CT-M Glass-Sealed Hermetic Receptacles, −55 to +200 °C
Glass-to-metal seal · 152 kPa leak-tight · −55 to +200 °C
ZH28 Glass-Sealed Hermetic Receptacles, 3 to 61 Contacts
Glass-sealed · 3 to 61 contacts · −60 to +155 °C
ZH28 is a glass-sealed hermetic receptacle for DC, AC and pulse circuits. It mates with ZH23 plugs. Eighteen standard contact layouts from 3 to 61 contacts cover shell sizes 14 to 39, with contact diameters of 1.0, 1.5 and 2.0 mm.
- Sealing
- Glass-sealed
- Contacts
- 3 to 61
- Current rating
- 3–9 A (max. 6–18 A)
- Temperature
- −60 to +155 °C (max. 200 °C)
- Rated voltage
- 400–700 V
Key features
- Glass-sealed hermetic receptacle; mates with ZH23 plugs
- For DC, AC and pulse circuits
- Contacts Ø 1.0, 1.5 and 2.0 mm
- Three voltage classes: 700, 500 and 400 V working voltage
- Vibration 1–5000 Hz up to 40 g; shock up to 500 g
- Square-flange mounting, shells 14 to 39
Specifications
| Parameter | Value | Condition |
|---|---|---|
| Working / test voltage, class A | 700 V / 2100 V | |
| Working / test voltage, class B | 500 V / 1850 V | |
| Working / test voltage, class C | 400 V / 1600 V | |
| Insulation resistance | ≥ 5000 MΩ |
| Parameter | Value | Condition |
|---|---|---|
| Operating temperature | −60 to +155 °C | Up to 200 °C maximum |
| Vibration | 1–5000 Hz, ≤ 40 g | |
| Shock | 150 g repeated; 500 g single | |
| Humidity | 92–98 % at +30 to +60 °C | |
| Salt spray | 48 h | |
| Durability | 500 mating cycles |
Values not listed above — for example vibration level, leak rate or other environmental tests — can be tested to your requirements, including third-party testing. Specifications are subject to change; contact us for the current datasheet.
Contact layouts
| Contacts / shell | Contact diameters |
|---|---|
| 4 / 14 | Ø 1.0 |
| 3 / 14 | Ø 1.5 |
| 10 / 18 | Ø 1.0 |
| 7 / 18 | Ø 1.5 |
| 19 / 22 | Ø 1.0 |
| 10 / 22 | Ø 1.5 |
| 7 / 22 | Ø 1.5 or Ø 2.0 |
| 19 / 24 | Ø 1.0 and Ø 1.5 |
| 19 / 27 | Ø 1.5 |
| 28 / 27 | Ø 1.0 or Ø 1.5 |
| 32 / 27 | Ø 1.0 |
| 41 / 30 | Ø 1.0 |
| 24 / 30 | Ø 1.5 |
| 55 / 33 | Ø 1.0 |
| 32 / 33 | Ø 1.0 or Ø 2.0 |
| 61 / 36 | Ø 1.0 |
| 43 / 36 | Ø 1.0 or Ø 1.5 |
| 45 / 39 | Ø 1.0, Ø 1.5 and Ø 2.0 |
Other layouts on request.
Contact sizes and current ratings
| Contact size | Engaging diameter | Contact resistance | Current rating | Wire size |
|---|---|---|---|---|
| Ø 1.0 mm | 1.0 mm | ≤ 15 mΩ | 3 A (max. 6 A) | — |
| Ø 1.5 mm | 1.5 mm | ≤ 10 mΩ | 6 A (max. 12 A) | — |
| Ø 2.0 mm | 2.0 mm | ≤ 8 mΩ | 9 A (max. 18 A) | — |
How to order
ZH28- [contacts]/[shell] B-1-b-B
Example: ZH28-4/14B-1-b-B — 4 contacts, shell 14, pin contacts, without backshell, key b, all-climate version
| Code segment | Options |
|---|---|
| Contacts / shell | |
| B | |
| 1 | |
| Key | |
| B |
Contact counts and terminations
Standard contact counts
- 3
- 4
- 7
- 10
- 19
- 24
- 28
- 32
- 41
- 43
- 45
- 55
- 61
Terminations
- Solder
Typical applications
- Sealed power and control units
- Pressurized and gas-filled enclosures
- Pulse and power electronics
- Industrial instrumentation
Frequently asked questions
Which plug mates with ZH28?
ZH23 plugs with the same contact count and shell size.
Selection guides
From sample to production
Send your requirement
Part number, drawing, pin-out or a short description of your application.
Configuration and quote
Our engineers match the configuration and reply with a drawing and quotation.
Samples
Samples are made to your order. Third-party testing to your specification is available on request.
Your approval
You test the samples in your own equipment and approve them.
Series production
Production follows the approved sample configuration.
Need a quote or a drawing?
Send your part number, pin-out or drawing. An engineer will reply by email.
Related series
K Series Hermetic Receptacles (26482 Type)
26482 type · shells 8–24 · 3 to 61 contacts