal resistance, and high surge robustness in ultra-thin packages.

FAQ

What is the maximum junction temperature rating for the S1PKHM3/84A?

The S1PKHM3/84A has a maximum operating junction temperature of +150 °C, verified per the Vishay datasheet Document Number 88917. This rating enables deployment in under-hood automotive environments without forced cooling. Derating curves show usable current down to 0.5 A at 125 °C ambient with standard PCB copper pad layout. The S1PKHM3/84A's thermal resistance values (R_θJA = 105 °C/W, R_θJL = 15 °C/W) support this rating when mounted per JEDEC standards.

Is the S1PKHM3/84A suitable for lead-free reflow soldering?

Yes, the S1PKHM3/84A is rated MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, fully compatible with standard lead-free soldering processes. Its matte tin-plated terminals meet J-STD-002 and JESD 22-B102 solderability requirements. No dry-packaging or baking is required prior to assembly. The S1PKHM3/84A's halogen-free, RoHS-compliant construction aligns with modern environmental compliance mandates.

How does the S1PKHM3/84A differ from the commercial-grade S1PK-M3/84A?

The S1PKHM3/84A is the automotive-grade variant, distinguished by JESD 201 Class 2 whisker resistance testing and AEC-Q101 qualification - unlike the commercial S1PK-M3/84A which meets only Class 1A. Both share identical electrical specs (V_RRM = 800 V, I_F(AV) = 1.0 A, V_F = 0.95 V), but only the S1PKHM3/84A is approved for automotive power distribution, BCM, and ECU applications requiring extended temperature cycling and vibration reliability.

What is the reverse recovery time (t_rr) of the S1PKHM3/84A and how is it measured?

The S1PKHM3/84A has a typical reverse recovery time of 1.8 μs, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, per the Vishay datasheet. This value reflects its performance as a moderately fast recovery rectifier - suitable for 100–500 kHz applications like DC feed and clamping, but not optimized for ultra-high-frequency SMPS primary-side rectification. The S1PKHM3/84A's t_rr is confirmed across temperature and consistent with its planar PN junction design.

Does the S1PKHM3/84A have a defined polarity marking, and where is it located?

Yes, the S1PKHM3/84A uses a molded cathode band on the SMP (DO-220AA) package body to indicate polarity - consistent with industry-standard diode marking. The band is positioned adjacent to the cathode terminal and visible in top-down view. This marking is laser-etched and remains legible after reflow. Correct orientation is critical: the cathode band must connect toward the load or ground side of the circuit. The S1PKHM3/84A's pinout is strictly anode–cathode with no alternate configurations.

S1PKHM3/84A Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: eSMP®

Package/Case:: DO-220AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 800 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 1 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 1.8 µs

Current - Reverse Leakage @ Vr:: 1 µA @ 800 V

Capacitance @ Vr, F:: 6pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DO-220AA (SMP)

Operating Temperature - Junction:: -55°C ~ 150°C

S1PKHM3/84A FAQ

1.How can I place an order for S1PKHM3/84A through Aetrix?

Please submit a Request for Quotation (RFQ) for S1PKHM3/84A 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 S1PKHM3/84A reliable?

The price and inventory of S1PKHM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1PKHM3/84A is usually 5 days.

3.What payment methods are accepted for S1PKHM3/84A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1PKHM3/84A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1PKHM3/84A?

S1PKHM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1PKHM3/84A 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 S1PKHM3/84A?

For technical support, including S1PKHM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1PKHM3/84A requirements.

6.How does Aetrix verify that S1PKHM3/84A is sourced from the original manufacturer or authorized distributors?

All S1PKHM3/84A 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 S1PKHM3/84A meets industry standards.

7.What is the process for return or replacement of S1PKHM3/84A?

All S1PKHM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with S1PKHM3/84A, 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 S1PKHM3/84A part is unused and in its original packaging.

Return procedure for S1PKHM3/84A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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