Protekdevices

GBLC Series (ESD Protection)

GBLC[VOLTAGE]C[SUFFIX]
|       |    |    |
|       |    |    +-- -LF = lead-free, -TR = tape/reel
|       |    +-- C = Bidirectional
|       +-- 2-digit voltage code (03 = 3.3V, 05 = 5V)
+-- GBLC = ESD protection series

Example: GBLC03C
         |   | |
         |   | +-- C = Bidirectional
         |   +-- 03 = 3.3V
         +-- GBLC series

Example: GBLC15C-LF
         |   | | |
         |   | | +-- LF = Lead-free
         |   | +-- C = Bidirectional
         |   +-- 15 = 15V
         +-- GBLC series

PSM Series (Automotive/RS-232 Protection)

PSM[MODEL][-LF]
|     |      |
|     |      +-- -LF = Lead-free
|     +-- Model number (712 = RS-232, 05/12/24 = voltage)
+-- PSM = Protection for signal/data lines

Example: PSM712
         |  |
         |  +-- 712 = RS-232 protection (7V standoff)
         +-- PSM series

Example: PSM712-LF
         |  |  |
         |  |  +-- LF = Lead-free
         |  +-- 712 = RS-232 protection
         +-- PSM series

ULC Series (Ultra-Low Capacitance)

ULC[VOLTAGE][LINES][SUFFIX]
|      |       |       |
|      |       |       +-- -LF = lead-free, -TR = tape/reel
|      |       +-- 2-digit line count (12 = 12 lines, 24 = 24 lines)
|      +-- 2-digit voltage (05 = 5V)
+-- ULC = Ultra-low capacitance ESD array

Example: ULC0512
         |  | ||
         |  | |+-- 12 = 12 protection lines
         |  | +-- 05 = 5V
         +-- ULC series

Example: ULC0524-LF
         |  | || |
         |  | || +-- LF = Lead-free
         |  | |+-- 24 = 24 protection lines
         |  | +-- 05 = 5V
         +-- ULC series

SMD Series (Surface Mount TVS)

SMD[POWER][VOLTAGE][SUFFIX]
|     |       |        |
|     |       |        +-- -LF = lead-free, -TR = tape/reel
|     |       +-- 2-digit voltage (12 = 12V, 24 = 24V)
|     +-- 2-digit power code (05 = 500W, 15 = 1500W)
+-- SMD = Surface mount TVS

Example: SMD0512
         |  | ||
         |  | |+-- 12 = 12V standoff
         |  | +-- 05 = 500W power
         +-- SMD series

Example: SMD1524-LF
         |  | || |
         |  | || +-- LF = Lead-free
         |  | |+-- 24 = 24V standoff
         |  | +-- 15 = 1500W power
         +-- SMD series

Voltage Decoding

TVS Series

GBLC Series

PSM Series

Power Ratings

TVS Series Power Codes

SMD Series Power Codes

Package Types

Directionality

Bidirectional Devices

Unidirectional Devices

Suffix Codes

Replacement Compatibility

ProTek parts are compatible when:

1. Same series (TVS vs TVS, GBLC vs GBLC)
2. Same voltage rating (03 = 03, 15 = 15)
3. Same directionality (bidirectional cannot replace unidirectional)
4. Same or higher power (for TVS/SMD series)

Lead-Free Compatibility

Lead-free (-LF) variants are interchangeable with standard variants:

• PSM712 and PSM712-LF are functionally identical
• -LF suffix only indicates RoHS compliance

Common Part Numbers

TVS Series

GBLC Series

PSM Series

ULC Series

SMD Series

Handler Implementation Notes

Pattern Matching

// TVS series - Standard TVS Diodes
"^TVS[0-9]{5}.*"

// GBLC series - ESD Protection (with C suffix)
"^GBLC[0-9]{2}C.*"

// PSM series - Automotive/RS-232 Protection
"^PSM[0-9]+.*"

// ULC series - Ultra-Low Capacitance
"^ULC[0-9]{4}.*"

// SMD series - Surface Mount TVS
"^SMD[0-9]{4}.*"

// SP series - Surge Protection
"^SP[0-9]{2,3}.*"

// LC series - Low Capacitance
"^LC[0-9]{2}.*"

Voltage Extraction

String extractVoltage(String mpn) {
    String upperMpn = mpn.toUpperCase();

    // TVS series: TVS03500 -> 035 -> 3.5V
    if (upperMpn.startsWith("TVS")) {
        String voltageCode = upperMpn.substring(3, 6);  // e.g., "035"
        int voltageInt = Integer.parseInt(voltageCode);
        if (voltageInt < 100) {
            return String.format("%.1f", voltageInt / 10.0);  // 035 -> "3.5"
        }
        return String.valueOf(voltageInt / 10);  // 150 -> "15"
    }

    // GBLC series: GBLC03C -> 03 -> 3.3V
    if (upperMpn.startsWith("GBLC")) {
        String voltageCode = upperMpn.substring(4, 6);  // e.g., "03"
        int voltage = Integer.parseInt(voltageCode);
        if (voltage == 3) return "3.3";
        return String.valueOf(voltage);
    }

    // PSM series: PSM712 -> 7V (specific model)
    if (upperMpn.startsWith("PSM")) {
        if (upperMpn.contains("712")) return "7";
        // Extract numeric portion
    }

    // SMD series: SMD0512 -> 12V (last 2 digits)
    if (upperMpn.matches("^SMD[0-9]{4}.*")) {
        String voltageCode = upperMpn.substring(5, 7);  // e.g., "12"
        return String.valueOf(Integer.parseInt(voltageCode));
    }

    return "";
}

Power Rating Extraction

int getPowerRating(String mpn) {
    String upperMpn = mpn.toUpperCase();

    // SMD series: SMD0512 -> 05 -> 500W
    if (upperMpn.matches("^SMD[0-9]{4}.*")) {
        String powerCode = upperMpn.substring(3, 5);  // e.g., "05"
        return Integer.parseInt(powerCode) * 100;  // 05 -> 500W
    }

    // TVS series: last 2 digits encode power
    if (upperMpn.startsWith("TVS")) {
        String powerCode = upperMpn.substring(6, 8);  // e.g., "00"
        return Integer.parseInt(powerCode) * 10;  // 50 -> 500W
    }

    return 0;
}

Line Count Extraction (ULC series)

int getLineCount(String mpn) {
    String upperMpn = mpn.toUpperCase();

    // ULC series: ULC0512 -> 12 lines, ULC0524 -> 24 lines
    if (upperMpn.startsWith("ULC")) {
        String lineCode = upperMpn.substring(5, 7);  // e.g., "12"
        return Integer.parseInt(lineCode);
    }

    return 1;  // Default to single-channel
}

Related Files

• Handler: manufacturers/ProTekDevicesHandler.java
• Component types: DIODE (all series registered as diodes)
• No manufacturer-specific types defined

Application Selection Guide

Learnings & Edge Cases

• GBLC always bidirectional: The "C" suffix indicates bidirectional, all GBLC parts have this
• PSM712 specific: PSM712 is specifically for RS-232, uses 7V standoff for +/-12V signals
• SMD naming: SMD series is named for package type, not to be confused with generic "SMD" term
• ULC line count: Second 2 digits indicate number of protection lines (12, 24)
• Voltage encoding varies: TVS uses 3 digits (divide by 10), GBLC uses 2 digits, SMD uses last 2 digits
• Lead-free interchangeable: -LF suffix only affects manufacturing process, electrically identical